发明授权
- 专利标题: Method for a cylinder-charge control in the case of an internal combustion engine
- 专利标题(中): 在内燃机的情况下用于气缸充气控制的方法
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申请号: US10257191申请日: 2003-02-28
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公开(公告)号: US06807956B2公开(公告)日: 2004-10-26
- 发明人: Hermann Gaessler , Udo Diehl , Karsten Mischker , Rainer Walter , Bernd Rosenau , Juergen Schiemann , Christian Grosse , Volker Beuche , Stefan Reimer
- 申请人: Hermann Gaessler , Udo Diehl , Karsten Mischker , Rainer Walter , Bernd Rosenau , Juergen Schiemann , Christian Grosse , Volker Beuche , Stefan Reimer
- 优先权: DE10018303 20000413
- 主分类号: F02M2507
- IPC分类号: F02M2507
摘要:
A method for cylinder-charge control is described as implementing an internal recirculation of residual gas in the cylinder, through controlling the closing times of at least one exhaust valve of the respective cylinder and by opening at least one intake valve in the vicinity of top dead center of the piston, along with intermittent discharge of residual gas in front of the at least one intake valve. Within one charge-exchange process in the cylinder, in at least two phases that are offset in time from one another, at least one intake valve is opened. This method optimizes the engine operation in the warm-up phase from the standpoint of consumption, pollutant emission and running smoothness.
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