| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power steering control device of vehicle which imparts appropriate steering force characteristics for various steering scenes and thereby permitting desirable steering feeling while maintaining reproducibility. <P>SOLUTION: Basic assist torque is set based on a vehicle speed V and steering torque, a first switch back determination is performed in accordance with a temporal change in the steering torque and a steering angle, a second switch back determination is performed in accordance with the steering angle and a temporal change in the steering angle, a third switch back determination is performed in accordance with the steering torque and a temporal change in the steering torque, a first correction amount is calculated in accordance with the result of the first switch back determination and the steering angle, wherein the result of the second switch back determination is used on a region where the absolute value of the steering angle is smaller than the preset threshold, and meanwhile, the result of the third switch back determination is used on a region where the absolute value of the steering angle is the preset threshold or more, a second correction amount is calculated based on the switch back determination and a yaw rate, and an assist correction amount is calculated by adding the first correction amount and the second correction amount. <P>COPYRIGHT: (C)2013,JPO&INPIT |
