发明名称 |
Electric power steering apparatus |
摘要 |
In a current control system for a cylindrical permanent magnet synchronous motor as the drive source of an electric power steering apparatus, proportional gain Kdp and integral gain Kdi of a d-axis current PI control portion 126 are respectively set to Kl.Ld and Kl.Rd on the basis of d-axis inductance Ld and d-axis resistance Rd of the motor. Further, proportional gain Kqp and integral gain Kqi of a q-axis current PI control portion 128 are respectively set to K2.Lq and K2.Rq on the basis of q-axis inductance Lq and q-axis resistance Rq of the motor (K1 and K2 are optional coefficients). In this case, both of the d-axis resistance Rd and the q-axis resistance Rq have values resulting from adding the external resistance R' including wiring resistance to the internal resistance R of the motor. <IMAGE> <IMAGE>
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申请公布号 |
EP1486396(A2) |
申请公布日期 |
2004.12.15 |
申请号 |
EP20040013722 |
申请日期 |
2004.06.11 |
申请人 |
KOYO SEIKO CO., LTD. |
发明人 |
NAGASE, SHIGEKI;SAKAMAKI, MASAHIKO;NISHIZAKI, KATSUTOSHI;OYA, TOSHIAKI;UEDA, TAKESHI |
分类号 |
B62D5/04;H02P21/00;H02P21/06;H02P27/04;(IPC1-7):B62D5/04;H02P6/00 |
主分类号 |
B62D5/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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