Wabco Gmbh & Co Ohg

Wabco Gmbh

Dirk Sandkühler

Karsten Breuer

Frank Zielke

Hartmut Kitterer

A collision warning system and method for a motor vehicle. A measuring device in the vehicle is provided for measuring the distance dx to a second vehicle traveling ahead, the distance signal being delivered to an evaluation device in the first vehicle. The evaluation device continuously calculates a deceleration a, which is applied by the vehicle after expiration of a driver reaction time Tin order that a remaining distance dxto the second vehicle traveling ahead can be maintained. If aexceeds an instantaneous deceleration that can be achieved by an adaptive cruise control ('ACC') system, a system limit warning is transmitted, prompting the vehicle driver to brake with additional appropriate force. If aexceeds an assumed vehicle deceleration that can be generated by braking on the part of the driver, a collision warning signal is transmitted independently of the ACC system.

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Werne, Germany

Dirk Sandkühler