ASC Regulation

When the Slip Control Module (ASC+T) detects excessive wheel slip due to acceleration, it signals the Auxiliary Throttle Control Module (ADS II) via a pulse-width modulated signal as to the necessary amount of power reduction required. The Auxiliary Throttle Control Module (ADS II) then activates the ADS II actuator. The ADS II actuator closes the choke valve plate via a bowden cable (similar to cruise control actuator operation) and thereby reduces engine power. If additional regulation is required, the Slip Control Module (ASC+T) can also signal the Engine Control Module (DME), which can then retard ignition timing to further reduce engine power. Further traction control at the rear wheels can be achieved via brake application by the ASC+T hydraulic unit.

ASC+T has the function of shift intervention (i.e. no shifting via Electronic Transmission Control (EGS) during ASC regulation).