Patent ID: 6263995
Filing Date: 2001-07-24
Classification: B60K,B60W,F16D,F16H

Abstract:
A drive system for a motor vehicle having a primary front drive line and secondary rear drive line comprising, in combination,a transmission having an output,a primary drive assembly located in a forward portion of the vehicle and having axles, wheels and a primary differential having an input driven by said transmission output,a secondary drive assembly located in a rearward portion of the vehicle and having axles, wheels and a secondary differential having an input, anda friction clutch assembly having an input driven by said transmission output and an output driving said input of said secondary differential, said friction clutch assembly including an electromagnetic coil, a rotating armature, a plurality of interleaved clutch plates and a force applying operator including a pair of coaxial cam members defining opposed grooves receiving ball members operably disposed between said electromagnetic coil and said plurality of interleaved clutch plates.