首页>
外国专利>
A method and apparatus for controlling fuel reform at low load operating conditions using exhaust gas recompression in a homogeneous compression ignition engine
A method and apparatus for controlling fuel reform at low load operating conditions using exhaust gas recompression in a homogeneous compression ignition engine
展开▼
机译:一种用于在均质压燃式发动机中利用废气再压缩在低负荷工况下控制燃料重整的方法和装置
展开▼
页面导航
摘要
著录项
相似文献
摘要
A direct injection spark ignition multi-cylinder internal combustion engine operative in a controlled auto-ignition combustion mode includes a direct fuel injection system, a spark ignition system and a controllable engine valve system. The air/fuel ratio in the exhaust gas feedstream and an intake mass air flow are measured and an actual air/fuel ratio is calculated based upon the intake mass air flow and engine fueling. Magnitude of a negative valve overlap period between an exhaust valve closing and an intake valve opening is adjusted based upon the measured mass air flow. Timing of pre-injection fueling is adjusted during the negative valve overlap period based upon the measured air/fuel ratio.
展开▼