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    AIR INJECTION TIMED WITH EXHAUST RELEASE
    32.
    发明申请
    AIR INJECTION TIMED WITH EXHAUST RELEASE 有权
    空气喷射定时排除泄漏

    公开(公告)号：US20130199497A1

    公开(公告)日：2013-08-08

    申请号：US13368230

    申请日：2012-02-07

    申请人： Manish Sharma ,  Gopichandra Surnilla

    发明人： Manish Sharma ,  Gopichandra Surnilla

    IPC分类号： F02B77/00

    CPC分类号： F01N3/32 ,  F01L1/0532 ,  F01L2001/0537 ,  F01N3/22 ,  F01N3/34 ,  Y02T10/20

    摘要： Embodiments for injecting air into exhaust ports of an engine are provided. In one example, a multi-cylinder engine method comprises combusting a rich air-fuel mixture, injecting air into a first cylinder's exhaust port and not into a second cylinder's exhaust port during the first cylinder's exhaust stroke, and injecting air into the second cylinder's exhaust port and not into the first cylinder's exhaust port during the second cylinder's exhaust stroke. In this way, injection into each exhaust port may be timed with exhaust release into each exhaust port.

    摘要翻译： 提供了将空气注入发动机的排气口的实施例。 在一个示例中，多气缸发动机方法包括在第一气缸的排气冲程期间燃烧富空燃混合物，将空气喷入第一气缸的排气口而不进入第二气缸的排气口，并将空气喷入第二气缸排气 在第二缸排气冲程期间不进入第一气缸的排气口。 以这种方式，每个排气口的喷射可以被排放到每个排气口中。

    Methods and systems for engine control
    34.
    发明授权
    Methods and systems for engine control 有权
    发动机控制的方法和系统

    公开(公告)号：US08439002B2

    公开(公告)日：2013-05-14

    申请号：US12474063

    申请日：2009-05-28

    申请人： Ross Dykstra Pursifull ,  Gopichandra Surnilla

    发明人： Ross Dykstra Pursifull ,  Gopichandra Surnilla

    IPC分类号： F02B69/06

    CPC分类号： F02B69/06

    摘要： Methods and systems for controlling an engine are provided. In some examples, the method includes transitioning from operating a cylinder with a first number of strokes per combustion cycle to a second, lesser, number of strokes per combustion cycle in response to boost pressure rising above a threshold boost value. For example, the cylinder may transition from four-stroke combustion cycles to two-stroke combustion cycles, and the method may further include generating the increased boost via operation of an electric machine coupled to a turbocharger of the engine. In this way, transitions to the second, lesser, number of strokes may be enhances as sufficient boost can already be present.

    摘要翻译： 提供了用于控制发动机的方法和系统。 在一些示例中，该方法包括：响应于升高压力升高到高于阈值升压值，将每个燃烧循环中具有第一数量的冲程的气缸从每个燃烧循环转换到第二较少数量的冲程。 例如，气缸可以从四冲程燃烧循环转换到二冲程燃烧循环，并且该方法还可以包括通过耦合到发动机的涡轮增压器的电机的操作来产生增加的升压。 以这种方式，可以增强到第二较少数量的笔划的转变，因为可以已经存在足够的提升。

    FUEL VAPOR PURGING DIAGNOSTICS
    35.
    发明申请
    FUEL VAPOR PURGING DIAGNOSTICS 有权
    燃料蒸气清洗诊断

    公开(公告)号：US20130074589A1

    公开(公告)日：2013-03-28

    申请号：US13681299

    申请日：2012-11-19

    申请人： Ross Dykstra Pursifull ,  Allan J. Lippa ,  John D. Russell ,  Gopichandra Surnilla ,  Joseph Norman Ulrey

    发明人： Ross Dykstra Pursifull ,  Allan J. Lippa ,  John D. Russell ,  Gopichandra Surnilla ,  Joseph Norman Ulrey

    IPC分类号： G01M15/04

    CPC分类号： G01M15/04 ,  F02M25/0809 ,  F02M25/0836

    摘要： Systems and methods are provided for monitoring reverse flow of fuel vapors and/or air through a vehicle fuel vapor recovery system, the fuel vapor recovery system coupled to an engine intake of a boosted internal combustion engine. One example method comprises, intermittently adjusting a restriction in the fuel vapor recovery system during boosted conditions, and indicating degradation based on one or more of a change in a pressure value, or based on a change in flow in the fuel vapor recovery system.

    摘要翻译： 提供了系统和方法，用于通过车辆燃料蒸气回收系统监测燃料蒸汽和/或空气的逆流，所述燃料蒸汽回收系统耦合到升压的内燃机的发动机进气口。 一个示例性方法包括：在增压条件期间间歇地调节燃料蒸汽回收系统中的限制，并且基于压力值的变化中的一个或多个或基于燃料蒸汽回收系统中的流量变化来指示退化。