| 摘要 |
PROBLEM TO BE SOLVED: To provide a power steering device capable of achieving stable steering feeling on a rough road. SOLUTION: The power steering device is favorably used for changing a steering assist force according to vehicle speed. More specifically, a steering assist control means compares the case that a traveling passage is a rough road with the case that the traveling passage is not a rough road, and reduces the change in the steering assist force to the change of the vehicle speed. Thus, the steering assist according to the travel on a rough road can be executed, and the stable steering feeling can be achieved on the rough road. COPYRIGHT: (C)2010,JPO&INPIT |
