发明名称 |
Electromagnetic Load Circuit Failure Diagnosis Device |
摘要 |
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.
|
申请公布号 |
US2011141642(A1) |
申请公布日期 |
2011.06.16 |
申请号 |
US20090740100 |
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 |
H02H9/02 |
主分类号 |
H02H9/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|