Xenon Headlight Systems: LWR

On vehicles equipped with Xenon headlights systems, it is necessary to prevent the light beam from affecting oncoming traffic. The Headlight Beam Throw Control (LWR) system is used to adjust the headlights horizontally (on a vertical plane). The is accomplished by using stepper motors in the headlight assembly.

The stepper motors are controlled by the LWR control module based on inputs from front and rear mounted ride level sensors.

As the vehicle suspension is loaded by driving or by passengers and cargo, the LWR module corrects the headlight position. This ensures the optimum headlight adjustment.