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SPEED-CONTROLLED

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303 - Fluid-pressure and analogous brake systems

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Class / Patent application numberDescriptionNumber of patent applications / Date published
303113100 Having a valve system responsive to a wheel lock signal 97
303152000 Regenerative brakes 11
303146000 With yaw control 11
303191000 Odd condition or device detection (e.g., fluid or brake temperature, hill holder, anti-squeal controller, acoustic emission) 9
303155000 Braking pressure demand or braking force desire 8
303122000 With failure responsive means 8
303139000 And traction control 7
303125000 Automatic braking including speed governor or hydraulic retarder 6
303127000 Pneumatic 3
20100295366BRAKE SYSTEM - A brake system for a railway vehicle having wheel slide protection includes a main brake pipe fluidly connected to a distributor, and an auxiliary reservoir fluidly connected to the brake distributor, the distributor being fluidly connected to one or more brake cylinders. A further reservoir is provided, compressed air flow to and from the further reservoir being controllable by a valve, operation of the valve being controlled by a control unit adapted to detect wheel slide. The control unit is adapted to switch air supply between air from the auxiliary reservoir and air from the further reservoir in the event that wheel slide is detected.11-25-2010
20110115284WHEEL SLIP PROTECTION SYSTEM - An anti-locking brake module comprises a housing having a first port coupled to a brake pipe, a second output port coupled to a brake cylinder, and a third port coupled to atmosphere. A blocking valve is in fluid communication with the first port and a vent valve is in fluid communication with the blocking valve, the second port and the third port. At least one sensor is coupled to an axle on the railcar. A microprocessor coupled to the blocking valve, the vent valve and the at least one sensor is configured to calculate one of a wheel speed of the railcar axle and a deceleration rate of the railcar axle based on signals received from the at least one sensor, and compare the calculated one of the wheel speed of the railcar axle and the deceleration rate of the railcar axle with a reference value. In response to the comparison, the blocking valve and the vent valve are activated to vent brake cylinder air pressure out of the third port. A power supply is operatively coupled to the microprocessor.05-19-2011
20100187902PARKING BRAKE MODULE FOR A PRESSURE MEDIUM-OPERATED BRAKE SYSTEM - The invention relates to a parking brake module (07-29-2010
303189000 Independent control for each wheel 3
20130119751METHOD FOR REGULATING A HYDRAULIC BRAKING SYSTEM OF A MOTOR VEHICLE - A method for controlling a hydraulic braking system of a motor vehicle is provided. The method includes determining the vehicle speed and comparing the vehicle speed with a predefinable critical vehicle speed. If the vehicle speed lies below the critical vehicle speed, the method includes determining a required brake pressure or a brake pressure present in the braking system and comparing the brake pressure with a predefinable critical brake pressure. The method includes if the brake pressure lies below the critical brake pressure, blocking the buildup of a brake pressure in wheel brakes used for braking vehicle wheels of a vehicle rear axle.05-16-2013
20130119752Method for Controlling an Electrohydraulic Braking System and Electrohydraulic Braking System - A method and system for controlling an electrohydraulic braking system for a motor vehicle having an antilock braking control function and an electrically controllable pressure generating device having a cylinder-piston arrangement having a hydraulic pressure chamber and a piston displaceable by an electromechanical actuator so that a predetermined pressure can be set in the chamber, and having a number of hydraulically wheel brakes connected to the hydraulic pressure chamber by an electrically actuatable inlet valve and to a pressure medium reservoir by means of an electrically actuatable outlet valve. The cylinder-piston arrangement is actuated in case of antilock controlling at all wheel brake for setting an individual wheel target pressure at each wheel brake, such that the pressure in the hydraulic pressure chamber is set to the greatest wheel target pressure.05-16-2013
