发明授权
- 专利标题： Method for operating a spark-ignition, direct-injection internal combustion engine
- 专利标题（中）： 用于操作火花点火直喷式内燃机的方法
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申请号： US13156655申请日： 2011-06-09
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公开(公告)号： US09046051B2公开(公告)日： 2015-06-02
- 发明人: Kushal Narayanaswamy , Calvin K. Koch , Paul M. Najt , Gerald A. Szekely, Jr. , Joel G. Toner
- 申请人： Kushal Narayanaswamy , Calvin K. Koch , Paul M. Najt , Gerald A. Szekely, Jr. , Joel G. Toner
- 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： F02D41/30
- IPC分类号： F02D41/30 ; F02D28/00 ; F02D41/12 ; F02D41/02 ; F01N13/00 ; F02D41/40 ; F01N3/10 ; F01N3/20
摘要：
A spark-ignition, direct-injection internal combustion engine is coupled to an exhaust aftertreatment system including a three-way catalytic converter upstream of an NH3-SCR catalyst. A method for operating the engine includes operating the engine in a fuel cutoff mode and coincidentally executing a second fuel injection control scheme upon detecting an engine load that permits operation in the fuel cutoff mode.
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