Class / Patent application number | Description | Number of patent applications / Date published |
188105000 | Multiple | 73 |
20100193302 | METHOD FOR THE SECURED RELEASE OF AN ELECTROMECHANICALLY ACTUABLE PARKING BRAKE - A method to limit overheating of a brake equipped with an electromechanically actuable parking brake including the steps of: driving a threaded spindle by an electric motor until a power drain (I | 08-05-2010 |
20130341133 | SHOVEL AND METHOD OF CONTROLLING SHOVEL - A shovel includes a turning electric motor configured to drive a turning body to turn and a turning brake hydraulic motor mechanically connected to the turning body or the turning electric motor. In a state where a turning operation part for turning the turning body is unoperated, the turning body is braked using the turning brake hydraulic motor and the braking operation of a mechanical brake unit for mechanically holding the turning body stationary is released when an operation part for performing an operation other than the turning of the turning body is operated. | 12-26-2013 |
20160146275 | ELECTROHYDRAULIC BRAKE RELEASE DEVICE AND BRAKE SYSTEM - The invention relates to an electrohydraulic brake release device ( | 05-26-2016 |
188106000 | Vehicle | 70 |
20080236961 | VEHICLE-USE DISC BRAKE - A disc brake in which three pistons are arranged respectively on both sides of a brake disc to miniaturize the disc brake and to enhance the merchantability of a motorcycle by simplifying the appearance shape of the disc brake. A first oil passage provides a communication with first and second oil pressure chambers respectively facing back surfaces of the first and second pistons. A second oil passage provides a communication with third, fourth, fifth and sixth oil pressure chambers respectively facing back surfaces of the third to sixth pistons. The first and second oil passages are formed inside of a caliper body. | 10-02-2008 |
20100206673 | BRAKE SYSTEM FOR A MOTOR VEHICLE - A brake system for a motor vehicle which simplifies the hydraulic design and avoids a vacuum prevailing over a relatively long period of time. The first hydraulic unit has a suction volume, which is connected to the suction side of the pump and which, in the event of a change in the pressure on the suction side of the pump, provides a pressure and volume equalization by means of the brake fluid stored in the suction volume, with an elastic element. | 08-19-2010 |
20100236879 | METHOD FOR RELEASING A PARKING BRAKE OF A MOTOR VEHICLE - In the method a drive tool ( | 09-23-2010 |
20110100769 | ARCHITECTURE FOR AN ELECTROMECHANICAL BRAKING SYSTEM - The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels, each of the wheels being fitted with brakes, each having a certain number of electromechanical braking actuators, the architecture including controllers for delivering power signals to the actuators in response to a braking order, the wheels on each of the undercarriages being grouped together in first and second complementary groups such that for each group of wheels, a first group of actuators is controlled by one controller that controls those actuators only, and a complementary second group of actuators is controlled by another controller that controls only those actuators. | 05-05-2011 |
20110100770 | POWER SUPPLY ARCHITECTURE FOR AIRCRAFT BRAKES FITTED WITH ELECTROMECHANICAL ACTUATORS - The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels (L | 05-05-2011 |
20110297493 | BRAKE BOOSTER - The invention relates to an electromechanical brake booster having a piston rod to be actuated using muscular power, and an electromechanical actuator. Muscular power acting upon the pedal rod is transmitted via an elastic transmission element, for example a spring element, and the actuator power is transmitted separately thereof via its proper elastic transmission element which has for example a number of spring elements and dampers arranged in parallel thereto. The controllable brake booster is operated depending on a variable representing the relative deviation of the booster body and the input element. The brake booster according to the invention allows the adjustment of a booster characteristic which is variable in a wide range and which inter alia can depend on an actuation path, an actuation speed and/or an actuation acceleration. The switch-over to different modes, for example a sports mode, is also possible. | 12-08-2011 |
20120090928 | METHOD FOR OPERATING A BRAKING SYSTEM, BRAKING SYSTEM AND MOTOR VEHICLE HAVING A BRKAING SYSTEM - A method for operating a braking system in a motor vehicle having at least two wheel brakes ( | 04-19-2012 |
20140034432 | ELECTRIC BRAKE ACTUATOR FOR VEHICLES - An electric brake actuator configured to be operatively connected to a vehicle brake to operate the vehicle brake includes two electric motors each having an output shaft rotated by operation of the respective motor; an actuator output connectable to the vehicle brake, and a differential operatively connected to the actuator output and to both the output shaft of the first electric motor and the output shaft of the second electric motor to transfer the first and second driving forces to the actuator output by way of the differential. | 02-06-2014 |
20140144733 | SHIFT-BY-WIRE SYSTEM FOR ACTUATING A VEHICLE PARK BRAKE - A vehicle park-brake system includes a park brake, a solenoid; a first pressure source; a servo for disengaging the park-brake using the first pressure source, and for disengaging the park-brake using a force produced by the solenoid that actuates first and second pistons; and a second pressure source applied to the servo causing hydraulic pressure to vent from the servo, the pistons to detach mutually, and the servo to engage the park brake. | 05-29-2014 |
20100078271 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatic vehicle brakes, especially for commercial vehicles, includes in addition to a pneumatic locking mechanism, a manual release mechanism for manually releasing the spring brake section, and a device designed to visually recognize the manual release condition of the spring brake section outside of the housing. | 04-01-2010 |
20100078272 | Brake Cylinder for a Pneumatically Operable Vehicle Brake - A brake cylinder for a pneumatic vehicle brake, particularly for a commercial vehicle includes a spring-loaded brake section for performing parking brake operations by a spring-loaded spring, and a service brake section for performing compressed air-actuated service brake operations. The spring-loaded brake section and the service brake section are combined in a structural unit in a housing. The housing is divided by a piston into a pressure chamber to which compressed air can be applied and a further space. The pressure chamber serves the actuation of the service brake section in the pressure space and the spring-loaded spring of the spring-loaded section being disposed in the additional space on the opposite side of the piston. The spring-loaded spring acts on an additional spring-loaded piston in the space. The piston is lockable in relation to the piston by a pneumatically operable locking mechanism and releasable from the same by releasing the locking mechanism. The piston is further connected to a piston rod, either directly or indirectly or by additional elements, for actuating the vehicle brake. The brake cylinder is configured such that the compressed air supply to the locking mechanism occurs via a compressed air hose. | 04-01-2010 |
20100084228 | Compact Combination Brake Cylinder Comprising a Pneumatic Locking Mechanism - A brake cylinder for pneumatic vehicle brakes, especially for utility vehicles includes a spring brake section for carrying out parking brake actions by way of a brake spring, and a service brake section for carrying out pneumatic service brake actions. The spring brake section and the service brake section are combined in one housing as a structural unit. The housing is subdivided by a piston into two compartments, one compartment of the two being used as the pressure compartment for actuating the service brake section, and the brake spring of the spring section being arranged in the other compartment on the opposite end of the piston. The brake spring acts upon an additional spring piston in the compartment, which can be locked relative to the piston by a pneumatic locking mechanism and can be released therefrom by releasing the locking mechanism. The spring piston is connected to a piston rod directly or via additional elements to actuate the vehicle brake. Once the locking mechanism is released, the brake spring is effective between the two pistons and displaces them relative to each other during a parking brake action. The locking mechanism is configured as a pneumatic coupling. | 04-08-2010 |
20100084229 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatically actuated vehicle brakes, especially for commercial vehicles, includes a housing. The housing is divided into two chambers by a piston, one of the chambers being used as a pressure chamber for actuating an operating brake section, and a cylinder spring of a spring-loaded brake section being arranged in the other chamber on the opposite side of the piston. The cylinder spring acts on another spring-loaded piston in the chamber, which can be blocked in relation to the first piston by a pneumatically actuated locking mechanism. The other spring-loaded piston is released from the first piston by a releasing action of the blocking mechanism, and is connected to a piston rod for actuating the vehicle brake. Following release of the blocking mechanism, the cylinder spring acts between the two pistons and moves them in relation to each other during a parking braking operation. The brake cylinder includes a manually actuatable release device, in addition to the pneumatically actuable blocking mechanism, for manually releasing the spring-loaded brake section without impairing the function of the operating brake section. | 04-08-2010 |
20100252378 | Control Device for a Brake System of a Utility Vehicle and Method for Controlling a Brake System - A control device and a method for a brake system of a utility vehicle are provided. The brake system includes service brake cylinders and spring brake cylinders for braking the utility vehicle, an electronic control device, sensors for detecting the state of motion of the utility vehicle, a foot brake valve for actuating the service brake, a manual control unit, a module encompassing electrically controllable valves for an anti-blocking system, and a module encompassing electrically controllable valves for an electrically controlled parking brake. The electronic control device influences both the anti-lock system and the electrically controlled parking brake. | 10-07-2010 |
20100320039 | Brake Cylinder for Compressed Air Operated Vehicle Disc Brakes - A brake cylinder is provided for vehicle brakes, in particular for commercial vehicles brakes, that is equipped with a brake cylinder housing, in which a spring-loaded piston, a service brake piston, a spring-loaded spring and a piston return spring are arranged. The brake cylinder is simple to construct and extremely compact. The spring-loaded piston is in a primary chamber of the brake cylinder and is arranged between the service brake piston and a front side of the brake cylinder housing having the compressed air connections. | 12-23-2010 |
20110005874 | BRAKE SYSTEM FOR A VEHICLE AND BRAKE PEDAL DEVICE FOR SUCH A BRAKE SYSTEM - The invention relates to a braking system ( | 01-13-2011 |
20110042171 | Procedure for Actuating a Hydraulic Parking Brake - A procedure for actuating a parking brake is described, the parking brake comprising a brake piston which is received in a hydraulic chamber and is displaceable within the hydraulic chamber by means of a hydraulic actuator on the one hand and a mechanical actuator on the other. During operation of the parking brake the mechanical actuator is activated in a first step in order to displace the brake piston in the hydraulic chamber in such a way that a volume of a hydraulic fluid contained in the hydraulic chamber is increased. At a subsequent time the hydraulic actuator is activated in order to build up or increase a clamping force of the parking brake. The hydraulically generated or increased clamping force is then maintained by means of the mechanical actuator. | 02-24-2011 |
20110209953 | Combined Service Brake and Spring Brake Cylinder with Sealing Assemblies Consisting of a Guide Ring and at Least One Sealing Element - A combined service brake and spring brake cylinder for vehicle brake systems, includes a service brake piston and a spring brake piston. A sealing assembly is located in a central bore of a partition and seals off the interior of the service brake cylinder from the interior of the spring brake cylinder. The radial outer peripheral surface of the spring brake piston has an additional sealing assembly for sealing off a spring chamber. At least one of the sealing assemblies contains a guide ring that guides the spring brake piston rod in the bore of the partition, or the spring brake piston in the spring brake cylinder. The guide ring consists of a more rigid material than that of at least one sealing element. The sealing element consists of an elastomer that is connected to the guide ring by original forming methods such as injection molding or transfer molding. | 09-01-2011 |
20110297492 | Compact Combination Brake Cylinder Comprising a Pneumatic Locking Mechanism - A brake cylinder for pneumatic vehicle brakes, especially for utility vehicles includes a spring brake section for carrying out parking brake actions by way of a brake spring, and a service brake section for carrying out pneumatic service brake actions. The spring brake section and the service brake section are combined in one housing as a structural unit. The housing is subdivided by a piston into two compartments, one compartment of the two being used as the pressure compartment for actuating the service brake section, and the brake spring of the spring section being arranged in the other compartment on the opposite end of the piston. The brake spring acts upon an additional spring piston in the compartment, which can be locked relative to the piston by a pneumatic locking mechanism and can be released therefrom by releasing the locking mechanism. The spring piston is connected to a piston rod directly or via additional elements to actuate the vehicle brake. Once the locking mechanism is released, the brake spring is effective between the two pistons and displaces them relative to each other during a parking brake action. The locking mechanism is configured as a pneumatic coupling. | 12-08-2011 |
20120018262 | ELECTROMECHANICAL VEHICLE BRAKE - A combined electromechanical vehicle brake has a hydraulically activated operating brake and an electromechanically activated parking brake apparatus. A hydraulic operating pressure chamber in a brake housing is delimited by a brake piston that can be loaded by hydraulic pressure to carry out operating braking actions. The brake piston can be activated along a longitudinal piston axis to achieve a braking effect. The parking brake apparatus acts upon the brake piston by a gear unit because the gear unit converts the rotational movement of an electromechanical actuator into a translational movement, causing the brake piston to be activated to carry out parking brake processes and remain in the activated position. The gear unit has a threaded spindle and a threaded nut that contact one another via a plurality of rolling elements. A spring element allows the rolling elements to slip when the gear unit is activated in the unloaded state. | 01-26-2012 |
20130001027 | Method for operating a parking brake of a vehicle - A method for operating a parking brake of a vehicle, in particular of a motor vehicle, which parking brake operates in the superposition mode, the brake force of the parking brake being applicable by two different force-generating actuators mutually supporting one another in the superposition mode. It is provided that the force-generating, in particular pressure-generating, actuator is activated for support even before the superposition. | 01-03-2013 |
20130032437 | Internal Ventilation Diaphragm Piston Brake Actuator - This invention is related to the decrease of the breakdowns that occur in the actuators by means of the application of internal ventilation system to the diaphragm piston spring brake actuators which are used in vehicles such as truck, van, bus and trailer. The internally ventilated diaphragm-piston spring brake actuator that is developed by this invention is comprised by an aluminum piston, an aluminum pipe, a park chamber, a service chamber, a piston valve ( | 02-07-2013 |
20130048445 | WORKING VEHICLE - An operating system is formed in which an engagement shaft supported on an end portion of a brake piston is inserted through an engagement hole portion of a balance member; an operation wire is connected to the balance member via a coupling pin; and brake operating arms of rear wheel brake mechanisms are operated by a pair of arm portions of the balance member. A broad area is formed in the engagement hole portion in a manner allowing the balance member to swing about the coupling pin when the operation wire is pulled. | 02-28-2013 |
20130087419 | Pneumatic Wheel Brake for a Vehicle - The invention relates to a pneumatic wheel brake for a vehicle, wherein the wheel brake has at least one brake lever ( | 04-11-2013 |
