发明名称 |
DEVICE FOR CONTROLLING ELECTRIC MOTOR AND METHOD FOR CONTROLLING ELECTRIC MOTOR |
摘要 |
An electric motor control device includes: a motor constant generator configured to generate a motor constant by using a temperature as a parameter; a current control unit configured to generate a current command value to an electric motor based on the motor constant and a torque command value and execute a current control mode in which a voltage applied to the electric motor is controlled to match the current command value; a voltage phase control unit configured to calculate a torque estimation value of the electric motor and execute a voltage phase control mode in which a feedback operation is performed for a voltage phase based on the difference between the torque estimation value and the torque command value; and a control mode switching unit configured to switch to the voltage phase control mode in a high rotation area where a flux weakening control is performed. The torque estimation value is calculated using the motor constant common to generation of the current command value in the current control mode. |
申请公布号 |
EP2827493(A4) |
申请公布日期 |
2016.05.18 |
申请号 |
EP20130761656 |
申请日期 |
2013.03.08 |
申请人 |
NISSAN MOTOR CO., LTD |
发明人 |
SHOUJI, MITSUHIRO |
分类号 |
H02P21/00;H02P27/04;H02P29/00 |
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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