Abstract: A sensor assembly for use with a master cylinder is described. The master cylinder comprises an input-side activation element to which a signal transmitter element is coupled. The sensor module comprises a travel sensor for sensing travel carried out by the activation element, and a position sensor for sensing when a predefined position of the activation element is reached.

Abstract: The invention relates to a technique for operating an electrohydraulic motor vehicle brake system comprising a master cylinder (or any other cylinder-piston arrangement) that can be supplied with a hydraulic fluid from a reservoir, an electromechanical actuator for actuating a piston accommodated in the master cylinder, a wheel brake that can be coupled to the master cylinder, and a stop valve provided between the master cylinder and the wheel brake. According to an aspect of this technique, the method comprises the steps of: controlling the electromechanical actuator to build up hydraulic pressure on the wheel brake; controlling the stop valve to hold the hydraulic pressure already built up on the wheel brake; controlling the electromechanical actuator to take in hydraulic fluid from the reservoir while monitoring a time response of a pressure drop in the master cylinder associated with the take-in; and interrupting the take-in depending on a result of the monitoring.

Abstract: The invention relates to a technique for boosting the brake force of an electrohydraulic motor vehicle brake system in a mode in which, as a result of a mechanical push-through, an actuating force onto a brake pedal acts upon a master cylinder of the brake system. According to an aspect of this technique, the method comprises the steps of: determining a value of a first variable indicating a current deceleration of the vehicle; determining, based on the first variable, a value of a second variable indicating the actuating force; determining, based on the second variable, a required brake boost; and controlling an electromechanical actuator acting upon the master brake cylinder to obtain the required brake boost.

Abstract: The invention relates to an electrohydraulic motor vehicle brake system. The brake system comprises a master cylinder, an electromechanical actuator for actuating a piston, which is accommodated in the master cylinder, in a brake-by-wire (BBW) mode of the brake system, and a mechanical actuator, which can be actuated by means of a brake pedal, for actuating the piston in a push-through (PT) mode of the brake system. In the BBW mode, a gap having a defined gap length is present in a force transmission path between the brake pedal and the piston for decoupling the brake pedal from the piston. The brake system is configured such that in the BBW mode the gap length is dependent on a pedal travel of the brake pedal.

Abstract: The invention relates to a technique for operating an electrohydraulic motor vehicle brake system comprising a master cylinder, an electromechanical actuator for generating a hydraulic pressure at a plurality of wheel brakes and a set of electrically actuable valve arrangements. The set of valve arrangements comprises a first valve arrangement between the master cylinder and every wheel brake. The first valve arrangements can be controlled in the multiplex operation to generate, by means of the electromechanical actuator, the respective brake pressure intended for each of the wheel brakes. According to an aspect of this technique, the method comprises the steps of: generating a feedback current during the multiplex operation by operating an electric motor of the electromechanical actuator as a generator and supplying the feedback current to at least one electrical load.

Abstract: The invention relates to a technique for operating a regenerative electrohydraulic motor vehicle brake system comprising a master cylinder that can be supplied with a hydraulic fluid from a reservoir, an electromechanical actuator for actuating a piston accommodated in the master cylinder and a stop valve provided between the master cylinder and the reservoir. According to an aspect of this technique, the method comprises the step of controlling the electromechanical actuator when the stop valve is closed to generate a hydraulic pressure on a wheel brake that is fluidically connected to the master cylinder. The method further comprises the step of activating a regenerative brake operation and of controlling the stop valve to open, the master cylinder remaining fluidically connected to the wheel brake and the electromechanical actuator being controlled to maintain the hydraulic pressure on the wheel brake at least to some extent.

Abstract: 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.

Abstract: A hydraulic brake system for a land vehicle includes a brake pedal; a wheel brake; and a master brake cylinder connected to the brake pedal by a brake booster and a pump. The outlet of the pump is connected to the wheel brake by a supply line and the inlet is connected to the wheel brake by a return line. The pump moves hydraulic fluid to the wheel brake. A temporary store is connected to the inlet of the pump and the wheel brake by the return line. A pressure reduction valve, arranged in the return line of the wheel brake, has a throttling effect in the open state. A control unit compensates for the difference between a total braking torque specified by the brake pedal and a generating braking torque provided by an electric machine by setting the hydraulic braking torque during a regenerative braking process of the vehicle.

