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    Fuel system blockage detection and blockage location identification systems and methods
    1.
    发明授权
    Fuel system blockage detection and blockage location identification systems and methods 有权
    燃油系统堵塞检测和堵塞位置识别系统和方法

    公开(公告)号：US08935081B2

    公开(公告)日：2015-01-13

    申请号：US13350141

    申请日：2012-01-13

    申请人： Robert Jackson ,  William R. Cadman ,  David Edward Prout

    发明人： Robert Jackson ,  William R. Cadman ,  David Edward Prout

    IPC分类号： F02D41/22

    CPC分类号： F02M25/0809

    摘要： A system for a vehicle includes a first pressure module and a blockage indication module. The first pressure module receives a signal from a pressure sensor that measures pressure within a fuel vapor purge system. The first pressure module generates a first pressure based on the signal at a first time and generates a second pressure based on the signal at a second time. The second time is after the first time. The blockage indication module indicates whether a blockage is present in the fuel vapor purge system between the pressure sensor and a fuel tank based on a difference between the first and second pressures.

    摘要翻译： 一种车辆系统包括第一压力模块和阻塞指示模块。 第一压力模块接收来自测量燃料蒸气吹扫系统内的压力的压力传感器的信号。 第一压力模块基于该信号在第一时间产生第一压力，并且在第二时间基于该信号产生第二压力。 第二次是第一次。 堵塞指示模块基于第一和第二压力之间的差异来指示在压力传感器和燃料箱之间的燃料蒸气吹扫系统中是否存在阻塞。

    Low purge flow vehicle diagnostic tool
    2.
    发明授权
    Low purge flow vehicle diagnostic tool 有权
    低清洗流量车辆诊断工具

    公开(公告)号：US08630786B2

    公开(公告)日：2014-01-14

    申请号：US12823281

    申请日：2010-06-25

    申请人： Robert Jackson ,  William R. Cadman ,  Kurt D. McLain ,  David Edward Prout

    发明人： Robert Jackson ,  William R. Cadman ,  Kurt D. McLain ,  David Edward Prout

    IPC分类号： F02M33/02

    CPC分类号： F02M25/0809 ,  F02D41/0037

    摘要： A vehicle includes an engine, a sealed fuel system having a fuel tank, a canister for storing fuel vapor, a vapor circuit external to the fuel tank, and a control valve. The vapor circuit includes an absolute pressure sensor and a switching valve connecting the fuel tank to the control valve. A controller evaluates or diagnoses a vapor purge function of the sealed fuel system using vacuum measurements from the absolute pressure sensor, executing or diagnosing only when the engine is running, purge is enabled, and the pump is off. The controller diagnoses the vapor purge function by comparing the vacuum measurements to a threshold vacuum. An apparatus includes the vapor circuit and controller. A method for diagnosing the vapor purge function includes actuating the switching valve, measuring a vacuum in the system using the absolute pressure sensor, and comparing the measured vacuum to a threshold vacuum.

    摘要翻译： 车辆包括发动机，具有燃料箱的密封燃料系统，用于储存燃料蒸气的罐，在燃料箱外部的蒸气回路和控制阀。 蒸汽回路包括绝对压力传感器和将燃料箱连接到控制阀的切换阀。 控制器使用来自绝对压力传感器的真空测量来评估或诊断密封燃料系统的蒸汽吹扫功能，仅在发动机运行，清洗启用并且泵关闭时执行或诊断。 控制器通过将真空测量值与阈值真空进行比较来诊断蒸气吹扫功能。 一种装置包括蒸汽回路和控制器。 用于诊断蒸气吹扫功能的方法包括致动切换阀，使用绝对压力传感器测量系统中的真空，并将测量的真空与阈值真空进行比较。

    LARGE LEAK DIAGNOSTIC TOOL FOR A SEALED FUEL SYSTEM IN A VEHICLE
    3.
    发明申请
    LARGE LEAK DIAGNOSTIC TOOL FOR A SEALED FUEL SYSTEM IN A VEHICLE 有权
    用于汽车密封燃料系统的大型泄漏诊断工具

