发明名称 |
Controller for DC brushless motor |
摘要 |
A motor controller implements alternately a feedback control for d axis current and a feedback control for q axis current using an estimate value of a rotor angle in different control cycles. Then, the motor controller calculates a sine reference value which corresponds to a sine value of an angle which is twice a phase difference between an actual value and an estimate value of a rotor angle and a cosine reference value which corresponds to a cosine value of the angle which is twice the phase difference based on variations of the d axis actual current and q axis actual current and levels of d axis voltage and q axis voltage in a control cycle in which feedback controls are implemented for d axis current and q axis current and detects a rotor angle using the sine reference value and the cosine reference value so calculated. |
申请公布号 |
US6838843(B2) |
申请公布日期 |
2005.01.04 |
申请号 |
US20030669013 |
申请日期 |
2003.09.24 |
申请人 |
HONDA GIKEN KOGYO KABUSHIKI KAISHA |
发明人 |
IMAI NOBUYUKI;TAKAHASHI YUTAKA |
分类号 |
H02P6/18;H02P6/08;H02P21/08;(IPC1-7):H02P6/14 |
主分类号 |
H02P6/18 |
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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