发明名称 |
Brush abrasion detector of vehicle generator |
摘要 |
The brush abrasion detector is unnecessary to provide any detecting element for detecting limit of abrasion of a brush in the proximity of the brush. The brush abrasion detector includes: a brush located being slidably press-fitted to a slip ring provided at an end portion of a field winding of a generator, and supplying an excitation current from a battery to the field winding; a current detection circuit for detecting a current value flowing through the field winding via the brush; an output voltage detection circuit for detecting an output voltage value from the generator; and a brush abrasion determination circuit for determining abrasion state of the brush based on a current value detected by the current detection circuit or an output voltage value detected by the output voltage detection circuit.
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申请公布号 |
US2005122227(A1) |
申请公布日期 |
2005.06.09 |
申请号 |
US20040826292 |
申请日期 |
2004.04.19 |
申请人 |
MITSUBISHI DENKI KABUSHIKI KAISHA |
发明人 |
ITOU YOSHIHITO;IWATANI SHIRO |
分类号 |
G01R31/34;H01R39/58;H02K11/00;H02K13/00;(IPC1-7):G08B21/00 |
主分类号 |
G01R31/34 |
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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