Accelerator Pedal Switch: Description and Operation

GF30.20-P-4011-02C Pedal Value Sensor Design













The sensor on the accelerator pedal which works according to the Hall principle is integrated into the pedal lever axis. It consists of a shaft with ring magnet. This rotates in a printed circuit board with stator in the fixed Hall elements. This produces a change in the voltage.

The accelerator pedal sensor is supplied by the engine control unit with 5 V. The information regarding the accelerator pedal position is passed on to the engine control unit by means of two voltages (pin 4: approx. 0 to 2.25 V and pin 5: approx. 0 to 4.5V).

The kick-down switch (S16/6) was no longer used from 7/02. Full load recognition takes place now over the signal from the accelerator pedal sensor. The pressure point on the accelerator pedal is simulated before achieving the full load position.