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1. 发明授权

US5634868A Method for advanced crank spark with blend spark retard for an engine 失效
标题翻译：用于发动机的混合火花塞的高级曲柄火花的方法
公开(公告)号：US5634868A
公开(公告)日：1997-06-03
申请号：US481005
申请日：1995-06-07
申请人： Gregory T. Weber , Christopher P. Thomas , Kenneth P. DeGroot , Gerald R. Honkanen , Thomas A. Larson
发明人： Gregory T. Weber , Christopher P. Thomas , Kenneth P. DeGroot , Gerald R. Honkanen , Thomas A. Larson
IPC分类号： F02P5/15 , F01N3/20 , F01N3/24 , F02D41/06
CPC分类号： F02P5/1506 , Y02T10/46 , Y10T477/675
摘要： A method for advanced crank spark with blend spark retard for an internal combustion engine includes the steps of selecting whether a spark in an engine cylinder will be fired on a predetermined first or second crank edge during an engine start mode, firing the spark on the second crank edge during the engine start mode if the second crank edge is selected, firing the spark on the first crank edge if the first crank edge is selected, determining whether the internal combustion engine is in the engine start mode based on engine speed, continuing to select whether to fire the spark on the predetermined first crank edge or the predetermined second crank edge if the internal combustion engine is in the engine start mode based on engine speed less than the predetermined speed, and retarding the spark from a first spark level to a hold start level at a predetermined rate, holding the spark at the hold spark level for a hold period, and advancing the spark to the first spark level at the predetermined rate, if the internal combustion engine is in the engine start mode based on engine speed greater than the predetermined speed.
摘要翻译：一种用于内燃机的混合火花塞的高级曲柄火花的方法包括以下步骤：在发动机起动模式期间选择发动机气缸中的火花是否将在预定的第一或第二曲柄边缘上被点火，在第二如果选择第二曲柄边缘，则在发动机起动模式期间的曲柄边缘，如果选择了第一曲柄边缘，则在第一曲柄边缘上点燃火花，基于发动机转速确定内燃机是否处于发动机起动模式，继续如果内燃机基于小于预定速度的发动机转速处于发动机起动模式，则选择是否在预定的第一曲柄边缘或预定的第二曲柄边缘上点燃火花，并且将火花从第一火花等级延迟到以预定速率保持起始电平，将保持火花等级的火花保持一段保持期，并将火花推进到第一火花点如果内燃机基于大于预定速度的发动机速度处于发动机起动模式，则为最终速率。

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