Device for controlling vehicle light beam

摘要

The device has a stepper motor acting as a drive motor for adjustment of the inclination of the headlamp. The motor is controlled according to a demanded inclination value. The step frequency of the motor is controlled according to the headlamp operating temp. being lower for lower temp. than for higher ones. The operating temp. of the headlamps is determined indirectly from the external temp. and/or the temp. of a component of the motor vehicle and/or the time for which the headlamps have been operating.