发明授权
- 专利标题: Method for internal combustion engine control using pressure ratios
- 专利标题(中): 使用压力比的内燃机控制方法
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申请号: US11739212申请日: 2007-04-24
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公开(公告)号: US07418336B2公开(公告)日: 2008-08-26
- 发明人: Frederic Anton Matekunas , Paul Anthony Battiston , Patrick G. Szymkowicz , Anupam Gangopadhyay
- 申请人: Frederic Anton Matekunas , Paul Anthony Battiston , Patrick G. Szymkowicz , Anupam Gangopadhyay
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations, Inc.
- 当前专利权人: GM Global Technology Operations, Inc.
- 当前专利权人地址: US MI Detroit
- 主分类号: F02M7/00
- IPC分类号: F02M7/00 ; G06F17/00 ; G01L23/22
摘要:
The invention comprises a method to operate a direct-injection engine operative at various air/fuel ratios. The method comprises monitoring in-cylinder pressure, along with a corresponding engine crank position to periodically to determine instantaneous in-cylinder pressure states corresponding to the engine crank position during compression and expansion. Pressure ratios are determined based upon the instantaneous in-cylinder pressure states. A combustion heat release is determined based upon the pressure ratios. An aspect of the invention comprises extending the operation to diesel, diesel premixed and to HCCI engines.
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