| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power steering device capable of automatically performing steering control when it is determined that a driver is in a dozing state even if using a hydraulic actuator. <P>SOLUTION: The power steering device comprises an environment information detection means for detecting information on a vehicle, a driver or a road, a hydraulic pressure control unit for controlling hydraulic pressure fed to an input shaft driving unit based on an output signal of the environment information detection means, a first oil passage which is an output shaft, formed at a position separate in the axial direction from the input shaft driving unit, and connected to a control valve, a second oil passage which is formed in a housing to connect the first oil passage to a first pressure chamber, a third oil passage which is an output shaft, formed at a position separate in the axial direction from the input shaft driving unit, and connected to the control valve, and a fourth oil passage which is formed in the housing to connect the third oil passage to a second pressure chamber. <P>COPYRIGHT: (C)2008,JPO&INPIT |
