发明名称 |
Electromagnetic load controller |
摘要 |
An internal combustion engine controller comprises a current or voltage source for controlling a potential at a diagnosis position in order to ensure a high-precision fault diagnosis, even if the drive cycle of the electromagnetic load (such as a fuel injector), in the internal combustion engine is shorted. Diagnosis timing is optimally set or the number of determinations for averaging is increased in order to ensure high-precision fault diagnosis without being influenced by unexpected disturbance such as noises. In fault diagnosis of a regeneration circuit into a booster circuit, either an input/output voltage or the regeneration current of a driver of the electromagnetic load is detected. |
申请公布号 |
US8144447(B2) |
申请公布日期 |
2012.03.27 |
申请号 |
US20090355252 |
申请日期 |
2009.01.16 |
申请人 |
OURA RYOICHI;WATANABE MITSUHIKO;MAYUZUMI TAKUYA;OKAMOTO KANEYUKI;HITACHI, LTD. |
发明人 |
OURA RYOICHI;WATANABE MITSUHIKO;MAYUZUMI TAKUYA;OKAMOTO KANEYUKI |
分类号 |
H03K3/00;G01R31/02 |
主分类号 |
H03K3/00 |
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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