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    In-cylinder pressure sensor diagnostic systems and methods
    6.
    发明授权
    In-cylinder pressure sensor diagnostic systems and methods 有权
    缸内压力传感器诊断系统及方法

    公开(公告)号：US08516895B2

    公开(公告)日：2013-08-27

    申请号：US12575694

    申请日：2009-10-08

    申请人： Douglas R. Verner ,  Kenneth J. Buslepp ,  Joseph R. Dulzo

    发明人： Douglas R. Verner ,  Kenneth J. Buslepp ,  Joseph R. Dulzo

    IPC分类号： G01L7/16

    CPC分类号： F02D41/222 ,  F02D35/023 ,  G01L27/007 ,  Y02T10/40

    摘要： A pressure sensor diagnostic system of the present disclosure includes an excitation module, a frequency determination module, and a fault determination module. The excitation module excites an in-cylinder pressure sensor and causes the in-cylinder pressure sensor to oscillate. The frequency determination module determines an oscillation frequency of the in-cylinder pressure sensor. The fault determination module diagnoses the in-cylinder pressure sensor based on the oscillation frequency.

    摘要翻译： 本公开的压力传感器诊断系统包括激励模块，频率确定模块和故障确定模块。 励磁模块激发缸内压力传感器，并使缸内压力传感器振荡。 频率确定模块确定缸内压力传感器的振荡频率。 故障判定模块基于振荡频率来诊断缸内压力传感器。

    STOCHASTIC PRE-IGNITION DETECTION SYSTEMS AND METHODS
    7.
    发明申请
    STOCHASTIC PRE-IGNITION DETECTION SYSTEMS AND METHODS 有权
    STOCHASTIC PRE-IGNITION检测系统和方法

    公开(公告)号：US20130054109A1

    公开(公告)日：2013-02-28

    申请号：US13222503

    申请日：2011-08-31

    申请人： Kenneth J. Buslepp ,  Daniel G. Brennan ,  Julian R. Verdejo ,  David S. Mathews

    发明人： Kenneth J. Buslepp ,  Daniel G. Brennan ,  Julian R. Verdejo ,  David S. Mathews

    IPC分类号： F02D28/00

    CPC分类号： F02D41/1497 ,  F02D41/009 ,  F02D2041/1417

    摘要： A system for a vehicle includes a time stamping module, a period determination module, a stochastic pre-ignition (SPI) indication module, and an SPI remediation module. The time stamping module generates first and second timestamps when a crankshaft of an engine is in first and second crankshaft positions during an engine cycle, respectively. The period determination module determines a period between the first and second timestamps. The SPI indication module selectively indicates that an SPI event occurred within a cylinder of the engine based on the period. The SPI remediation module selectively adjusts at least one engine operating parameter in response to the SPI indication module indicating that the SPI event occurred within the cylinder.

    摘要翻译： 一种车辆系统包括时间戳模块，周期确定模块，随机预点火（SPI）指示模块和SPI修复模块。 发动机的曲轴分别在发动机循环期间处于第一和第二曲轴位置时，时间戳模块产生第一和第二时间戳。 周期确定模块确定第一和第二时间戳之间的周期。 SPI指示模块基于该周期选择性地指示发生在发动机的气缸内的SPI事件。 SPI修复模块响应于SPI指示模块选择性地调整至少一个引擎操作参数，指示SPI事件发生在气缸内。

    VARIABLE VALVE LIFT MECHANISM FAULT DETECTION SYSTEMS AND METHODS
    8.
    发明申请
    VARIABLE VALVE LIFT MECHANISM FAULT DETECTION SYSTEMS AND METHODS 有权
    可变阀门举升机构故障检测系统及方法

    公开(公告)号：US20120209494A1

    公开(公告)日：2012-08-16

    申请号：US13024726

    申请日：2011-02-10

    申请人： Julian R. Verdejo ,  Kenneth J. Buslepp ,  Nicholas John Kalweit

    发明人： Julian R. Verdejo ,  Kenneth J. Buslepp ,  Nicholas John Kalweit

    IPC分类号： F01L25/00

    CPC分类号： F02D41/0097 ,  F01L1/2405 ,  F01L13/0031 ,  F01L2800/11 ,  F02D35/024 ,  F02D41/1497 ,  F02D41/221 ,  F02D2041/001 ,  F02D2041/1432 ,  F02D2041/227 ,  F02D2041/228 ,  F02D2200/1012 ,  Y02T10/40

    摘要： A system for a vehicle includes a filtering module, an indicated mean effective pressure (IMEP) determination module, and a stuck mechanism indicator module. The filtering module generates engine speeds based on positions of teeth of a toothed wheel that rotates with a crankshaft and based on a crankshaft position signal generated by a crankshaft position sensor. The IMEP determination module determines an IMEP for a combustion cycle of a cylinder of an engine based on squares of first and second ones of the engine speeds during the combustion cycle. The stuck mechanism indicator module selectively diagnoses a fault in a variable valve lift (VVL) mechanism of the cylinder based on the IMEP.

