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System and method for reducing NOx emissions after fuel cut-off events
System and method for reducing NOx emissions after fuel cut-off events
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机译:用于在燃料切断事件之后减少NOx排放的系统和方法
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摘要
A method of controlling exhaust emission oxides of nitrogen (NOx) from an internal combustion engine (ICE) includes the steps of determining when an engine speed is below a first predetermined level, and controlling an oxygen displacement valve (ODV) such that at least a portion of exhaust gas generated by the ICE is directed into an intake air flow of the ICE.
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