发明名称 |
ELECTROMAGNETIC LOAD CIRCUIT FAILURE DIAGNOSIS DEVICE |
摘要 |
<p>A layer short-circuit of a switch element such as a FET included in an electromagnetic load circuit is detected to accurately perform a failure diagnosis of the electromagnetic load circuit. A failure diagnosis circuit 101 is provided which detects a layer short-circuit in which a high-side switch element, a low-side switch element, or an electromagnetic load itself short-circuits with a power supply voltage terminal or a ground in a state of having a predetermined impedance to perform a failure diagnosis.</p> |
申请公布号 |
EP2323258(A1) |
申请公布日期 |
2011.05.18 |
申请号 |
EP20090809716 |
申请日期 |
2009.07.17 |
申请人 |
HITACHI AUTOMOTIVE SYSTEMS, LTD. |
发明人 |
OURA RYOICHI;WATANABE MITSUHIKO;MAYUZUMI TAKUYA |
分类号 |
H03K17/08;F02D41/20;H03K17/00;H03K17/695 |
主分类号 |
H03K17/08 |
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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