    公开(公告)号：US20120079873A1

    公开(公告)日：2012-04-05

    申请号：US12895907

    申请日：2010-10-01

    申请人： Robert Jackson ,  William R. Cadman ,  John F. Van Gilder

    发明人： Robert Jackson ,  William R. Cadman ,  John F. Van Gilder

    IPC分类号： G01M3/34

    CPC分类号： G01M3/34 ,  B60K15/03519 ,  B60K2015/0319 ,  B60K2015/03514 ,  G01M3/025

    摘要： A vehicle includes a sealed fuel system and a controller. The fuel system includes a fuel tank, a fuel cap, a control orifice, and an absolute pressure sensor. The controller associates a threshold large leak in the fuel system with a fuel cap sealing error. The controller detects completion of a prior refueling event, compares measurements from the pressure sensor to a reference vacuum across the control orifice to determine the presence of the threshold large leak, and sets a diagnostic code corresponding to the large leak only upon completion of the prior refueling event. A method for detecting the large leak includes detecting completion of the refueling event, comparing vacuum measurements from the absolute pressure sensor to a reference vacuum across the orifice to determine the presence of the large leak, and setting a diagnostic code corresponding to the large leak only upon completion of the prior refueling event.

    摘要翻译： 车辆包括密封燃料系统和控制器。 燃料系统包括燃料箱，燃料盖，控制孔和绝对压力传感器。 控制器将燃料系统中的阈值大泄漏与燃料盖密封误差相关联。 控制器检测到先前的加油事件的完成，将来自压力传感器的测量值与控制孔口上的参考真空度进行比较，以确定阈值大泄漏的存在，并且仅在先前完成的情况下设置对应于大泄漏的诊断代码 加油事件 用于检测大泄漏的方法包括检测加油事件的完成，将来自绝对压力传感器的真空测量与穿过孔的参考真空进行比较，以确定是否存在大泄漏，并且设置对应于大泄漏的诊断代码 完成以前的加油事件。

    LOW PURGE FLOW VEHICLE DIAGNOSTIC TOOL
    4.
    发明申请
    LOW PURGE FLOW VEHICLE DIAGNOSTIC TOOL 有权
    低流量车辆诊断工具

    公开(公告)号：US20110315127A1

    公开(公告)日：2011-12-29

    申请号：US12823281

    申请日：2010-06-25

    申请人： Robert Jackson ,  William R. Cadman ,  Kurt D. McLain ,  David Edward Prout

    发明人： Robert Jackson ,  William R. Cadman ,  Kurt D. McLain ,  David Edward Prout

    IPC分类号： F02M33/02

    CPC分类号： F02M25/0809 ,  F02D41/0037

    摘要： A vehicle includes an engine, a sealed fuel system having a fuel tank, a canister for storing fuel vapor, a vapor circuit external to the fuel tank, and a control valve. The vapor circuit includes an absolute pressure sensor and a switching valve connecting the fuel tank to the control valve. A controller evaluates or diagnoses a vapor purge function of the sealed fuel system using vacuum measurements from the absolute pressure sensor, executing or diagnosing only when the engine is running, purge is enabled, and the pump is off. The controller diagnoses the vapor purge function by comparing the vacuum measurements to a threshold vacuum. An apparatus includes the vapor circuit and controller. A method for diagnosing the vapor purge function includes actuating the switching valve, measuring a vacuum in the system using the absolute pressure sensor, and comparing the measured vacuum to a threshold vacuum.

    摘要翻译： 车辆包括发动机，具有燃料箱的密封燃料系统，用于储存燃料蒸气的罐，在燃料箱外部的蒸气回路和控制阀。 蒸汽回路包括绝对压力传感器和将燃料箱连接到控制阀的切换阀。 控制器使用来自绝对压力传感器的真空测量来评估或诊断密封燃料系统的蒸汽吹扫功能，仅在发动机运行，清洗启用和泵关闭时执行或诊断。 控制器通过将真空测量值与阈值真空进行比较来诊断蒸气吹扫功能。 一种装置包括蒸汽回路和控制器。 用于诊断蒸气吹扫功能的方法包括致动切换阀，使用绝对压力传感器测量系统中的真空，并将测量的真空与阈值真空进行比较。

    WIND CONDITION BASED VAPOR LEAK DETECTION TEST
    6.
    发明申请
    WIND CONDITION BASED VAPOR LEAK DETECTION TEST 有权
    基于风条件的蒸汽泄漏检测测试

    公开(公告)号：US20090293599A1

    公开(公告)日：2009-12-03

    申请号：US12132192

    申请日：2008-06-03

    申请人： Kurt D. Mc Lain ,  Wenbo Wang ,  Zhong Wang ,  William R. Cadman

    发明人： Kurt D. Mc Lain ,  Wenbo Wang ,  Zhong Wang ,  William R. Cadman

    IPC分类号： G01M3/00 ,  F02M33/02

    CPC分类号： F02M25/0827

    摘要： A control system comprising a wind condition determination module that determines a wind condition and a leak detection test control module that selectively diagnoses a vapor leak associated with a vehicle based on the wind condition. A method comprising determining a wind condition and selectively diagnosing a vapor leak associated with a vehicle based on the wind condition.