20130146404 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatic vehicle brakes, especially for commercial vehicles, includes in addition to a pneumatic locking mechanism, a manual release mechanism for manually releasing the spring brake section, and a device designed to visually recognize the manual release condition of the spring brake section outside of the housing. | 06-13-2013 |
20130175124 | METHOD FOR OPERATING A MECHANICAL PARKING BRAKE - The invention relates to a method for operating a brake device, in particular of a motor vehicle, wherein the brake device comprises a service brake and a mechanical parking brake, wherein the parking brake can be actuated by means of a mechanical actuating element, comprising at least the steps of establishing that the actuating element has been moved from an idle position into a position of use, simultaneously controlling a pressure-increasing element, so that a hydraulic pressure is generated, which hydraulic pressure acts on a brake element that is common with the holding element, blocking the common brake element of the service brake and the parking brake with a mechanical block of the mechanical parking brake. | 07-11-2013 |
20130292216 | Pneumatic Brake Actuator with Flow Insensitive Two Way Control Valve - A pneumatic brake actuator has a spring brake actuator with spring and spring brake pressure chambers, and a service brake actuator with service brake pressure and pushrod chambers. A control valve has a seal that is moveable between an open position and a closed position for regulating fluid flow between the spring chamber and service brake pressure chamber. A first surface of the seal is in fluid communication with the service brake pressure chamber and a second surface of the seal is in fluid communication with a valve chamber that is not in fluid communication with the service brake pressure chamber or spring chamber. The seal moves between its open and closed positions based on a pressure in the service brake pressure chamber. Movement of the seal is not dependent on the rate of flow of fluid between the spring chamber and the service brake pressure chamber. | 11-07-2013 |
20150041260 | BRAKING SYSTEM WITH NON-SPRING PARKING BRAKE ACTUATOR - A braking system is provided that enables application and release of a parking brake with fluid control and that also maintains application of the brake during a loss of fluid pressure—all without using springs and using only a single fluid control conduit. The brake actuator for the system includes a housing defining service and parking chambers. A pushrod in the parking chamber is configured for movement with a diaphragm in the chamber. The parking brake is applied by introducing fluid on one side of the diaphragm. A clutch surrounds the pushrod and includes a tooth configured to engage corresponding teeth on the pushrod to hold the position of the pushrod even during a loss of fluid pressure. The clutch is rotated under fluid control to move the clutch tooth into and out of alignment with the teeth on the pushrod to hold and release the parking brake. | 02-12-2015 |
20150101897 | Spring Brake Cylinder Having Combined Inlet and Outlet Diaphragm Valve - A spring brake cylinder is provided for brake systems of vehicles. It includes a spring brake piston, which is arranged in a housing of the spring brake cylinder and can be actuated by at least one accumulator spring and separates a spring chamber containing the accumulator spring from a spring brake chamber of the spring brake cylinder that can be filled with air for release and can be vented of air for application. A circulation device is provided at least for venting the spring chamber directly into the atmosphere. The circulation device is configured as a diaphragm valve device having at least one elastically movable outlet diaphragm and at least one elastically movable inlet diaphragm. The inlet diaphragm and the outlet diaphragm are in a closed position in contact with an associated valve seat in the home position of the diaphragms and, when a pressure difference between the spring chamber and the atmosphere exceeding a minimum pressure value is present, the diaphragms are moved into an open position lifted from the valve seat in order to build up and reduce pressure in the spring chamber. | 04-16-2015 |
20150114770 | ELECTRO-HYDRAULIC ACTUATOR FOR BRAKE - An electro-hydraulic actuator ( | 04-30-2015 |
20150144440 | PNEUMATIC BRAKE ACTUATOR WITH FLOW INSENSITIVE TWO WAY CONTROL VALVE - A pneumatic brake actuator has a spring brake actuator with spring and spring brake pressure chambers, and a service brake actuator with service brake pressure and pushrod chambers. A control valve has a seal that is moveable between an open position and a closed position for regulating fluid flow between the spring chamber and service brake pressure chamber. A first surface of the seal is in fluid communication with the service brake pressure chamber and a second surface of the seal is in fluid communication with a valve chamber that is not in fluid communication with the service brake pressure chamber or spring chamber. The seal moves between its open and closed positions based on a pressure in the service brake pressure chamber. Movement of the seal is not dependent on the rate of flow of fluid between the spring chamber and the service brake pressure chamber. | 05-28-2015 |
20150345581 | PARKING BRAKE APPARATUS - A parking brake apparatus may include: a housing; a gear unit installed in the housing, and rotated by operation of a motor unit; a nut screw part connected to the gear unit, and rotated by the rotation of the gear unit; a bolt screw coupled the nut screw part so as to pass through the nut screw part, and moved in a longitudinal direction inside the nut screw part in connection with the rotation of the nut screw part; a cable connected to the bolt screw; a piston unit installed to be slidably moved in the housing, and having one side through which the cable passes and the other side which is extended toward the nut screw part; and an elastic member arranged between an inner wall of the housing and the piston unit, and elastically deformed as the piston is slidably moved. | 12-03-2015 |
20160186825 | COMBINED VEHICLE BRAKE WITH A BALL SCREW DRIVE - A combined vehicle brake which has a hydraulically actuable service brake and an electromechanically actuable parking brake device. The present invention is based on the problem of improving the known ball screw drives for use in vehicle brakes, of making simple automated assembly possible, and in addition of opening up the possibility to increase cycle times. A spring element of double helical type which is configured differently in sections is provided, in a middle section, that is to say in the drive thread turn, which substantially do not impede the elastically pliable adaption of the spring element to the helically wound drive thread turn, and wherein a bearing section is additionally provided at at least one end of the spring element, which bearing section has an increased transverse rigidity or has it impressed onto it in comparison with the middle section. | 06-30-2016 |
20160377137 | Motor Vehicle Brake Which Can Be Activated Electromechanically And Hydraulically And Has Optional Self-Locking - A motor vehicle brake, in particular a motor vehicle brake which can be activated in a combined fashion both hydraulically and electromechanically, having an actuator assembly comprising a housing, an actuator element which can be moved relative to the housing in order to move a brake lining hydraulically or electromechanically, a motor-operated drive, a movement mechanism arranged between the motor-operated drive and the movable actuator element, a gear arrangement assigned to the movement mechanism, and a separate self-locking device which is designed to block the movement mechanism when necessary and is integrated into the motor-operated drive. | 12-29-2016 |
20160377138 | SELECTIVELY SELF-LOCKING ELECTROMECHANICALLY AND HYDRAULICALLY ACTUATED MOTOR VEHICLE BRAKE - A motor vehicle brake, in particular a combined hydraulically and electromechanically actuated motor vehicle brake, comprising an actuator subassembly that includes: a brake housing, an actuation member, which is movable in relation to the brake housing, for hydraulically or electromechanically moving a brake lining, a motor-operated drive, a moving mechanism between the motor-operated drive and the movable actuation member, a gear train associated with the moving mechanism, and a separate self-locking device which is designed to block the moving mechanism as needed. The gear train includes at least two gear stages. The disclosed motor vehicle brake is characterized in that the self-locking device is arranged on the gear train in such a way that reactive forces of the self-locking device that occur during the self-locking action can be deflected into the brake housing via a force guiding member. | 12-29-2016 |
20100326778 | Brake pedal simulator and brake system - A brake pedal simulator for a brake system of a motor vehicle has a chamber with hydraulic fluid which is limited by a first piston coupled to a brake pedal, a second piston having restoring means for producing a restoring force, and a third piston driving a pressure transducer. The first and second pistons are functionally connected together by the hydraulic fluid when a first valve is open to transmit the restoring force to the first piston upon movement against the hydraulic fluid. This first functional connection is interrupted when the first valve is closed. The first and second pistons are functionally connected together by the hydraulic fluid when a second valve is open to transmit movement of the first piston to the third piston. This second functional connection is interrupted when the second valve is closed. | 12-30-2010 |
20110024242 | ELECTRO-HYDRAULIC BRAKE SYSTEM - Disclosed herein is an electro-hydraulic brake system. The electro-hydraulic brake system includes a master cylinder having a first cylinder and a second cylinder, a hydraulic power unit to supply brake oil into the respective first and second cylinders, and a first wheel and a second wheel connected respectively to the first cylinder and the second cylinder. The first wheel and the second wheel are independently controlled by hydraulic pressure generated in the first cylinder and the second cylinder. | 02-03-2011 |
20110073419 | Brake Controller - In a brake controller, a slope climbing vehicle stop detecting means determines when the vehicle is stopped while climbing a slope, and a pedal release detecting means determines that the pedal is released. An assist control unit interpolates a decrement in brake fluid pressure in the master cylinder due to an input piston movement caused by a release of a brake pedal. An assist piston is controlled by an electric motor to restore and maintain the fluid pressure within the master cylinder. | 03-31-2011 |
20110079471 | ELECTRIC BRAKING CIRCUIT PROVIDED WITH MEANS FOR CONTROLLING MEMBERS FOR BLOCKING THE PUSHERS OF ELECTROMECHANICAL ACTUATORS FITTED TO AN AIRCRAFT BRAKE - The invention relates to an aircraft braking circuit having brakes with electromechanical actuators for braking wheels located at the bottom end of at least one undercarriage. In accordance with the invention, a remote unit is located at the bottom of the undercarriage close to the actuators and connected to a certain number of said actuators, the remote unit receiving a power supply via a power supply cable going down along the undercarriage, and having as many controlled switches as connected actuators for selectively powering blocking members fitted to the connected actuators, the switches being controlled independently of one another by software parking orders generated by a control unit and passing via a single communications bus going down along the undercarriage to the remote unit. | 04-07-2011 |
20110108375 | BRAKE DEVICE FOR A MOTOR VEHICLE HAVING AT LEAST THREE BRAKE CIRCUITS - A brake device for motor vehicles has at least two hydraulic brake circuits which are directly connected to a master brake cylinder, as well as an additional brake circuit, which is able to be actuated via a control device, independently of the master brake cylinder. Because of the separate hydraulic brake circuits in the region of the front axle, redundancy is provided, while the third brake circuit, that is able to be actuated independently of the master brake cylinder and typically acts on the rear wheels, during automatic actuation, permits taking into account a braking effect by additional active assemblies, such as a driven generator. | 05-12-2011 |
20110132702 | METHOD FOR OPERATING A BRAKING SYSTEM OF A VEHICLE, BRAKING SYSTEM - A method for operating a braking system of a vehicle, particularly of a motor vehicle, is described in which an automatic braking process is triggered by the exceeding of a specifiable threshold value by a rate of change conditioned upon the operation of a brake pedal. It is provided, in this context, that the threshold value is specified/varied by the driver in an initialization operation of the braking system. Also described is a related braking system. | 06-09-2011 |
20110155521 | ASYMMETRICAL ELECTRIC BRAKING ARCHITECTURE FOR AIRCRAFT - The invention relates to an asymmetrical electric braking architecture for aircraft, comprising a certain number of electro-mechanical brake actuators (EBAs) for selectively applying a braking force on friction elements in order to slow down rotation of braked wheels, said architecture comprising:
| 06-30-2011 |
20110168504 | EMERGENCY BRAKING SYSTEM - An emergency automotive braking system in which a vehicle brake is movable between a braking position and a non braking position. An electrically powered actuator is mechanically coupled to the vehicle brake and, when energized, moves the vehicle brake from the non braking and to the braking position. A charging circuit electrically charges a capacitor bank. A collision avoidance system generates a trigger output signal upon detection of a potential vehicle collision to a control system which, in response to the trigger signal, electrically connects the capacitor bank to the actuator to energize the actuator. | 07-14-2011 |
20110233011 | VEHICLE BRAKE SYSTEM - A vehicle brake system has a plurality of hydraulic brake circuits via which wheel brake units are supplied with brake pressure. At least one wheel brake unit is connected to at least two brake circuits and supplied with brake pressure via these two brake circuits. | 09-29-2011 |
20110266100 | BRAKE SYSTEM AND VEHICLE COMPRISING SAID BRAKE SYSTEM - A brake system for a vehicle, in particular for a utility vehicle, having at least one wheel brake device on each of at least one front axle and at least one rear axle, the device including a service brake actuator and a spring-type brake actuator, it being possible to actuate the wheel brake device by a service brake actuation device and a parking brake actuation device. Also described is a vehicle having such a brake system. | 11-03-2011 |
20110272225 | AUTOMOTIVE VEHICLE BRAKING MANAGEMENT SYSTEM AND METHOD - A system for managing braking of an automotive vehicle including an assisted parking brake with at least one brake actuator capable of acting on at least one wheel of the vehicle and a mechanism applying the parking brake. The system includes a mechanism automatically increasing firmness with which the parking brake is applied after the vehicle engine stops, which includes a module that detects stopping of the engine and a module that commands an increase in the firmness of application. The module is configured to emit a signal characteristic of the stopping of the engine as a function of a status of the engine and of a status of an electrical supply. The module is configured to emit a signal demanding an increase in the firmness of application as a function of a status of the brake actuators and of signal characteristic of the stopping of the engine that comes from the module. | 11-10-2011 |
20110278113 | BRAKE DEVICE - To make a brake device generate a required braking force, a hydraulic control section switches, according to the relative magnitude between the required braking force and a braking force exerted by braking operation, between drive of a pump motor and non-drive of the pump motor and a master cut valve reduces the flow of brake fluid in the direction to a master cylinder. By this, a wheel cylinder maintains hydraulic pressure capable of generating the required braking force. As a result, the pump motor is not necessarily always driven when the required braking force is generated, and the operating time period of the pump motor is reduced. As a result, a load on the pump motor is reduced to enhance durability of the pump motor. | 11-17-2011 |
20110290600 | CALIPER BODY FOR DISC BRAKE FOR VEHICLE - [Object] There is provided a caliper body for a two system-type disc brake for a vehicle, which is reduced in size and has an improved air bleeding property by employing a simple structure. | 12-01-2011 |
20110303497 | METHOD AND SYSTEM FOR CONTROLLING VEHICLE BRAKING - Methods and systems for controlling braking in a vehicle are provided, for example in a vehicle in which regenerative braking is provided using a motor capable of providing regenerative braking on one axle or wheel that does not have a friction brake component. If it is determined that the energy storage system of the vehicle cannot accept additional electrical energy created by the regenerative braking, the electrical energy is transferred to another location such as a motor on another axle or wheel, resulting in a propulsion torque on that axle. In order to maintain the total desired braking consistent with the driver command, friction braking is provided on the axle the regenerative braking energy is transferred to using a friction braking component, based in part upon the amount of propulsion torque, when the energy storage system cannot accept additional electrical energy. | 12-15-2011 |
