Volkswagen Ag

Conti Temic Microelectronic Gmbh

Alwin Becher

Edgar Bothe

Roger Pohlmann

Armin Tonn

Peter Bertelshofer

Volker Gärtner

Klaus Leipnitz

A method and a device for controlling a motor vehicle drive train determine the direction of rotation of the drive train by evaluating sensor signals of a first sensor unit on the output side of the drive train. The first sensor unit includes a sensor wheel fastened to a rotatable component on the output side of the drive train and two rotational speed sensors which are fixed with respect to a housing and are placed circumferentially next to one another. In order to speed up the determination of the direction of rotation, the sensor signal of a second sensor unit on the input side of the drive train is evaluated. The second sensor unit includes a sensor wheel that is fastened to a rotatable component on the input side of the drive train and a rotational speed sensor that is fixed with respect to the housing.

Method and device for controlling a motor vehicle drive train

A method for monitoring a system controlled by a processor utilizes an integrated monitoring unit independent of the processor but integrated together with the processor in an integrated circuit, as well as a watchdog unit for preventing measures that influence the system. The watchdog unit is cyclically reset by the integrated monitoring unit.

Method for operating a processor-controlled system

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Zirndorf, Germany

Alwin Becher