发明名称 |
Electric motor control system |
摘要 |
There is provided a control system for an electric motor to which electric power is supplied from a DC power supply via a multi-phase inverter, the multi-phase inverter including switch units respectively provided on a positive side and a negative side of arms corresponding to respective phases, each switch unit including a switching element and a reflux diode connected in parallel thereto. The control system comprises a phase current detection unit for detecting phase currents which flow between the inverter and the electric motor, a DC component acquiring unit for acquiring DC components of the respective phase currents, and a short-circuiting determination unit for determining that a short-circuit failure occurs in the inverter when at least one of the DC components of the phase currents acquired by the DC component acquiring unit exceeds a threshold. Consequently, the short-circuit failure of the inverter can be detected even though the control of the electric motor is stopped. |
申请公布号 |
EP2546980(A3) |
申请公布日期 |
2013.06.26 |
申请号 |
EP20120187918 |
申请日期 |
2009.11.02 |
申请人 |
HONDA MOTOR CO., LTD. |
发明人 |
DANJO, YASUYUKI;IMAI, NAOKI;FUJITA, YUJI;ANRAKU, FUMIO |
分类号 |
H02P27/06;B60L3/00;B60L11/14;H02M1/00;H02M7/48;H02P29/02 |
主分类号 |
H02P27/06 |
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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