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    Engine operation without cam sensor
    2.
    发明授权
    Engine operation without cam sensor 失效

    公开(公告)号：US07069140B2

    公开(公告)日：2006-06-27

    申请号：US10881080

    申请日：2004-06-30

    申请人： Ahmed Esa Sheikh ,  Bo Nilson Almstedt ,  Mikael Thorell

    发明人： Ahmed Esa Sheikh ,  Bo Nilson Almstedt ,  Mikael Thorell

    IPC分类号： G01M15/04 ,  F02B69/06

    CPC分类号： F02D41/009 ,  F02D41/1446 ,  F02D41/1498 ,  F02D2041/0092 ,  F02D2200/1012

    摘要： Disclosed herein are methods of cranking and/or operating an engine that eliminates the need for use of a cam sensor. The methods implemented with internal combustion engine comprising a plurality of cylinders whose firing sequence occurs over two revolutions of a crankshaft with a first set of cylinders comprising a power stroke during the first crankshaft revolution and a second set of cylinders comprising the power stroke of a second crankshaft revolution. The methods involve manipulating fuel injection command signals to occur out of their proper sequence, monitoring and engine indicator responsive to firing and non-firing of cylinders, and identifying correct engine phase based on fluctuations in the engine indicator. Also disclosed herein are software product embodiments comprising program code modules that cause a engine control unit to manipulate the generation of fuel injection command signals to take place outside their correct sequence.

    Bumpless crankshift position sensing
    3.
    发明授权
    Bumpless crankshift position sensing 失效
    无凸起的转换位置传感

    公开(公告)号：US07000598B2

    公开(公告)日：2006-02-21

    申请号：US10855914

    申请日：2004-05-27

    申请人： Ahmed Esa Sheikh ,  Suresh Baddam Reddy ,  Bo Nilson Almstedt ,  Andreas Peterson

    发明人： Ahmed Esa Sheikh ,  Suresh Baddam Reddy ,  Bo Nilson Almstedt ,  Andreas Peterson

    IPC分类号： F02P7/06

    CPC分类号： F02D41/009 ,  F02B77/087 ,  F02D41/222 ,  F02D2041/285 ,  F02D2400/08

    摘要： Disclosed herein are methods of generating an active crank series of signals that is derived from at least two series of signals, wherein one or both of the series of signals have been modulated to produce two series of signals that resemble each other. Also disclosed herein is a crankshaft positioning system for determining the rotational position of a crankshaft of an engine that utilizes at least two crank angle sensors 10 and 12. The signal information from the two crank angle sensors 10 and 12 is processed by a signal processor 150 such that the series of signals 220 from the second crank angle sensor 12 emulates the series of signals 210 from the first crank angle processor 10. The signal processor generates an active crank series of signals 230 based on the two series of signals 210, 220. The active crank series of signals 230 is sent to an engine control processor 120 which directs the injection and/or ignition of fuel into cylinders of an engine. According to the system exemplified herein, the active crank series of signals 230 sent to the engine control processor 120 is not disrupted despite failure of one of the crank angle sensors. These and other embodiments are disclosed.

    摘要翻译： 这里公开的是产生从至少两个系列信号导出的主动曲柄系列信号的方法，其中一系列信号已经被调制以产生彼此类似的两系列信号。 本文还公开了一种用于确定使用至少两个曲柄角传感器10和12的发动机的曲轴的旋转位置的曲轴定位系统。 来自两个曲柄角传感器10和12的信号信息由信号处理器150处理，使得来自第二曲轴转角传感器12的一系列信号220模拟来自第一曲柄角处理器10的一系列信号210。 信号处理器基于两个系列信号210,220产生主动曲柄系列信号230。 主动曲柄系列信号230被发送到引擎控制处理器120，发动机控制处理器120将燃料的喷射和/或点火引导到发动机的气缸中。 根据这里示出的系统，尽管发动机控制处理器120中的一个曲柄角传感器的故障也不会中断发送到发动机控制处理器120的主动曲柄系列信号230。 公开了这些和其他实施例。

    Engine operation without cam sensor
    6.
    发明授权
    Engine operation without cam sensor 有权
    发动机运转无凸轮传感器

    公开(公告)号：US07181333B2

    公开(公告)日：2007-02-20

    申请号：US11426753

    申请日：2006-06-27

    申请人： Ahmed Esa Sheikh ,  Bo Nilson Almstedt ,  Mikael Thorell

    发明人： Ahmed Esa Sheikh ,  Bo Nilson Almstedt ,  Mikael Thorell

    IPC分类号： G01M15/04 ,  F02B69/06

    CPC分类号： F02D41/009 ,  F02D41/1446 ,  F02D41/1498 ,  F02D2041/0092 ,  F02D2200/1012

    摘要： Disclosed herein are methods of cranking and/or operating an engine that eliminates the need for use of a cam sensor. The methods implemented with internal combustion engine comprising a plurality of cylinders whose firing sequence occurs over two revolutions of a crankshaft with a first set of cylinders comprising a power stroke during the first crankshaft revolution and a second set of cylinders comprising the power stroke of a second crankshaft revolution. The methods involve manipulating fuel injection command signals to occur out of their proper sequence, monitoring and engine indicator responsive to firing and non-firing of cylinders, and identifying correct engine phase based on fluctuations in the engine indicator. Also disclosed herein are software product embodiments comprising program code modules that cause a engine control unit to manipulate the generation of fuel injection command signals to take place outside their correct sequence.

    摘要翻译： 这里公开了起动和/或操作发动机的方法，其消除了使用凸轮传感器的需要。 使用内燃机实施的方法包括多个汽缸，其燃烧次序发生在曲轴两圈以上，第一组气缸包括在第一曲轴旋转期间的动力冲程，第二组气缸包括第二组的动力冲程 曲轴革命。 这些方法涉及操纵燃料喷射指令信号，以响应于气缸的点火和非点火来响应其正确的顺序，监视和发动机指示器，以及基于发动机指示器的波动来识别正确的发动机相位。 本文还公开了包括程序代码模块的软件产品实施例，该程序代码模块使引擎控制单元操纵燃料喷射命令信号的产生以在其正确的顺序之外进行。