Motor vehicles – Having four wheels driven
Reexamination Certificate
2006-09-26
2006-09-26
Morris, Lesley D. (Department: 3611)
Motor vehicles
Having four wheels driven
C180S245000, C180S247000
Reexamination Certificate
active
07111702
ABSTRACT:
A method and apparatus for a four-wheel drive motor vehicle provides improved cornering by disengaging drive torque to the inside rear wheel during significant steering maneuvers. The apparatus includes a primary front wheel drive motor vehicle driveline having a center differential which provides drive energy to the primary (front) driveline and secondary (rear) driveline and a rear axle assembly having a pair of normally engaged (active) clutches which provide drive energy to the respective rear wheels. A steering angle sensor detects angular displacement of the steering column or front (steering) wheels and an associated controller disengages the clutch associated with the rear wheel on the inside of the turn as determined by the steering angle sensor.
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Perlick Mark A.
Showalter Dan J.
Borg-Warner Inc.
Brinks Hofer Gileon & Lione
Dziegielewski Greg
Lum L.
Morris Lesley D.
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