发明授权
- 专利标题： Vehicle electro-hydraulic power steering unit
- 专利标题（中）： 汽车电液动力转向装置
-
申请号： US10975531申请日： 2004-10-29
-
公开(公告)号： US07164978B2公开(公告)日： 2007-01-16
- 发明人: Tetsunao Takaki , Masayasu Miyajima , Toshinori Tanaka , Kiyohide Okamoto
- 申请人： Tetsunao Takaki , Masayasu Miyajima , Toshinori Tanaka , Kiyohide Okamoto
- 申请人地址： JP Tokyo
- 专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人： Mitsubishi Denki Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Sughrue Mion, PLLC
- 优先权： JPP2004-186405 20040624
- 主分类号： B62D6/00
- IPC分类号： B62D6/00 ; B62D5/04
摘要：
A vehicle electro-hydraulic power steering unit includes: a steering mechanism steering a steering wheel in a steering direction; an electro-hydraulic pump; a piston mechanism assisting the steering mechanism in a steering direction; a hydraulic circuit causing an assist force to be generated in response to the steering of the steering mechanism; and a control unit controlling a motor based on an output signal from a vehicle speed sensor, a torque sensor, and a steering angle sensor. In this power steering unit, driving the motor is started when a steering torque exceeds a set torque threshold, and the torque threshold to be set is changed depending on operating conditions. Thus, a vehicle electro-hydraulic power steering unit improved in fuel consumption is obtained.
公开/授权文献
- US20050288838A1 Vehicle electro-hydraulic power steering unit 公开/授权日：2005-12-29