20130207453TECHNIQUE FOR OPERATING A BRAKE SYSTEM IN A M-SPLIT SITUATION - Proposed is a technique for operating a hydraulic motor vehicle brake system in an operating situation which requires the formation of a hydraulic pressure difference at opposite wheel brakes of a vehicle axle. Here, each wheel brake is assigned a first slip regulating valve device for decoupling the respective wheel brake from a hydraulic pressure generator, and a second slip regulating valve device for dissipating hydraulic pressure at the respective wheel brake. A method implementation of this technique comprises the steps of building up a hydraulic pressure at the opposite wheel brakes during the course of a braking process, detecting a requirement for forming a hydraulic pressure difference at the opposite wheel brakes, actuating one or more of the slip regulating valve devices assigned to the opposite wheel brakes so as to form the hydraulic pressure difference by virtue of different hydraulic pressures being set at the opposite wheel brakes, and, in reaction to a driver demand, increasing the hydraulic pressure at the opposite wheel brakes, including the wheel brake at which a relatively low hydraulic pressure is to be set, while maintaining the hydraulic pressure difference by transferring hydraulic fluid from the hydraulic pressure generator via the first slip regulating valve devices to the opposite wheel brakes.08-15-2013
303112000 Torque sensing 2
20100001578Hydraulic Brake Comprising a Safety Function - A braking device for braking a moving mass includes a movably guided coupling member for pressing a brake lining against a braking surface, a brake cylinder, filled with a hydraulic liquid, a brake piston which is movable inside the brake cylinder and which is connected to the coupling member. At least one hydraulic line can be connected to the brake cylinder. The device ensures the moving masses to be reliably decelerated. For that purpose, a fluidic-mechanical safety brake device is used to connect the brake cylinder to the one or more hydraulic lines.01-07-2010
20080238187Hydrostatic drive system with variable charge pump - A hydraulic system is provided having a reservoir configured to hold a supply of fluid. The hydraulic system also has a variable displacement pump configured to supply charge fluid and pilot control fluid to the hydraulic system. In addition, the hydraulic system has a closed-loop portion configured to receive charge fluid from the variable displacement pump and drive a mechanism. The hydraulic system further has a pilot fluid supply portion configured to direct pilot control fluid from the variable displacement pump to closed-loop portion.10-02-2008
303151000 Traction-motor vehicle 2
20100127562Braking Controller - To provide a braking controller having a high control accuracy over the required total braking force, enabling smooth braking, and capable of increasing the amount of regeneration while ensuring traveling stability, when used in a vehicle whose front wheels and rear wheels are asymmetrical with regard to regeneration.05-27-2010
20100026085BRAKE SYSTEM FOR AUTOMOTIVE VEHICLES - The said brake system for automotive vehicles of the present invention includes an energy-supplying device and a control device, wherein, further includes a wear-resistant component and a linkage component, when the vehicle is braked, the wear-resistant component is attached to a wheel and contacts with the ground, the linkage component is connected to the wear-resistant component and rotates with a shaft outside the wheel fixed to the frame. Under the control of the control device, the energy-supplying device rotates with the shaft outside the wheel, and the brake force is acted on the wheel through the linkage component and the wear-resistant component. Its energy-supplying device may include an elastic component and can turn the braking kinetic energy into elastic potential energy, and when the brake pedal is released, the elastic potential energy is turned into kinetic energy again. The present invention is different from the former design ideas, it can effectively improve the safety of the vehicles as well as save energy, and it is a great innovation in brake field. It can be used in automotive vehicles, such as electric bicycles, motorcycles, automobiles and so on.02-04-2010
303199000 Electric control circuit detail 2
20130033098Electronic Control Unit - In an electronic control unit having a metallic control block in which a plurality of control equipments are installed, a metallic cover member fitted onto the metallic control block, and an electronic control mechanism retained between the control block and the cover member to drive the control equipments, the electronic control mechanism includes: a bus bar constituent made of a resin material and having a power electronic circuit to drive the control equipments; and a print board to control the drive of the control equipments via the bus bar constituent, the print board on which a plurality of electronic parts are mounted being fixed onto the bus bar constituent by means of a metallic fixture section and an electrically conducting section being disposed to electrically conduct the control block to the cover member to provide the same electric potential for both of the cover member and the control block.02-07-2013
