发明名称 |
Motor magnetic-pole-position estimating apparatus |
摘要 |
A motor magnetic-pole-position estimating apparatus includes a command voltage output device and a current detector. A model-current calculator is configured to calculate a model current corresponding to a voltage equation for a predetermined model of a motor based on a command voltage and an actual current. A current-difference calculator is configured to calculate a current difference between the model current and the actual current. Each of first and second magnetic-pole-position-difference calculators is configured to calculate a magnetic-pole-position difference between an actual magnetic-pole position of the motor and an estimated or designated magnetic-pole position based on the current difference depending on whether or not a rotation speed of the motor is lower than a predetermined value. A magnetic-pole-position calculation device is configured to calculate the magnetic-pole position of the motor based on the magnetic-pole-position difference calculated by the first or second magnetic-pole-position-difference calculator.
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申请公布号 |
US8384323(B2) |
申请公布日期 |
2013.02.26 |
申请号 |
US20100968296 |
申请日期 |
2010.12.15 |
申请人 |
HONDA MOTOR CO., LTD.;AKIYAMA MASAHIKO |
发明人 |
AKIYAMA MASAHIKO |
分类号 |
H02P21/00 |
主分类号 |
H02P21/00 |
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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