发明授权
US07742869B2 Late intake valve closing to improve cold startability for spark-ignition direct-injection (SIDI) engines
失效
后进气门关闭，以提高火花点火直喷（SIDI）发动机的冷启动性
- 专利标题： Late intake valve closing to improve cold startability for spark-ignition direct-injection (SIDI) engines
- 专利标题（中）： 后进气门关闭，以提高火花点火直喷（SIDI）发动机的冷启动性
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申请号： US12106552申请日： 2008-04-21
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公开(公告)号： US07742869B2公开(公告)日： 2010-06-22
- 发明人: Vijay Ramappan , Jesse M. Gwidt , Stuart R. Smith , Michael J. Lucido , Scot A. Douglas , Kenneth J. Cinpinski
- 申请人： Vijay Ramappan , Jesse M. Gwidt , Stuart R. Smith , Michael J. Lucido , Scot A. Douglas , Kenneth J. Cinpinski
- 专利权人： GM Global Technology Operations, Inc.
- 当前专利权人： GM Global Technology Operations, Inc.
- 主分类号： F02D41/00
- IPC分类号： F02D41/00 ; G06F19/00
摘要：
An engine control system includes a cam phaser that introduces a cam phase angle θ between a camshaft intake lobe and an associated crankshaft. An engine control module communicates with the cam phaser to introduce the cam phase angle θ while an engine is being started. The cam phase angle θ is selected such that the camshaft intake lobe opens an intake valve during at least a portion of a compression stroke of a cylinder that is associated with the camshaft intake lobe.
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