For operation of a hydraulic power vehicle braking system for autonomous driving, a brake pressure is generated using a second power brake pressure generator if, after a predefined first time span, no brake pressure or insufficient brake pressure has been generated using a first power brake pressure generator. The generation of the brake pressure using the second power brake pressure generator is aborted if, within a second time span, which is longer than the first time span, no error message is present from the first power brake pressure generator.

An apparatus for generating non-electric control signals for a brake system, which has a first supply source, including: at least one interface configured to be connected to a pressure accumulator; and at least one interface to output the control signals; in which the apparatus is configured to be supplied via a second supply source. Also described are a related module and an electronic brake system.

An apparatus for generating non-electric control signals for a brake system, which has a first supply source, including: at least one interface configured to be connected to a pressure accumulator; and at least one interface to output the control signals; in which the apparatus is configured to be supplied via a second supply source. Also described are a related module and an electronic brake system.

A control circuit, is disclosed, which is developed and intended for use in a motor vehicle. The control circuit comprises a first circuit portion, which is developed and intended to detect an error state of a control module and/or supply source, such as a voltage supply, of a drive arrangement, for example a drive arrangement of a brake system of the motor vehicle, and/or an electric drive of the drive arrangement, and is developed and intended to cause a short-circuit of the electric drive of the drive arrangement if an error state has been detected. A control method is also disclosed, for operating a brake system of a motor vehicle, as well as a computer program and a control unit or system having multiple control units.

A control circuit, is disclosed, which is developed and intended for use in a motor vehicle. The control circuit comprises a first circuit portion, which is developed and intended to detect an error state of a control module and/or supply source, such as a voltage supply, of a drive arrangement, for example a drive arrangement of a brake system of the motor vehicle, and/or an electric drive of the drive arrangement, and is developed and intended to cause a short-circuit of the electric drive of the drive arrangement if an error state has been detected. A control method is also disclosed, for operating a brake system of a motor vehicle, as well as a computer program and a control unit or system having multiple control units.

An electronic mechanical brake system and a vehicle. The electronic mechanical brake system includes a brake pedal, an electronic brake mechanism, a mechanical brake mechanism, a brake, and a switch mechanism with a first state and a second state. The electronic brake mechanism includes a controller and an electronic signal sensor. The controller, the electronic signal sensor, and the brake are electrically connected. When the switch mechanism is in the first state, the electronic signal sensor is configured to receive a braking signal of the brake pedal and transmit the braking signal to the controller. The controller controls the brake to brake based on the braking signal. The electronic mechanical brake system can improve driving safety. In addition, reliability of the mechanical brake system is high, and costs are low.

An electronic mechanical brake system and a vehicle. The electronic mechanical brake system includes a brake pedal, an electronic brake mechanism, a mechanical brake mechanism, a brake, and a switch mechanism with a first state and a second state. The electronic brake mechanism includes a controller and an electronic signal sensor. The controller, the electronic signal sensor, and the brake are electrically connected. When the switch mechanism is in the first state, the electronic signal sensor is configured to receive a braking signal of the brake pedal and transmit the braking signal to the controller. The controller controls the brake to brake based on the braking signal. The electronic mechanical brake system can improve driving safety. In addition, reliability of the mechanical brake system is high, and costs are low.

A method for controlling the operation of a hydraulic braking system of a vehicle and in particular a vehicle drivable using muscle power and/or—in particular additionally—using motor power, an electric bicycle, e-bike, pedelec, or the like. In the method, it is checked whether a discharge condition for discharging an accumulator of the braking system is met. If the discharge condition is met, initially a controllable inlet valve in a primary circuit of the braking system is set into a partially closed state over a predefined duty cycle, in particular of 10%, and/or for a predefined time span and then an outlet valve of the accumulator is opened for a predefined time span—continuously or in intervals—so that brake fluid is discharged from the accumulator via the outlet valve, the primary circuit, and the inlet valve into a reservoir of a master cylinder of the primary circuit.

A brake control unit (50) is provided to drive a brake actuator. The brake control unit comprises a primary control branch (510) with a primary inverter (512) and a primary EMI-filter (517) and a secondary control branch (520) with a secondary inverter (522) and a secondary EMI-filter (527). The primary control branch is configured to provide drive signals (D.sub.10) to the brake actuator in a normal operational mode. The secondary control branch (510) is configured to provide drive signals to the brake actuator in the at least a second operational mode. During the first, normal operational mode, both the primary EMI-filter and the secondary EMI-filter are coupled with their input to the power source. Therewith an improved reduction of conducted electromagnetic interference is achieved.

A brake control unit (50) is provided to drive a brake actuator. The brake control unit comprises a primary control branch (510) with a primary inverter (512) and a primary EMI-filter (517) and a secondary control branch (520) with a secondary inverter (522) and a secondary EMI-filter (527). The primary control branch is configured to provide drive signals (D.sub.10) to the brake actuator in a normal operational mode. The secondary control branch (510) is configured to provide drive signals to the brake actuator in the at least a second operational mode. During the first, normal operational mode, both the primary EMI-filter and the secondary EMI-filter are coupled with their input to the power source. Therewith an improved reduction of conducted electromagnetic interference is achieved.