| 摘要 |
A vehicle traction control system includes both driven wheel brake control and engine torque output control for limiting acceleration wheel slip. A boundary condition is identified where engine torque output control alone can be used without braking to regulate the acceleration wheel slip to any desired value. When the traction control system determines that the boundary condition is not exceeded such that engine torque output control alone is capable of preventing an excessive slip condition, only engine torque is controlled to limit wheel slip. However, when the system determines the boundary condition is such that engine torque output control alone will not prevent an excessive slip condition, the brakes of the slipping wheel is then additionally controlled to limit acceleration wheel spin.
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