发明名称 |
Real time misfire detection for automobile engines |
摘要 |
An apparatus and corresponding method for detecting misfires of a motor vehicle internal combustion engine. The apparatus includes a speed sensor for generating a signal. Also, the apparatus includes a filter means for filtering noise-related events from said signal corresponding to sensed engine speed to thereby produce a filtered output signal. In addition, a pressure sensor for measuring average manifold absolute pressure over a cylinder firing event to set a misfire threshold change in engine speed value is shown. A comparison means for comparing said filtered output signal with said threshold change in engine speed value to detect an engine misfire condition for said cylinder firing event is also included.
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申请公布号 |
US5824890(A) |
申请公布日期 |
1998.10.20 |
申请号 |
US19960691100 |
申请日期 |
1996.08.01 |
申请人 |
CHRYSLER CORPORATION |
发明人 |
LA PALM, JAMES;CZAPSKI, PIOTR |
分类号 |
G01M15/11;(IPC1-7):G01M15/00 |
主分类号 |
G01M15/11 |
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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