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公开(公告)号：US08630786B2
公开(公告)日：2014-01-14
申请号：US12823281
申请日：2010-06-25
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。
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公开(公告)号：US20110315127A1
公开(公告)日：2011-12-29
申请号：US12823281
申请日：2010-06-25
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。
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3.发明申请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：US20130184963A1
公开(公告)日：2013-07-18
申请号：US13350141
申请日：2012-01-13
IPC分类号： G01M15/09
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。
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4.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
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。
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5.发明授权公开(公告)号：US08353273B2
公开(公告)日：2013-01-15
申请号：US12683772
申请日：2010-01-07
申请人： Kurt D. Mc Lain , William R. Cadman , David Edward Prout , Miles K. Maxey , Robert Jackson , Kenneth J. Kalvelage
发明人： Kurt D. Mc Lain , William R. Cadman , David Edward Prout , Miles K. Maxey , Robert Jackson , Kenneth J. Kalvelage
IPC分类号： F02M33/02
CPC分类号： F02M25/0809 , Y10T137/86397
摘要： A control module and method for operating the same includes a diurnal control valve module that opens a diurnal control valve (DCV) and an evaporative leak check module (ELCM) diverter valve control module that switches on an ELCM diverter valve. The control module includes a correlation module performs a correlation of a ELCM pressure signal and a fuel tank pressure signal and that generates a fault signal in response to the correlation when the DCV valve is open and the ELCM diverter valve is on.
摘要翻译： 用于操作该控制模块的控制模块和方法包括打开日间控制阀（DCV）的日间控制阀模块以及接通ELCM分流阀的蒸发泄漏检查模块（ELCM）分流阀控制模块。 控制模块包括相关模块，其执行ELCM压力信号和燃料箱压力信号的相关性，并且当DCV阀打开并且ELCM分流阀接通时响应于相关性而产生故障信号。
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公开(公告)号：US20110011472A1
公开(公告)日：2011-01-20
申请号：US12683772
申请日：2010-01-07
申请人： Kurt D. Mc Lain , William R. Cadman , David Edward Prout , Miles K. Maxey , Robert Jackson , Kenneth J. Kalvelage
发明人： Kurt D. Mc Lain , William R. Cadman , David Edward Prout , Miles K. Maxey , Robert Jackson , Kenneth J. Kalvelage
IPC分类号： F16K31/48
CPC分类号： F02M25/0809 , Y10T137/86397
摘要： A control module and method for operating the same includes a diurnal control valve module that opens a diurnal control valve (DCV) and an evaporative leak check module (ELCM) diverter valve control module that switches on an ELCM diverter valve. The control module includes a correlation module performs a correlation of a ELCM pressure signal and a fuel tank pressure signal and that generates a fault signal in response to the correlation when the DCV valve is open and the ELCM diverter valve is on.
摘要翻译： 用于操作该控制模块的控制模块和方法包括打开日间控制阀（DCV）的日间控制阀模块以及接通ELCM分流阀的蒸发泄漏检查模块（ELCM）分流阀控制模块。 控制模块包括相关模块，其执行ELCM压力信号和燃料箱压力信号的相关性，并且当DCV阀打开并且ELCM分流阀接通时响应于相关性而产生故障信号。
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公开(公告)号：US08122758B2
公开(公告)日：2012-02-28
申请号：US12355926
申请日：2009-01-19
申请人： Zhong Wang , Miles K. Maxey , James D. Ethington , Eric M. Hall , Brian Spohn , David Edward Prout
发明人： Zhong Wang , Miles K. Maxey , James D. Ethington , Eric M. Hall , Brian Spohn , David Edward Prout
IPC分类号： G01M3/26
CPC分类号： F02M25/0809
摘要： A leak diagnostic system for a vehicle comprises a tank pressure module and a leak diagnostic module. The tank pressure module selectively outputs first and second fuel tank pressures when an engine is shut down and when engine vacuum is greater than a predetermined engine vacuum, respectively. The leak diagnostic module selectively diagnoses a leak in a fuel vapor purge valve based on the second fuel tank pressure when the first fuel tank pressure is less than a first predetermined pressure.
