| 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 |
| 20130238207 | METHOD FOR AUTOMATICALLY BRAKING A VEHICLE, AND CONTROL UNIT IN WHICH THE METHOD IS EXECUTED - A method for automatically braking a vehicle using a hydraulic brake system, which includes a multi-stage valve situated between a master brake cylinder and the intake side of a hydraulic pump. To attenuate a pressure equalization process between a fluid volume on the side of the master brake cylinder and a suction line of the hydraulic pump, the control current for the valve is increased in ramp-shaped manner in order to first open a preliminary stage and then a main stage of the valve. | 09-12-2013 |
| 20140083088 | METHOD AND SYSTEM FOR COMPENSATION OF AN INSUFFICIENT PRESSURE BUILDUP IN THE BRAKING SYSTEM OF A VEHICLE - A method is described for compensation of an insufficient pressure buildup in the braking system of a vehicle in the event of a failure or malfunction of a brake booster for brake force support when an actuating element of the braking system is actuated, the compensation occurring with the aid of a unit for an additional pressure buildup in the braking system and triggering of this compensation occurring as a function of a position of the actuating element in its adjustment travel. An instantaneous position of the actuating element in the adjustment travel is ascertained continuously or periodically, and the triggering and the additional pressure build-up occur as a function of this ascertained instantaneous position. Also described is a corresponding compensating system. | 03-27-2014 |
| 20140306514 | BRAKING SYSTEM FOR A VEHICLE AND METHOD FOR OPERATING THE BRAKING SYSTEM - A braking system for a vehicle includes: a brake input element for an actuation to input a brake pressure signal by a driver; a brake master cylinder coupled to the brake input element and supplied with hydraulic fluid from a hydraulic fluid reservoir fluidically connected to the brake master cylinder; and a first brake circuit. The first brake circuit has: a switchover valve with controllable through flow rate for the hydraulic fluid; a pressure regulating valve with controllable through flow rate for the hydraulic fluid; a hydraulic pump for optionally building up an elevated hydraulic fluid pressure in the first brake circuit; at least one first wheel brake cylinder exerting a braking torque on a first vehicle wheel coupled to the wheel brake cylinder; and a first fluid line from the hydraulic fluid reservoir being fluidically connected to the pressure regulating valve and to the hydraulic pump. | 10-16-2014 |
| 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 |
| 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 |
| 20160075319 | CONTROL DEVICE FOR AT LEAST ONE ELECTRIC PARKING BRAKE OF A BRAKE SYSTEM OF A VEHICLE AND METHOD FOR OPERATING A BRAKE SYSTEM OF A VEHICLE HAVING A BRAKE BOOSTER AND AN ELECTRIC PARKING BRAKE - A control device for at least one electric parking brake of a vehicle brake system of a vehicle having a control instrument, to determine a setpoint variable regarding a setpoint braking torque to be generated with the parking brake and to output a control signal, the control instrument being configured to ascertain/detect, based on at least one provided signal, whether a brake booster is in at least one functionally limited or incapacitated state, and, if indicated, to determine the setpoint variable by considering at least one defined parameter regarding a requested total braking torque and to control the electric parking brake so that a corresponding actual braking torque is exertable with the parking brake. Also described is an electric parking brake for a vehicle brake system and to a vehicle brake system, and a method for operating a vehicle brake system having a brake booster and an electric parking brake. | 03-17-2016 |
