Robert Boschgmbh

Benjamin Heer

Frank Baehrle-Miller

Joseph J Anderson

Fabian Hempert

Examples provide a system and method for controlled deceleration for parking a vehicle. The system includes a parking brake control device, a sensor configured to measure a speed of the vehicle and output a measured vehicle speed, a parking brake, a primary hydraulic system including a primary controller and a primary hydraulic pressure generator, and a secondary hydraulic system including a secondary controller and a secondary hydraulic pressure generator. The secondary controller is configured to determine whether the vehicle is travelling at a non-zero speed while the parking brake control device is actuated. In response to that determination, the secondary controller determines whether hydraulic braking via the primary hydraulic system is available. When hydraulic braking via the primary hydraulic system is not available, the secondary controller controls the secondary hydraulic pressure generator to generate hydraulic braking pressure.

Controlled deceleration for parking of a vehicle

A method is for operating a brake system of a motor vehicle. The brake system includes at least one service brake and a transmission device having an output rod, by way of which a braking force is transmitted to the at least one service brake. The brake system further includes at least one parking brake having a trigger device for activating the at least one parking brake. The method provides increased safety and simplified implementation by (i) using an adjustment travel of the output rod to ascertain a deceleration acting on the motor vehicle due to the at least one service brake, and (ii) activating the at least one parking brake, when the trigger device is actuated, when the motor vehicle is ascertained as being stationary, taking into consideration the deceleration.

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Backnang, Germany

Benjamin Heer