发明名称 Diagnostic apparatus and method for detecting noise on a combustion sensor feedback system
摘要 <p>A method for detecting noise on a conductive path (34) utilized for conducting combustion signals produced by a combustion sensor (26) of an internal combustion engine (10) is disclosed. Essentially, the combustion sensor (26), when operable, produces combustion signals responsive to the occurrence of combustion conditions in a combustion chamber (20) of the engine (10). According to the present invention, the conductive path (34) is monitored for noise signals at a time when the combustion signal is not expected to occur, such that, logically, any noise signal present will be discovered. A controller (30) is connected to a conductive path (34) for conducting combustion signals (38A,38B) produced by a combustion sensor (26) and is operable to monitor the conductive path (34) for noise signals during a time when it is not monitoring for an expected combustion signal. &lt;IMAGE&gt;</p>
申请公布号 EP0907014(A2) 申请公布日期 1999.04.07
申请号 EP19980117295 申请日期 1998.09.11
申请人 CATERPILLAR INC. 发明人 MATTSON, GEORGE W.
分类号 G01M15/04;F02D35/02;F02D41/22;F02D45/00;F02P17/00;(IPC1-7):F02D41/22 主分类号 G01M15/04
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