20110303498 | VEHICLE AND METHOD FOR CONTROLLING REGENERATIVE BRAKING - A vehicle and a method for controlling regenerative braking may utilize the maximum available regenerative braking torque for some time during a braking event. As the vehicle speed and/or powertrain torque decreases, the regenerative braking torque is controlled to deviate from the maximum. The point at which the regenerative braking torque deviates from the maximum is chosen based on the level of vehicle deceleration. The regenerative braking torque is then smoothly blended out until it reaches zero. The regenerative braking torque is brought to zero when the vehicle speed is very low, thereby eliminating the inefficiencies associated with operating a motor at a very low speed. | 12-15-2011 |
20120000738 | BRAKING DEVICE - Under a normal condition, brake fluid pressure generated by a slave cylinder ( | 01-05-2012 |
20120006634 | Actuating Device and Method for Actuating Such an Actuating Device - The invention relates to an actuating device for a parking brake of a vehicle, in particular a commercial vehicle, wherein the actuating device comprises an operating brake for driving operation and the parking brake for securing the vehicle. A first braking effect can be generated by means of the parking brake for the vehicle independently of a braking procedure for the operating brake. The actuating device comprises a first switched state, wherein the first braking effect of the parking brake cannot be provided, and comprises a second switched state, wherein the first, in particular full, braking effect and the parking brake can be provided. The actuating device further comprises a manually actuatable operating element ( | 01-12-2012 |
20120055744 | HYBRID BRAKE CONTROL - A method to control a vehicle including control of regenerative brakes and friction brakes includes monitoring a desired corner force and moment distribution, monitoring real-time actuator constraints including a braking torque limit of each of the regenerative brake, determining a regenerative braking torque for each of the regenerative brakes based upon the desired corner force and moment distribution and the real-time actuator constraints, determining a friction braking torque for each of the friction brakes based upon the desired corner force and moment distribution and the determined regenerative braking torque for each of the regenerative brakes, and controlling the vehicle based upon the determined regenerative braking torques and the determined friction braking torques. | 03-08-2012 |
20120061192 | Brake system for a vehicle - A brake system for a vehicle includes a main brake cylinder which has a first chamber which is hydraulically connected to at least one wheel brake cylinder for braking a wheel of the vehicle; an activating device for the driver to mechanically act on a piston of the main brake cylinder in order to pressurize hydraulic fluid in the first chamber of the main brake cylinder; and a pressure generating device which is hydraulically connected to the first chamber of the main brake cylinder, and which for activating the wheel brake cylinder supplies the wheel brake cylinder with hydraulic fluid through the first chamber of the main brake cylinder. | 03-15-2012 |
20120061193 | Braking system for a vehicle - A braking system for a vehicle includes a brake assembly, a pedal simulator and a branching device for transmitting the pedal travel of the brake pedal between the brake assembly and the pedal simulator, the branching device having a transmission and distribution linkage in a distribution housing, which is to be operated by the brake pedal. The transmission and distribution linkage includes an adjusting spindle, which is fixedly mounted in the housing and runs transversely to the adjustment direction, and at least one transmission rod supported on the adjusting spindle and held adjustably in the axial direction of the adjusting spindle as well as transversely to the axial direction. | 03-15-2012 |
20120160619 | FLUID-PRESSURE BRAKE SYSTEM - A hydraulic brake system includes a braking state switching device which selectively realizes: a high-pressure-source-pressure dependent braking state in which a brake force is generated with a magnitude that depends on a pressure of brake fluid supplied from a high-pressure-source device; and an operation-force/high-pressure-source-pressure dependent braking state in which a brake force can be generated with a magnitude that depends on both of the pressure of the brake fluid supplied from the high-pressure-source device and a brake operation force of a driver which is applied to a brake operating member and that is larger than the magnitude of a brake force which can be generated in the high-pressure-source-pressure dependent braking state. The brake system may be equipped with a high-pressure-source device having a relatively small capacity, thereby allowing the high-pressure-source device to be compact and low-cost. | 06-28-2012 |
20120168265 | Hydraulic Accumulator System and Method for Operating a Hydraulic Accumulator System - A method and a device are disclosed which, as part of an overall brake system i.e. a brake system consisting of a conventional part and a further, for example recuperative part, can cause volume displacements in a brake circuit or in a piston-cylinder unit on a brake pedal. This is used in order to compensate for a change in the pressure conditions through the controllable servobrake in the hydraulic part of the brake system owing to an additional braking action of the further part of the brake system and thereby to blend braking actions of different brake systems to form an overall braking action without the driver realizing this at the brake pedal by changing the position of the pedal. The method can be used, for example, in vehicles in which a braking deceleration is caused by operating an electric machine as a generator to produce current and which additionally have a conventional, hydraulic brake system as a further brake system or backup brake system. | 07-05-2012 |
20120205202 | METHOD FOR SETTING THE CLAMPING FORCE OF A HYDRAULICALLY SUPPORTED ELECTRIC MOTOR-DRIVEN PARKING BRAKE - A method for setting the clamping force acting on a wheel brake, a part of the clamping force being provided using an electromechanical brake device and simultaneously another part of the clamping force being provided using a hydraulic brake device. During an application procedure, the power consumption of the electric motor-driven brake device is regulated to an essentially constant value in an operating phase (phase 4), in which both brake devices simultaneously exert force, so as to set the clamping force of the parking brake very precisely. | 08-16-2012 |
20130056315 | METHOD FOR SETTING THE CLAMPING FORCE EXERTED BY A PARKING BRAKE IN A VEHICLE - In a method for setting the clamping force exerted by a parking brake, for the case in which after the conclusion of a clamping process an event occurs that disturbs the stationary situation of the vehicle, a subsequent clamping process is carried out by actuating an electric brake motor and an additional brake device. | 03-07-2013 |
20130112513 | SYSTEM AND METHOD FOR CONTROLLING AN ELECTRONIC BRAKE - A system for controlling an electronically actuated brake is described. The system includes a plurality of brakes controlled by an electronic brake control unit, a brake pedal, momentary switch contact, and a latching relay. When the brake pedal is deflected beyond a threshold and the momentary switch contact are engaged the electronic brake control unit will communicate to the brakes to change their state between on and off. The present state is saved in the latching relay even when power is removed from the system. | 05-09-2013 |
20140041973 | Secondary Parking Apparatus for a Heavy Vehicle - A secondary parking apparatus is provided for a vehicle having components of a parking brake system, components of an anti-lock brake system (ABS). and a manually-operable device. The secondary parking apparatus comprises an electronic controller arranged to (i) monitor the manually-operable device to detect an operator intent signal to apply parking brakes of the parking brake system, (ii) receive a combination of one or more signals indicative of a fault condition of the vehicle, and (iii) provide one or more control signals to be applied to components of the ABS to selectively exhaust air pressure from components of the ABS to atmosphere so that parking brakes of the parking brake system are applied to park the vehicle when both the operator intent signal and the combination of one or more signals indicative of a fault condition of the vehicle are detected. | 02-13-2014 |
20140144732 | Pedal Travel Simulator, Actuating Unit for a Hydraulic Brake System and Brake System - The invention relates to a pedal travel simulator for the hydraulic connection to a pressure chamber of a master brake cylinder of a hydraulic brake system, in particular for motor vehicles, having a housing and a simulator piston that is diplaceably mounted in the housing, wherein the simulator piston delimits a first hydraulic simulator chamber together with the housing, which simulator chamber can accommodate pressurizing media. Wherein an elastic restoring means acts on the simulator piston, wherein the pedal travel simulator includes a second hydraulic simulator chamber for accommodating pressurizing media, the simulator chamber being delimited by an elastically deformable membrane. The invention further relates to an actuating unit for a hydraulic motor vehicle brake system of the brake-by-wire type, and to a hydraulic motor vehicle brake system. | 05-29-2014 |
20140202801 | Method for Hydraulically Boosting an Electric Parking Brake of a Vehicle - A method for hydraulically boosting a vehicle electric parking brake having a hydraulic service brake and an electric parking brake. Application forces electically generated by the parking brake function is superimposed on the boosting brake force generated by a hydraulic boosting brake pressure provided by the service brake to the brake actuator. When the parking brake is actuated to generate a predetermined application force, the force generated by the brake actuator is detected as the actual value, if an actual value of the measured value is smaller than a first target value a boosting brake pressure value is applied to the brake actuator, and by means of the parking brake function an adjustment function for the tension of the brake actuator to which the hydraulic boosting brake pressure is applied is carried out to achieve the predetermined application force. | 07-24-2014 |
20140345986 | METHOD FOR SETTING A HYDRAULIC VEHICLE BRAKE - A method for operating a vehicle brake having a brake servo unit and a parking brake actuator. In the case of a failure of the brake servo unit, the distance between brake linings of the vehicle brake and brake disk is reduced by actuating the parking brake actuator. | 11-27-2014 |
20160201746 | Parking Brake | 07-14-2016 |
188107000 | Railway | 5 |
20110031073 | MODULAR BRAKE DEVICE - A brake system for a rail-guided tractive vehicle includes electronic, pneumatic, and mechanical components, as well as vehicle interfaces for connecting the brake system to the tractive vehicle. The invention provides a brake system that can be adapted easily and economically to different requirements of the customers, and in particular to different locomotives. For that purpose, the components are housed in modules respectively having predetermined spatial measurements and each module has at least one predetermined electric or pneumatic vehicle interface, with respect to their spatial position within the module and also with respect to their operational variables. | 02-10-2011 |
20110266101 | PARKING BRAKE ASSEMBLY FOR RAILWAY VEHICLE BRAKE SYSTEM - A parking brake assembly for a railway car includes a ratchet mounted for rotation on a threaded piston rod of a brake actuator and a holding pawl engageable with the ratchet for maintaining a push rod of the parking brake assembly to apply braking force when the air pressure is lost in the brake pipe and releasing the push rod to accordingly release the braking force when the supply of air pressure in the brake pipe is restored. An operating lever and a cylinder connected thereto are provided for selectively rotating the holding pawl. Valve is provided for supplying air pressure to and evacuating it from the cylinder. Release mechanism is provided for manually releasing the braking force. The parking brake assembly is employed with either truck-mounted or carbody-mounted braking system. | 11-03-2011 |
20140262640 | Parking Brake Reset Mechanism for Railway Vehicles - A parking brake reset system for a railway vehicle, such as a transit vehicle, includes a brake operating unit fluidly connected to a main air reservoir and controlling air flow to a brake cylinder of the railway vehicle, a brake pipe, a parking brake, and a control valve in line between the brake pipe and the parking brake to establish fluid communication between the brake pipe and the parking brake. The control valve is in line between the brake operating unit and the parking brake, whereby the control valve controls air flow to the parking brake from the main air reservoir and the brake pipe. The control valve may be a double check valve or a 3-way cutout valve, as examples. | 09-18-2014 |
20140332328 | RAILROAD CAR HAND BRAKE RELEASE SYSTEM - An automatic hand brake system for a railcar including a release mechanism operatively connected between an actuator and the spool gear that is turned by hand to set the hand brake. The actuator is operatively connected to a pressured fluid system. When a threshold pressure is reached the actuator operates the release mechanism to release the spool gear so that the brakes are released. When there is a pressure drop, an automatic reset apparatus resets the release mechanism so that the hand brake can set. In one aspect, the pressurized fluid system such is an air brake system. In another aspect, the pressurized fluid system is oil or hydraulic system or a combination of air and oil. An apparatus can be employed to permit release of the hand brake if desired. | 11-13-2014 |
20140345987 | SPRING BRAKE CYLINDER WITH EMERGENCY RELEASE DEVICE - A spring brake cylinder having a housing in which a spring store piston which is loaded by at least one spring store spring and which has a piston rod is axially movable, and having an emergency release device with an emergency release actuation device, an emergency release mechanism with a toothed wheel for interrupting the force flow between the spring store piston and piston rod, and a holding device designed for holding the emergency release device in various holding positions, wherein the holding device has a pawl, and the emergency release actuation device has at least one actuation element and a driver for driving the pawl. | 11-27-2014 |
188106000 | Fluid and mechanical | 26 |
20080236961 | VEHICLE-USE DISC BRAKE - A disc brake in which three pistons are arranged respectively on both sides of a brake disc to miniaturize the disc brake and to enhance the merchantability of a motorcycle by simplifying the appearance shape of the disc brake. A first oil passage provides a communication with first and second oil pressure chambers respectively facing back surfaces of the first and second pistons. A second oil passage provides a communication with third, fourth, fifth and sixth oil pressure chambers respectively facing back surfaces of the third to sixth pistons. The first and second oil passages are formed inside of a caliper body. | 10-02-2008 |
20100206673 | BRAKE SYSTEM FOR A MOTOR VEHICLE - A brake system for a motor vehicle which simplifies the hydraulic design and avoids a vacuum prevailing over a relatively long period of time. The first hydraulic unit has a suction volume, which is connected to the suction side of the pump and which, in the event of a change in the pressure on the suction side of the pump, provides a pressure and volume equalization by means of the brake fluid stored in the suction volume, with an elastic element. | 08-19-2010 |
20100236879 | METHOD FOR RELEASING A PARKING BRAKE OF A MOTOR VEHICLE - In the method a drive tool ( | 09-23-2010 |
20110100769 | ARCHITECTURE FOR AN ELECTROMECHANICAL BRAKING SYSTEM - The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels, each of the wheels being fitted with brakes, each having a certain number of electromechanical braking actuators, the architecture including controllers for delivering power signals to the actuators in response to a braking order, the wheels on each of the undercarriages being grouped together in first and second complementary groups such that for each group of wheels, a first group of actuators is controlled by one controller that controls those actuators only, and a complementary second group of actuators is controlled by another controller that controls only those actuators. | 05-05-2011 |
20110100770 | POWER SUPPLY ARCHITECTURE FOR AIRCRAFT BRAKES FITTED WITH ELECTROMECHANICAL ACTUATORS - The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels (L | 05-05-2011 |
