Position Measurement of Seat Adjustment Motors

Function
For the purpose of measuring the position of the seat adjustment the front seat adjustment motor groups with memory, left/right (M27 / M28) both have a Hall sensor for each transmission servo motor.

The Hall sensor signals are read by the driver-side seat adjustment control module with memory (N32/1), verified for plausibility, and counted by the location counter for the position measurement.

The received Hall impulses are regarded to be positive or negative depending upon the motor's drive current.