首页>
外国专利>
METHOD AND APPARATUS FOR CONTROLLING FUEL REFORMING UNDER LOW-LOAD OPERATING CONDITIONS USING EXHAUST RECOMPRESSION IN A HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE
METHOD AND APPARATUS FOR CONTROLLING FUEL REFORMING UNDER LOW-LOAD OPERATING CONDITIONS USING EXHAUST RECOMPRESSION IN A HOMOGENEOUS CHARGE COMPRESSION IGNITION ENGINE
展开▼
机译：在均质装药压缩点火发动机中利用排气再压缩控制低负荷运行条件下燃油重整的方法和装置
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▼
