| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid abnormality detection device for detecting abnormality of inductance of a solenoid. SOLUTION: The solenoid abnormality detection device comprises the solenoid driven by a solenoid drive circuit, a current monitor means for monitoring current made to flow through the solenoid; a current judgment means for judging whether the current is stable on the basis of a change ratio of the current, and an inductance abnormality detection means for detecting the abnormality of the inductance of the solenoid on the basis of a comparison result of a stable time until the current is stable and a reference stable time of the current made to flow through the solenoid set previously. COPYRIGHT: (C)2007,JPO&INPIT
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