Abstract: A control unit in a vehicle for powering at least one electrical component in the vehicle has a first and a second electronic unit, each containing its own power supply, wherein the electrical component is arranged both in a circuit containing the power supply of the first electronic unit, and in a circuit containing the power supply of the second electronic unit and wherein both circuits contain an identical current path through the electrical component. The control unit may be part of a braking system of the vehicle, and the electrical components are, for example, coils of actuator valves of wheel brakes and/or current-carrying sensor components of wheel speed sensors.

Abstract: A hydraulic motor vehicle brake system is specified with a device for generating a hydraulic fluid pressure. The device comprises an electrically controllable actuator and a piston in a pressure chamber, which is movable by means of the electrically controllable actuator for changing a hydraulic fluid pressure in the pressure chamber. The brake system also comprises a wheel brake pressure control device with a reservoir for the storage of hydraulic fluid discharged from a motor vehicle wheel brake in a pressure reduction phase, wherein the reservoir is fluidically coupled to the pressure chamber.

Abstract: A brake system includes a brake command that is electronically transmittable to the brake system. It comprises a first and second electromechanical pressure generating units, that can implement the brake command and that are fluidically connected with one hydraulic brake circuit. Multiple actuator valves are assigned respectively to one brake actuator at a vehicle wheel and can either be pressurized or de-pressurized. Both pressure generating units are designed to supply sufficient brake pressure to actuate all brake actuators. During normal operation the first pressure generating unit supplies the requested brake pressure up to a normal maximal value. Additionally, potential peak brake pressures, that exceed the normal maximum value, are supplied by the second pressure generating unit.

Abstract: The invention relates to a signal-processing device (402) for a vehicle having an ABS unit (404) and multiple wheels, each of which is assigned a sensor (S1, S2, S3, S4) for wheel signal generation. The signal-processing device (402) is designed to detect (602) a failure of a wheel signal, to form (604) a substitute signal for the failed wheel signal using the wheel signal of at least one sensor assigned to a wheel that is not affected by the failure, and to supply (606) the substitute signal to the ABS unit (404). The invention also relates to an ABS system (400) having the signal-processing device (402) and an ABS unit (404), a vehicle having the ABS system (400), a signal-processing method for a vehicle having an ABS unit (404), a computer programme having computer code for carrying out the signal-processing method, as well as a control unit containing the computer programme.

Abstract: A method and device for a vehicle having wheels which are each assigned a sensor for generating wheel signals. The unit determines whether a wheel is affected by a failure of the corresponding wheel signal. The unit acquires wheel signals which are assigned to the wheels, and for a wheel affected by a wheel signal failure, the corresponding wheel signal is acquired in the form of a substitute signal. The unit calculates a target brake pressure for a wheel at which an increase in brake pressure is necessary. The increase in brake pressure takes place in accordance with the wheel signal which is obtained for the wheel and in accordance with the determination as to whether the wheel is affected by a wheel signal failure. The unit further determines a slip threshold for an anti-lock brake control operation applied to the wheel affected by the wheel signal failure.

Abstract: A system for a vehicle for controlling/adjusting the wheel behaviour of at least one vehicle wheel comprises at least one unit for determining the wheel vertical force of at least two vehicle wheels which are mounted on the same axle of the vehicle. The system is adapted to determine for each of the at least two vehicle wheels at least one parameter indicative of the wheel behaviour. The system is further adapted to determine, on the basis of the wheel vertical forces determined by the unit for determining the wheel vertical force for the at least two vehicle wheels, at least the vehicle wheel with the higher wheel vertical force. The system is further adapted to set the at least one parameter indicative of the wheel behaviour determined for the at least one vehicle wheel with the higher wheel vertical force as the target value for the vehicle wheel with a lower wheel vertical force.

Abstract: A hydraulic motor vehicle brake system is specified with a device for generating a hydraulic fluid pressure. The device comprises an electrically controllable actuator and a piston in a pressure chamber, which is movable by means of the electrically controllable actuator for changing a hydraulic fluid pressure in the pressure chamber. The brake system also comprises a wheel brake pressure control device with a reservoir for the storage of hydraulic fluid discharged from a motor vehicle wheel brake in a pressure reduction phase, wherein the reservoir is fluidically coupled to the pressure chamber.

Abstract: A motor vehicle brake system is specified. The brake system comprises a driving dynamics regulation system, which is designed to carry out a wheel-specific regulating intervention on each of a plurality of vehicle wheels, and an electrically controllable actuator, which is designed to generate or boost a service brake force. The brake system further comprises a control, which is designed, in the event of an identified loss of function of the driving dynamics regulation system, to select one of at least two vehicle wheels on which a regulating intervention by the driving dynamics regulation system would be required and to electrically control the actuator on the basis of a regulating intervention determined for the selected vehicle wheel.

