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公开(公告)号：US20120110982A1
公开(公告)日：2012-05-10
申请号：US12943097
申请日：2010-11-10
申请人： Mark E. McMackin , Raymond J. Sullivan , Richard L. Lewis , William L. Laga , Charles S. Payton
发明人： Mark E. McMackin , Raymond J. Sullivan , Richard L. Lewis , William L. Laga , Charles S. Payton
CPC分类号： F01N13/008 , F01N2340/00 , F01N2470/18 , F01N2560/00 , F01N2560/025
摘要： An exhaust assembly for a vehicle includes an exhaust pipe through which an exhaust gas flows substantially in a first direction. The exhaust pipe includes a central region. The assembly also includes a sensor in fluid communication with the exhaust pipe and an elongated tube extending from a first end toward a second end and disposed at least partially within the exhaust pipe. The first end of the tube receives at least a portion of the sensor. The tube includes an inlet opening and an outlet opening. The inlet opening generally faces the exhaust gas flowing within the central region in the first direction so that flow of the exhaust gas in the central region substantially directly enters the inlet opening. The tube directs the exhaust gas within the tube toward the sensor, and the exhaust gas within the tube flows out of the tube through the outlet opening.
摘要翻译： 用于车辆的排气组件包括排气管，废气基本上沿着第一方向流动。 排气管包括中心区域。 组件还包括与排气管流体连通的传感器和从第一端朝向第二端延伸并且至少部分地设置在排气管内的细长管。 管的第一端接收传感器的至少一部分。 该管包括入口和出口。 入口开口大致面对在第一方向上在中心区域内流动的废气，使得中心区域中的废气流基本上直接进入入口。 管将管内的排气朝向传感器引导，并且管内的废气从管中流出出口。
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公开(公告)号：US20130125533A1
公开(公告)日：2013-05-23
申请号：US13739145
申请日：2013-01-11
申请人： Raymond J. Sullivan , Mark E. McKackin , Richard L. Lewis , William L. Laga , Charles S. Payton
发明人： Raymond J. Sullivan , Mark E. McKackin , Richard L. Lewis , William L. Laga , Charles S. Payton
IPC分类号： F01N11/00
CPC分类号： F01N11/00 , F01N13/008 , F01N2340/00 , F01N2470/18 , F01N2560/025
摘要： An exhaust assembly for a vehicle includes an exhaust pipe through which an exhaust gas flows substantially in a first direction. The exhaust pipe includes a central region. The assembly also includes a sensor in fluid communication with the exhaust pipe and an elongated tube extending from a first end toward a second end and disposed at least partially within the exhaust pipe. The first end of the tube receives at least a portion of the sensor. The tube includes an inlet opening and an outlet opening. The inlet opening generally faces the exhaust gas flowing within the central region in the first direction so that some of the exhaust gas flowing in the central region enters the inlet opening. The tube directs the exhaust gas within the tube toward the sensor, and the exhaust gas within the tube flows out of the tube through the outlet opening.
摘要翻译： 用于车辆的排气组件包括排气管，废气基本上沿着第一方向流动。 排气管包括中心区域。 组件还包括与排气管流体连通的传感器和从第一端朝向第二端延伸并且至少部分地设置在排气管内的细长管。 管的第一端接收传感器的至少一部分。 该管包括入口和出口。 入口开口通常面向在第一方向上在中心区域内流动的废气，使得在中心区域中流动的一些废气进入入口。 管将管内的排气朝向传感器引导，并且管内的废气从管中流出出口。
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公开(公告)号：US08800264B2
公开(公告)日：2014-08-12
申请号：US13739145
申请日：2013-01-11
申请人： Raymond J. Sullivan , Mark E. McKackin , Richard L. Lewis , William L. Laga , Charles S. Payton
发明人： Raymond J. Sullivan , Mark E. McKackin , Richard L. Lewis , William L. Laga , Charles S. Payton
IPC分类号： F01N3/00
CPC分类号： F01N11/00 , F01N13/008 , F01N2340/00 , F01N2470/18 , F01N2560/025
摘要： An exhaust assembly for a vehicle includes an exhaust pipe through which an exhaust gas flows substantially in a first direction. The exhaust pipe includes a central region. The assembly also includes a sensor in fluid communication with the exhaust pipe and an elongated tube extending from a first end toward a second end and disposed at least partially within the exhaust pipe. The first end of the tube receives at least a portion of the sensor. The tube includes an inlet opening and an outlet opening. The inlet opening generally faces the exhaust gas flowing within the central region in the first direction so that some of the exhaust gas flowing in the central region enters the inlet opening. The tube directs the exhaust gas within the tube toward the sensor, and the exhaust gas within the tube flows out of the tube through the outlet opening.
