Robert Boschgmbh

Bayerische Motoren Werke Aktiengesellschaft

Bmw Ag

Juergen Binder

Ulrich Gottwick

Eberhardt Schunck

Michael Schubert

Anton Van Zanten

Juergen Hachtel

Eberhard Schoch

Hans-Georg Horst

Martin Pfau

Florian Oesterreicher

Rainer Altmann

Rainer Lauer

Michael-Raymond Meyer

Rodrigo Biurrun Sotelo

Hermann Winner

Dirk Hofmann

Karl-Heinz Willmann

Matthias Schueler

Andreas Kellner

Guenther Schmidt

Werner Urban

Frieder Keller

Matthias Schanzenbach

Peter Blessing

Gebhard Wuerth

Peter Schubert

Timo Jahnz

Rainer Saliger

Rainer Heinsohn

Jan-Michael Graehn

Jens Intorp

Eberhard Holl

Bernd Aupperle

Frank Baumann

Walter Schlagmueller

Dieter Schramm

Martin Scherrer

Andreas Kaessmann

Holger Hummel

Harald Beck

Arthur Schaefert

Gunter Wiedemann

Magnus Oppelland

Dalibor Kovac

Danilo Zimmermann

Markus Koban

A method for operating a fuel cell system of a motor vehicle includes the steps of: i) detecting whether a washing process of the motor vehicle in a wash facility for cleaning the exterior of the motor vehicle is taking place or is imminent and ii) reducing the supply of an oxidizing agent to a fuel cell stack of the fuel cell system when it has been detected that a washing process is taking place or is imminent.

Method for operating a fuel cell system of a motor vehicle, and motor vehicle

The invention relates to a method for assisting a driver of a motor vehicle, in particular of an electric vehicle, during a driving process for overcoming an obstacle which is close to the ground and has a slow speed. In this context, the method has the following steps: transmission (S) of a torque to the wheels which are to be driven in order to overcome the obstacle, detection (S) that the obstacle has been overcome, and automatic reduction in the torque and/or automatic generation (S) of a braking torque in order to decelerate the motor vehicle directly after the detection.

Method for assisting a driver of a motor vehicle

The invention relates to a safety device for a high-voltage system, having a coupling device which switchably couples high-voltage components of the high-voltage system to external components, and which is designed to electrically separate the high-voltage components from the external components depending on actuation of a safety switch, having a discharge circuit which is designed to electrically discharge the high-voltage components depending on actuation of the safety switch, and having a monitoring device which is designed to monitor electric parameters of the discharge circuit or of the high-voltage components, and to release the lock of a housing for the high-voltage components if at least one of the electric parameters of the discharge circuit or of the high-voltage components falls below a predetermined threshold value.

Safety device for a high-voltage system and method for safeguarding a high-voltage system

A method for monitoring a motor vehicle includes: monitoring whether a speed of the motor vehicle indicates a stopping condition of the motor vehicle; detecting whether at least one vehicle operating condition indicating an imminent unintentional acceleration of the vehicle exists; and triggering a fault response if (i) the vehicle is in the stopping condition and (ii) the at least one vehicle operating condition indicating an imminent unintentional acceleration of the vehicle exists.

Method and device for preventing unintentional acceleration of a motor vehicle

An acceleration-based method and device for the safety monitoring of a drive is provided. In the method a setpoint torque is calculated in a safety function as a function of the position of the accelerator pedal. An expected vehicle acceleration is determined, as a function of the setpoint torque, in the safety function. An actual vehicle acceleration is determined, preferably by an acceleration sensor. A fault situation may be detected by comparing the actual vehicle acceleration and the expected vehicle acceleration. A device, preferably included in the vehicle electronics, is configured to implement the acceleration-based method.

Acceleration-based safety monitoring of a drive of a motor vehicle

A fuel cell system has at least one fuel cell unit for generating electrical energy, a unit for storing or dispensing electrical energy, an electrical consumer for consuming electrical energy, a diagnostic unit for ascertaining a functional capability of the at least one fuel cell unit during a diagnosis phase, and a control unit for determining an electrical power generated at least during the diagnosis phase by the at least one fuel cell unit.

Fuel cell system with fuel cell unit having means for storing or dispensing electrical energy

An electrohydraulic brake system as well as a method and a device for controlling the electrohydraulic brake system, in which a hydraulic fluid can be injected from an accumulator into corresponding wheel brake cylinders by valve means, where the hydraulic fluid can be delivered to the accumulator by a pump, whereby means are provided for measuring the temperature of the electrohydraulic brake system, in particular the temperature of the hydraulic fluid, as well as means for taking into account the measured temperature for open- and closed-loop control of the electrohydraulic brake system.

Electrohydraulic brake system and methods for its control

A method and a device for controlling at least one valve, in response to a detected leak in the system including the valve. An activation signal is generated which opens the valve briefly for flushing purposes and closes it again, or moves the valve ball at great speed onto the valve seat.

Method and device for controlling at least one valve

A method and an apparatus for controlling a braking system, the control unit of which controls the wheel brakes receiving reference variables for control purposes. If these reference variables are not available, the control unit produces, on the basis of a predefined braking force distribution between the front and rear axles and in the context of an emergency mode, reference variables which it sets at the wheel brakes.

Method and apparatus for controlling a braking system

A method and a device for check-testing a braking system in which, before travel commences, a self-test of the braking system is performed. During the course of the self-test, the valve arrangements allocated to the wheel brakes and the pressure supply providing the brake pressure are driven in a predefined manner. A plurality of test phases are provided, after whose respective conclusions, a pressure level to be expected should be reached. Otherwise a secondary braking operation is initiated at least for the subsequent operating cycle of the vehicle.

Method and device for check-testing a braking system

Hydraulic brake system for a vehicle

The invention relates to a hydraulic motor vehicle power brake system having a hydraulic pump which is connected to a hydraulic reservoir as an external energy reservoir and is connected to wheel brake cylinders, wherein the wheel brake cylinders are preceded by inlet valves and are followed by outlet valves. To improve the adjustability of a desired brake pressure in the wheel brake cylinders and to cut costs, the inlet and outlet valves are identical as continuous pressure limiting solenoid valves or as continuous pressure differential solenoid valves.

Vehicle power brake system including a motor driven hydraulic pump

A method and an apparatus for controlling a braking system of a vehicle. The braking action is established or regulated at at least one wheel brake, by electrical structure, as a function of a driver's braking input. A capability for conventional action by the driver is cut off by a valve. A pressure medium is enclosed in a portion of the braking system. In at least one operating state in which an expansion in the volume of the enclosed medium may be expected, the valve is briefly opened in order to reduce the expansion in volume.

Method and apparatus for controlling a braking system of a vehicle

For the detection of undissolved gas in the brake system; hydraulic pressure is built up and at least one characteristic value for the pressure buildup such as the master cylinder pressure, the brake pedal distance, the drop in storage chamber pressure, etc., is checked to see if it exceeds a predetermined limit value. If this limit value is exceeded, it is assumed that there is an unacceptable amount of undissolved gas in the hydraulic component of the brake system.

Method and apparatus for testing the brake system of a vehicle

Electronic brake system with back-up control during central module

Growing community of inventors

Filderstadt-Plattenhardt, Germany

Juergen Binder