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公开(公告)号：US08551214B2
公开(公告)日：2013-10-08
申请号：US13043157
申请日：2011-03-08
IPC分类号： B01D53/02
CPC分类号： G01M3/04 , F02M25/0818 , F02M25/089
摘要： An emissions control system is provided that comprises a fuel tank, a hydrocarbon filter element, and a three-way valve coupled between the hydrocarbon filter element and the atmosphere. The three-way valve is comprised of three ports, a purge port, a reference port, and a sealed port, and enables identification of degradation of the emissions control system. The arrangement of the ports on the valve enables a simplified testing method that reduces background errors caused by transitioning between various operating positions.
摘要翻译： 提供一种排放控制系统，其包括燃料箱，碳氢化合物过滤器元件和联接在碳氢化合物过滤元件和大气之间的三通阀。 三通阀由三个端口，净化端口，参考端口和密封端口组成，并且能够识别排放控制系统的劣化。 阀上的端口配置使得能够简化测试方法，从而减少由各种操作位置之间的过渡引起的背景错误。
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公开(公告)号：US08371272B1
公开(公告)日：2013-02-12
申请号：US13355793
申请日：2012-01-23
申请人： Douglas Raymond Martin , Ann Irene Sipes , Robert Roy Jentz , Aed Mohammad Dudar , Mark W. Peters , Guopeng Hu
发明人： Douglas Raymond Martin , Ann Irene Sipes , Robert Roy Jentz , Aed Mohammad Dudar , Mark W. Peters , Guopeng Hu
IPC分类号： F02M33/02
CPC分类号： F02M25/0809 , B60K6/445 , B60K15/03519 , B60K2015/03571 , F02D29/02 , Y02T10/6239
摘要： A method for testing a vapor purge system (VPS) for an internal combustion engine, and a hybrid vehicle having the VPS include a controller for closing a first valve coupled between a carbon canister of the VPS and the ambient environment, motoring the engine to pull a vacuum on the VPS, closing a second valve coupled between the carbon canister and the engine, and monitoring pressure in the VPS. The VPS has a carbon canister coupled to the engine via a first valve and coupled to atmosphere via a second valve, and a pressure transducer.
摘要翻译： 一种用于测试用于内燃机的蒸汽吹扫系统（VPS）的方法，以及具有VPS的混合动力车辆包括用于关闭联接在VPS的碳罐和周围环境之间的第一阀的控制器，使发动机拉动 VPS上的真空，关闭连接在碳罐和发动机之间的第二阀，并监测VPS中的压力。 VPS具有通过第一阀耦合到发动机并经由第二阀和压力传感器耦合到大气的碳罐。
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3.发明授权公开(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
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。
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公开(公告)号：US09027532B2
公开(公告)日：2015-05-12
申请号：US13291561
申请日：2011-11-08
CPC分类号： F02M25/0809 , F02M25/089
摘要： Methods and systems are provided for generating sufficient vacuum to enable a leak detection routine. While a fuel tank pressure is within mechanical limits, fuel vapors are purged from a canister to an engine with an isolation valve open to generate a desired level of vacuum in the fuel tank. Thereafter, the fuel tank is isolated and leak detection is performed concurrent to the purging.
摘要翻译： 提供了用于产生足够的真空以实现泄漏检测程序的方法和系统。 当燃料箱压力在机械极限内时，燃料蒸汽从罐排出到发动机，隔离阀打开以在燃料箱中产生所需的真空水平。 此后，燃料箱被隔离，同时进行泄漏检测。
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公开(公告)号：US20130032127A1
公开(公告)日：2013-02-07
申请号：US13198299
申请日：2011-08-04
IPC分类号： F02M33/02
CPC分类号： B60K15/03504 , B60K15/03519 , B60K2015/03514 , B60W10/06 , F02M25/0809 , F02M25/089 , F02N11/003
摘要： Methods and systems are provided for operating an engine to generate vacuum for a subsequent leak detection routine. During a selected key-off condition, a starter motor is operated to spin the engine unfueled and generate intake vacuum for the leak detection. Fuel vapors drawn during the spinning are stored in an auxiliary canister that is purged along with a main canister during purging conditions.