摘要翻译： 用于车辆的排气组件包括排气管，废气基本上沿着第一方向流动。 排气管包括中心区域。 组件还包括与排气管流体连通的传感器和从第一端朝向第二端延伸并且至少部分地设置在排气管内的细长管。 管的第一端接收传感器的至少一部分。 该管包括入口和出口。 入口开口通常面向在第一方向上在中心区域内流动的废气，使得在中心区域中流动的一些废气进入入口。 管将管内的排气朝向传感器引导，并且管内的废气从管中流出出口。
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公开(公告)号：US6003494A
公开(公告)日：1999-12-21
申请号：US144041
申请日：1998-08-31
申请人： Kenneth P. DeGroot , Michael J. Reale , Bruce H. Teague , Raymond J. Sullivan , Dennis A. Soltis
发明人： Kenneth P. DeGroot , Michael J. Reale , Bruce H. Teague , Raymond J. Sullivan , Dennis A. Soltis
CPC分类号： F02P5/1455 , F02P5/045 , Y02T10/46
摘要： A method is provided for controlling spark advance based on a fuel modifier. Initially, engine fueling is reduced according to a known dynamic crankshaft fuel control (DCFC) methodology. As a result, the engine tends to run rougher. In response, spark advance is varied based on the overall fuel multiplier reduction from the DCFC methodology. For instance, a look-up table, or mathematical function based on the DCFC multiplier can be utilized as the basis for the spark advance.
摘要翻译： 提供了一种基于燃料改性剂来控制火花提前的方法。 最初，根据已知的动态曲轴燃料控制（DCFC）方法，发动机燃料减少。 因此，发动机往往越来越粗糙。 作为回应，根据DCFC方法的总体燃料倍增减少，火花提前是不同的。 例如，可以使用基于DCFC乘法器的查找表或数学函数作为火花提前的基础。
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公开(公告)号：US06253541B1
公开(公告)日：2001-07-03
申请号：US09371541
申请日：1999-08-10
IPC分类号： F01N300
CPC分类号： F01N11/007 , F01N13/009 , F01N13/0093 , F01N2550/02 , F02D41/1441 , F02D2250/36 , Y02T10/47
摘要： An exhaust system is provided including two catalysts and three oxygen sensors. The second catalyst is disposed downstream of the first catalyst. The first oxygen sensor is disposed upstream of the first catalyst, the second oxygen sensor is disposed downstream of the first catalyst and upstream of the second catalyst, and the third oxygen sensor is disposed downstream of the second catalyst. A goal voltage corresponding to a desired level of nitrous oxide and hydrocarbon within the exhaust is provided for the third oxygen sensor. This goal voltage is based on engine RPM and MAP. The engine controller compares the goal voltage to an actual voltage generated by sensing the level of oxygen downstream of the second catalyst. Based on this comparison, an error value between the goal voltage and the actual voltage is obtained. This error value is converted into a goal voltage for the first oxygen sensor. An actual voltage generated by the first oxygen sensor sensing the amount of oxygen upstream of the first catalyst is compared to the goal voltage derived from the third oxygen sensor. The difference between the goal voltage and actual voltage is used to modulate the pulse width of a signal sent to the fuel injectors of an engine such that the amount of fuel delivered by the fuel injectors is modified. The second oxygen sensor generates an actual voltage corresponding to the amount of oxygen the second oxygen sensor senses downstream of the first catalyst and upstream of the second catalyst. Changes in the actual voltage generated by the second oxygen sensor are compared to changes in the actual voltage generated by the first oxygen sensor. By monitoring the nature of theses changes as they relate to one another, the performance of the first catalyst can be determined.
