Stepper Motor
The stepper motor (4) is built into the housing for the differential electronic module.
The differential electronic module supplies the stepper motor with power. A control signal to the stepper motor from the differential electronic module changes the position of a control spindle (3) in the control valve (2) via a small gear wheel (5). The position of the control spindle alters the cross section of a return duct (1) in the valve. This controls the pressure to the operating piston for the multi-plate clutch.