P30.20-0226-01
Illustration shows internal circuitry of accelerator pedal sensor (Hall principle)
B Magnetic flux density
LL CTP position
VL Full-load position
X Component standard for Hall element
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 to the engine control unit by means of 2 voltages (pin 4: approx. 0 to 2.25V and pin 5 0 to 4.5V).