20110297493 | BRAKE BOOSTER - The invention relates to an electromechanical brake booster having a piston rod to be actuated using muscular power, and an electromechanical actuator. Muscular power acting upon the pedal rod is transmitted via an elastic transmission element, for example a spring element, and the actuator power is transmitted separately thereof via its proper elastic transmission element which has for example a number of spring elements and dampers arranged in parallel thereto. The controllable brake booster is operated depending on a variable representing the relative deviation of the booster body and the input element. The brake booster according to the invention allows the adjustment of a booster characteristic which is variable in a wide range and which inter alia can depend on an actuation path, an actuation speed and/or an actuation acceleration. The switch-over to different modes, for example a sports mode, is also possible. | 12-08-2011 |
20120090928 | METHOD FOR OPERATING A BRAKING SYSTEM, BRAKING SYSTEM AND MOTOR VEHICLE HAVING A BRKAING SYSTEM - A method for operating a braking system in a motor vehicle having at least two wheel brakes ( | 04-19-2012 |
20140034432 | ELECTRIC BRAKE ACTUATOR FOR VEHICLES - An electric brake actuator configured to be operatively connected to a vehicle brake to operate the vehicle brake includes two electric motors each having an output shaft rotated by operation of the respective motor; an actuator output connectable to the vehicle brake, and a differential operatively connected to the actuator output and to both the output shaft of the first electric motor and the output shaft of the second electric motor to transfer the first and second driving forces to the actuator output by way of the differential. | 02-06-2014 |
20140144733 | SHIFT-BY-WIRE SYSTEM FOR ACTUATING A VEHICLE PARK BRAKE - A vehicle park-brake system includes a park brake, a solenoid; a first pressure source; a servo for disengaging the park-brake using the first pressure source, and for disengaging the park-brake using a force produced by the solenoid that actuates first and second pistons; and a second pressure source applied to the servo causing hydraulic pressure to vent from the servo, the pistons to detach mutually, and the servo to engage the park brake. | 05-29-2014 |
20100078271 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatic vehicle brakes, especially for commercial vehicles, includes in addition to a pneumatic locking mechanism, a manual release mechanism for manually releasing the spring brake section, and a device designed to visually recognize the manual release condition of the spring brake section outside of the housing. | 04-01-2010 |
20100078272 | Brake Cylinder for a Pneumatically Operable Vehicle Brake - A brake cylinder for a pneumatic vehicle brake, particularly for a commercial vehicle includes a spring-loaded brake section for performing parking brake operations by a spring-loaded spring, and a service brake section for performing compressed air-actuated service brake operations. The spring-loaded brake section and the service brake section are combined in a structural unit in a housing. The housing is divided by a piston into a pressure chamber to which compressed air can be applied and a further space. The pressure chamber serves the actuation of the service brake section in the pressure space and the spring-loaded spring of the spring-loaded section being disposed in the additional space on the opposite side of the piston. The spring-loaded spring acts on an additional spring-loaded piston in the space. The piston is lockable in relation to the piston by a pneumatically operable locking mechanism and releasable from the same by releasing the locking mechanism. The piston is further connected to a piston rod, either directly or indirectly or by additional elements, for actuating the vehicle brake. The brake cylinder is configured such that the compressed air supply to the locking mechanism occurs via a compressed air hose. | 04-01-2010 |
20100084228 | Compact Combination Brake Cylinder Comprising a Pneumatic Locking Mechanism - A brake cylinder for pneumatic vehicle brakes, especially for utility vehicles includes a spring brake section for carrying out parking brake actions by way of a brake spring, and a service brake section for carrying out pneumatic service brake actions. The spring brake section and the service brake section are combined in one housing as a structural unit. The housing is subdivided by a piston into two compartments, one compartment of the two being used as the pressure compartment for actuating the service brake section, and the brake spring of the spring section being arranged in the other compartment on the opposite end of the piston. The brake spring acts upon an additional spring piston in the compartment, which can be locked relative to the piston by a pneumatic locking mechanism and can be released therefrom by releasing the locking mechanism. The spring piston is connected to a piston rod directly or via additional elements to actuate the vehicle brake. Once the locking mechanism is released, the brake spring is effective between the two pistons and displaces them relative to each other during a parking brake action. The locking mechanism is configured as a pneumatic coupling. | 04-08-2010 |
20100084229 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatically actuated vehicle brakes, especially for commercial vehicles, includes a housing. The housing is divided into two chambers by a piston, one of the chambers being used as a pressure chamber for actuating an operating brake section, and a cylinder spring of a spring-loaded brake section being arranged in the other chamber on the opposite side of the piston. The cylinder spring acts on another spring-loaded piston in the chamber, which can be blocked in relation to the first piston by a pneumatically actuated locking mechanism. The other spring-loaded piston is released from the first piston by a releasing action of the blocking mechanism, and is connected to a piston rod for actuating the vehicle brake. Following release of the blocking mechanism, the cylinder spring acts between the two pistons and moves them in relation to each other during a parking braking operation. The brake cylinder includes a manually actuatable release device, in addition to the pneumatically actuable blocking mechanism, for manually releasing the spring-loaded brake section without impairing the function of the operating brake section. | 04-08-2010 |
20100252378 | Control Device for a Brake System of a Utility Vehicle and Method for Controlling a Brake System - A control device and a method for a brake system of a utility vehicle are provided. The brake system includes service brake cylinders and spring brake cylinders for braking the utility vehicle, an electronic control device, sensors for detecting the state of motion of the utility vehicle, a foot brake valve for actuating the service brake, a manual control unit, a module encompassing electrically controllable valves for an anti-blocking system, and a module encompassing electrically controllable valves for an electrically controlled parking brake. The electronic control device influences both the anti-lock system and the electrically controlled parking brake. | 10-07-2010 |
20100320039 | Brake Cylinder for Compressed Air Operated Vehicle Disc Brakes - A brake cylinder is provided for vehicle brakes, in particular for commercial vehicles brakes, that is equipped with a brake cylinder housing, in which a spring-loaded piston, a service brake piston, a spring-loaded spring and a piston return spring are arranged. The brake cylinder is simple to construct and extremely compact. The spring-loaded piston is in a primary chamber of the brake cylinder and is arranged between the service brake piston and a front side of the brake cylinder housing having the compressed air connections. | 12-23-2010 |
20110005874 | BRAKE SYSTEM FOR A VEHICLE AND BRAKE PEDAL DEVICE FOR SUCH A BRAKE SYSTEM - The invention relates to a braking system ( | 01-13-2011 |
20110042171 | Procedure for Actuating a Hydraulic Parking Brake - A procedure for actuating a parking brake is described, the parking brake comprising a brake piston which is received in a hydraulic chamber and is displaceable within the hydraulic chamber by means of a hydraulic actuator on the one hand and a mechanical actuator on the other. During operation of the parking brake the mechanical actuator is activated in a first step in order to displace the brake piston in the hydraulic chamber in such a way that a volume of a hydraulic fluid contained in the hydraulic chamber is increased. At a subsequent time the hydraulic actuator is activated in order to build up or increase a clamping force of the parking brake. The hydraulically generated or increased clamping force is then maintained by means of the mechanical actuator. | 02-24-2011 |
20110209953 | Combined Service Brake and Spring Brake Cylinder with Sealing Assemblies Consisting of a Guide Ring and at Least One Sealing Element - A combined service brake and spring brake cylinder for vehicle brake systems, includes a service brake piston and a spring brake piston. A sealing assembly is located in a central bore of a partition and seals off the interior of the service brake cylinder from the interior of the spring brake cylinder. The radial outer peripheral surface of the spring brake piston has an additional sealing assembly for sealing off a spring chamber. At least one of the sealing assemblies contains a guide ring that guides the spring brake piston rod in the bore of the partition, or the spring brake piston in the spring brake cylinder. The guide ring consists of a more rigid material than that of at least one sealing element. The sealing element consists of an elastomer that is connected to the guide ring by original forming methods such as injection molding or transfer molding. | 09-01-2011 |
20110297492 | Compact Combination Brake Cylinder Comprising a Pneumatic Locking Mechanism - A brake cylinder for pneumatic vehicle brakes, especially for utility vehicles includes a spring brake section for carrying out parking brake actions by way of a brake spring, and a service brake section for carrying out pneumatic service brake actions. The spring brake section and the service brake section are combined in one housing as a structural unit. The housing is subdivided by a piston into two compartments, one compartment of the two being used as the pressure compartment for actuating the service brake section, and the brake spring of the spring section being arranged in the other compartment on the opposite end of the piston. The brake spring acts upon an additional spring piston in the compartment, which can be locked relative to the piston by a pneumatic locking mechanism and can be released therefrom by releasing the locking mechanism. The spring piston is connected to a piston rod directly or via additional elements to actuate the vehicle brake. Once the locking mechanism is released, the brake spring is effective between the two pistons and displaces them relative to each other during a parking brake action. The locking mechanism is configured as a pneumatic coupling. | 12-08-2011 |
20120018262 | ELECTROMECHANICAL VEHICLE BRAKE - A combined electromechanical vehicle brake has a hydraulically activated operating brake and an electromechanically activated parking brake apparatus. A hydraulic operating pressure chamber in a brake housing is delimited by a brake piston that can be loaded by hydraulic pressure to carry out operating braking actions. The brake piston can be activated along a longitudinal piston axis to achieve a braking effect. The parking brake apparatus acts upon the brake piston by a gear unit because the gear unit converts the rotational movement of an electromechanical actuator into a translational movement, causing the brake piston to be activated to carry out parking brake processes and remain in the activated position. The gear unit has a threaded spindle and a threaded nut that contact one another via a plurality of rolling elements. A spring element allows the rolling elements to slip when the gear unit is activated in the unloaded state. | 01-26-2012 |
20130001027 | Method for operating a parking brake of a vehicle - A method for operating a parking brake of a vehicle, in particular of a motor vehicle, which parking brake operates in the superposition mode, the brake force of the parking brake being applicable by two different force-generating actuators mutually supporting one another in the superposition mode. It is provided that the force-generating, in particular pressure-generating, actuator is activated for support even before the superposition. | 01-03-2013 |
20130032437 | Internal Ventilation Diaphragm Piston Brake Actuator - This invention is related to the decrease of the breakdowns that occur in the actuators by means of the application of internal ventilation system to the diaphragm piston spring brake actuators which are used in vehicles such as truck, van, bus and trailer. The internally ventilated diaphragm-piston spring brake actuator that is developed by this invention is comprised by an aluminum piston, an aluminum pipe, a park chamber, a service chamber, a piston valve ( | 02-07-2013 |
20130048445 | WORKING VEHICLE - An operating system is formed in which an engagement shaft supported on an end portion of a brake piston is inserted through an engagement hole portion of a balance member; an operation wire is connected to the balance member via a coupling pin; and brake operating arms of rear wheel brake mechanisms are operated by a pair of arm portions of the balance member. A broad area is formed in the engagement hole portion in a manner allowing the balance member to swing about the coupling pin when the operation wire is pulled. | 02-28-2013 |
20130087419 | Pneumatic Wheel Brake for a Vehicle - The invention relates to a pneumatic wheel brake for a vehicle, wherein the wheel brake has at least one brake lever ( | 04-11-2013 |
20130146404 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatic vehicle brakes, especially for commercial vehicles, includes in addition to a pneumatic locking mechanism, a manual release mechanism for manually releasing the spring brake section, and a device designed to visually recognize the manual release condition of the spring brake section outside of the housing. | 06-13-2013 |
20130175124 | METHOD FOR OPERATING A MECHANICAL PARKING BRAKE - The invention relates to a method for operating a brake device, in particular of a motor vehicle, wherein the brake device comprises a service brake and a mechanical parking brake, wherein the parking brake can be actuated by means of a mechanical actuating element, comprising at least the steps of establishing that the actuating element has been moved from an idle position into a position of use, simultaneously controlling a pressure-increasing element, so that a hydraulic pressure is generated, which hydraulic pressure acts on a brake element that is common with the holding element, blocking the common brake element of the service brake and the parking brake with a mechanical block of the mechanical parking brake. | 07-11-2013 |
20130292216 | Pneumatic Brake Actuator with Flow Insensitive Two Way Control Valve - A pneumatic brake actuator has a spring brake actuator with spring and spring brake pressure chambers, and a service brake actuator with service brake pressure and pushrod chambers. A control valve has a seal that is moveable between an open position and a closed position for regulating fluid flow between the spring chamber and service brake pressure chamber. A first surface of the seal is in fluid communication with the service brake pressure chamber and a second surface of the seal is in fluid communication with a valve chamber that is not in fluid communication with the service brake pressure chamber or spring chamber. The seal moves between its open and closed positions based on a pressure in the service brake pressure chamber. Movement of the seal is not dependent on the rate of flow of fluid between the spring chamber and the service brake pressure chamber. | 11-07-2013 |
20150041260 | BRAKING SYSTEM WITH NON-SPRING PARKING BRAKE ACTUATOR - A braking system is provided that enables application and release of a parking brake with fluid control and that also maintains application of the brake during a loss of fluid pressure—all without using springs and using only a single fluid control conduit. The brake actuator for the system includes a housing defining service and parking chambers. A pushrod in the parking chamber is configured for movement with a diaphragm in the chamber. The parking brake is applied by introducing fluid on one side of the diaphragm. A clutch surrounds the pushrod and includes a tooth configured to engage corresponding teeth on the pushrod to hold the position of the pushrod even during a loss of fluid pressure. The clutch is rotated under fluid control to move the clutch tooth into and out of alignment with the teeth on the pushrod to hold and release the parking brake. | 02-12-2015 |
20150101897 | Spring Brake Cylinder Having Combined Inlet and Outlet Diaphragm Valve - A spring brake cylinder is provided for brake systems of vehicles. It includes a spring brake piston, which is arranged in a housing of the spring brake cylinder and can be actuated by at least one accumulator spring and separates a spring chamber containing the accumulator spring from a spring brake chamber of the spring brake cylinder that can be filled with air for release and can be vented of air for application. A circulation device is provided at least for venting the spring chamber directly into the atmosphere. The circulation device is configured as a diaphragm valve device having at least one elastically movable outlet diaphragm and at least one elastically movable inlet diaphragm. The inlet diaphragm and the outlet diaphragm are in a closed position in contact with an associated valve seat in the home position of the diaphragms and, when a pressure difference between the spring chamber and the atmosphere exceeding a minimum pressure value is present, the diaphragms are moved into an open position lifted from the valve seat in order to build up and reduce pressure in the spring chamber. | 04-16-2015 |