    摘要翻译： 一种控制系统，包括确定风况的风况确定模块和基于风况选择性地诊断与车辆相关联的蒸气泄漏的泄漏检测测试控制模块。 一种方法，包括基于风况确定风况并选择性地诊断与车辆相关联的蒸气泄漏。

    Method and apparatus for engine control module wake-up test
    7.
    发明授权
    Method and apparatus for engine control module wake-up test 有权
    发动机控制模块唤醒测试方法和装置

    公开(公告)号：US08560158B2

    公开(公告)日：2013-10-15

    申请号：US12854427

    申请日：2010-08-11

    申请人： Wenbo Wang ,  William R. Cadman ,  Robert Jackson ,  Paul William Rasmussen

    发明人： Wenbo Wang ,  William R. Cadman ,  Robert Jackson ,  Paul William Rasmussen

    IPC分类号： F02M33/02

    CPC分类号： F02D41/266 ,  F02D41/042 ,  F02D41/22 ,  F02D2041/224 ,  F02M25/0809

    摘要： A fuel system diagnostic wakeup system for a vehicle includes a first control module. The first control module generates a wakeup request, powers off when the vehicle powers off, and powers on and performs a fuel system diagnostic in response to a wakeup signal while the vehicle is powered off. A second control module independent of the first control module receives the wakeup request and generates the wakeup signal after the vehicle powers off based on the wakeup request.

    摘要翻译： 一种用于车辆的燃料系统诊断唤醒系统包括第一控制模块。 第一控制模块产生唤醒请求，当车辆关闭时关闭电源，并且在车辆断电时响应于唤醒信号开启并执行燃料系统诊断。 独立于第一控制模块的第二控制模块接收唤醒请求，并且基于唤醒请求在车辆关机之后产生唤醒信号。

    SYSTEM AND METHOD FOR DIAGNOSING FAULTS IN VACUUM PUMPS OF FUEL SYSTEMS AND FOR DIAGNOSING LEAKS IN FUEL SYSTEMS
    9.
    发明申请
    SYSTEM AND METHOD FOR DIAGNOSING FAULTS IN VACUUM PUMPS OF FUEL SYSTEMS AND FOR DIAGNOSING LEAKS IN FUEL SYSTEMS 有权
    用于诊断燃油系统真空泵中的故障和用于诊断燃油系统中的泄漏的系统和方法

    公开(公告)号：US20120097252A1

    公开(公告)日：2012-04-26

    申请号：US12952522

    申请日：2010-11-23

    申请人： Kurt D. Mc Lain ,  William R. Cadman

    发明人： Kurt D. Mc Lain ,  William R. Cadman

    IPC分类号： F16K21/04

    CPC分类号： F02M25/0809 ,  F02D41/0032 ,  F02D2041/225 ,  Y10T137/0318 ,  Y10T137/7837

    摘要： A control system includes a switching valve control module, a pressure determination module, and a fuel system diagnostic module. The switching valve control module actuates a switching valve in a fuel system of a vehicle between a first position and a second position, the first position venting a suction side of a vacuum pump in the fuel system to an atmosphere, the second position sealing the suction side of the vacuum pump from the atmosphere. The pressure determination module determines a first pressure on the suction side of the vacuum pump when the switching valve is in the first position, and determines a second pressure on the suction side of the vacuum pump when the switching valve is in the second position. The fuel system diagnostic module selectively diagnoses a fault in the vacuum pump based on the first pressure and the second pressure.

    摘要翻译： 控制系统包括切换阀控制模块，压力确定模块和燃料系统诊断模块。 切换阀控制模块致动在第一位置和第二位置之间的车辆的燃料系统中的切换阀，第一位置将燃料系统中的真空泵的吸入侧排出到大气中，第二位置将吸入 一侧的真空泵从大气层。 当切换阀处于第一位置时，压力确定模块确定真空泵的吸入侧上的第一压力，并且当切换阀处于第二位置时确定真空泵的吸入侧上的第二压力。 燃料系统诊断模块基于第一压力和第二压力选择性地诊断真空泵中的故障。