Patent application number | Description | Published |
20090044614 | Method for Recognizing the Saturation Point of a Vacuum Brake Booster - A device for determining the saturation point of a vacuum brake booster having a vacuum chamber and a working chamber that are separated from one another by a membrane. The reaching of the saturation point can be recognized simply and precisely if the vacuum prevailing in the vacuum chamber is measured using a pressure sensor, and the output signal of the pressure sensor is evaluated by an electronic evaluation system that calculates the saturation point using a mathematical function, taking into account only the pressure prevailing in the vacuum chamber. | 02-19-2009 |
20100295362 | DEVICE AND METHOD FOR DETECTING A BRAKE OPERATION - A method for detecting the operation of a foot brake pedal of a motor vehicle brake system including a vacuum brake booster having a working chamber and a vacuum chamber. The operation of the brake pedal is able to be detected already during free travel if the pressure present in the working chamber and/or in the vacuum chamber is measured and the measured pressure or a pressure difference is evaluated. | 11-25-2010 |
20110266270 | METHOD FOR OPERATING AN HYDRAULIC BRAKE SYSTEM IN A MOTOVEHICLE - In a method for operating an hydraulic brake system in a vehicle, which has at least two electrically actuable hydraulic valves, the hydraulic valves are energized at a different current intensity at least intermittently in order to heat the hydraulic fluid during a heating period. | 11-03-2011 |
20120073922 | Method for controlling a brake system of a motor vehicle and a brake system for a motor vehicle - A brake system for a motor vehicle and a related method includes a hydraulic service brake system, having a brake booster and is operable via a brake operating element, an electric machine, operable as a generator to brake the motor vehicle, and an electromechanical braking device. A setpoint braking torque is determined as a function of a brake pedal travel. The hydraulic service brake system has an idle travel between the brake operating element and a master brake cylinder, in which no braking torque is generated by the vehicle brake system. In the range of the idle travel, the setpoint braking torque is generated by the generator and/or the electromechanical braking device, and a portion of the electromechanical braking device in the setpoint braking torque is modulated as a function of a portion of the generator in the setpoint braking torque so that variations of the generator portion are compensated. | 03-29-2012 |
20140048732 | MAGNETIC VALVE DEVICE - A magnetic valve device includes a valve receiving device and a valve insert of a magnetic valve which is received in the valve receiving device. A high pressure resistance is obtained in one of the modes of embodiment. The magnetic valve device includes either a pressure mechanism configured to press the valve insert against the valve receiving element or a sealing element arranged in a notch in the valve insert or a sealing element arranged between an axial filter and the valve insert. | 02-20-2014 |
20140084196 | ELECTROMAGNETICALLY ACTUATED VALVE - An electromagnetically actuated valve includes at least one sleeve and a magnet armature. A magnetic core is arranged in a stationary manner in the at least one sleeve. The magnet armature is configured to actuate a valve element and is axially movable. An elastically deformable spring element is clamped and retained between a core end face of the magnetic core facing the magnet armature and an armature end face of the magnet armature facing the magnetic core. The spring element forms at least one contact point in conjunction with the armature end face and the core end face. The contour of the spring element, the armature end face and/or the core end face are formed in the radial extent such that a radial position of the at least one contact point changes as a function of a distance of the armature end face from the core end face. | 03-27-2014 |
20140318910 | BRAKE SYSTEM FOR A VEHICLE AND METHOD FOR OPERATING A BRAKE SYSTEM OF A VEHICLE - A brake system is described for a vehicle having a master brake cylinder that is hydraulically connected to at least one wheel brake caliper, and having a fluid conveyor device by which brake fluid can be transferred into the at least one wheel brake caliper and out of the at least one wheel brake caliper, the fluid conveyor device including a pump motor that is controllable in two directions of rotation, the motor being capable of being controlled in such a way that brake fluid can optionally be pumped by the fluid conveyor device either out of a fluid storage device into the at least one wheel brake caliper or out of the at least one wheel brake caliper into the fluid storage device. In addition, also described is a method for operating a brake system of a vehicle. | 10-30-2014 |
20140327297 | BRAKE SYSTEM FOR A VEHICLE AND METHOD FOR OPERATING A BRAKE SYSTEM OF A VEHICLE - A brake system for a vehicle, including a brake master cylinder that is hydraulically connected to at least one wheel brake caliper; and a fluid delivery device by which brake fluid is transferable into the at least one wheel brake caliper, the fluid delivery device being embodied as a substantially uniformly delivering pump device by which brake fluid is pumpable out of a fluid reservoir device into the at least one wheel brake caliper. The fluid delivery device can be, a gear pump or a phase-shifted multi-piston pump. A method for operating a brake system of a vehicle is also described. | 11-06-2014 |
20150202989 | BRAKE CONTROL DEVICE FOR A VEHICLE AND METHOD FOR OPERATING AT LEAST ONE ELECTRIC DRIVE MOTOR FOR A VEHICLE - A brake control device is provided for a vehicle having an activation device, with the aid of which, at least under consideration of at least one brake demand signal provided by an on-board sensor and/or control device, at least one first control signal may be output to at least one electric drive motor of the vehicle, with which the at least one electric drive motor is controllable into a motor mode, in which a generator braking torque which is unequal to zero may be exerted on at least one wheel of the vehicle by the at least one electric drive motor, the at least one electric drive motor being controllable with the aid of the at least one first control signal into at least one overload operating mode as the motor mode, in which the generator braking torque which is unequal to zero may be exerted on the at least one wheel. A method is also provided for operating at least one electric drive motor for a vehicle. | 07-23-2015 |