摘要翻译： 提供了包括两个催化剂和三个氧传感器的排气系统。 第二催化剂设置在第一催化剂的下游。 第一氧传感器设置在第一催化剂的上游，第二氧传感器设置在第一催化剂的下游和第二催化剂的上游，并且第三氧传感器设置在第二催化剂的下游。 为第三氧传感器提供对应于排气中所需水平的一氧化二氮和烃的目标电压。 该目标电压基于发动机RPM和MAP。 发动机控制器将目标电压与通过感测第二催化剂下游的氧浓度而产生的实际电压进行比较。 基于该比较，获得目标电压与实际电压之间的误差值。 该误差值被转换为第一氧传感器的目标电压。 将感测第一催化剂上游氧的量的第一氧传感器产生的实际电压与从第三氧传感器得到的目标电压进行比较。 使用目标电压和实际电压之间的差来调制发送到发动机的燃料喷射器的信号的脉冲宽度，使得由燃料喷射器输送的燃料量被修改。 第二氧传感器产生对应于第二氧传感器感测第一催化剂下游和第二催化剂上游的氧气量的实际电压。 将由第二氧传感器产生的实际电压的变化与由第一氧传感器产生的实际电压的变化进行比较。 通过监测这些变化彼此相关的性质，可以确定第一催化剂的性能。
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公开(公告)号：US06256981B1
公开(公告)日：2001-07-10
申请号：US09371542
申请日：1999-08-10
IPC分类号： F01N300
CPC分类号： F02D41/1441 , F01N13/009 , F01N13/0093 , F02D41/148 , F02D2041/1409 , F02D2041/1419
摘要： An exhaust system is provided including two catalysts and three oxygen sensors. The second catalyst is disposed downstream of the first catalyst. The first oxygen sensor is disposed upstream of the first catalyst, the second oxygen sensor is disposed downstream of the first catalyst and upstream of the second catalyst, and the third oxygen sensor is disposed downstream of the second catalyst. A goal voltage corresponding to a desired level of oxygen within the exhaust is provided for the third oxygen sensor based on engine RPM and MAP. The engine controller compares the goal voltage to an actual voltage generated by the third oxygen sensor and an error value is obtained and converted into a goal voltage for the second oxygen sensor. The engine controller compares the goal voltage to an actual voltage generated by the second oxygen sensor and an error value is obtained and converted into a goal voltage for the first oxygen sensor. The engine controller compares the goal voltage to an actual voltage generated by the first oxygen sensor and an error value is obtained and converted into a percent-fuel correction by the engine controller.
