Engine control with valve operation monitoring using camshaft position sensing
    1.
    发明授权
    Engine control with valve operation monitoring using camshaft position sensing 有权
    发动机控制采用凸轮轴位置检测进行阀门运行监控

    公开(公告)号:US08249796B2

    公开(公告)日:2012-08-21

    申请号:US12877309

    申请日:2010-09-08

    摘要: A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include monitoring valve operation by analyzing camshaft position to detect valve operation inconsistent with a current cylinder state (activated or deactivated) and controlling the engine in response to detecting the inconsistent operation. The camshaft position may be used to produce a surrogate signal indicative of intake/exhaust valve lift generated using camshaft sensor tooth deviation relative to an expected or reference tooth position for a corresponding crankshaft position and compared to a corresponding threshold. The surrogate signal indicative of valve lift may also be generated by pattern matching or correlation of one or more reference tooth position patterns to a measured or inferred tooth position pattern.

    摘要翻译: 一种用于控制以减少排量模式操作的多气缸内燃机的系统或方法,其中至少一个阀或气缸选择性地停用包括通过分析凸轮轴位置来监测阀门操作,以检测与当前气缸状态不一致的阀门操作(激活或停用) 并且响应于检测到不一致的操作来控制引擎。 可以使用凸轮轴位置来产生指示使用相对于相应曲轴位置的预期或参考齿位置的凸轮轴传感器齿偏差产生的进气/排气门升程的代理信号,并与相应的阈值进行比较。 指示气门升程的替代信号也可以通过一个或多个参考齿位置图案与测量或推断的齿位置图案的图案匹配或相关来产生。

    ENGINE CONTROL WITH VALVE OPERATION MONITORING USING CAMSHAFT POSITION SENSING
    2.
    发明申请
    ENGINE CONTROL WITH VALVE OPERATION MONITORING USING CAMSHAFT POSITION SENSING 有权
    使用CAMSHAFT位置传感器进行阀门操作监控的发动机控制

    公开(公告)号:US20120296550A1

    公开(公告)日:2012-11-22

    申请号:US13560253

    申请日:2012-07-27

    IPC分类号: F02D28/00

    摘要: A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include monitoring valve operation by analyzing camshaft position to detect valve operation inconsistent with a current cylinder state (activated or deactivated) and controlling the engine in response to detecting the inconsistent operation. The camshaft position may be used to produce a surrogate signal indicative of intake/exhaust valve lift generated using camshaft sensor tooth deviation relative to an expected or reference tooth position for a corresponding crankshaft position and compared to a corresponding threshold. The surrogate signal indicative of valve lift may also be generated by pattern matching or correlation of one or more reference tooth position patterns to a measured or inferred tooth position pattern.

    摘要翻译: 一种用于控制以减少排量模式操作的多气缸内燃机的系统或方法,其中至少一个阀或气缸选择性地停用包括通过分析凸轮轴位置来监测阀门操作,以检测与当前气缸状态不一致的阀门操作(激活或停用) 并且响应于检测到不一致的操作来控制引擎。 可以使用凸轮轴位置来产生指示使用相对于相应曲轴位置的预期或参考齿位置的凸轮轴传感器齿偏差产生的进气/排气门升程的代理信号,并与相应的阈值进行比较。 指示气门升程的替代信号也可以通过一个或多个参考齿位置图案与测量或推断的齿位置图案的图案匹配或相关来产生。

    Engine Control with Valve Operation Monitoring Using Camshaft Position Sensing
    3.
    发明申请
    Engine Control with Valve Operation Monitoring Using Camshaft Position Sensing 有权
    发动机控制与阀门操作监控使用凸轮轴位置检测

    公开(公告)号:US20110144883A1

    公开(公告)日:2011-06-16

    申请号:US12877309

    申请日:2010-09-08

    IPC分类号: F02D28/00

    摘要: A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include monitoring valve operation by analyzing camshaft position to detect valve operation inconsistent with a current cylinder state (activated or deactivated) and controlling the engine in response to detecting the inconsistent operation. The camshaft position may be used to produce a surrogate signal indicative of intake/exhaust valve lift generated using camshaft sensor tooth deviation relative to an expected or reference tooth position for a corresponding crankshaft position and compared to a corresponding threshold. The surrogate signal indicative of valve lift may also be generated by pattern matching or correlation of one or more reference tooth position patterns to a measured or inferred tooth position pattern.

    摘要翻译: 一种用于控制以减少排量模式操作的多气缸内燃机的系统或方法,其中至少一个阀或气缸选择性地停用包括通过分析凸轮轴位置来监测阀门操作,以检测与当前气缸状态不一致的阀门操作(激活或停用) 并且响应于检测到不一致的操作来控制引擎。 可以使用凸轮轴位置来产生指示使用相对于相应曲轴位置的预期或参考齿位置的凸轮轴传感器齿偏差产生的进气/排气门升程的代理信号,并与相应的阈值进行比较。 指示气门升程的替代信号也可以通过一个或多个参考齿位置图案与测量或推断的齿位置图案的图案匹配或相关来产生。

    Engine control with valve operation monitoring using camshaft position sensing
    4.
    发明授权
    Engine control with valve operation monitoring using camshaft position sensing 有权
    发动机控制采用凸轮轴位置检测进行阀门运行监控

    公开(公告)号:US08666641B2

    公开(公告)日:2014-03-04

    申请号:US13560253

    申请日:2012-07-27

    摘要: A system or method for controlling a multiple cylinder internal combustion engine operable in a reduced displacement mode with at least one valve or cylinder selectively deactivated include monitoring valve operation by analyzing camshaft position to detect valve operation inconsistent with a current cylinder state (activated or deactivated) and controlling the engine in response to detecting the inconsistent operation. The camshaft position may be used to produce a surrogate signal indicative of intake/exhaust valve lift generated using camshaft sensor tooth deviation relative to an expected or reference tooth position for a corresponding crankshaft position and compared to a corresponding threshold. The surrogate signal indicative of valve lift may also be generated by pattern matching or correlation of one or more reference tooth position patterns to a measured or inferred tooth position pattern.