    摘要翻译： 车辆系统包括过滤模块，指示平均有效压力（IMEP）确定模块和卡住机构指示器模块。 过滤模块基于与曲轴一起旋转的齿轮的齿的位置并且基于由曲轴位置传感器产生的曲轴位置信号来生成发动机转速。 IMEP确定模块基于燃烧循环期间的第一和第二发动机速度的平方，确定发动机气缸的燃烧循环的IMEP。 卡住机构指示器模块基于IMEP选择性地诊断气缸的可变气门升程（VVL）机构的故障。

    Crank position correction using cylinder pressure
    9.
    发明授权
    Crank position correction using cylinder pressure 有权
    使用气缸压力进行曲柄位置校正

    公开(公告)号：US07568467B2

    公开(公告)日：2009-08-04

    申请号：US11759263

    申请日：2007-06-07

    申请人： Kenneth J. Buslepp ,  Douglas R. Verner

    发明人： Kenneth J. Buslepp ,  Douglas R. Verner

    IPC分类号： F02M7/00 ,  G06F19/00

    CPC分类号： G01M15/06 ,  F02D35/023 ,  F02D41/009 ,  G01M15/08

    摘要： A method of correcting a crankshaft position may include determining first, second, and third crankshaft positions, determining first, second, and third cylinder pressures, determining first, second, and third cylinder volumes, determining the logarithm of the first, second, and third cylinder pressures and cylinder volumes, and determining a relationship between the third cylinder volume and the first and second cylinder volumes. The first, second, and third crankshaft positions may be provided during one of a piston expansion stroke and a piston compression stroke within a cylinder. The logarithm of the third cylinder pressure and cylinder volume may be evaluated with respect to a predetermined limit of a line defined by the logarithm of the first and second cylinder pressures and first and second cylinder volumes.

    摘要翻译： 校正曲轴位置的方法可以包括确定第一，第二和第三曲轴位置，确定第一，第二和第三气缸压力，确定第一，第二和第三气缸体积，确定第一，第二和第三气缸体积的对数 气缸压力和气缸体积，以及确定第三气缸容积与第一和第二气缸体积之间的关系。 第一，第二和第三曲轴位置可以在气缸内的活塞膨胀冲程和活塞压缩冲程之一内提供。 可以相对于由第一和第二气缸压力和第一和第二气缸体积的对数限定的线的预定极限来评估第三气缸压力和气缸容积的对数。

    Engine idle speed control based upon fuel mass flow rate adjustment
    10.
    发明授权
    Engine idle speed control based upon fuel mass flow rate adjustment 失效
    基于燃料质量流量调节的发动机怠速控制

    公开(公告)号：US5163398A

    公开(公告)日：1992-11-17

    申请号：US807352

    申请日：1991-12-16

    申请人： Kenneth J. Buslepp ,  Douglas E. Trombley ,  Ronald J. Sikarskie

    发明人： Kenneth J. Buslepp ,  Douglas E. Trombley ,  Ronald J. Sikarskie

    IPC分类号： F02D41/08 ,  F02D43/00

    CPC分类号： F02D41/08 ,  F02D43/00

    摘要： An idle speed regulating system is described for an internal combustion engine operating according to a fuel based control strategy, wherein the amount of fuel delivered the engine is determined directly as a function of the demand for engine output power and the amount of air supplied to the engine is controlled as a function of the quantity of delivered fuel. The system senses the actual idling rotational speed of the engine, derives a desired idling speed for the engine, and reduces the difference between the desired and actual idling speeds by adjusting the flow rate of the quantity of fuel delivered to the engine as a function of the difference between the desired and actual idling speeds. More specifically, the rate of fuel flow is adjusted in accordance with the sum of an open-loop feedforward value, a closed-loop feedback value, and preferably an adaptive learning correction value.