发明名称 |
Power supply apparatus capable of detecting abnormality in current flowing in drive circuit |
摘要 |
A current detection unit (60a) samples motor current (MCRT) at every cycle corresponding to a cycle of the highest processing speed of a CPU. A current integral calculation unit (62) integrates the value of the sampled motor current (MCRT) over a sampling period to calculate and output a current integral (Is) to an abnormality determination unit (64a). The abnormality determination unit (64a) determines whether the current integral (Is) is larger than a threshold (Is_std). When the abnormality determination unit determines that the current integral (Is) is larger than the threshold (Is_std), it generates a detection signal (DET) indicating an abnormality in the motor current (MCRT) and outputs the signal to a relay drive unit (66) and a notification unit (68). The relay drive unit (66) receives the detection signal (DET) to generate a signal (SE) for turning off a system relay. The notification unit (68) receives the detection signal (DET) to generate and output a signal (AL) to display means provided outside a power supply apparatus. <IMAGE> |
申请公布号 |
EP1609660(A1) |
申请公布日期 |
2005.12.28 |
申请号 |
EP20050012766 |
申请日期 |
2005.06.14 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
OCHIAI, KIYOE |
分类号 |
B60L3/00;H02H7/08;H02H7/122 |
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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