Torque split control apparatus

Details Torque split control apparatus Torque split control apparatus

1993-08-11

1995-05-23

Chin, Gary

Boots, shoes, and leggings

180197, 180233, 180248, B60K 17348

Patent

active

054187257

ABSTRACT:
A torque split control apparatus for use with 4WD type vehicle. The drive from the engine is transmitted to the primary drive wheels of the vehicle and to the secondary drive wheels of the vehicle through a torque distributing clutch capable of varying a torque transmitted to the secondary drive wheels. First and second control gains are calculated. The first control gain is inversely proportional to the vehicle lateral acceleration. The second control gain is inversely proportional to the vehicle lateral acceleration. The second control gain is smaller than the first control gain. A start indication signal is produced when the vehicle is starting. A target torque is calculated. The target torque is proportional to the first control gain and to the wheel speed difference in the presence of the start indication signal. The target torque is proportional to the second control gain and to the wheel speed difference in the absence of the start indication signal. The torque distributing clutch is controlled to transmit the calculated target torque to the secondary drive wheels.

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