发明名称 |
Verfahren und Vorrichtung zum Steuern einer Kraftstoffreformierung bei Niedriglast-Betriebsbedingungen unter Verwendung einer Abgas-Wiederverdichtung in einem Motor mit homogener Kompressionszündung |
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. |
申请公布号 |
DE112008000786(T5) |
申请公布日期 |
2010.04.08 |
申请号 |
DE20081100786T |
申请日期 |
2008.03.12 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS INC. |
发明人 |
KANG, JUN-MO;CHANG, CHEN-FANG;KUO, TANG-WEI |
分类号 |
F02D41/32;F02D19/02 |
主分类号 |
F02D41/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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