Vibration actuator

The control unit for camera-based driver assistance systems (KAFAS) requests activation of the vibration actuator via the PT-CAN. The central gateway module (ZGM) implements the request signal on the FlexRay. The Integrated Chassis Management (ICM) is a bus user on the FlexRay. The ICM coordinates activation of the vibration actuator.

The steering wheel module evaluates the request signal. The steering wheel electronics activate the vibration actuator and monitor its function. The steering-column switch cluster (SZL) provides notification of a defect in the vibration actuator or steering wheel electronics across the FlexRay.

Fig 1: Identifying Electronic Steering Wheel Module And Vibration Actuator

Courtesy of BMW OF NORTH AMERICA, INC.