    摘要翻译: 一种用于控制以减少排量模式操作的多气缸内燃机的系统或方法,其中至少一个阀或气缸选择性地停用包括通过分析凸轮轴位置来监测阀门操作,以检测与当前气缸状态不一致的阀门操作(激活或停用) 并且响应于检测到不一致的操作来控制引擎。 可以使用凸轮轴位置来产生指示使用相对于相应曲轴位置的预期或参考齿位置的凸轮轴传感器齿偏差产生的进气/排气门升程的代理信号,并与相应的阈值进行比较。 指示气门升程的替代信号也可以通过一个或多个参考齿位置图案与测量或推断的齿位置图案的图案匹配或相关来产生。

    Inferred oil responsiveness using pressure sensor pulses
    5.
    发明授权
    Inferred oil responsiveness using pressure sensor pulses 有权
    推测使用压力传感器脉冲的油响应性

    公开(公告)号:US08079335B2

    公开(公告)日:2011-12-20

    申请号:US12561702

    申请日:2009-09-17

    IPC分类号: F01L1/34

    CPC分类号: F01L1/34 F01L2001/34423

    摘要: A system and method for controlling an internal combustion engine include determining oil responsiveness based on pressure variations associated with oil pump pulses in response to a stimulus, and controlling the engine based on the determined oil responsiveness. The stimulus may be a change in oil temperature, engine speed, or commanded pump pressure, for example. The system and method may also use the rate of change of mean oil pressure to determine the oil responsiveness or measure of oil viscosity. Oil responsiveness may be used to control hydraulic actuators, such as variable cam timing devices, or valve deactivation devices.

    摘要翻译: 用于控制内燃机的系统和方法包括响应于刺激而基于与油泵脉冲相关联的压力变化来确定油响应性,以及基于所确定的油响应性来控制发动机。 刺激可能是例如油温,发动机转速或指令泵压力的变化。 系统和方法还可以使用平均油压的变化率来确定油的响应性或油粘度的测量。 油响应性可用于控制液压致动器,例如可变凸轮定时装置或阀停用装置。

    INFERRED OIL RESPONSIVENESS USING PRESSURE SENSOR PULSES
    7.
    发明申请
    INFERRED OIL RESPONSIVENESS USING PRESSURE SENSOR PULSES 有权
    使用压力传感器脉冲引起的油反应

    公开(公告)号:US20110066357A1

    公开(公告)日:2011-03-17

    申请号:US12561702

    申请日:2009-09-17

    IPC分类号: F02D41/00 F01L1/34

    CPC分类号: F01L1/34 F01L2001/34423

    摘要: A system and method for controlling an internal combustion engine include determining oil responsiveness based on pressure variations associated with oil pump pulses in response to a stimulus, and controlling the engine based on the determined oil responsiveness. The stimulus may be a change in oil temperature, engine speed, or commanded pump pressure, for example. The system and method may also use the rate of change of mean oil pressure to determine the oil responsiveness or measure of oil viscosity. Oil responsiveness may be used to control hydraulic actuators, such as variable cam timing devices, or valve deactivation devices.

    摘要翻译: 用于控制内燃机的系统和方法包括响应于刺激而基于与油泵脉冲相关联的压力变化来确定油响应性,以及基于所确定的油响应性来控制发动机。 刺激可能是例如油温,发动机转速或指令泵压力的变化。 系统和方法还可以使用平均油压的变化率来确定油的响应性或油粘度的测量。 油响应性可用于控制液压致动器,例如可变凸轮定时装置或阀停用装置。

    Variable displacement engine diagnostics
    8.
    发明授权
    Variable displacement engine diagnostics 有权
    可变排量发动机诊断

    公开(公告)号:US08286471B2

    公开(公告)日:2012-10-16

    申请号:US12352989

    申请日:2009-01-13

    IPC分类号: G01M15/08

    摘要: Methods and systems are provided for monitoring cylinder valve deactivation in an engine operating with a plurality of cylinder valves. One example method comprises indicating valve degradation based on an indication of manifold pressure over a plurality of immediately successive induction events of the engine, the indication responsive to increases and decreases in the indication of manifold pressure correlated to the induction events of engine cylinders and further correlated to whether cylinders are commanded to be activated or deactivated.

    摘要翻译: 提供了用于监测在与多个气缸阀一起操作的发动机中的气缸阀门失活的方法和系统。 一个示例性方法包括基于在发动机的多个立即连续的感应事件上的歧管压力的指示来指示阀门劣化,该指示响应于与发动机气缸的感应事件相关的歧管压力的指示的增加和减少,以及进一步相关 指示是否命令气缸被激活或停用。