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    System and method for performing evaporative leak diagnostics in a vehicle
    7.
    发明授权
    System and method for performing evaporative leak diagnostics in a vehicle 有权
    用于在车辆中执行蒸发泄漏诊断的系统和方法

    公开(公告)号：US08560167B2

    公开(公告)日：2013-10-15

    申请号：US13367635

    申请日：2012-02-07

    申请人： Robert Roy Jentz ,  David Allen Clemens ,  Ann Irene DeZelia ,  Aed Mohammad Dudar ,  Michael Igor Kluzner

    发明人： Robert Roy Jentz ,  David Allen Clemens ,  Ann Irene DeZelia ,  Aed Mohammad Dudar ,  Michael Igor Kluzner

    IPC分类号： G01M17/00 ,  B62D5/06 ,  B60R21/26

    CPC分类号： G01M15/09 ,  G01M3/025 ,  G01M3/3263 ,  G01M3/34

    摘要： A vehicle is provided with a fuel system, a controller, and a diagnostic module with an orifice, a pressure sensor, and a pump, the module connecting the fuel system to atmosphere. The controller measures a reference pressure across the orifice to provide a threshold, isolates the fuel system, and provides a code in response to comparing a series or measured pressures to the threshold. A method for performing an evaporative leak diagnostic is provided. A valve in a diagnostic module is commanded to a vent position. A pump is operated to measure a reference pressure across an orifice to provide a threshold. A valve is commanded to a test position. The pump is operated to place the fuel system in a low pressure state, and a series of pressures in the fuel system is measured. A diagnostic code is provided after comparing the series of pressures to the threshold.

    摘要翻译： 车辆设置有燃料系统，控制器和具有孔口，压力传感器和泵的诊断模块，该模块将燃料系统连接到大气。 控制器测量孔口上的参考压力以提供阈值，隔离燃料系统，并响应于将一系列或测得的压力与阈值进行比较而提供代码。 提供了一种执行蒸发泄漏诊断的方法。 诊断模块中的阀门被命令到排气口。 操作泵以测量跨孔的参考压力以提供阈值。 一个阀被命令到一个测试位置。 操作泵将燃料系统置于低压状态，并测量燃料系统中的一系列压力。 在将一系列压力与阈值进行比较之后提供诊断代码。

    SYSTEM AND METHOD FOR PERFORMING EVAPORATIVE LEAK DIAGNOSTICS IN A VEHICLE
    8.
    发明申请
    SYSTEM AND METHOD FOR PERFORMING EVAPORATIVE LEAK DIAGNOSTICS IN A VEHICLE 有权
    用于在车辆中执行蒸发泄漏诊断的系统和方法

    公开(公告)号：US20120215399A1

    公开(公告)日：2012-08-23

    申请号：US13367635

    申请日：2012-02-07

    申请人： Robert Roy Jentz ,  David Allen Clemens ,  Ann Irene DeZelia ,  Aed Mohammad Dudar ,  Michael Igor Kluzner

    发明人： Robert Roy Jentz ,  David Allen Clemens ,  Ann Irene DeZelia ,  Aed Mohammad Dudar ,  Michael Igor Kluzner

    IPC分类号： G01M17/00

    CPC分类号： G01M15/09 ,  G01M3/025 ,  G01M3/3263 ,  G01M3/34

    摘要： A vehicle is provided with a fuel system, a controller, and a diagnostic module with an orifice, a pressure sensor, and a pump, the module connecting the fuel system to atmosphere. The controller measures a reference pressure across the orifice to provide a threshold, isolates the fuel system, and provides a code in response to comparing a series or measured pressures to the threshold. A method for performing an evaporative leak diagnostic is provided. A valve in a diagnostic module is commanded to a vent position. A pump is operated to measure a reference pressure across an orifice to provide a threshold. A valve is commanded to a test position. The pump is operated to place the fuel system in a low pressure state, and a series of pressures in the fuel system is measured. A diagnostic code is provided after comparing the series of pressures to the threshold.

    摘要翻译： 车辆设置有燃料系统，控制器和具有孔口，压力传感器和泵的诊断模块，该模块将燃料系统连接到大气。 控制器测量孔口上的参考压力以提供阈值，隔离燃料系统，并响应于将一系列或测得的压力与阈值进行比较而提供代码。 提供了一种执行蒸发泄漏诊断的方法。 诊断模块中的阀门被命令到排气口。 操作泵以测量跨孔的参考压力以提供阈值。 一个阀被命令到一个测试位置。 操作泵将燃料系统置于低压状态，并测量燃料系统中的一系列压力。 在将一系列压力与阈值进行比较之后提供诊断代码。

    AIR/FUEL IMBALANCE MONITOR
    9.
    发明申请
    AIR/FUEL IMBALANCE MONITOR 审中-公开
    空气/燃料不平衡监测

    公开(公告)号：US20130184969A1

    公开(公告)日：2013-07-18

    申请号：US13353240

    申请日：2012-01-18

    申请人： John Eric Rollinger ,  Michael Igor Kluzner ,  Robert Roy Jentz

    发明人： John Eric Rollinger ,  Michael Igor Kluzner ,  Robert Roy Jentz

    IPC分类号： F02D41/00

    摘要： Systems and methods for monitoring cylinder air/fuel imbalances are provided. In one example approach, a method comprises, identifying a cylinder with a potential air/fuel imbalance based on crankshaft accelerations generated by a series of rich, lean, and stoichiometric conditions in the cylinder while keeping the engine at stoichiometry.

    摘要翻译： 提供了监测气缸空气/燃料不平衡的系统和方法。 在一个示例性方法中，一种方法包括：基于在气缸中由一系列富，贫和化学计量条件产生的曲轴加速度，识别具有潜在空气/燃料不平衡的气缸，同时将发动机保持在化学计量。