发明名称 |
Power supply apparatus capable of detecting abnormality in current flowing in drive circuit |
摘要 |
A current detection unit samples motor current at every cycle corresponding to a cycle of the highest processing speed of a CPU. A current integral calculation unit integrates the value of the sampled motor current over a sampling period to calculate and output a current integral to an abnormality determination unit. The abnormality determination unit determines whether the current integral is larger than a threshold. When the abnormality determination unit determines that the current integral is larger than the threshold, it generates a detection signal indicating an abnormality in the motor current and outputs the signal to a relay drive unit and a notification unit. The relay drive unit receives the detection signal to generate a signal for turning off a system relay. The notification unit receives the detection signal to generate and output a signal to display means provided outside a power supply apparatus.
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申请公布号 |
US2005286181(A1) |
申请公布日期 |
2005.12.29 |
申请号 |
US20050146352 |
申请日期 |
2005.06.07 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
OCHIAI KIYOE |
分类号 |
B60L3/00;H02H7/08;H02H7/122;(IPC1-7):H02H7/08 |
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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