发明授权
- 专利标题： Electric power steering apparatus
- 专利标题（中）： 电动助力转向装置
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申请号： US11182000申请日： 2005-07-15
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公开(公告)号： US07325646B2公开(公告)日： 2008-02-05
- 发明人: Atsuhisa Asada
- 申请人： Atsuhisa Asada
- 申请人地址： JP Osaka
- 专利权人： JTEKT Corporation
- 当前专利权人： JTEKT Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 主分类号： B62D5/04
- IPC分类号： B62D5/04
摘要：
In an electric power steering apparatus, at least one of a speed reduction gear ratio of the speed reduction gear mechanism and the number of pole pairs of a motor resolver is set in such a manner that a calculated value, which is obtained by multiplying the speed reduction gear ratio of the speed reduction gear mechanism with the number of pole pairs of the motor resolver, represents a non-integer having a numerical value of the decimal place. This electric power steering apparatus includes an absolute rotational position specifying device configured to specify an absolute rotational position of the steering wheel from among plural possible absolute rotational positions that are obtained based on the steering angle and the motor electrical angle. This electric power steering apparatus is hence capable of controlling an electric motor based on the absolute rotational position of the steering wheel.
公开/授权文献
- US20070012506A1 Electric power steering apparatus 公开/授权日：2007-01-18
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