发明名称 |
DRIVE CIRCUIT FOR AN INJECTOR ARRANGEMENT AND A DIAGNOSTIC METHOD |
摘要 |
The invention relates to a drive circuit for an injector arrangement comprising a first fuel injector in parallel with a capacitive component. The drive circuit comprises: a selector means and diagnostic means. The selector means is operable to select the first fuel injector and/or the capacitive component into the drive circuit and to deselect the first fuel injector and/or the capacitive component from the drive circuit. When the capacitive component is selected and the first fuel injector is deselected, the diagnostic means is operable to sense a current through the first fuel injector. When the sensed current is at variance from a first threshold current the diagnostic means is operable to provide a first signal on detection of a stack terminal short circuit fault associated with the first fuel injector. The capacitive component may be a second fuel injector.
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申请公布号 |
US2009133671(A1) |
申请公布日期 |
2009.05.28 |
申请号 |
US20090358298 |
申请日期 |
2009.01.23 |
申请人 |
PERRYMAN LOUISA J;SYKES MARTIN A P |
发明人 |
PERRYMAN LOUISA J.;SYKES MARTIN A.P. |
分类号 |
F02M51/00 |
主分类号 |
F02M51/00 |
代理机构 |
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代理人 |
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地址 |
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