摘要翻译： 一种用于车辆的泄漏诊断系统包括油箱压力模块和泄漏诊断模块。 当发动机关闭并且当发动机真空大于预定的发动机真空时，油箱压力模块分别选择性地输出第一和第二燃料箱压力。 当第一燃料箱压力小于第一预定压力时，泄漏诊断模块基于第二燃料箱压力选择性地诊断燃料蒸气吹扫阀中的泄漏。
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公开(公告)号：US20090211340A1
公开(公告)日：2009-08-27
申请号：US12355926
申请日：2009-01-19
申请人： Zhong Wang , Miles K. Maxey , James D. Ethington , Eric M. Hall , Brian Spohn , David Edward Prout
发明人： Zhong Wang , Miles K. Maxey , James D. Ethington , Eric M. Hall , Brian Spohn , David Edward Prout
IPC分类号： G01M3/04
CPC分类号： F02M25/0809
摘要： A leak diagnostic system for a vehicle comprises a tank pressure module and a leak diagnostic module. The tank pressure module selectively outputs first and second fuel tank pressures when an engine is shut down and when engine vacuum is greater than a predetermined engine vacuum, respectively. The leak diagnostic module selectively diagnoses a leak in a fuel vapor purge valve based on the second fuel tank pressure when the first fuel tank pressure is less than a first predetermined pressure.
摘要翻译： 一种用于车辆的泄漏诊断系统包括油箱压力模块和泄漏诊断模块。 当发动机关闭并且当发动机真空大于预定的发动机真空时，油箱压力模块分别选择性地输出第一和第二燃料箱压力。 当第一燃料箱压力小于第一预定压力时，泄漏诊断模块基于第二燃料箱压力选择性地诊断燃料蒸气吹扫阀中的泄漏。
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9.发明申请ALGORITHM TO DIAGNOSE LEAKS OR BLOCKAGES DOWNSTREAM OF THE SECONDARY AIR INJECTION REACTION (SAIR) PRESSURE SENSOR 有权诊断二次空气注射反应（SAIR）压力传感器的泄漏或阻塞的下降的算法公开(公告)号：US20090198457A1
公开(公告)日：2009-08-06
申请号：US12205313
申请日：2008-09-05
申请人： Ian J. Mac Ewen , Martin L. Hall , Lawrence O. Murray , Julia C. Grow , Richard A. Van Camp , David Edward Prout , Igor Anilovich
发明人： Ian J. Mac Ewen , Martin L. Hall , Lawrence O. Murray , Julia C. Grow , Richard A. Van Camp , David Edward Prout , Igor Anilovich
CPC分类号： F01N3/22 , F01N9/00 , Y02A50/2322
摘要： A control module and method for an exhaust system of an engine can include a secondary air intake (SAI) pressure module that monitors SAI pressure. An accumulation module can accumulate an SAI string length based on the monitored SAI pressure. A calculation module can determine an average SAI string length based on the accumulated SAI string length. A determination module can determine an operating characteristic of the vehicle exhaust based on the average SAI string length.
摘要翻译： 用于发动机排气系统的控制模块和方法可以包括监测SAI压力的二次进气（SAI）压力模块。 积累模块可以基于监测的SAI压力累积SAI字符串长度。 计算模块可以基于累积的SAI字符串长度来确定平均SAI字符串长度。 确定模块可以基于平均SAI串长度来确定车辆排气的操作特性。
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10.发明授权Algorithm to diagnose leaks or blockages downstream of the secondary air injection reaction (SAIR) pressure sensor 有权用于诊断二次空气注射反应（SAIR）压力传感器下游泄漏或堵塞的算法公开(公告)号：US08136347B2
公开(公告)日：2012-03-20
申请号：US12205313
申请日：2008-09-05
申请人： Ian J. Mac Ewen , Martin L. Hall , Lawrence O Murray , Julia C. Grow , Richard A. Van Camp , David Edward Prout , Igor Anilovich
发明人： Ian J. Mac Ewen , Martin L. Hall , Lawrence O Murray , Julia C. Grow , Richard A. Van Camp , David Edward Prout , Igor Anilovich
IPC分类号： F01N3/00
CPC分类号： F01N3/22 , F01N9/00 , Y02A50/2322
摘要： A control module and method for an exhaust system of an engine can include a secondary air intake (SAI) pressure module that monitors SAI pressure. An accumulation module can accumulate an SAI string length based on the monitored SAI pressure. A calculation module can determine an average SAI string length based on the accumulated SAI string length. A determination module can determine an operating characteristic of the vehicle exhaust based on the average SAI string length.
摘要翻译： 用于发动机排气系统的控制模块和方法可以包括监测SAI压力的二次进气（SAI）压力模块。 积累模块可以基于监测的SAI压力累积SAI字符串长度。 计算模块可以基于累积的SAI字符串长度来确定平均SAI字符串长度。 确定模块可以基于平均SAI串长度来确定车辆排气的操作特性。
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