20150114770 | ELECTRO-HYDRAULIC ACTUATOR FOR BRAKE - An electro-hydraulic actuator ( | 04-30-2015 |
20150144440 | PNEUMATIC BRAKE ACTUATOR WITH FLOW INSENSITIVE TWO WAY CONTROL VALVE - A pneumatic brake actuator has a spring brake actuator with spring and spring brake pressure chambers, and a service brake actuator with service brake pressure and pushrod chambers. A control valve has a seal that is moveable between an open position and a closed position for regulating fluid flow between the spring chamber and service brake pressure chamber. A first surface of the seal is in fluid communication with the service brake pressure chamber and a second surface of the seal is in fluid communication with a valve chamber that is not in fluid communication with the service brake pressure chamber or spring chamber. The seal moves between its open and closed positions based on a pressure in the service brake pressure chamber. Movement of the seal is not dependent on the rate of flow of fluid between the spring chamber and the service brake pressure chamber. | 05-28-2015 |
20150345581 | PARKING BRAKE APPARATUS - A parking brake apparatus may include: a housing; a gear unit installed in the housing, and rotated by operation of a motor unit; a nut screw part connected to the gear unit, and rotated by the rotation of the gear unit; a bolt screw coupled the nut screw part so as to pass through the nut screw part, and moved in a longitudinal direction inside the nut screw part in connection with the rotation of the nut screw part; a cable connected to the bolt screw; a piston unit installed to be slidably moved in the housing, and having one side through which the cable passes and the other side which is extended toward the nut screw part; and an elastic member arranged between an inner wall of the housing and the piston unit, and elastically deformed as the piston is slidably moved. | 12-03-2015 |
20160186825 | COMBINED VEHICLE BRAKE WITH A BALL SCREW DRIVE - A combined vehicle brake which has a hydraulically actuable service brake and an electromechanically actuable parking brake device. The present invention is based on the problem of improving the known ball screw drives for use in vehicle brakes, of making simple automated assembly possible, and in addition of opening up the possibility to increase cycle times. A spring element of double helical type which is configured differently in sections is provided, in a middle section, that is to say in the drive thread turn, which substantially do not impede the elastically pliable adaption of the spring element to the helically wound drive thread turn, and wherein a bearing section is additionally provided at at least one end of the spring element, which bearing section has an increased transverse rigidity or has it impressed onto it in comparison with the middle section. | 06-30-2016 |
20160377137 | Motor Vehicle Brake Which Can Be Activated Electromechanically And Hydraulically And Has Optional Self-Locking - A motor vehicle brake, in particular a motor vehicle brake which can be activated in a combined fashion both hydraulically and electromechanically, having an actuator assembly comprising a housing, an actuator element which can be moved relative to the housing in order to move a brake lining hydraulically or electromechanically, a motor-operated drive, a movement mechanism arranged between the motor-operated drive and the movable actuator element, a gear arrangement assigned to the movement mechanism, and a separate self-locking device which is designed to block the movement mechanism when necessary and is integrated into the motor-operated drive. | 12-29-2016 |
20160377138 | SELECTIVELY SELF-LOCKING ELECTROMECHANICALLY AND HYDRAULICALLY ACTUATED MOTOR VEHICLE BRAKE - A motor vehicle brake, in particular a combined hydraulically and electromechanically actuated motor vehicle brake, comprising an actuator subassembly that includes: a brake housing, an actuation member, which is movable in relation to the brake housing, for hydraulically or electromechanically moving a brake lining, a motor-operated drive, a moving mechanism between the motor-operated drive and the movable actuation member, a gear train associated with the moving mechanism, and a separate self-locking device which is designed to block the moving mechanism as needed. The gear train includes at least two gear stages. The disclosed motor vehicle brake is characterized in that the self-locking device is arranged on the gear train in such a way that reactive forces of the self-locking device that occur during the self-locking action can be deflected into the brake housing via a force guiding member. | 12-29-2016 |
20100326778 | Brake pedal simulator and brake system - A brake pedal simulator for a brake system of a motor vehicle has a chamber with hydraulic fluid which is limited by a first piston coupled to a brake pedal, a second piston having restoring means for producing a restoring force, and a third piston driving a pressure transducer. The first and second pistons are functionally connected together by the hydraulic fluid when a first valve is open to transmit the restoring force to the first piston upon movement against the hydraulic fluid. This first functional connection is interrupted when the first valve is closed. The first and second pistons are functionally connected together by the hydraulic fluid when a second valve is open to transmit movement of the first piston to the third piston. This second functional connection is interrupted when the second valve is closed. | 12-30-2010 |
20110024242 | ELECTRO-HYDRAULIC BRAKE SYSTEM - Disclosed herein is an electro-hydraulic brake system. The electro-hydraulic brake system includes a master cylinder having a first cylinder and a second cylinder, a hydraulic power unit to supply brake oil into the respective first and second cylinders, and a first wheel and a second wheel connected respectively to the first cylinder and the second cylinder. The first wheel and the second wheel are independently controlled by hydraulic pressure generated in the first cylinder and the second cylinder. | 02-03-2011 |
20110073419 | Brake Controller - In a brake controller, a slope climbing vehicle stop detecting means determines when the vehicle is stopped while climbing a slope, and a pedal release detecting means determines that the pedal is released. An assist control unit interpolates a decrement in brake fluid pressure in the master cylinder due to an input piston movement caused by a release of a brake pedal. An assist piston is controlled by an electric motor to restore and maintain the fluid pressure within the master cylinder. | 03-31-2011 |
20110079471 | ELECTRIC BRAKING CIRCUIT PROVIDED WITH MEANS FOR CONTROLLING MEMBERS FOR BLOCKING THE PUSHERS OF ELECTROMECHANICAL ACTUATORS FITTED TO AN AIRCRAFT BRAKE - The invention relates to an aircraft braking circuit having brakes with electromechanical actuators for braking wheels located at the bottom end of at least one undercarriage. In accordance with the invention, a remote unit is located at the bottom of the undercarriage close to the actuators and connected to a certain number of said actuators, the remote unit receiving a power supply via a power supply cable going down along the undercarriage, and having as many controlled switches as connected actuators for selectively powering blocking members fitted to the connected actuators, the switches being controlled independently of one another by software parking orders generated by a control unit and passing via a single communications bus going down along the undercarriage to the remote unit. | 04-07-2011 |
20110108375 | BRAKE DEVICE FOR A MOTOR VEHICLE HAVING AT LEAST THREE BRAKE CIRCUITS - A brake device for motor vehicles has at least two hydraulic brake circuits which are directly connected to a master brake cylinder, as well as an additional brake circuit, which is able to be actuated via a control device, independently of the master brake cylinder. Because of the separate hydraulic brake circuits in the region of the front axle, redundancy is provided, while the third brake circuit, that is able to be actuated independently of the master brake cylinder and typically acts on the rear wheels, during automatic actuation, permits taking into account a braking effect by additional active assemblies, such as a driven generator. | 05-12-2011 |
20110132702 | METHOD FOR OPERATING A BRAKING SYSTEM OF A VEHICLE, BRAKING SYSTEM - A method for operating a braking system of a vehicle, particularly of a motor vehicle, is described in which an automatic braking process is triggered by the exceeding of a specifiable threshold value by a rate of change conditioned upon the operation of a brake pedal. It is provided, in this context, that the threshold value is specified/varied by the driver in an initialization operation of the braking system. Also described is a related braking system. | 06-09-2011 |
20110155521 | ASYMMETRICAL ELECTRIC BRAKING ARCHITECTURE FOR AIRCRAFT - The invention relates to an asymmetrical electric braking architecture for aircraft, comprising a certain number of electro-mechanical brake actuators (EBAs) for selectively applying a braking force on friction elements in order to slow down rotation of braked wheels, said architecture comprising:
| 06-30-2011 |
20110168504 | EMERGENCY BRAKING SYSTEM - An emergency automotive braking system in which a vehicle brake is movable between a braking position and a non braking position. An electrically powered actuator is mechanically coupled to the vehicle brake and, when energized, moves the vehicle brake from the non braking and to the braking position. A charging circuit electrically charges a capacitor bank. A collision avoidance system generates a trigger output signal upon detection of a potential vehicle collision to a control system which, in response to the trigger signal, electrically connects the capacitor bank to the actuator to energize the actuator. | 07-14-2011 |
20110233011 | VEHICLE BRAKE SYSTEM - A vehicle brake system has a plurality of hydraulic brake circuits via which wheel brake units are supplied with brake pressure. At least one wheel brake unit is connected to at least two brake circuits and supplied with brake pressure via these two brake circuits. | 09-29-2011 |
20110266100 | BRAKE SYSTEM AND VEHICLE COMPRISING SAID BRAKE SYSTEM - A brake system for a vehicle, in particular for a utility vehicle, having at least one wheel brake device on each of at least one front axle and at least one rear axle, the device including a service brake actuator and a spring-type brake actuator, it being possible to actuate the wheel brake device by a service brake actuation device and a parking brake actuation device. Also described is a vehicle having such a brake system. | 11-03-2011 |
20110272225 | AUTOMOTIVE VEHICLE BRAKING MANAGEMENT SYSTEM AND METHOD - A system for managing braking of an automotive vehicle including an assisted parking brake with at least one brake actuator capable of acting on at least one wheel of the vehicle and a mechanism applying the parking brake. The system includes a mechanism automatically increasing firmness with which the parking brake is applied after the vehicle engine stops, which includes a module that detects stopping of the engine and a module that commands an increase in the firmness of application. The module is configured to emit a signal characteristic of the stopping of the engine as a function of a status of the engine and of a status of an electrical supply. The module is configured to emit a signal demanding an increase in the firmness of application as a function of a status of the brake actuators and of signal characteristic of the stopping of the engine that comes from the module. | 11-10-2011 |
20110278113 | BRAKE DEVICE - To make a brake device generate a required braking force, a hydraulic control section switches, according to the relative magnitude between the required braking force and a braking force exerted by braking operation, between drive of a pump motor and non-drive of the pump motor and a master cut valve reduces the flow of brake fluid in the direction to a master cylinder. By this, a wheel cylinder maintains hydraulic pressure capable of generating the required braking force. As a result, the pump motor is not necessarily always driven when the required braking force is generated, and the operating time period of the pump motor is reduced. As a result, a load on the pump motor is reduced to enhance durability of the pump motor. | 11-17-2011 |
20110290600 | CALIPER BODY FOR DISC BRAKE FOR VEHICLE - [Object] There is provided a caliper body for a two system-type disc brake for a vehicle, which is reduced in size and has an improved air bleeding property by employing a simple structure. | 12-01-2011 |
20110303497 | METHOD AND SYSTEM FOR CONTROLLING VEHICLE BRAKING - Methods and systems for controlling braking in a vehicle are provided, for example in a vehicle in which regenerative braking is provided using a motor capable of providing regenerative braking on one axle or wheel that does not have a friction brake component. If it is determined that the energy storage system of the vehicle cannot accept additional electrical energy created by the regenerative braking, the electrical energy is transferred to another location such as a motor on another axle or wheel, resulting in a propulsion torque on that axle. In order to maintain the total desired braking consistent with the driver command, friction braking is provided on the axle the regenerative braking energy is transferred to using a friction braking component, based in part upon the amount of propulsion torque, when the energy storage system cannot accept additional electrical energy. | 12-15-2011 |
20110303498 | VEHICLE AND METHOD FOR CONTROLLING REGENERATIVE BRAKING - A vehicle and a method for controlling regenerative braking may utilize the maximum available regenerative braking torque for some time during a braking event. As the vehicle speed and/or powertrain torque decreases, the regenerative braking torque is controlled to deviate from the maximum. The point at which the regenerative braking torque deviates from the maximum is chosen based on the level of vehicle deceleration. The regenerative braking torque is then smoothly blended out until it reaches zero. The regenerative braking torque is brought to zero when the vehicle speed is very low, thereby eliminating the inefficiencies associated with operating a motor at a very low speed. | 12-15-2011 |
20120000738 | BRAKING DEVICE - Under a normal condition, brake fluid pressure generated by a slave cylinder ( | 01-05-2012 |
20120006634 | Actuating Device and Method for Actuating Such an Actuating Device - The invention relates to an actuating device for a parking brake of a vehicle, in particular a commercial vehicle, wherein the actuating device comprises an operating brake for driving operation and the parking brake for securing the vehicle. A first braking effect can be generated by means of the parking brake for the vehicle independently of a braking procedure for the operating brake. The actuating device comprises a first switched state, wherein the first braking effect of the parking brake cannot be provided, and comprises a second switched state, wherein the first, in particular full, braking effect and the parking brake can be provided. The actuating device further comprises a manually actuatable operating element ( | 01-12-2012 |
20120055744 | HYBRID BRAKE CONTROL - A method to control a vehicle including control of regenerative brakes and friction brakes includes monitoring a desired corner force and moment distribution, monitoring real-time actuator constraints including a braking torque limit of each of the regenerative brake, determining a regenerative braking torque for each of the regenerative brakes based upon the desired corner force and moment distribution and the real-time actuator constraints, determining a friction braking torque for each of the friction brakes based upon the desired corner force and moment distribution and the determined regenerative braking torque for each of the regenerative brakes, and controlling the vehicle based upon the determined regenerative braking torques and the determined friction braking torques. | 03-08-2012 |
20120061192 | Brake system for a vehicle - A brake system for a vehicle includes a main brake cylinder which has a first chamber which is hydraulically connected to at least one wheel brake cylinder for braking a wheel of the vehicle; an activating device for the driver to mechanically act on a piston of the main brake cylinder in order to pressurize hydraulic fluid in the first chamber of the main brake cylinder; and a pressure generating device which is hydraulically connected to the first chamber of the main brake cylinder, and which for activating the wheel brake cylinder supplies the wheel brake cylinder with hydraulic fluid through the first chamber of the main brake cylinder. | 03-15-2012 |
