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    • 6. 发明授权
    • Method for stopping and starting an internal combustion engine having a variable event valvetrain
    • 一种用于停止和启动具有可变事件阀门的内燃机的方法
    • US07571709B2
    • 2009-08-11
    • US11695182
    • 2007-04-02
    • Donald LewisNate Trask
    • Donald LewisNate Trask
    • F02D1/00F01L1/12
    • F01L9/04F01L1/38F01L9/02F01L13/0005F01L2013/001F01L2800/03F01L2820/045F02B75/021F02B2075/025F02B2075/027F02D13/0207F02D13/0253F02D13/06F02D41/042F02D2013/0292F02N19/004Y02T10/18
    • A method for controlling stopping and starting of an engine having a variable event valvetrain is described. According to the method engine valves may be used to reduce engine evaporative emissions as well as engine starting emissions.Since the engine configuration shown has electrically actuated intake and exhaust valves it is possible to reconfigure the engine operating sequence during a start. For example, the pistons for cylinders two and three are in the same position at the same time. This allows either cylinder to be set to an intake stroke during a subsequent engine restart when the piston is traveling away from the cylinder head while the companion cylinder is set to the expansion or power stroke. Thus, the cylinder having the first intake stroke could be configured to provide a first combustion event during an engine restart. On the other hand, the cylinder set to the power stroke could have been set to the intake stroke such that it is the first cylinder to provide a combustion stroke during a restart.
    • 描述了一种用于控制具有可变事件阀门的发动机的停止和启动的方法。 根据该方法,发动机阀可用于减少发动机蒸发排放以及发动机起动排放。 由于所示的发动机配置具有电致动的进气门和排气门,因此可以在起动期间重新配置发动机的运行顺序。 例如,气缸2和3的活塞同时处于相同的位置。 这允许在随后的发动机重新启动期间当活塞从气缸头行进时伴随气缸被设定为膨胀或动力行程时,气缸被设定为进气行程。 因此,具有第一进气冲程的气缸可以构造成在发动机重起期间提供第一燃烧事件。 另一方面,设定到动力冲程的气缸可以被设定为进气冲程,使得它是在重启期间提供燃烧冲程的第一气缸。