Activation Of Stepper Motor Controllers

WARNING: This page does not describe the selected car, but rather 46 other vehicles, including the 2008 BMW M5, 2008 BMW 650i, 2007 BMW Z4, 2007 BMW M6, and 2007 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

The control unit for adaptive headlights sends the stepper motor controllers (SMC) the nominal values for the positioner modules (position of positioner modules and speed of movement). The control unit for adaptive headlights calculates the nominal values using the following signals:

Road speed
Steering angle (at speeds up to 50 km/h, depending on programming)
Yaw rate (50 km/h upwards, see STEERING ANGLE SENSOR AND DSC SENSOR .