20120061193 | Braking system for a vehicle - A braking system for a vehicle includes a brake assembly, a pedal simulator and a branching device for transmitting the pedal travel of the brake pedal between the brake assembly and the pedal simulator, the branching device having a transmission and distribution linkage in a distribution housing, which is to be operated by the brake pedal. The transmission and distribution linkage includes an adjusting spindle, which is fixedly mounted in the housing and runs transversely to the adjustment direction, and at least one transmission rod supported on the adjusting spindle and held adjustably in the axial direction of the adjusting spindle as well as transversely to the axial direction. | 03-15-2012 |
20120160619 | FLUID-PRESSURE BRAKE SYSTEM - A hydraulic brake system includes a braking state switching device which selectively realizes: a high-pressure-source-pressure dependent braking state in which a brake force is generated with a magnitude that depends on a pressure of brake fluid supplied from a high-pressure-source device; and an operation-force/high-pressure-source-pressure dependent braking state in which a brake force can be generated with a magnitude that depends on both of the pressure of the brake fluid supplied from the high-pressure-source device and a brake operation force of a driver which is applied to a brake operating member and that is larger than the magnitude of a brake force which can be generated in the high-pressure-source-pressure dependent braking state. The brake system may be equipped with a high-pressure-source device having a relatively small capacity, thereby allowing the high-pressure-source device to be compact and low-cost. | 06-28-2012 |
20120168265 | Hydraulic Accumulator System and Method for Operating a Hydraulic Accumulator System - A method and a device are disclosed which, as part of an overall brake system i.e. a brake system consisting of a conventional part and a further, for example recuperative part, can cause volume displacements in a brake circuit or in a piston-cylinder unit on a brake pedal. This is used in order to compensate for a change in the pressure conditions through the controllable servobrake in the hydraulic part of the brake system owing to an additional braking action of the further part of the brake system and thereby to blend braking actions of different brake systems to form an overall braking action without the driver realizing this at the brake pedal by changing the position of the pedal. The method can be used, for example, in vehicles in which a braking deceleration is caused by operating an electric machine as a generator to produce current and which additionally have a conventional, hydraulic brake system as a further brake system or backup brake system. | 07-05-2012 |
20120205202 | METHOD FOR SETTING THE CLAMPING FORCE OF A HYDRAULICALLY SUPPORTED ELECTRIC MOTOR-DRIVEN PARKING BRAKE - A method for setting the clamping force acting on a wheel brake, a part of the clamping force being provided using an electromechanical brake device and simultaneously another part of the clamping force being provided using a hydraulic brake device. During an application procedure, the power consumption of the electric motor-driven brake device is regulated to an essentially constant value in an operating phase (phase 4), in which both brake devices simultaneously exert force, so as to set the clamping force of the parking brake very precisely. | 08-16-2012 |
20130056315 | METHOD FOR SETTING THE CLAMPING FORCE EXERTED BY A PARKING BRAKE IN A VEHICLE - In a method for setting the clamping force exerted by a parking brake, for the case in which after the conclusion of a clamping process an event occurs that disturbs the stationary situation of the vehicle, a subsequent clamping process is carried out by actuating an electric brake motor and an additional brake device. | 03-07-2013 |
20130112513 | SYSTEM AND METHOD FOR CONTROLLING AN ELECTRONIC BRAKE - A system for controlling an electronically actuated brake is described. The system includes a plurality of brakes controlled by an electronic brake control unit, a brake pedal, momentary switch contact, and a latching relay. When the brake pedal is deflected beyond a threshold and the momentary switch contact are engaged the electronic brake control unit will communicate to the brakes to change their state between on and off. The present state is saved in the latching relay even when power is removed from the system. | 05-09-2013 |
20140041973 | Secondary Parking Apparatus for a Heavy Vehicle - A secondary parking apparatus is provided for a vehicle having components of a parking brake system, components of an anti-lock brake system (ABS). and a manually-operable device. The secondary parking apparatus comprises an electronic controller arranged to (i) monitor the manually-operable device to detect an operator intent signal to apply parking brakes of the parking brake system, (ii) receive a combination of one or more signals indicative of a fault condition of the vehicle, and (iii) provide one or more control signals to be applied to components of the ABS to selectively exhaust air pressure from components of the ABS to atmosphere so that parking brakes of the parking brake system are applied to park the vehicle when both the operator intent signal and the combination of one or more signals indicative of a fault condition of the vehicle are detected. | 02-13-2014 |
20140144732 | Pedal Travel Simulator, Actuating Unit for a Hydraulic Brake System and Brake System - The invention relates to a pedal travel simulator for the hydraulic connection to a pressure chamber of a master brake cylinder of a hydraulic brake system, in particular for motor vehicles, having a housing and a simulator piston that is diplaceably mounted in the housing, wherein the simulator piston delimits a first hydraulic simulator chamber together with the housing, which simulator chamber can accommodate pressurizing media. Wherein an elastic restoring means acts on the simulator piston, wherein the pedal travel simulator includes a second hydraulic simulator chamber for accommodating pressurizing media, the simulator chamber being delimited by an elastically deformable membrane. The invention further relates to an actuating unit for a hydraulic motor vehicle brake system of the brake-by-wire type, and to a hydraulic motor vehicle brake system. | 05-29-2014 |
20140202801 | Method for Hydraulically Boosting an Electric Parking Brake of a Vehicle - A method for hydraulically boosting a vehicle electric parking brake having a hydraulic service brake and an electric parking brake. Application forces electically generated by the parking brake function is superimposed on the boosting brake force generated by a hydraulic boosting brake pressure provided by the service brake to the brake actuator. When the parking brake is actuated to generate a predetermined application force, the force generated by the brake actuator is detected as the actual value, if an actual value of the measured value is smaller than a first target value a boosting brake pressure value is applied to the brake actuator, and by means of the parking brake function an adjustment function for the tension of the brake actuator to which the hydraulic boosting brake pressure is applied is carried out to achieve the predetermined application force. | 07-24-2014 |
20140345986 | METHOD FOR SETTING A HYDRAULIC VEHICLE BRAKE - A method for operating a vehicle brake having a brake servo unit and a parking brake actuator. In the case of a failure of the brake servo unit, the distance between brake linings of the vehicle brake and brake disk is reduced by actuating the parking brake actuator. | 11-27-2014 |
20160201746 | Parking Brake | 07-14-2016 |
188106000 | Plural systems | 30 |
20080236961 | VEHICLE-USE DISC BRAKE - A disc brake in which three pistons are arranged respectively on both sides of a brake disc to miniaturize the disc brake and to enhance the merchantability of a motorcycle by simplifying the appearance shape of the disc brake. A first oil passage provides a communication with first and second oil pressure chambers respectively facing back surfaces of the first and second pistons. A second oil passage provides a communication with third, fourth, fifth and sixth oil pressure chambers respectively facing back surfaces of the third to sixth pistons. The first and second oil passages are formed inside of a caliper body. | 10-02-2008 |
20100206673 | BRAKE SYSTEM FOR A MOTOR VEHICLE - A brake system for a motor vehicle which simplifies the hydraulic design and avoids a vacuum prevailing over a relatively long period of time. The first hydraulic unit has a suction volume, which is connected to the suction side of the pump and which, in the event of a change in the pressure on the suction side of the pump, provides a pressure and volume equalization by means of the brake fluid stored in the suction volume, with an elastic element. | 08-19-2010 |
20100236879 | METHOD FOR RELEASING A PARKING BRAKE OF A MOTOR VEHICLE - In the method a drive tool ( | 09-23-2010 |
20110100769 | ARCHITECTURE FOR AN ELECTROMECHANICAL BRAKING SYSTEM - The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels, each of the wheels being fitted with brakes, each having a certain number of electromechanical braking actuators, the architecture including controllers for delivering power signals to the actuators in response to a braking order, the wheels on each of the undercarriages being grouped together in first and second complementary groups such that for each group of wheels, a first group of actuators is controlled by one controller that controls those actuators only, and a complementary second group of actuators is controlled by another controller that controls only those actuators. | 05-05-2011 |
20110100770 | POWER SUPPLY ARCHITECTURE FOR AIRCRAFT BRAKES FITTED WITH ELECTROMECHANICAL ACTUATORS - The invention relates to an architecture for powering aircraft brakes for an aircraft having at least two undercarriages, each having a certain number of wheels (L | 05-05-2011 |
20110297493 | BRAKE BOOSTER - The invention relates to an electromechanical brake booster having a piston rod to be actuated using muscular power, and an electromechanical actuator. Muscular power acting upon the pedal rod is transmitted via an elastic transmission element, for example a spring element, and the actuator power is transmitted separately thereof via its proper elastic transmission element which has for example a number of spring elements and dampers arranged in parallel thereto. The controllable brake booster is operated depending on a variable representing the relative deviation of the booster body and the input element. The brake booster according to the invention allows the adjustment of a booster characteristic which is variable in a wide range and which inter alia can depend on an actuation path, an actuation speed and/or an actuation acceleration. The switch-over to different modes, for example a sports mode, is also possible. | 12-08-2011 |
20120090928 | METHOD FOR OPERATING A BRAKING SYSTEM, BRAKING SYSTEM AND MOTOR VEHICLE HAVING A BRKAING SYSTEM - A method for operating a braking system in a motor vehicle having at least two wheel brakes ( | 04-19-2012 |
20140034432 | ELECTRIC BRAKE ACTUATOR FOR VEHICLES - An electric brake actuator configured to be operatively connected to a vehicle brake to operate the vehicle brake includes two electric motors each having an output shaft rotated by operation of the respective motor; an actuator output connectable to the vehicle brake, and a differential operatively connected to the actuator output and to both the output shaft of the first electric motor and the output shaft of the second electric motor to transfer the first and second driving forces to the actuator output by way of the differential. | 02-06-2014 |
20140144733 | SHIFT-BY-WIRE SYSTEM FOR ACTUATING A VEHICLE PARK BRAKE - A vehicle park-brake system includes a park brake, a solenoid; a first pressure source; a servo for disengaging the park-brake using the first pressure source, and for disengaging the park-brake using a force produced by the solenoid that actuates first and second pistons; and a second pressure source applied to the servo causing hydraulic pressure to vent from the servo, the pistons to detach mutually, and the servo to engage the park brake. | 05-29-2014 |
20100078271 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatic vehicle brakes, especially for commercial vehicles, includes in addition to a pneumatic locking mechanism, a manual release mechanism for manually releasing the spring brake section, and a device designed to visually recognize the manual release condition of the spring brake section outside of the housing. | 04-01-2010 |
20100078272 | Brake Cylinder for a Pneumatically Operable Vehicle Brake - A brake cylinder for a pneumatic vehicle brake, particularly for a commercial vehicle includes a spring-loaded brake section for performing parking brake operations by a spring-loaded spring, and a service brake section for performing compressed air-actuated service brake operations. The spring-loaded brake section and the service brake section are combined in a structural unit in a housing. The housing is divided by a piston into a pressure chamber to which compressed air can be applied and a further space. The pressure chamber serves the actuation of the service brake section in the pressure space and the spring-loaded spring of the spring-loaded section being disposed in the additional space on the opposite side of the piston. The spring-loaded spring acts on an additional spring-loaded piston in the space. The piston is lockable in relation to the piston by a pneumatically operable locking mechanism and releasable from the same by releasing the locking mechanism. The piston is further connected to a piston rod, either directly or indirectly or by additional elements, for actuating the vehicle brake. The brake cylinder is configured such that the compressed air supply to the locking mechanism occurs via a compressed air hose. | 04-01-2010 |
20100084228 | Compact Combination Brake Cylinder Comprising a Pneumatic Locking Mechanism - A brake cylinder for pneumatic vehicle brakes, especially for utility vehicles includes a spring brake section for carrying out parking brake actions by way of a brake spring, and a service brake section for carrying out pneumatic service brake actions. The spring brake section and the service brake section are combined in one housing as a structural unit. The housing is subdivided by a piston into two compartments, one compartment of the two being used as the pressure compartment for actuating the service brake section, and the brake spring of the spring section being arranged in the other compartment on the opposite end of the piston. The brake spring acts upon an additional spring piston in the compartment, which can be locked relative to the piston by a pneumatic locking mechanism and can be released therefrom by releasing the locking mechanism. The spring piston is connected to a piston rod directly or via additional elements to actuate the vehicle brake. Once the locking mechanism is released, the brake spring is effective between the two pistons and displaces them relative to each other during a parking brake action. The locking mechanism is configured as a pneumatic coupling. | 04-08-2010 |
20100084229 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatically actuated vehicle brakes, especially for commercial vehicles, includes a housing. The housing is divided into two chambers by a piston, one of the chambers being used as a pressure chamber for actuating an operating brake section, and a cylinder spring of a spring-loaded brake section being arranged in the other chamber on the opposite side of the piston. The cylinder spring acts on another spring-loaded piston in the chamber, which can be blocked in relation to the first piston by a pneumatically actuated locking mechanism. The other spring-loaded piston is released from the first piston by a releasing action of the blocking mechanism, and is connected to a piston rod for actuating the vehicle brake. Following release of the blocking mechanism, the cylinder spring acts between the two pistons and moves them in relation to each other during a parking braking operation. The brake cylinder includes a manually actuatable release device, in addition to the pneumatically actuable blocking mechanism, for manually releasing the spring-loaded brake section without impairing the function of the operating brake section. | 04-08-2010 |
20100252378 | Control Device for a Brake System of a Utility Vehicle and Method for Controlling a Brake System - A control device and a method for a brake system of a utility vehicle are provided. The brake system includes service brake cylinders and spring brake cylinders for braking the utility vehicle, an electronic control device, sensors for detecting the state of motion of the utility vehicle, a foot brake valve for actuating the service brake, a manual control unit, a module encompassing electrically controllable valves for an anti-blocking system, and a module encompassing electrically controllable valves for an electrically controlled parking brake. The electronic control device influences both the anti-lock system and the electrically controlled parking brake. | 10-07-2010 |
20100320039 | Brake Cylinder for Compressed Air Operated Vehicle Disc Brakes - A brake cylinder is provided for vehicle brakes, in particular for commercial vehicles brakes, that is equipped with a brake cylinder housing, in which a spring-loaded piston, a service brake piston, a spring-loaded spring and a piston return spring are arranged. The brake cylinder is simple to construct and extremely compact. The spring-loaded piston is in a primary chamber of the brake cylinder and is arranged between the service brake piston and a front side of the brake cylinder housing having the compressed air connections. | 12-23-2010 |