Abstract: A method and device for a vehicle having wheels which are each assigned a sensor for generating wheel signals. The unit determines whether a wheel is affected by a failure of the corresponding wheel signal. The unit acquires wheel signals which are assigned to the wheels, and for a wheel affected by a wheel signal failure, the corresponding wheel signal is acquired in the form of a substitute signal. The unit calculates a target brake pressure for a wheel at which an increase in brake pressure is necessary. The increase in brake pressure takes place in accordance with the wheel signal which is obtained for the wheel and in accordance with the determination as to whether the wheel is affected by a wheel signal failure. The unit further determines a slip threshold for an anti-lock brake control operation applied to the wheel affected by the wheel signal failure.

Abstract: The invention relates to a signal-processing device (402) for a vehicle having an ABS unit (404) and multiple wheels, each of which is assigned a sensor (S1, S2, S3, S4) for wheel signal generation. The signal-processing device (402) is designed to detect (602) a failure of a wheel signal, to form (604) a substitute signal for the failed wheel signal using the wheel signal of at least one sensor assigned to a wheel that is not affected by the failure, and to supply (606) the substitute signal to the ABS unit (404). The invention also relates to an ABS system (400) having the signal-processing device (402) and an ABS unit (404), a vehicle having the ABS system (400), a signal-processing method for a vehicle having an ABS unit (404), a computer programme having computer code for carrying out the signal-processing method, as well as a control unit containing the computer programme.

Abstract: A device for wheel slip control on a motor vehicle having at least one front axle and at least one rear axle is specified, wherein the front axle is assigned at least one front actuator for influencing at least one linear front wheel speed, and the rear axle is assigned at least one rear actuator for influencing at least one linear rear wheel speed. The device comprises at least one interface, which is designed to receive the following parameters: at least one first parameter indicating the at least one linear front wheel speed; at least one second parameter indicating the at least one linear rear wheel speed; and at least one third parameter indicating a vehicle speed, wherein the at least one third parameter is different from the at least one first parameter and the at least one second parameter.

Abstract: An electrohydraulic vehicle brake system includes an electromechanical actuator for actuating at least one hydraulic piston to build hydraulic pressure at wheel brakes. The brake system provides a set of electrically activatable valve arrangements having a first valve arrangement between a cylinder accommodating the at least one hydraulic piston and each of the wheel brakes, and at least one second valve arrangement between a receptacle device for hydraulic fluid and at least one of the wheel brakes. The second valve arrangement is provided in parallel with the first valve arrangement which is associated with the same wheel brake as the second valve arrangement. A control device or system activates the first valve arrangements and the electromechanical actuator, in order to build up a hydraulic pressure at at least one of the wheel brakes and via the opened first valve arrangement associated with that wheel brake and to reduce a built-up hydraulic pressure via the opened first valve arrangement.

Abstract: An electrohydraulic brake system includes an electromechanical actuator for actuating at least one hydraulic piston to provide a hydraulic pressure at one or more of a plurality of wheel brakes. The brake system further includes electrically activatable valve arrangements having a first valve arrangement between a cylinder accommodating the at least one hydraulic piston and each of the plurality of wheel brakes, and at least one second valve arrangement. The second valve arrangement is provided between a receptacle device for hydraulic fluid and at least one of the wheel brakes. The second valve arrangement is provided in parallel with the first valve arrangement associated with the same wheel brake as the second valve arrangement. The brake system also includes a control device or system that opens one of the first valve arrangements and the second valve arrangement connected in parallel therewith, in order to release a hydraulic pressure built up in the cylinder.

Abstract: An electrohydraulic vehicle brake system includes an electromechanical actuator for actuating at least one hydraulic piston to build hydraulic pressure at wheel brakes. The brake system provides a set of electrically activatable valve arrangements having a first valve arrangement between a cylinder accommodating the at least one hydraulic piston and each of the wheel brakes, and at least one second valve arrangement between a receptacle device for hydraulic fluid and at least one of the wheel brakes. The second valve arrangement is provided in parallel with the first valve arrangement which is associated with the same wheel brake as the second valve arrangement. A control device or system activates the first valve arrangements and the electromechanical actuator, in order to build up a hydraulic pressure at at least one of the wheel brakes and via the opened first valve arrangement associated with that wheel brake and to reduce a built-up hydraulic pressure via the opened first valve arrangement.

Abstract: An electrohydraulic brake system includes an electromechanical actuator for actuating at least one hydraulic piston to provide a hydraulic pressure at one or more of a plurality of wheel brakes. The brake system further includes electrically activatable valve arrangements having a first valve arrangement between a cylinder accommodating the at least one hydraulic piston and each of the plurality of wheel brakes, and at least one second valve arrangement. The second valve arrangement is provided between a receptacle device for hydraulic fluid and at least one of the wheel brakes. The second valve arrangement is provided in parallel with the first valve arrangement associated with the same wheel brake as the second valve arrangement. The brake system also includes a control device or system that opens one of the first valve arrangements and the second valve arrangement connected in parallel therewith, in order to release a hydraulic pressure built up in the cylinder.