发明名称 DRIVE FORCE CONTROL DEVICE FOR FOUR-WHEEL DRIVE VEHICLE
摘要 <p>PURPOSE:To maintain actual yaw rate nearly the same as target yaw rate to obtain favorable turning performance in the case of judging the coupling force of a clutch to be in critical value by reducing engine torque when the actual yaw rate is deviated from the target yaw rate. CONSTITUTION:Rotation difference between front and rear wheels is controlled by coupling force of a clutch with a rotation difference control clutch 100. Meanwhile, actual yaw rate is detected by an actual yaw rate detecting means 101, and target yaw rate is computed by a target yaw rate computing means 102. The coupling force is controlled by a coupling force control means 103, so as to conform the actual vat rate to the target yaw rate. Further, whether the coupling force reaches a critical value or not is judged by a judging means 104. When the coupling force is judged to reach the critical value and the actual yaw rate is deviated from the target yaw rate, engine torque is controlled to be lowered by an engine torque control means 105.</p>
申请公布号 JPH04154437(A) 申请公布日期 1992.05.27
申请号 JP19900279094 申请日期 1990.10.19
申请人 TOYOTA MOTOR CORP 发明人 HIRANO YUTAKA
分类号 B60W10/02;B60K17/346;B60K17/348;B60W10/04;B60W10/06;B60W10/12;B60W10/14;F02D29/02;F02D45/00;F16D48/02 主分类号 B60W10/02
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