发明授权
- 专利标题: Delay compensation systems and methods
- 专利标题(中): 延迟补偿系统和方法
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申请号: US12570251申请日: 2009-09-30
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公开(公告)号: US08113187B2公开(公告)日: 2012-02-14
- 发明人: Jason Meyer , Shawn W. Midlam-Mohler , Kenneth P. Dudek , Stephen Yurkovich , Yann G. Guezennec
- 申请人: Jason Meyer , Shawn W. Midlam-Mohler , Kenneth P. Dudek , Stephen Yurkovich , Yann G. Guezennec
- 专利权人: GM Global Technology Operations LLC
- 当前专利权人: GM Global Technology Operations LLC
- 主分类号: F02D41/00
- IPC分类号: F02D41/00 ; F02D41/02
摘要:
A steady-state (SS) delay module determines a SS delay period for SS operating conditions based on an air per cylinder. A dynamic compensation module determines a predicted delay period based on first and second dynamic compensation variables for dynamic operating conditions, the SS delay period, a previous predicted delay period. The first dynamic compensation variable corresponds to a period between a first time when fuel is provided for a cylinder of an engine and a second time when exhaust gas resulting from combustion of the fuel and air is expelled from the cylinder. The SS and predicted delay periods correspond to a period between the first time and a third time when the exhaust gas reaches an exhaust gas oxygen sensor located upstream of a catalyst. A final equivalence ratio module adjusts fuel provided to the cylinder after the third time based on the predicted delay period.
公开/授权文献
- US20110073087A1 DELAY COMPENSATION SYSTEMS AND METHODS 公开/授权日:2011-03-31
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