发明名称 |
Power supply apparatus capable of detecting abnormality of current flowing through drive circuit |
摘要 |
A current detection unit (60a) starts sampling of a motor current (MCRT) at the timing when the motor current (MCRT) has exceeded a threshold value (MCRT_std), and holds a maximum motor current value (MCRT_max) for each prescribed operation cycle. An abnormality determination unit (62a) determines whether the maximum motor current value (MCRT_max) is greater than the threshold value (MCRT_std), and counts the number of times that the maximum motor current value (MCRT_max) continuously exceeds the threshold value (MCRT_std). When the count value has reached at least 3, the abnormality determination unit (62a) generates and outputs a detection signal (DET) indicating abnormality in the motor current to a relay drive unit (64) and a notification unit (66). The relay drive unit (64) in receipt of the detection signal (DET) generates a signal (SE) to turn off the system relays. The notification unit (66) generates and outputs a signal AL to display means outside the power supply apparatus. |
申请公布号 |
EP1614579(A2) |
申请公布日期 |
2006.01.11 |
申请号 |
EP20050013058 |
申请日期 |
2005.06.16 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
OCHIAI, KIYOE;YAGUCHI, HIDEAKI;UECHI, TATSUYUKI;YAGI, KOJI |
分类号 |
B60L3/00;B60W10/08;B60W20/00;G01R19/165;H02H3/08;H02M7/48;H02P27/06 |
主分类号 |
B60L3/00 |
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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