Robert Boschgmbh

Frank Baehrle-Miller

Dieter Blattert

Tobias Putzer

Edith Mannherz

Helmut Wolff

Hubertus Wienken

Andreas Englert

Lars Roters

Peter Blessing

Simon Hauber

Peter Rebholz-Goldmann

Steffen Zechmeister

Ullrich Sussek

Christian Meister

Matthieu Weinum

Benjamin Heer

Wolfgang Schuller

Edgar Kurz

Matthias Schanzenbach

Klaus Landesfeind

Karl-Josef Weiss

Toni Frenzel

Norbert Wolfgang Kearney

Oliver Leibfried

Burkhard Iske

Frank Schneider

Bernd Stoehr

Joerg Haffelder

Guenther Hertlein

Christian Jelenowski

Klaus-Dieter Nijakowski

Mike Huff

Ulrike Schaefer

Joseph J Anderson

Vitaliy Bograd

Simon Fleischer

Christoph Brand

Julia Chen

Zhizhong Wang

Fabian Hempert

Halebeedu Prasanna Madhu

Vivek Parashivamurthy

Martin Holder

Matthias Engelmann

Ulrike Mueller

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 control method for moving an electromechanical parking brake, according to which method an actuator of the parking brake is moved by actuation by means of an actuator-control unit, wherein a writable, non-volatile memory unit is provided in which position data concerning the current actuator position of the actuator is stored so as to be readable and writable, and according to which method, when a write error occurs while writing the position data to the memory unit, the actuation of the actuator for moving said actuator is continued, and, when the write error is detected, a synchronization process is carried out independently of the actuation of the actuator so that, upon completion of this synchronization process, the position data stored in the memory unit correctly represents the actuator position of the actuator.

Control method for moving an electromechanical parking brake

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.

Method for operating a brake system of a motor vehicle

A drivetrain for a vehicle includes a drive motor, an axle differential, and a friction brake. The drive motor is configured to drive the axle differential. The friction brake is positioned in a transmission path between the drive motor and the axle differential, and is configured to generate a braking torque.

Drivetrain for a vehicle

A method for verifying the parking brake force in a vehicle includes comparing a travel of a brake booster with a reference travel. The method further includes producing an error signal in case of a predetermined deviation between the travel of the brake booster and the reference travel. The vehicle includes a hydraulic vehicle brake with a brake booster and an electromechanical brake mechanism with an electric brake motor for producing a braking force to displace a brake piston.

Method for verifying the parking brake force in a vehicle

A method for securing a motor vehicle with at least one wheel brake during an automated driving maneuver includes, in order to carry out the automated driving maneuver, setting a hydraulic pressure at the wheel brake in order to generate a defined braking force large enough to securely arrest the motor vehicle during the execution of the automated driving maneuver. The method further includes keeping the hydraulic pressure which is set at the wheel brake essentially constant during the execution of the automated driving maneuver. The method may be implemented in a device.

Method and device for securing a motor vehicle during an automated driving manoeuvre

In a method for operating a motor vehicle during an autonomous parking process it is proposed that during the autonomous parking process a first braking torque is applied automatically to at least a first wheel, and a second braking torque is applied automatically to at least a second wheel, that a slip of one of the wheels is inferred from a comparison of the rotational speed of the first wheel to which the first braking torque is applied with the rotational speed of the second wheel to which the second braking torque is applied, and that if a variable characterizing the slip reaches or exceeds a limiting value, an action is automatically triggered.

Method for operating a motor vehicle during an autonomous parking process, computer program, electrical storage medium and open- loop and closed-loop control device for a motor vehicle

A method for operating an electric motor for an electric braking device, in particular for an electric parking brake of a vehicle, in particular a motor vehicle, in which the braking device can be put into a first operational state by operation of the electric motor in a first direction of rotation and into a second operational state by operation of the electric motor in a second direction of rotation different from the first direction of rotation, includes determining a quantity which characterizes an internal resistance of the electric motor, comparing the first quantity with a predeterminable first threshold value, controlling the electric motor for a predeterminable first control duration according to the direction of rotation which corresponds to a current operational state of the braking device when the result of the comparison is that the first quantity exceeds the first threshold value.

Method and apparatus for operating an electric motor for an electric braking device

A method for operating a parking brake system includes establishing a parking brake request for a first automated parking brake constructed on a first wheel located on a first side of an axle of a motor vehicle, producing a braking force at the first wheel by activating, in response to the establishing of the parking brake request, the first automated parking brake, and activating a compensation device connecting the first wheel and a second wheel located on a second side of the axle to apply a braking force to the second wheel via the first wheel.

Method and device for operating a parking brake system

A braking system for a vehicle includes a hydraulic vehicle brake with an electric actuator and an electromechanical braking device. The braking system further includes a locking mechanism configured to lock the electric actuator.

Braking system for a vehicle having a hydraulic vehicle brake and an electromechanical braking device

In a method for activating and deactivating a control unit which can be used to control an electrically activatable assembly, the control unit is switched between a waking state, a sleep state and a deactivated state, wherein in the sleep state, the control device is disabled but can be transferred into the waking state by means of a sensor signal.

Method for activation and deactivation of a control device

Method for holding a vehicle in the stationary state, which has the following steps: (a) if the vehicle has an automatic transmission, engaging a parking lock, or if the vehicle has a manual transmission, engaging a gear, (b) at least temporarily, automatically carrying out vehicle movement monitoring by means of a sensing device; and (c) automatically activating a brake device of the vehicle in order to apply a braking force if the sensing device signals a vehicle movement.

Method for holding a vehicle in the stationary state, open-loop and closed-loop control device for a brake device of a vehicle and brake device of a vehicle

A hydraulic brake system for a vehicle includes a master brake cylinder, a hydraulic unit, and multiple wheel brakes. The hydraulic unit Ha at least one brake circuit for modulating the braking pressure in the wheel brakes. At least one wheel brake is paired with a bistable solenoid valve, which is looped into the corresponding fluid channel directly upstream of the paired wheel brake and which enables the braking pressure in the paired wheel brake to be modulated in a de-energized open position and locks the current braking pressure in the paired wheel brake in a de-energized closed position, wherein a volume equalization device which comprises a connectable accumulator opens into the corresponding fluid channel between the bistable solenoid valve and the paired wheel brake.

Hydraulic brake system for a vehicle, and corresponding operating method

A brake system control device for a vehicle that has a hydraulic vehicle brake and an electromechanical brake device with at least one electric brake motor includes a microcontroller for actuating at least one active brake component. The brake system control device further includes a system ASIC for detecting wheel revolution rate signals and a brake motor ASIC for actuating the electric brake motor of the electromechanical brake device. The brake motor ASIC includes wheel revolution rate signals that are configured to be detected and the microcontroller is connected to the system ASIC and the brake motor ASIC via communications interfaces.

Brake system control device for a vehicle

A method for operating a brake system of a motor vehicle includes actuating a first actuating device of the brake system, exerting an electromechanical braking force to decelerate the motor vehicle in an event of a fault in the hydraulic braking device and when the first actuating device is actuated, and generating the electromechanical braking force after a start of the actuation of the first actuating device for a minimum generation period and/or generating the electromechanical braking force after an end of the actuation of the first actuating device for an additional continued generation period. The brake system includes a hydraulic braking device, an electromechanical braking device, and a first actuating device, in particular a brake pedal.

Method for operating a brake system of a motor vehicle, and control device and brake system

Growing community of inventors

Schoenaich, Germany

Frank Baehrle-Miller