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： US11739366申请日： 2007-04-24
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公开(公告)号： US07577505B2公开(公告)日： 2009-08-18
- 发明人: Shigeki Nagase
- 申请人： Shigeki Nagase
- 申请人地址： JP Osaka-shi
- 专利权人： JTEKT Corporation
- 当前专利权人： JTEKT Corporation
- 当前专利权人地址： JP Osaka-shi
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： JP2006-119127 20060424
- 主分类号： B62D6/00
- IPC分类号： B62D6/00
摘要：
A first restrict value calculating unit obtains a first restrict value Im1 on the basis of the integration value (Id2+Iq2) of a d-axis current detection value and a q-axis current detection value. A second restrict value calculator 50 calculates a second restrict value Im2 on the basis of the maximum value of the integration values of the squares Iu2, Iv2, and Iw2 of 3-phase current detection values. A target current value It calculated by a target current calculating unit 21 is restricted by so that a current value limiter so as to be not greater than the first restrict value Im1 and the second restrict value Im2. By using the two restrict value restricting the motor driving current, it is possible to control properly the motor driving current in accordance with a general driving condition and various steering conditions.
公开/授权文献
- US20070250233A1 ELECTRIC POWER STEERING APPARATUS 公开/授权日：2007-10-25
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