| 摘要 |
A method for correcting an understeer/oversteer condition of an all wheel drive vehicle (10) by altering the torque delivered to at least one axle (14) of the vehicle is provided. The method includes a step of determining the vehicle speed and lateral acceleration (102). A calculation is made of a neutral steer value of the vehicle based in part upon vehicle speed, vehicle lateral acceleration, and vehicle wheel base length (104). An actual steering angle of the vehicle is also determined (108). A chassis function ratio is determined based in part upon one vehicle physical characteristic and one vehicle operating condition (110). An error signal is calculated based upon a function of the steering angle, neutral steering value, lateral acceleration and chassis function ratio (106). The torque delivered to at least one axle is modified based upon the error signal.
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