发明名称 |
Rotational angle detection device and method for permanent magnet dynamo-electric machine and electric power steering device |
摘要 |
A rotational angle detection device for a permanent magnet dynamo-electric machine, including: a stator (10); a rotor (20); and a conductive circuit that includes first conductors (1a1, 1a2) extending in a direction parallel to a rotational axis of the rotor and being disposed in at least two places in a circumferential direction of the rotor, and second conductors (1b1, 1b2) for electrically interconnecting the first conductors. In this case, the first conductors are each disposed within a range of an electrical angle between -45° and +45° in the circumferential direction with a magnetic pole center being set as a reference, and the conductive circuit is disposed in at least one place in the circumferential direction, and the rotational angle detection device further comprising a detection means for detecting a rotational angle of the rotor by measuring a value of a current flowing through the armature winding. |
申请公布号 |
EP2078931(A2) |
申请公布日期 |
2009.07.15 |
申请号 |
EP20090150321 |
申请日期 |
2009.01.09 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
NAKANO, MASATSUGU;SATAKE, AKIRA;SHINKAWA, KANJI;AKITA, HIROYUKI;KAWASAKI, SACHIKO |
分类号 |
H02K29/12;G01D5/20;H02K1/27;H02P6/18 |
主分类号 |
H02K29/12 |
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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