发明授权
- 专利标题： Power steering system
- 专利标题（中）： 动力转向系统
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申请号： US10941110申请日： 2004-09-15
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公开(公告)号： US07210554B2公开(公告)日： 2007-05-01
- 发明人: Yoshitaka Sugiyama , Yuji Torizawa
- 申请人： Yoshitaka Sugiyama , Yuji Torizawa
- 申请人地址： JP Tokyo-to
- 专利权人： Hitachi Ltd.
- 当前专利权人： Hitachi Ltd.
- 当前专利权人地址： JP Tokyo-to
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2003-322495 20030916
- 主分类号： B62D5/06
- IPC分类号： B62D5/06
摘要：
A power steering system includes a hydraulic power cylinder, a hydraulic pump for supplying an oil pressure to the hydraulic power cylinder, an electric motor for driving the hydraulic pump, a first detector for detecting a steering assist force to be applied to a steering wheel, a second detector for detecting an operating condition of the electric motor, and a controller. The controller includes a control section for controlling the electric motor based on the required steering assist force detected by the first detector so as to cause the hydraulic pump to produce a required oil pressure, and a determining section for determining based on the operating condition of the electric motor and the required steering assist force detected by the first detector whether or not the power steering system is abnormal.
公开/授权文献
- US20050056480A1 Power steering system 公开/授权日：2005-03-17
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