20090189441Distributed electrical/electronic architectures for brake-by-wire brake systems - A brake system including a communication bus, a sensor including an integral star coupler, the star coupler being in communication with the communication bus, wherein the sensor generates a sensor signal, a first electronic control unit directly connected to the sensor to directly receive the sensor signal, the first electronic control unit being in communication with the communication bus, and a second electronic control unit in communication with the communication bus, wherein the second electronic control unit receives the sensor signal over the communication bus by way of the star coupler.07-30-2009
303167000 Brake force or pressure determined from speed sensors 2
20090273231METHOD AND CONTROL DEVICE FOR STOPPING A MOTOR VEHICLE WITHOUT JOLTING - A method of stopping a motor vehicle without jolting is described, which is characterized in that a sum of the hydraulic fluid pressures generated by a foot-force-actuable brake system and acting upon the braking devices of the motor vehicle during the stopping operation is reduced in a driver-independent manner by 30% to 70% in dependence upon a variable that is related to the vehicle velocity.11-05-2009
20080303342Work Vehicle Control Device - The present invention includes a hydraulic brake device 12-11-2008
303137000 Motorcycle 2
20110043031BRAKE CONTROL DEVICE FOR MOTORCYCLE - To prevent deterioration of sports driving performance due to the actuation of an ABS in a front-wheel and rear-wheel interlocking brake system of a brake-by-wire system. A brake interlock determining portion starts a front-wheel brake when input hydraulic pressure by a brake operation (pedal operation) on a rear-wheel becomes equal to or greater than an interlocking brake starting pressure value. A threshold selecting switch allows switching of the interlocking brake starting pressure value between when the ABS is active and when the ABS is inactive. When the ABS is active, a lower pressure value is selected as the interlocking brake starting pressure value. When the ABS is inactive, an upper pressure value is selected as the interlocking brake starting pressure value.02-24-2011
20110095599BRAKE CONTROL SYSTEM OF MOTORCYCLE - A brake control system of a motorcycle is provided which can suppress a malfunction of an anti-lock braking system applied to a rear wheel which would be caused by an abnormal speed difference between the front and rear wheels. A threshold value for a skid rate for the rear wheel is kept to a second skid rate threshold value until a time when a predetermined condition is established. The second skid rate threshold value is larger than a first skid rate threshold value that is usually employed.04-28-2011
303149000 Split coefficient of friction (mu) 2
20130076117VEHICLE BRAKE FLUID PRESSURE CONTROL APPARATUS - A vehicle brake fluid pressure control apparatus controls operations of a fluid pressure adjusting unit capable of performing adjustment of individually increasing and decreasing brake fluid pressures acting respectively on wheel brakes for front wheels and wheel brakes for rear wheels to be within allowable differential pressures allowable between the brake fluid pressures of the wheel brakes for the left and right coaxial front wheels and the left and right coaxial rear wheels. In the apparatus, a fluid pressure acquiring device acquires a lock fluid pressure of a wheel brake of a wheel coaxial with a wheel being a control target, the lock fluid pressure being a fluid pressure at which pressure decrease by an anti-lock brake control is started. An allowable differential pressure setting device sets the allowable differential pressures matching a road surface friction coefficient on the basis of at least the lock fluid pressure obtained by the fluid pressure acquiring device. The allowable differential pressures stably matching a friction coefficient of a road surface can be thereby obtained.03-28-2013
20130076116VEHICLE BRAKE FLUID PRESSURE CONTROL APPARATUS - A vehicle brake fluid pressure control apparatus controls operations of a fluid pressure adjusting unit capable of performing adjustment of individually increasing and decreasing brake fluid pressures acting respectively on wheel brakes for front wheels and wheel brakes for rear wheels to be within allowable differential pressures allowable between the brake fluid pressures of the wheel brakes for the left and right coaxial front wheels and the left and right coaxial rear wheels. In the apparatus, estimated vehicle body deceleration calculator calculates an estimated vehicle body deceleration of a vehicle and allowable differential pressure setting device sets the allowable differential pressures matching a road surface friction coefficient based on the estimated vehicle body deceleration calculated by the estimated vehicle body deceleration calculator. This enables accurate judgment of a road surface having a high friction coefficient and setting of sufficiently large allowable differential pressures.03-28-2013
303163000 Slip ratio 1
20090021072VEHICLE BRAKE HYDRAULIC PRESSURE CONTROL APPARATUS - A the control unit 01-22-2009
