发明授权
US08229655B2 Fuel injection and combustion fault diagnostics using cylinder pressure sensor
有权
使用气缸压力传感器进行燃油喷射和燃烧故障诊断
- 专利标题： Fuel injection and combustion fault diagnostics using cylinder pressure sensor
- 专利标题（中）： 使用气缸压力传感器进行燃油喷射和燃烧故障诊断
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申请号： US12468264申请日： 2009-05-19
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公开(公告)号： US08229655B2公开(公告)日： 2012-07-24
- 发明人: Yue-Yun Wang , Ibrahim Haskara , Chol-Bum M. Kweon , Frederic Anton Matekunas , Paul Anthony Battiston
- 申请人： Yue-Yun Wang , Ibrahim Haskara , Chol-Bum M. Kweon , Frederic Anton Matekunas , Paul Anthony Battiston
- 申请人地址： US MI Detroit
- 专利权人： GM Global Technology Operations LLC
- 当前专利权人： GM Global Technology Operations LLC
- 当前专利权人地址： US MI Detroit
- 主分类号： G06F19/00
- IPC分类号： G06F19/00 ; G06F11/30 ; G01M15/00
摘要：
Systems and methods useful for detecting a combustion fault in a combustion engine include determining cylinder power density values for cylinders present on the engine during its operation and determining cylinder imbalance parameters for the cylinders, based on the cylinder power density values. The cylinder imbalance parameters are compared with a provided diagnostic threshold value.
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