P30.20-0241-01
B37 Pedal value sensor
(with Hall principle)
Representation of internal circuit of pedal value sensor B37 (operating on Hall principle)
B Magnetic flux density
X Component standard for
Hall element
P30.20-0226-01
The pedal value sensor operating on the Hall principle consists of two Hall elements, 2 magnets, electronics and restoring spring. The magnets are moved by the linkage or cable attached to the pedal value sensor and thus alter the direction of the magnetic field relative to the fixed Hall elements. This produces a change in the voltage.
The pedal value sensor is supplied with 5V only at pin 1.Pin 2 is not connected internally. The information regarding the position of the accelerator pedal is transmitted to the engine control module by means of two voltages (pin 4: approx. 0 to 2.25V and pin 5: approx. 0 to 4.5V). The pedal value sensor with potentiometer can also be replaced by a pedal value sensor operating on the Hall principle (but not the other way round).