摘要翻译： 提供了用于操作发动机以产生后续泄漏检测程序的真空的方法和系统。 在选择的关闭状态期间，起动马达被操作以使发动机不通风，并产生用于泄漏检测的进气真空。 在纺纱过程中抽出的燃料蒸气被储存在辅助罐中，该辅助罐在净化条件期间与主罐一起被清除。
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公开(公告)号：US08336526B1
公开(公告)日：2012-12-25
申请号：US13356823
申请日：2012-01-24
申请人： Douglas Raymond Martin , Ann Irene Sipes , Robert Roy Jentz , Aed Mohammad Dudar , Mark W. Peters , Guopeng Hu
发明人： Douglas Raymond Martin , Ann Irene Sipes , Robert Roy Jentz , Aed Mohammad Dudar , Mark W. Peters , Guopeng Hu
CPC分类号： F02M25/0809 , B60K6/445 , B60K15/03519 , B60K2015/03571 , F02D29/02 , Y02T10/6239
摘要： A method for testing a vapor purge system (VPS), and the vehicle having the VPS, including a controller for measuring a VPS pressure, closing a first valve coupling a VPS carbon canister and the environment, decreasing VPS pressure if it is greater than a threshold, and monitoring VPS pressure for a time period when the engine is at rest and the vehicle is operating. The pressure is decreased by opening a second valve coupling the fuel tank and the engine while the engine is running, and closing the second valve when the pressure is below the threshold. Another method for testing a VPS includes closing a first valve, closing a second valve, measuring the VPS pressure to provide a reference pressure with an associated profile, and monitoring VPS pressure compared to the profile for a time period.
摘要翻译： 一种用于测试蒸汽吹扫系统（VPS）的方法，以及具有VPS的车辆，包括用于测量VPS压力的控制器，闭合联接VPS碳罐和环境的第一阀，如果VPS压力大于 阈值和监视发动机静止和车辆运行的时间段内的VPS压力。 通过在发动机运转时打开连接燃料箱和发动机的第二阀来降低压力，并且当压力低于阀值时关闭第二阀。 用于测试VPS的另一种方法包括关闭第一阀，闭合第二阀，测量VPS压力以提供具有相关轮廓的参考压力，以及在一段时间内与轮廓相比监测VPS压力。
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7.发明申请公开(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。
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公开(公告)号：US08739766B2
公开(公告)日：2014-06-03
申请号：US13198299
申请日：2011-08-04
IPC分类号： F02M1/00
CPC分类号： B60K15/03504 , B60K15/03519 , B60K2015/03514 , B60W10/06 , F02M25/0809 , F02M25/089 , F02N11/003
摘要： Methods and systems are provided for operating an engine to generate vacuum for a subsequent leak detection routine. During a selected key-off condition, a starter motor is operated to spin the engine unfueled and generate intake vacuum for the leak detection. Fuel vapors drawn during the spinning are stored in an auxiliary canister that is purged along with a main canister during purging conditions.
摘要翻译： 提供了用于操作发动机以产生后续泄漏检测程序的真空的方法和系统。 在选择的关闭状态期间，起动马达被操作以使发动机不通风，并产生用于泄漏检测的进气真空。 在纺纱过程中抽出的燃料蒸气被储存在辅助罐中，该辅助罐在净化条件期间与主罐一起被清除。
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公开(公告)号：US20130112176A1
公开(公告)日：2013-05-09
申请号：US13291561
申请日：2011-11-08
IPC分类号： F02M33/02
CPC分类号： F02M25/0809 , F02M25/089
摘要： Methods and systems are provided for generating sufficient vacuum to enable a leak detection routine. While a fuel tank pressure is within mechanical limits, fuel vapors are purged from a canister to an engine with an isolation valve open to generate a desired level of vacuum in the fuel tank. Thereafter, the fuel tank is isolated and leak detection is performed concurrent to the purging.
摘要翻译： 提供了用于产生足够的真空以实现泄漏检测程序的方法和系统。 当燃料箱压力在机械极限内时，燃料蒸汽从罐排出到发动机，隔离阀打开以在燃料箱中产生所需的真空水平。 此后，燃料箱被隔离，同时进行泄漏检测。
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公开(公告)号：US20120211087A1
公开(公告)日：2012-08-23
申请号：US13032268
申请日：2011-02-22
申请人： Aed Mohammad Dudar , Robert Roy Jentz , Timothy DeBastos , James Michael Kerns , Michael Igor Kluzner
发明人： Aed Mohammad Dudar , Robert Roy Jentz , Timothy DeBastos , James Michael Kerns , Michael Igor Kluzner
CPC分类号： F02M25/0809 , F02D41/003 , F02D41/0032 , G01M15/09 , Y10T137/0379 , Y10T137/7722
摘要： Methods and systems are provided for monitoring a fuel vapor recovery system including a fuel tank isolation valve coupled between a fuel tank and a canister. During selected conditions, the valve is modulated and pressure pulsations in the fuel vapor recovery system are monitored. Valve degradation is identified based on correlations between the valve modulation and the resultant pressure pulsations.
摘要翻译： 提供了用于监测燃料蒸气回收系统的方法和系统，其包括联接在燃料箱和罐之间的燃料箱隔离阀。 在选定的条件下，调节阀门并监测燃油蒸气回收系统中的压力脉动。 基于阀调节和合成压力脉动之间的相关性来识别阀门降级。
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