20110005874 | BRAKE SYSTEM FOR A VEHICLE AND BRAKE PEDAL DEVICE FOR SUCH A BRAKE SYSTEM - The invention relates to a braking system ( | 01-13-2011 |
20110042171 | Procedure for Actuating a Hydraulic Parking Brake - A procedure for actuating a parking brake is described, the parking brake comprising a brake piston which is received in a hydraulic chamber and is displaceable within the hydraulic chamber by means of a hydraulic actuator on the one hand and a mechanical actuator on the other. During operation of the parking brake the mechanical actuator is activated in a first step in order to displace the brake piston in the hydraulic chamber in such a way that a volume of a hydraulic fluid contained in the hydraulic chamber is increased. At a subsequent time the hydraulic actuator is activated in order to build up or increase a clamping force of the parking brake. The hydraulically generated or increased clamping force is then maintained by means of the mechanical actuator. | 02-24-2011 |
20110209953 | Combined Service Brake and Spring Brake Cylinder with Sealing Assemblies Consisting of a Guide Ring and at Least One Sealing Element - A combined service brake and spring brake cylinder for vehicle brake systems, includes a service brake piston and a spring brake piston. A sealing assembly is located in a central bore of a partition and seals off the interior of the service brake cylinder from the interior of the spring brake cylinder. The radial outer peripheral surface of the spring brake piston has an additional sealing assembly for sealing off a spring chamber. At least one of the sealing assemblies contains a guide ring that guides the spring brake piston rod in the bore of the partition, or the spring brake piston in the spring brake cylinder. The guide ring consists of a more rigid material than that of at least one sealing element. The sealing element consists of an elastomer that is connected to the guide ring by original forming methods such as injection molding or transfer molding. | 09-01-2011 |
20110297492 | Compact Combination Brake Cylinder Comprising a Pneumatic Locking Mechanism - A brake cylinder for pneumatic vehicle brakes, especially for utility vehicles includes a spring brake section for carrying out parking brake actions by way of a brake spring, and a service brake section for carrying out pneumatic service brake actions. The spring brake section and the service brake section are combined in one housing as a structural unit. The housing is subdivided by a piston into two compartments, one compartment of the two being used as the pressure compartment for actuating the service brake section, and the brake spring of the spring section being arranged in the other compartment on the opposite end of the piston. The brake spring acts upon an additional spring piston in the compartment, which can be locked relative to the piston by a pneumatic locking mechanism and can be released therefrom by releasing the locking mechanism. The spring piston is connected to a piston rod directly or via additional elements to actuate the vehicle brake. Once the locking mechanism is released, the brake spring is effective between the two pistons and displaces them relative to each other during a parking brake action. The locking mechanism is configured as a pneumatic coupling. | 12-08-2011 |
20120018262 | ELECTROMECHANICAL VEHICLE BRAKE - A combined electromechanical vehicle brake has a hydraulically activated operating brake and an electromechanically activated parking brake apparatus. A hydraulic operating pressure chamber in a brake housing is delimited by a brake piston that can be loaded by hydraulic pressure to carry out operating braking actions. The brake piston can be activated along a longitudinal piston axis to achieve a braking effect. The parking brake apparatus acts upon the brake piston by a gear unit because the gear unit converts the rotational movement of an electromechanical actuator into a translational movement, causing the brake piston to be activated to carry out parking brake processes and remain in the activated position. The gear unit has a threaded spindle and a threaded nut that contact one another via a plurality of rolling elements. A spring element allows the rolling elements to slip when the gear unit is activated in the unloaded state. | 01-26-2012 |
20130001027 | Method for operating a parking brake of a vehicle - A method for operating a parking brake of a vehicle, in particular of a motor vehicle, which parking brake operates in the superposition mode, the brake force of the parking brake being applicable by two different force-generating actuators mutually supporting one another in the superposition mode. It is provided that the force-generating, in particular pressure-generating, actuator is activated for support even before the superposition. | 01-03-2013 |
20130032437 | Internal Ventilation Diaphragm Piston Brake Actuator - This invention is related to the decrease of the breakdowns that occur in the actuators by means of the application of internal ventilation system to the diaphragm piston spring brake actuators which are used in vehicles such as truck, van, bus and trailer. The internally ventilated diaphragm-piston spring brake actuator that is developed by this invention is comprised by an aluminum piston, an aluminum pipe, a park chamber, a service chamber, a piston valve ( | 02-07-2013 |
20130048445 | WORKING VEHICLE - An operating system is formed in which an engagement shaft supported on an end portion of a brake piston is inserted through an engagement hole portion of a balance member; an operation wire is connected to the balance member via a coupling pin; and brake operating arms of rear wheel brake mechanisms are operated by a pair of arm portions of the balance member. A broad area is formed in the engagement hole portion in a manner allowing the balance member to swing about the coupling pin when the operation wire is pulled. | 02-28-2013 |
20130087419 | Pneumatic Wheel Brake for a Vehicle - The invention relates to a pneumatic wheel brake for a vehicle, wherein the wheel brake has at least one brake lever ( | 04-11-2013 |
20130146404 | Compact Combined Cylinder Comprising a Manual Release Device - A brake cylinder for pneumatic vehicle brakes, especially for commercial vehicles, includes in addition to a pneumatic locking mechanism, a manual release mechanism for manually releasing the spring brake section, and a device designed to visually recognize the manual release condition of the spring brake section outside of the housing. | 06-13-2013 |
20130175124 | METHOD FOR OPERATING A MECHANICAL PARKING BRAKE - The invention relates to a method for operating a brake device, in particular of a motor vehicle, wherein the brake device comprises a service brake and a mechanical parking brake, wherein the parking brake can be actuated by means of a mechanical actuating element, comprising at least the steps of establishing that the actuating element has been moved from an idle position into a position of use, simultaneously controlling a pressure-increasing element, so that a hydraulic pressure is generated, which hydraulic pressure acts on a brake element that is common with the holding element, blocking the common brake element of the service brake and the parking brake with a mechanical block of the mechanical parking brake. | 07-11-2013 |
20130292216 | Pneumatic Brake Actuator with Flow Insensitive Two Way Control Valve - A pneumatic brake actuator has a spring brake actuator with spring and spring brake pressure chambers, and a service brake actuator with service brake pressure and pushrod chambers. A control valve has a seal that is moveable between an open position and a closed position for regulating fluid flow between the spring chamber and service brake pressure chamber. A first surface of the seal is in fluid communication with the service brake pressure chamber and a second surface of the seal is in fluid communication with a valve chamber that is not in fluid communication with the service brake pressure chamber or spring chamber. The seal moves between its open and closed positions based on a pressure in the service brake pressure chamber. Movement of the seal is not dependent on the rate of flow of fluid between the spring chamber and the service brake pressure chamber. | 11-07-2013 |
20150041260 | BRAKING SYSTEM WITH NON-SPRING PARKING BRAKE ACTUATOR - A braking system is provided that enables application and release of a parking brake with fluid control and that also maintains application of the brake during a loss of fluid pressure—all without using springs and using only a single fluid control conduit. The brake actuator for the system includes a housing defining service and parking chambers. A pushrod in the parking chamber is configured for movement with a diaphragm in the chamber. The parking brake is applied by introducing fluid on one side of the diaphragm. A clutch surrounds the pushrod and includes a tooth configured to engage corresponding teeth on the pushrod to hold the position of the pushrod even during a loss of fluid pressure. The clutch is rotated under fluid control to move the clutch tooth into and out of alignment with the teeth on the pushrod to hold and release the parking brake. | 02-12-2015 |
20150101897 | Spring Brake Cylinder Having Combined Inlet and Outlet Diaphragm Valve - A spring brake cylinder is provided for brake systems of vehicles. It includes a spring brake piston, which is arranged in a housing of the spring brake cylinder and can be actuated by at least one accumulator spring and separates a spring chamber containing the accumulator spring from a spring brake chamber of the spring brake cylinder that can be filled with air for release and can be vented of air for application. A circulation device is provided at least for venting the spring chamber directly into the atmosphere. The circulation device is configured as a diaphragm valve device having at least one elastically movable outlet diaphragm and at least one elastically movable inlet diaphragm. The inlet diaphragm and the outlet diaphragm are in a closed position in contact with an associated valve seat in the home position of the diaphragms and, when a pressure difference between the spring chamber and the atmosphere exceeding a minimum pressure value is present, the diaphragms are moved into an open position lifted from the valve seat in order to build up and reduce pressure in the spring chamber. | 04-16-2015 |
20150114770 | ELECTRO-HYDRAULIC ACTUATOR FOR BRAKE - An electro-hydraulic actuator ( | 04-30-2015 |
20150144440 | PNEUMATIC BRAKE ACTUATOR WITH FLOW INSENSITIVE TWO WAY CONTROL VALVE - A pneumatic brake actuator has a spring brake actuator with spring and spring brake pressure chambers, and a service brake actuator with service brake pressure and pushrod chambers. A control valve has a seal that is moveable between an open position and a closed position for regulating fluid flow between the spring chamber and service brake pressure chamber. A first surface of the seal is in fluid communication with the service brake pressure chamber and a second surface of the seal is in fluid communication with a valve chamber that is not in fluid communication with the service brake pressure chamber or spring chamber. The seal moves between its open and closed positions based on a pressure in the service brake pressure chamber. Movement of the seal is not dependent on the rate of flow of fluid between the spring chamber and the service brake pressure chamber. | 05-28-2015 |
20150345581 | PARKING BRAKE APPARATUS - A parking brake apparatus may include: a housing; a gear unit installed in the housing, and rotated by operation of a motor unit; a nut screw part connected to the gear unit, and rotated by the rotation of the gear unit; a bolt screw coupled the nut screw part so as to pass through the nut screw part, and moved in a longitudinal direction inside the nut screw part in connection with the rotation of the nut screw part; a cable connected to the bolt screw; a piston unit installed to be slidably moved in the housing, and having one side through which the cable passes and the other side which is extended toward the nut screw part; and an elastic member arranged between an inner wall of the housing and the piston unit, and elastically deformed as the piston is slidably moved. | 12-03-2015 |
20160186825 | COMBINED VEHICLE BRAKE WITH A BALL SCREW DRIVE - A combined vehicle brake which has a hydraulically actuable service brake and an electromechanically actuable parking brake device. The present invention is based on the problem of improving the known ball screw drives for use in vehicle brakes, of making simple automated assembly possible, and in addition of opening up the possibility to increase cycle times. A spring element of double helical type which is configured differently in sections is provided, in a middle section, that is to say in the drive thread turn, which substantially do not impede the elastically pliable adaption of the spring element to the helically wound drive thread turn, and wherein a bearing section is additionally provided at at least one end of the spring element, which bearing section has an increased transverse rigidity or has it impressed onto it in comparison with the middle section. | 06-30-2016 |
20160377137 | Motor Vehicle Brake Which Can Be Activated Electromechanically And Hydraulically And Has Optional Self-Locking - A motor vehicle brake, in particular a motor vehicle brake which can be activated in a combined fashion both hydraulically and electromechanically, having an actuator assembly comprising a housing, an actuator element which can be moved relative to the housing in order to move a brake lining hydraulically or electromechanically, a motor-operated drive, a movement mechanism arranged between the motor-operated drive and the movable actuator element, a gear arrangement assigned to the movement mechanism, and a separate self-locking device which is designed to block the movement mechanism when necessary and is integrated into the motor-operated drive. | 12-29-2016 |
20160377138 | SELECTIVELY SELF-LOCKING ELECTROMECHANICALLY AND HYDRAULICALLY ACTUATED MOTOR VEHICLE BRAKE - A motor vehicle brake, in particular a combined hydraulically and electromechanically actuated motor vehicle brake, comprising an actuator subassembly that includes: a brake housing, an actuation member, which is movable in relation to the brake housing, for hydraulically or electromechanically moving a brake lining, a motor-operated drive, a moving mechanism between the motor-operated drive and the movable actuation member, a gear train associated with the moving mechanism, and a separate self-locking device which is designed to block the moving mechanism as needed. The gear train includes at least two gear stages. The disclosed motor vehicle brake is characterized in that the self-locking device is arranged on the gear train in such a way that reactive forces of the self-locking device that occur during the self-locking action can be deflected into the brake housing via a force guiding member. | 12-29-2016 |
20100326778 | Brake pedal simulator and brake system - A brake pedal simulator for a brake system of a motor vehicle has a chamber with hydraulic fluid which is limited by a first piston coupled to a brake pedal, a second piston having restoring means for producing a restoring force, and a third piston driving a pressure transducer. The first and second pistons are functionally connected together by the hydraulic fluid when a first valve is open to transmit the restoring force to the first piston upon movement against the hydraulic fluid. This first functional connection is interrupted when the first valve is closed. The first and second pistons are functionally connected together by the hydraulic fluid when a second valve is open to transmit movement of the first piston to the third piston. This second functional connection is interrupted when the second valve is closed. | 12-30-2010 |
20110024242 | ELECTRO-HYDRAULIC BRAKE SYSTEM - Disclosed herein is an electro-hydraulic brake system. The electro-hydraulic brake system includes a master cylinder having a first cylinder and a second cylinder, a hydraulic power unit to supply brake oil into the respective first and second cylinders, and a first wheel and a second wheel connected respectively to the first cylinder and the second cylinder. The first wheel and the second wheel are independently controlled by hydraulic pressure generated in the first cylinder and the second cylinder. | 02-03-2011 |
20110073419 | Brake Controller - In a brake controller, a slope climbing vehicle stop detecting means determines when the vehicle is stopped while climbing a slope, and a pedal release detecting means determines that the pedal is released. An assist control unit interpolates a decrement in brake fluid pressure in the master cylinder due to an input piston movement caused by a release of a brake pedal. An assist piston is controlled by an electric motor to restore and maintain the fluid pressure within the master cylinder. | 03-31-2011 |