摘要翻译： 提供了包括两个催化剂和三个氧传感器的排气系统。 第二催化剂设置在第一催化剂的下游。 第一氧传感器设置在第一催化剂的上游，第二氧传感器设置在第一催化剂的下游和第二催化剂的上游，并且第三氧传感器设置在第二催化剂的下游。 基于发动机RPM和MAP，为第三氧传感器提供对应于排气中期望的氧气水平的目标电压。 发动机控制器将目标电压与由第三氧传感器产生的实际电压进行比较，并获得误差值，并将其转换为第二氧传感器的目标电压。 发动机控制器将目标电压与由第二氧传感器产生的实际电压进行比较，并获得误差值，并将其转换为第一氧传感器的目标电压。 发动机控制器将目标电压与由第一氧传感器产生的实际电压进行比较，并获得误差值，并将其转换为发动机控制器的百分比燃料校正。
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公开(公告)号：US06234153B1
公开(公告)日：2001-05-22
申请号：US09416167
申请日：1999-10-11
申请人： Kenneth P. DeGroot , Bruce H. Teague , Michael J. Reale , Raymond J. Sullivan , Dennis A. Soltis , Mark J. Duty
发明人： Kenneth P. DeGroot , Bruce H. Teague , Michael J. Reale , Raymond J. Sullivan , Dennis A. Soltis , Mark J. Duty
IPC分类号： F02M2102
CPC分类号： F02M69/462 , F02D41/0042 , F02M55/00 , F02M55/007
摘要： A fuel control system is provided including a fuel tank, a purge vapor canister, a vapor line, and a fuel injector connected to an internal combustion engine. A purge vapor canister vent valve seals the purge vapor canister from the atmosphere such that the fuel tank, purge vapor canister, and fuel injector form a closed system. Upon initial starting of the engine, the purge vapor pressure is such that the purge vapor is drawn to the fuel injector from the dome portion of the fuel tank after passing through the purge vapor canister. Simultaneously therewith, the amount of liquid fuel is reducing or increasing by an amount of equally increasing or decreasing, respectively, vapor fuel so that a necessary mass flow rate is achieved to support combustion. As the amount of fuel vapors decreases to a negligible amount, combustion is supported by the atomization of liquid fuel. The delivery of the liquid fuel and vapor fuel is completed through the use of a fuel injector to accommodate both liquid and vapor form of fuel.
摘要翻译： 提供燃料控制系统，其包括燃料箱，净化蒸气罐，蒸气管线和连接到内燃机的燃料喷射器。 吹扫蒸汽罐排放阀将吹扫蒸汽罐与大气密封，使得燃料箱，吹扫蒸汽罐和燃料喷射器形成封闭系统。 在发动机初始启动时，吹扫蒸汽压力使得净化蒸汽在通过吹扫蒸气罐之后从燃料箱的圆顶部分被抽吸到燃料喷射器。 与此同时，液体燃料的量分别减少或增加蒸汽燃料同样增加或减少的量，使得实现必要的质量流量以支持燃烧。 随着燃料蒸汽的量减少到可忽略的量，燃烧由液体燃料的雾化支持。 通过使用燃料喷射器来完成液体燃料和蒸气燃料的输送，以适应液体和蒸气形式的燃料。
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公开(公告)号：US5947088A
公开(公告)日：1999-09-07
申请号：US144028
申请日：1998-08-31
申请人： Kenneth P. DeGroot , Michael J. Reale , Bruce H. Teague , Raymond J. Sullivan , Dennis A. Soltis
发明人： Kenneth P. DeGroot , Michael J. Reale , Bruce H. Teague , Raymond J. Sullivan , Dennis A. Soltis
CPC分类号： F02D41/10 , F02D41/1498 , F02D2200/1015
摘要： A method is provided for enriching a fuel to air ratio in an engine during acceleration based on a known fuel multiplier. Initially, the method retrieves the fuel multiplier from a dynamic crankshaft fuel control (DCFC) system. This system uses the fuel multiplier to reduce the amount of fuel delivered to the engine. When acceleration is desired, the method increases the overall acceleration enrichment values as a function of the DCFC fuel multiplier. Thus, when the vehicle is launched via a throttle tip-in while the DCFC system is active, the acceleration enrichment values are increased thereby improving drivability by having combustion taking place in a richer environment.
摘要翻译： 提供了一种基于已知的燃料倍增器在加速期间丰富发动机中的燃料与空气比的方法。 最初，该方法从动态曲轴燃料控制（DCFC）系统检索燃料倍增器。 该系统使用燃料倍增器来减少输送到发动机的燃料量。 当需要加速时，该方法增加作为DCFC燃料倍增器的函数的总加速度富集值。 因此，当DCFC系统处于活动状态时，通过节气门口进入车辆时，增加加速度增加值，从而通过在更丰富的环境中发生燃烧来提高驾驶性能。
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