| 摘要 |
PURPOSE: A steering control apparatus and a method thereof are provided to perform a steering control in advance by monitoring the driver's steering and a travelling car and judging the right turning in case of the situation hard to be judged by ESC wherein over steer occurs, thereby guiding a driver's steering in a right direction. CONSTITUTION: A steering control method is composed of the following steps of: judging whether a car is in a high-speed running or in a turning movement; judging whether over steer occurs or not in case of a turning movement according to the judgment; inputting torque overlay by the degree of the over steer in case of the occurrence of over steer according to the judgment; and judging(S400) the occurrence of over steer until the car is stabilized according to the input torque overlay. [Reference numerals] (AA) Driving by a driver; (BB) Return; (S101) High-speed driving?; (S201) |Steering angular velocity| < (threshold); (S202) |Steering angle| > (threshold); (S203) |Estimated yaw rate| > (threshold); (S204) |Estimated horizontal acceleration| > (threshold); (S205) Maintaining for t seconds?; (S300) |Yaw rate error| > (threshold); (S400) (-) over steer control amount generated; (S500) Vehicle stabilized?;
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