Knorr-Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Zf Friedrichshafen Ag

Michael Rimpel

Wolfgang Gscheidle

Christoph Huber

Markus Eissner

Klaus Haefele

Christian Kraemer

Matthias Roth

Dieter Benad

Manfred Vetter

Christian Dittmar

Klaus HÄFELE

A vehicle brake system device is provided. The vehicle brake system device includes having a signal input apparatus for inputting request signals from a driver of the vehicle which includes a sensor device which gradually detects a degree of operation of a driver-operated operating element between a position which represents non-operation and a position which represents maximum operation, and generates an operating signal which represents this degree of operation. The signal input apparatus also includes an evaluation electronics system into which the sensor device operating signal is introduced for evaluation purposes. In a switched-off state of a vehicle ignition system the sensor device and/or the evaluation electronics system cyclically assume either a standby mode with reduced electrical energy consumption from an electrical energy source in comparison to an operating mode which prevails in the switched-on state of the vehicle ignition system, the reduced energy consumption is an energy consumption level insufficient to ensure operation of the sensor device and/or the evaluation electronics system for detecting and evaluating operation of the operating element as intended, or assume an energy-saving operating mode which ensures operation of the sensor device and/or of the evaluation electronics system to detect and evaluate operation of the operating element.

Vehicle device with power-saving operation of a signal input apparatus

A circuit arrangement and method for redundantly supplying current to a downstream load are provided. The circuit arrangement includes a first current path including a first switch element to which a first voltage is applied on the input side, a second current path including a second switch element to which a second input voltage is applied on the input side, a first control device which is connected to the first current path and used to control the first switch element, a second control device which is connected to the second current path and used to control the second switch element, and a common output terminal of the first and second current paths, from which a load supply voltage is emitted. In a normal operating state, the first control device holds the first switch element in a let-through state and the second control device holds the second switch element in a let-through state, and in an abnormal operating state, depending on electrical properties of the first current path or the second current path, the control device which is located in the current path having weaker electrical properties transfers the switch element in the current path into a blocking state.

Redundant current supply with diagnostic capability and a suppressor

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Schwieberdingen, Germany

Michael Rimpel