303177000 Sensing jerk, acceleration, or deceleration 1
20100019567SELF-ENERGIZING HYDRAULIC BRAKE - A device for decelerating or braking a moving mass includes a movably guided coupling member for pressing a brake lining against a braking surface and a brake actuator, filled with hydraulic liquid and connected to the coupling member, for generating a pressure force that can be passed into the brake lining through the coupling member. The brake lining is connected to a pressure transducer that can be fastened on a frame of the mass to be decelerated or braked through a connecting device. The pressure transducer has a hydraulic liquid-filled supporting cylinder and a supporting piston interacting therewith. The supporting cylinder communicates with a brake cylinder through hydraulic lines. This allows an improved adjustment of deceleration or braking. For this purpose, a regulating device adjusts the brake force depending on a predetermined theoretical value.01-28-2010
303168000 Wheel generated pulse signal control (speed sensor) 1
20100078991PERFORMANCE-OPTIMIZED SAFETY BRAKE - A brake device for braking a vehicle has a brake surface which is rotationally fixedly connected to a wheel axle of the vehicle, a brake lining which can be pressed with a braking force against the brake surface and an actuating element coupled to a control unit, for generating the braking force. The control unit is connected to a speed sensor for measuring a speed of the vehicle and is set up to adjust the braking force in dependence on the speed. The brake device has as high a braking force as possible which is introduced into the brake surfaces. The control unit is coupled to the actuating element via a device for continuous pressure adjustment, so as to enable a continuous adaptation of the braking force to the present speed in each case. The braking force is advantageously adjusted inversely proportionally to the speed of the vehicle.04-01-2010
303162000 Current control of linear piston drive motor 1
20100194187Bicycle safety apparatus - A safety apparatus for a rider motivated wheeled vehicle, the safety apparatus including a remote control module and a remotely actuable braking apparatus. The remote control module includes an electronic control signal activation module, a manual signal activator coupled for activating the electronic control signal activation module for generating a control signal, and a power supply coupled for powering the electronic control signal activation module. The remotely actuable braking apparatus includes an auxiliary brake device that is positionable for engaging at least one wheel of a rider motivated wheeled vehicle; an electronic actuator module coupled to the auxiliary brake device and being responsive to a received control signal for operating the auxiliary brake device, and a power supply coupled for powering the actuator module.08-05-2010
303190000 Four-wheel drive or all wheel drive 1
20100007204VEHICLE STEERING AND BRAKING SYSTEM - The invention concerns a steering and braking system for a motor vehicle which has wheels on opposite sides thereof. Each wheel has a brake unit that can be controlled by an operator actuating a brake device, such as a brake pedal. At least one of the brake units is controlled in response to a turning maneuver of the motor vehicle independent of the actuation of the brake pedal, so that a higher braking force is applied to an inside one of the brake units with respect to the curve than is applied to an outside one of the brake units with respect to the curve.01-14-2010
303154000 Multiple control signal with multiple threshold 1
20090115247Pressure modulator control - The invention relates to a brake system which comprises an actuating device (05-07-2009
303160000 Pressure or specific condition (e.g., deceleration) determines wheel speed instead of direct speed sensor 1
20100207447TRACTION CONTROL METHOD - A traction control method is provided for dynamically maintaining safe driving traction between a tire (08-19-2010
Entries
DocumentTitleDate
20100109429ALLEVIATION OF AIRCRAFT LANDING GEAR LOADING USING A BRAKE CONTROL SCHEME - An electric brake system for an aircraft employs a brake control process to alleviate high dynamic structural loading of the aircraft landing gear caused by braking maneuvers. The system obtains and processes real-time data—which may include the current aircraft speed, the current brake pedal deflection position, and the current brake pedal deflection rate—to determine how best to control the onset of the brakes. The braking control scheme delays the onset of the desired braking condition to reduce high dynamic loading and lurching of the aircraft.05-06-2010
20090206654METHOD OF MANAGING THE POWER SUPPLY TO A NON-REVERSIBLE ACTUATOR FOR A VEHICLE WHEEL BRAKE - The invention relates to a wheel brake for a vehicle, in particular for an aircraft, the brake comprising a support (08-20-2009

Patent applications in all subclasses SPEED-CONTROLLED