Vibration actuator in the steering wheel
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2017 BMW X3, 2016 BMW X3, 2015 BMW X3, 2014 BMW X3, and 2013 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
The vibration actuator is fitted in the spoke of the steering wheel. The vibration actuator has the task of causing the steering wheel to vibrate. The driver assistance systems 'lane departure warning' and 'lane change warning' use this vibration to warn the driver regarding dangerous situations.
The steering wheel module also housed inside the steering wheel activates the vibration actuator. The request for activation of the vibration actuator is sent by the Integrated Chassis Management (ICM) as follows: via FlexRay to the steering column switch cluster (SZL). The SZL forwards this request across the LIN bus to the steering wheel module.
| Item | Explanation |
|---|---|
| 1 | Electronic steering wheel module |
| 2 | Vibration actuator |