发明名称 |
ELECTRIC DRIVING DEVICE AND ELECTRIC POWER STEERING SYSTEM INCLUDING THE SAME |
摘要 |
A control device (3) controlling an electric motor (2) is disposed on an axial line of a rotor shaft (30) of the electric motor (2). The control device (3) includes semiconductor switching devices (15) forming a three-phase bridge circuit that controls a current of the electric motor (2) and capacitors (13) that suppresses a ripple component of a current flowing to the electric motor (2). The semiconductor switching devices (15) and the capacitors (13) are provided in pairs for respective arms of the three-phase bridge circuit and disposed concentrically. Hence, impedance across the three-phase circuit controlling a current flowing to the electric motor is reduced. Consequently, not only can ripples be absorbed efficiently but also power efficiency of a driving device can be enhanced.
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申请公布号 |
US2012313467(A1) |
申请公布日期 |
2012.12.13 |
申请号 |
US201013580284 |
申请日期 |
2010.10.22 |
申请人 |
OMAE KATSUHIKO;TOMINAGA TSUTOMU;ITO SHINICHI;MITSUBISHI ELECTRIC CORPORATION |
发明人 |
OMAE KATSUHIKO;TOMINAGA TSUTOMU;ITO SHINICHI |
分类号 |
H02K11/00;H02K7/116;H02K11/02 |
主分类号 |
H02K11/00 |
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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