ENGINE OUTPUT CONTROL SYSTEM AND METHOD
    22.
    发明申请
    ENGINE OUTPUT CONTROL SYSTEM AND METHOD 有权
    发动机输出控制系统及方法

    公开(公告)号:US20080228382A1

    公开(公告)日:2008-09-18

    申请号:US12124845

    申请日:2008-05-21

    IPC分类号: F02D41/00

    摘要: A system for an engine, comprising a cylinder located in the engine, a turbocharger coupled to the engine, a first injector for injecting a first fuel into said cylinder, wherein said first injector is a direct cylinder injector where said direct cylinder injector delivers a liquid including an alcohol, a second injector for injecting a second fuel into said cylinder, wherein said second injector is a port injector, where said port injector delivers a liquid including gasoline, a catalytic device configured to receive exhaust gases produced by at least the cylinder, and a controller configured to vary an amount of said first and second fuel injection during engine operation based on operating conditions, where amounts of variation of said first and second fuels are set to maintain a substantially stoichiometric mixture, the controller further configured to increase a relative amount of injection of the second injector in response to an indication of engine knock during a first operating condition, decrease engine boosting in response to the indication of engine knock during a second condition; and retard ignition timing in response the indication of engine knock during a third condition.

    摘要翻译: 一种用于发动机的系统,包括位于发动机中的气缸,联接到发动机的涡轮增压器,用于将第一燃料喷射到所述气缸中的第一喷射器,其中所述第一喷射器是直接气缸喷射器,其中所述直接气缸喷射器输送液体 包括酒精,用于将第二燃料喷射到所述气缸中的第二喷射器,其中所述第二喷射器是端口喷射器,其中所述端口喷射器输送包括汽油的液体,构造成接收由​​至少所述气缸产生的废气的催化装置, 以及控制器,其被配置为基于操作条件来改变发动机操作期间的所述第一和第二燃料喷射的量,其中所述第一和第二燃料的变化量被设置为保持基本上为化学计量的混合物,所述控制器还被配置为增加相对 响应于在第一操作期间引擎敲击的指示,第二喷射器的喷射量 g条件下,在第二个状态下响应于发动机爆震指示而减少发动机升压; 并且在第三状态期间响应于引擎敲击的指示来延迟点火正时。

    SYSTEM AND METHOD FOR COMPENSATION OF FUEL INJECTOR LIMITS
    27.
    发明申请
    SYSTEM AND METHOD FOR COMPENSATION OF FUEL INJECTOR LIMITS 有权
    燃油喷射器限制补偿系统及方法

    公开(公告)号:US20100294235A1

    公开(公告)日:2010-11-25

    申请号:US12845987

    申请日:2010-07-29

    IPC分类号: F02B3/00 F02M7/00

    摘要: A method for an engine configured to deliver an actively varying relative ratio of a first and second fuel via a delivery system having a first and second injector for a cylinder of the engine, where the first fuel has a lesser relative amount of alcohol, the method comprising of varying an amount of injection from the first and second injector with operating conditions, when said variation causes said first injector to approach a first minimum opening condition, increasing injection of said second injector and disabling said first injector, and when said variation causes said second injector to approach a second minimum opening condition, avoiding further reduction of said second injector and decreasing injection of said first injector.

    摘要翻译: 一种用于发动机的方法,其配置成经由具有用于发动机气缸的第一和第二喷射器的输送系统传递第一和第二燃料的主动变化的相对比例,其中第一燃料具有较小的相对量的醇,该方法 包括当所述变化使所述第一喷射器接近第一最小打开状态时改变来自所述第一和第二喷射器的喷射量,当所述变化使所述第一喷射器接近第一最小打开状态时,增加所述第二喷射器的喷射并禁用所述第一喷射器, 第二喷射器接近第二最小打开状态,避免进一步减小所述第二喷射器并减少所述第一喷射器的喷射。