20110079471 | ELECTRIC BRAKING CIRCUIT PROVIDED WITH MEANS FOR CONTROLLING MEMBERS FOR BLOCKING THE PUSHERS OF ELECTROMECHANICAL ACTUATORS FITTED TO AN AIRCRAFT BRAKE - The invention relates to an aircraft braking circuit having brakes with electromechanical actuators for braking wheels located at the bottom end of at least one undercarriage. In accordance with the invention, a remote unit is located at the bottom of the undercarriage close to the actuators and connected to a certain number of said actuators, the remote unit receiving a power supply via a power supply cable going down along the undercarriage, and having as many controlled switches as connected actuators for selectively powering blocking members fitted to the connected actuators, the switches being controlled independently of one another by software parking orders generated by a control unit and passing via a single communications bus going down along the undercarriage to the remote unit. | 04-07-2011 |
20110108375 | BRAKE DEVICE FOR A MOTOR VEHICLE HAVING AT LEAST THREE BRAKE CIRCUITS - A brake device for motor vehicles has at least two hydraulic brake circuits which are directly connected to a master brake cylinder, as well as an additional brake circuit, which is able to be actuated via a control device, independently of the master brake cylinder. Because of the separate hydraulic brake circuits in the region of the front axle, redundancy is provided, while the third brake circuit, that is able to be actuated independently of the master brake cylinder and typically acts on the rear wheels, during automatic actuation, permits taking into account a braking effect by additional active assemblies, such as a driven generator. | 05-12-2011 |
20110132702 | METHOD FOR OPERATING A BRAKING SYSTEM OF A VEHICLE, BRAKING SYSTEM - A method for operating a braking system of a vehicle, particularly of a motor vehicle, is described in which an automatic braking process is triggered by the exceeding of a specifiable threshold value by a rate of change conditioned upon the operation of a brake pedal. It is provided, in this context, that the threshold value is specified/varied by the driver in an initialization operation of the braking system. Also described is a related braking system. | 06-09-2011 |
20110155521 | ASYMMETRICAL ELECTRIC BRAKING ARCHITECTURE FOR AIRCRAFT - The invention relates to an asymmetrical electric braking architecture for aircraft, comprising a certain number of electro-mechanical brake actuators (EBAs) for selectively applying a braking force on friction elements in order to slow down rotation of braked wheels, said architecture comprising:
| 06-30-2011 |
20110168504 | EMERGENCY BRAKING SYSTEM - An emergency automotive braking system in which a vehicle brake is movable between a braking position and a non braking position. An electrically powered actuator is mechanically coupled to the vehicle brake and, when energized, moves the vehicle brake from the non braking and to the braking position. A charging circuit electrically charges a capacitor bank. A collision avoidance system generates a trigger output signal upon detection of a potential vehicle collision to a control system which, in response to the trigger signal, electrically connects the capacitor bank to the actuator to energize the actuator. | 07-14-2011 |
20110233011 | VEHICLE BRAKE SYSTEM - A vehicle brake system has a plurality of hydraulic brake circuits via which wheel brake units are supplied with brake pressure. At least one wheel brake unit is connected to at least two brake circuits and supplied with brake pressure via these two brake circuits. | 09-29-2011 |
20110266100 | BRAKE SYSTEM AND VEHICLE COMPRISING SAID BRAKE SYSTEM - A brake system for a vehicle, in particular for a utility vehicle, having at least one wheel brake device on each of at least one front axle and at least one rear axle, the device including a service brake actuator and a spring-type brake actuator, it being possible to actuate the wheel brake device by a service brake actuation device and a parking brake actuation device. Also described is a vehicle having such a brake system. | 11-03-2011 |
20110272225 | AUTOMOTIVE VEHICLE BRAKING MANAGEMENT SYSTEM AND METHOD - A system for managing braking of an automotive vehicle including an assisted parking brake with at least one brake actuator capable of acting on at least one wheel of the vehicle and a mechanism applying the parking brake. The system includes a mechanism automatically increasing firmness with which the parking brake is applied after the vehicle engine stops, which includes a module that detects stopping of the engine and a module that commands an increase in the firmness of application. The module is configured to emit a signal characteristic of the stopping of the engine as a function of a status of the engine and of a status of an electrical supply. The module is configured to emit a signal demanding an increase in the firmness of application as a function of a status of the brake actuators and of signal characteristic of the stopping of the engine that comes from the module. | 11-10-2011 |
20110278113 | BRAKE DEVICE - To make a brake device generate a required braking force, a hydraulic control section switches, according to the relative magnitude between the required braking force and a braking force exerted by braking operation, between drive of a pump motor and non-drive of the pump motor and a master cut valve reduces the flow of brake fluid in the direction to a master cylinder. By this, a wheel cylinder maintains hydraulic pressure capable of generating the required braking force. As a result, the pump motor is not necessarily always driven when the required braking force is generated, and the operating time period of the pump motor is reduced. As a result, a load on the pump motor is reduced to enhance durability of the pump motor. | 11-17-2011 |
20110290600 | CALIPER BODY FOR DISC BRAKE FOR VEHICLE - [Object] There is provided a caliper body for a two system-type disc brake for a vehicle, which is reduced in size and has an improved air bleeding property by employing a simple structure. | 12-01-2011 |
20110303497 | METHOD AND SYSTEM FOR CONTROLLING VEHICLE BRAKING - Methods and systems for controlling braking in a vehicle are provided, for example in a vehicle in which regenerative braking is provided using a motor capable of providing regenerative braking on one axle or wheel that does not have a friction brake component. If it is determined that the energy storage system of the vehicle cannot accept additional electrical energy created by the regenerative braking, the electrical energy is transferred to another location such as a motor on another axle or wheel, resulting in a propulsion torque on that axle. In order to maintain the total desired braking consistent with the driver command, friction braking is provided on the axle the regenerative braking energy is transferred to using a friction braking component, based in part upon the amount of propulsion torque, when the energy storage system cannot accept additional electrical energy. | 12-15-2011 |
20110303498 | VEHICLE AND METHOD FOR CONTROLLING REGENERATIVE BRAKING - A vehicle and a method for controlling regenerative braking may utilize the maximum available regenerative braking torque for some time during a braking event. As the vehicle speed and/or powertrain torque decreases, the regenerative braking torque is controlled to deviate from the maximum. The point at which the regenerative braking torque deviates from the maximum is chosen based on the level of vehicle deceleration. The regenerative braking torque is then smoothly blended out until it reaches zero. The regenerative braking torque is brought to zero when the vehicle speed is very low, thereby eliminating the inefficiencies associated with operating a motor at a very low speed. | 12-15-2011 |
20120000738 | BRAKING DEVICE - Under a normal condition, brake fluid pressure generated by a slave cylinder ( | 01-05-2012 |
20120006634 | Actuating Device and Method for Actuating Such an Actuating Device - The invention relates to an actuating device for a parking brake of a vehicle, in particular a commercial vehicle, wherein the actuating device comprises an operating brake for driving operation and the parking brake for securing the vehicle. A first braking effect can be generated by means of the parking brake for the vehicle independently of a braking procedure for the operating brake. The actuating device comprises a first switched state, wherein the first braking effect of the parking brake cannot be provided, and comprises a second switched state, wherein the first, in particular full, braking effect and the parking brake can be provided. The actuating device further comprises a manually actuatable operating element ( | 01-12-2012 |
20120055744 | HYBRID BRAKE CONTROL - A method to control a vehicle including control of regenerative brakes and friction brakes includes monitoring a desired corner force and moment distribution, monitoring real-time actuator constraints including a braking torque limit of each of the regenerative brake, determining a regenerative braking torque for each of the regenerative brakes based upon the desired corner force and moment distribution and the real-time actuator constraints, determining a friction braking torque for each of the friction brakes based upon the desired corner force and moment distribution and the determined regenerative braking torque for each of the regenerative brakes, and controlling the vehicle based upon the determined regenerative braking torques and the determined friction braking torques. | 03-08-2012 |
20120061192 | Brake system for a vehicle - A brake system for a vehicle includes a main brake cylinder which has a first chamber which is hydraulically connected to at least one wheel brake cylinder for braking a wheel of the vehicle; an activating device for the driver to mechanically act on a piston of the main brake cylinder in order to pressurize hydraulic fluid in the first chamber of the main brake cylinder; and a pressure generating device which is hydraulically connected to the first chamber of the main brake cylinder, and which for activating the wheel brake cylinder supplies the wheel brake cylinder with hydraulic fluid through the first chamber of the main brake cylinder. | 03-15-2012 |
20120061193 | Braking system for a vehicle - A braking system for a vehicle includes a brake assembly, a pedal simulator and a branching device for transmitting the pedal travel of the brake pedal between the brake assembly and the pedal simulator, the branching device having a transmission and distribution linkage in a distribution housing, which is to be operated by the brake pedal. The transmission and distribution linkage includes an adjusting spindle, which is fixedly mounted in the housing and runs transversely to the adjustment direction, and at least one transmission rod supported on the adjusting spindle and held adjustably in the axial direction of the adjusting spindle as well as transversely to the axial direction. | 03-15-2012 |
20120160619 | FLUID-PRESSURE BRAKE SYSTEM - A hydraulic brake system includes a braking state switching device which selectively realizes: a high-pressure-source-pressure dependent braking state in which a brake force is generated with a magnitude that depends on a pressure of brake fluid supplied from a high-pressure-source device; and an operation-force/high-pressure-source-pressure dependent braking state in which a brake force can be generated with a magnitude that depends on both of the pressure of the brake fluid supplied from the high-pressure-source device and a brake operation force of a driver which is applied to a brake operating member and that is larger than the magnitude of a brake force which can be generated in the high-pressure-source-pressure dependent braking state. The brake system may be equipped with a high-pressure-source device having a relatively small capacity, thereby allowing the high-pressure-source device to be compact and low-cost. | 06-28-2012 |
20120168265 | Hydraulic Accumulator System and Method for Operating a Hydraulic Accumulator System - A method and a device are disclosed which, as part of an overall brake system i.e. a brake system consisting of a conventional part and a further, for example recuperative part, can cause volume displacements in a brake circuit or in a piston-cylinder unit on a brake pedal. This is used in order to compensate for a change in the pressure conditions through the controllable servobrake in the hydraulic part of the brake system owing to an additional braking action of the further part of the brake system and thereby to blend braking actions of different brake systems to form an overall braking action without the driver realizing this at the brake pedal by changing the position of the pedal. The method can be used, for example, in vehicles in which a braking deceleration is caused by operating an electric machine as a generator to produce current and which additionally have a conventional, hydraulic brake system as a further brake system or backup brake system. | 07-05-2012 |
20120205202 | METHOD FOR SETTING THE CLAMPING FORCE OF A HYDRAULICALLY SUPPORTED ELECTRIC MOTOR-DRIVEN PARKING BRAKE - A method for setting the clamping force acting on a wheel brake, a part of the clamping force being provided using an electromechanical brake device and simultaneously another part of the clamping force being provided using a hydraulic brake device. During an application procedure, the power consumption of the electric motor-driven brake device is regulated to an essentially constant value in an operating phase (phase 4), in which both brake devices simultaneously exert force, so as to set the clamping force of the parking brake very precisely. | 08-16-2012 |
20130056315 | METHOD FOR SETTING THE CLAMPING FORCE EXERTED BY A PARKING BRAKE IN A VEHICLE - In a method for setting the clamping force exerted by a parking brake, for the case in which after the conclusion of a clamping process an event occurs that disturbs the stationary situation of the vehicle, a subsequent clamping process is carried out by actuating an electric brake motor and an additional brake device. | 03-07-2013 |
20130112513 | SYSTEM AND METHOD FOR CONTROLLING AN ELECTRONIC BRAKE - A system for controlling an electronically actuated brake is described. The system includes a plurality of brakes controlled by an electronic brake control unit, a brake pedal, momentary switch contact, and a latching relay. When the brake pedal is deflected beyond a threshold and the momentary switch contact are engaged the electronic brake control unit will communicate to the brakes to change their state between on and off. The present state is saved in the latching relay even when power is removed from the system. | 05-09-2013 |
20140041973 | Secondary Parking Apparatus for a Heavy Vehicle - A secondary parking apparatus is provided for a vehicle having components of a parking brake system, components of an anti-lock brake system (ABS). and a manually-operable device. The secondary parking apparatus comprises an electronic controller arranged to (i) monitor the manually-operable device to detect an operator intent signal to apply parking brakes of the parking brake system, (ii) receive a combination of one or more signals indicative of a fault condition of the vehicle, and (iii) provide one or more control signals to be applied to components of the ABS to selectively exhaust air pressure from components of the ABS to atmosphere so that parking brakes of the parking brake system are applied to park the vehicle when both the operator intent signal and the combination of one or more signals indicative of a fault condition of the vehicle are detected. | 02-13-2014 |
20140144732 | Pedal Travel Simulator, Actuating Unit for a Hydraulic Brake System and Brake System - The invention relates to a pedal travel simulator for the hydraulic connection to a pressure chamber of a master brake cylinder of a hydraulic brake system, in particular for motor vehicles, having a housing and a simulator piston that is diplaceably mounted in the housing, wherein the simulator piston delimits a first hydraulic simulator chamber together with the housing, which simulator chamber can accommodate pressurizing media. Wherein an elastic restoring means acts on the simulator piston, wherein the pedal travel simulator includes a second hydraulic simulator chamber for accommodating pressurizing media, the simulator chamber being delimited by an elastically deformable membrane. The invention further relates to an actuating unit for a hydraulic motor vehicle brake system of the brake-by-wire type, and to a hydraulic motor vehicle brake system. | 05-29-2014 |
20140202801 | Method for Hydraulically Boosting an Electric Parking Brake of a Vehicle - A method for hydraulically boosting a vehicle electric parking brake having a hydraulic service brake and an electric parking brake. Application forces electically generated by the parking brake function is superimposed on the boosting brake force generated by a hydraulic boosting brake pressure provided by the service brake to the brake actuator. When the parking brake is actuated to generate a predetermined application force, the force generated by the brake actuator is detected as the actual value, if an actual value of the measured value is smaller than a first target value a boosting brake pressure value is applied to the brake actuator, and by means of the parking brake function an adjustment function for the tension of the brake actuator to which the hydraulic boosting brake pressure is applied is carried out to achieve the predetermined application force. | 07-24-2014 |
20140345986 | METHOD FOR SETTING A HYDRAULIC VEHICLE BRAKE - A method for operating a vehicle brake having a brake servo unit and a parking brake actuator. In the case of a failure of the brake servo unit, the distance between brake linings of the vehicle brake and brake disk is reduced by actuating the parking brake actuator. | 11-27-2014 |
20160201746 | Parking Brake | 07-14-2016 |