| 摘要 |
PROBLEM TO BE SOLVED: To provide a torque allocation controller for a four-wheeled-drive vehicle, which enables the vehicle to carry out a stable four-wheeled-drive travel ing even when an abnormal wheel speed signal is sensed. SOLUTION: A CPU 21 of an electronic controller 20 calculates a command torque, using wheel speed data given by a wheel speed signal of each of four wheels that is sensed by respective wheel speed sensors S1, S2, S3, S4 and a throttle opening sensed by a throttle opening sensor 15. The CPU 21 also makes a judgement on a possibility of the occurrence or non-occurrence of a tight cornering phenomenon using the wheel speed data from the wheel speed signal of each of four wheels that is sensed by each wheel speed sensor. When a judgement is made that the tight cornering phenomenon will occur, the command torque given to driven wheels is controlled to be zero or a minimum value. The CPU 21 prohibits a tight cornering judgement when the sensed wheel speed signal show abnormality. COPYRIGHT: (C)2004,JPO
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