发明授权
- 专利标题： Off-line calibration of universal tracking air fuel ratio regulators
- 专利标题（中）： 通用跟踪空燃比调节器的离线校准
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申请号： US12260334申请日： 2008-10-29
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公开(公告)号： US07925421B2公开(公告)日： 2011-04-12
- 发明人: Sharon Liu , Kenneth P. Dudek , Sai Rajagopalan , Stephen Yurkovich , Yiran Hu , Yann G. Guezennec , Shawn W. Midlam-Mohler
- 申请人： Sharon Liu , Kenneth P. Dudek , Sai Rajagopalan , Stephen Yurkovich , Yiran Hu , Yann G. Guezennec , Shawn W. Midlam-Mohler
- 专利权人： GM Global Technology Operations LLC
- 当前专利权人： GM Global Technology Operations LLC
- 主分类号： F02D41/30
- IPC分类号： F02D41/30
摘要：
A fuel control system of an engine includes a simulation module and a control module. The simulation module generates a simulated pre-catalyst exhaust gas oxygen (EGO) sensor signal based on a simulated oxygen concentration of an exhaust gas. The simulation module determines a simulated pre-catalyst equivalence ratio (EQR) for the exhaust gas based on the simulated pre-catalyst EGO sensor signal. The control module generates a desired pre-catalyst EGO sensor signal based on a desired oxygen concentration of the exhaust gas. The control module determines a desired pre-catalyst EQR based on the desired pre-catalyst EGO sensor signal. The control module determines a cost function based on the simulated pre-catalyst EQR and the desired pre-catalyst EQR. The fuel control system is calibrated based on the cost function.
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