| 发明名称 |
Vehicle steering apparatus |
| 摘要 |
A vehicle steering apparatus in which a mechanical coupling between a steering member and steered wheels is uncoupled, includes a steering actuator for driving a steered mechanism and a control unit for drive-controlling the steering actuator. The control unit reduces steering-stiffness using a PID control portion for drive-controlling the steering actuator according to a deviation between a target steered angle and a steered-angle detected by the steered angle sensor. A gain setting portion sets gains of the PID control portion to be relatively low when a predetermined condition is satisfied. |
| 申请公布号 |
US8744687(B2) |
申请公布日期 |
2014.06.03 |
| 申请号 |
US201213494391 |
申请日期 |
2012.06.12 |
| 申请人 |
Jtekt Corporation |
发明人 |
Hayama Ryouhei;Kada Tomoyasu;Maeda Shingo;Kimura Shuuji |
| 分类号 |
B62D6/08 |
主分类号 |
B62D6/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A vehicle steering apparatus in which a mechanical coupling between a steering member and steered wheels is uncoupled, the apparatus comprising:
a steering actuator for driving a steered mechanism, and a control unit for drive-controlling the steering actuator, wherein the control unit includes steering-stiffness reducing means for reducing steering-stiffness, including a proportional integral differential control portion for drive-controlling the steering actuator according to a deviation between a target steered angle and a steered-angle detected by a steered angle sensor, and the steering-stiffness reducing means includes a gain setting portion for setting gams of the proportional integral differential control portion to be relatively low when a detected vertical acceleration of a body of the vehicle is equal to or higher than a predetermined value.
|
| 地址 |
Osaka-shi JP |
