Motor vehicles – Having four wheels driven
Patent
1988-10-11
1990-10-30
Hill, Mitchell J.
Motor vehicles
Having four wheels driven
180197, 180248, 3644241, 475 86, 475 88, 475231, 475240, B60K 1720, B60K 2304
Patent
active
049662503
ABSTRACT:
A method of and system for controlling a torque distribution over four wheels of four-wheel drive vehicle when the vehicle is making a turn. When an outer wheel revolution speed is higher than an inner wheel revolution speed, a differential action limiting force is decreased or weakened and a torque distribution ratio, viz., a ratio of a portion of torque distributed toward the front wheels (secondary driving wheels) to the remaining portion of torque distributed toward the rear wheels (primary driving wheels), is decreased. When the inner wheel revolution speed is higher than the outer wheel revolution speed, the differential acting limiting force is increased or strengthened and the torque distribution ratio is increased.
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Hill Mitchell J.
Nissan Motor Co,. Ltd.
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