Abstract: A vehicle brake system having a hydraulically actuatable disc brake device which has an electromechanical operating device for activating a parking brake function, wherein the vehicle brake system has a hydraulic circuit with a hydraulic pressure source and also has activatable hydraulic functional elements in order to hydraulically actuate the disc brake device in accordance with a service braking action by a driver or an automatic activation, wherein the vehicle brake system also has a control device in order to actuate the electromechanical operating device in accordance with a parking braking action by the driver or an automatic activation of the parking brake function.

Abstract: 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.

Abstract: A method for operating an electrically controllable brake system for a motor vehicle having at least one electrically actuated valve arrangement for setting a pressure difference between a second brake pressure and a first brake pressure, wherein in a first time interval a predetermined first pressure difference is set and an associated first power consumption value of the pump is identified; in a second time interval a predetermined second pressure difference is set and an associated second power consumption value of the pump is identified; a correction value is obtained from the first power consumption value and the second power consumption value; the correction value is taken into account for setting a set-point value for the pressure difference.

Abstract: An electrohydraulic motor vehicle brake system comprises a master cylinder, an electromechanical actuator for actuating a piston accommodated in the master cylinder, an accommodating device for at least temporarily accommodating hydraulic fluid from the master cylinder, and a set of electrically actuatable valve arrangements. The set of valve arrangements comprises a first valve arrangement between the master cylinder and every wheel brake of the plurality of wheel brakes and a second valve arrangement between the master cylinder and the accommodating device. The system further comprises a controller or a controller system which is designed to control at least one of the first valve arrangements and the second valve arrangement in a multiplex operation.

Abstract: A sensor module for use with a master cylinder of a brake system is described, wherein the master cylinder has an input-side activation element and an underpressure region for communicating with an underpressure brake booster. The sensor module comprises an underpressure sensor for detecting an underpressure in the underpressure region of the master cylinder as well as at least one further sensor for detecting a signal transmitter which is rigidly coupled to the activation element. The underpressure sensor and the at least one further sensor are accommodated in a housing of the sensor module. An opening in the housing permits communication between the underpressure sensor and the underpressure region of the master cylinder.

Abstract: A vehicle brake system having a hydraulically actuatable disc brake device which has an electromechanical operating device for activating a parking brake function, wherein the vehicle brake system has a hydraulic circuit with a hydraulic pressure source and also has activatable hydraulic functional elements in order to hydraulically actuate the disc brake device in accordance with a service braking action by a driver or an automatic activation, wherein the vehicle brake system also has a control device in order to actuate the electromechanical operating device in accordance with a parking braking action by the driver or an automatic activation of the parking brake function.

Abstract: A sensor assembly for use with a master cylinder is described. The master cylinder comprises an input-side activation element to which a signal transmitter element is coupled. The sensor module comprises a travel sensor for sensing travel carried out by the activation element, and a position sensor for sensing when a predefined position of the activation element is reached.

Abstract: A device and method for a hydraulic brake system of a land vehicle in order to block a brake circuit of the brake system with regard to a supply of brake pressure generated by a driver, to establish a hydraulic connection between the output side of a wheel brake and the input side of a controllable pump and to generate a predetermined brake pressure at the input side of the wheel brake by the use of a pump.

Abstract: The invention relates to a hydraulic brake system and a method for controlling a hydraulic brake system for a land vehicle having a predetermined holding capacity for hydraulic fluid and at least one wheel brake. The invention is characterized by detecting if a current holding capacity of the brake system has increased in relation to the predetermined holding capacity and, if so, by feeding hydraulic fluid to the at least one wheel brake in a controlled manner and an amount corresponding at least to the increase in capacity.

Abstract: A method for operating an electrically controllable brake system for a motor vehicle having at least one electrically actuated valve arrangement for setting a pressure difference between a second brake pressure and a first brake pressure, wherein in a first time interval a predetermined first pressure difference is set and an associated first power consumption value of the pump is identified; in a second time interval a predetermined second pressure difference is set and an associated second power consumption value of the pump is identified; a correction value is obtained from the first power consumption value and the second power consumption value; the correction value is taken into account for setting a set-point value for the pressure difference.

Abstract: Hydraulic brake system and method for controlling a hydraulic brake system for a land craft, in which a quantity of hydraulic fluid delivered to wheel brakes during pressure build-up phases in antilock braking mode is limited so that substantially no hydraulic fluid thereof can flow to a master cylinder.

Abstract: 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.