In a vehicle headlight optical axis automatic adjusting system, a pitch angle (&thetas;p) in the longitudinal direction of a vehicle is calculated from a signal of a height sensor (11, 11F, 11R). Filtering corresponding to a control mode according to the a...

The headlamps move from a minimum position (Pm), to a final position (Pf) for operation, and are held temporarily in an intermediate position (P1). This process is controlled according to the vehicle position, and happens in under 3 seconds. The procedure ...

The present invention relates to a method for headlight range control and a headlight range control device for a motor vehicle, wherein a setpoint value is formed as a function of the vehicle body inclination from measured values for dynamic adjustment of ...

The beam width regulation method detects the inclination of the automobile chassis relative to the road surface for corresponding adjustment of the automobile headlamp (2) for regulating the beam width (LW). A variation in the height of the headlamp relati...

Two chassis height sensors (10a,10b) connected in parallel send signals (Sa,Sb) to a processor (25) which uses them to generate a correcting output signal (Sout). The correcting signal is sent to headlight actuating mechanisms (31,32). The height sensor si...

The rear vehicle height HR is detected by the vehicle height sensor 11 as vehicle inclination information by a CPU. Based on the rear vehicle height HR, the inclination angle of the headlight optical axis direction is computed with an inherent control cons...