| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel driving force allocation controlling system, which enables a vehicle to carry out a proper response even when traveling on a bad road when a detection signal related to a throttle opening shows abnormality. SOLUTION: According to the wheel driving force allocation controlling system 90, when the detection signal related to the throttle opening m shows abnormality, a pre-torque Tp (first torque command value) is invalidated, and a transmission torque based only on a rotation difference torque Tn (second torque command value) related to a rotation speed differenceΔN between front wheels 14 and rear wheels 15 is transmitted to the rear wheels 15, 15. When the vehicle slips on a bad road while coping with abnormalities in such a way as described above, its four wheels are driven so as to suppress the rotation speed differenceΔN between the front and rear wheels 14, 15, making it possible for the vehicle to respond properly to the bad road. COPYRIGHT: (C)2004,JPO
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