When the driven wheel of the vehicle slips against the road surface to a large extent, such a large slip of the driven wheel can be converged by reducing torque to be applied to the driven wheel by slip control, i.e., by control the throttle valve for adjusting a load of the engine in a direction of...http://www.google.ca/patents/US5022483?utm_source=gb-gplus-sharePatent US5022483 - Slip control system for a vehicle
