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    Temperature compensation system for minimizing sensor offset variations
    3.
    发明授权
    Temperature compensation system for minimizing sensor offset variations 有权
    用于最小化传感器偏移变化的温度补偿系统

    公开(公告)号：US06658345B2

    公开(公告)日：2003-12-02

    申请号：US09861341

    申请日：2001-05-18

    申请人： Paul R. Miller

    发明人： Paul R. Miller

    IPC分类号： F02M2507

    CPC分类号： F02D41/28 ,  F02D41/0072 ,  F02D41/2474 ,  F02D2041/1433 ,  F02M26/23 ,  F02M26/33 ,  F02M26/47 ,  F02M26/61

    摘要： A temperature compensation system for minimizing sensor offset variations includes an engine controller having stored therein a model of sensor operating behavior over temperature. In one embodiment, the sensor is a &Dgr;P sensor for sensing a differential pressure across a flow restriction mechanism disposed between an exhaust manifold and an intake manifold of an internal combustion engine. In this embodiment, the &Dgr;P sensor is preferably thermally coupled to a structural component of the engine whose operating temperature is readily discernable; e.g., the engine cooling system. Alternatively, the &Dgr;P sensor may include a temperature sensor coupled thereto. In either case, the engine controller is preferably responsive to transitions of the key switch to gather “hot” and “cold” temperature data under zero &Dgr;P conditions. This information is then used to constantly update the &Dgr;P sensor model.

    摘要翻译： 用于最小化传感器偏移变化的温度补偿系统包括其中存储有温度的传感器操作行为模型的发动机控制器。 在一个实施例中，传感器是用于感测设置在内燃机的排气歧管和进气歧管之间的流动限制机构上的压差的DeltaP传感器。 在该实施例中，DeltaP传感器优选热耦合到发动机的结构部件，其工作温度易于识别; 例如发动机冷却系统。 或者，DeltaP传感器可以包括耦合到其上的温度传感器。 在任一情况下，发动机控制器优选地响应钥匙开关的转换以在零DeltaP条件下收集“热”和“冷”温度数据。 该信息随后用于不断更新DeltaP传感器模型。

    System for decoupling EGR flow and turbocharger swallowing capacity/efficiency control mechanisms
    4.
    发明授权
    System for decoupling EGR flow and turbocharger swallowing capacity/efficiency control mechanisms 有权
    用于去耦EGR流量和涡轮增压器吞吐能力/效率控制机制的系统

    公开(公告)号：US06408834B1

    公开(公告)日：2002-06-25

    申请号：US09773654

    申请日：2001-01-31

    申请人： Lary J. Brackney ,  Thomas A. Dollmeyer ,  Paul R. Miller ,  Chuan He

    发明人： Lary J. Brackney ,  Thomas A. Dollmeyer ,  Paul R. Miller ,  Chuan He

    IPC分类号： F02M2507

    CPC分类号： F02D41/0052 ,  F02B37/18 ,  F02B37/24 ,  F02D9/04 ,  F02D41/0007 ,  F02D41/0065 ,  F02D41/1401 ,  F02D2041/1419 ,  F02D2041/1422 ,  F02D2041/1427 ,  F02M26/05 ,  F02M26/10 ,  F02M26/23 ,  F02M26/47 ,  Y02T10/144 ,  Y02T10/47

    摘要： A system for decoupling EGR flow and turbocharger swallowing capacity/efficiency control mechanisms includes a multiple-input multiple-output (MIMO) transform manager coupled to one or more of an EGR valve, an exhaust throttle and a variable geometry turbocharger (VGT) actuator of an internal combustion engine. The MIMO transform manager is responsive to commanded charge flow and EGR fraction parameters to decouple the EGR/exhaust throttle and VGT control parameters such that these control mechanisms may be controlled individually and independently of each other. One transform output is provided to a first compensator for controlling EGR flow and/or exhaust throttle operation as a function of charge flow error. The other transform output is provided to a second independent compensator for controlling VGT operation also as a function of charge flow error. Both compensators are configured to provide for transient compensator gain adjustment based on the degree of charge flow error, and the VGT compensator is further configured to provide for transient compensator gain adjustment based on a ratio of commanded fueling and oxygen/fuel ratio. The resulting control strategy provides for independent control of EGR flow/exhaust throttle and a VGT actuator, thereby resulting in better and more consistent control over mass charge flow.

    摘要翻译： 用于去耦EGR流和涡轮增压器吞咽能力/效率控制机构的系统包括多输入多输出（MIMO）变换管理器，其耦合到一个或多个EGR阀，排气节流阀和可变几何涡轮增压器（VGT）致动器 内燃机 MIMO变换管理器响应于指令的充电流量和EGR分数参数来解耦EGR /排气节流阀和VGT控制参数，使得这些控制机构可以彼此独立地且独立地被控制。 一个变换输出被提供给第一补偿器，用于控制作为电荷流动误差的函数的EGR流和/或排气节流操作。 另一变换输出提供给第二独立补偿器，用于控制VGT操作，也作为充电流量误差的函数。 两个补偿器被配置为基于充电流量误差的程度来提供瞬时补偿器增益调整，并且VGT补偿器还被配置为基于指令加油和氧气/燃料比的比率来提供瞬时补偿器增益调整。 所得到的控制策略提供了EGR流量/排气节流阀和VGT致动器的独立控制，从而导致对质量流量的更好和更一致的控制。

    Emission control in an automotive engine
    5.
    发明授权
    Emission control in an automotive engine 有权
    汽车发动机排放控制

    公开(公告)号：US06360159B1

    公开(公告)日：2002-03-19

    申请号：US09589297

    申请日：2000-06-07

    申请人： Paul R. Miller ,  Mike Barbieri ,  Chaun He

    发明人： Paul R. Miller ,  Mike Barbieri ,  Chaun He

    IPC分类号： F02D4114

    CPC分类号： F02D41/005 ,  F02D41/146 ,  F02D41/1488 ,  F02D41/401 ,  F02D2041/1409 ,  F02D2250/36 ,  Y02T10/44 ,  Y02T10/47

    摘要： A system and method is provided for controlling noxious emissions, such as NOx, from an internal combustion engine. The invention utilizes a closed loop and an open loop control algorithm to control one or more compensating levers, each compensating lever corresponding to a controllable engine operating parameter that when changed yields a change in the NOx emissions. In the closed loop control approach, the mass flow rate of the NOx is compared to a predetermined threshold to obtain a delta value. This delta value is applied through a PID controller to generate a corresponding change in one or more compensating levers. In the open loop portion, predetermined relationships are generated between one or more compensating levers and changes in a measure of the noxious emissions. Current values for one or more of the levers are compared against nominal values, and the change in these values are evaluated using predetermined relationships to produce a number of NOx delta values. These NOx delta values can be combined into a composite delta value that is applied to the inverse of the predetermined relationship for one of the compensating levers to determine a change command for that lever.

    摘要翻译： 提供了一种用于从内燃机控制诸如NOx的有害排放物的系统和方法。 本发明利用闭环和开环控制算法来控制一个或多个补偿杆，每个补偿杆对应于可变的发动机操作参数，当变化时产生NOx排放的变化。 在闭环控制方法中，将NOx的质量流量与预定阈值进行比较以获得增量值。 该增量值通过PID控制器施加以在一个或多个补偿杆中产生相应的变化。 在开环部分中，在一个或多个补偿杆之间产生预定的关系以及有害排放的测量的变化。 将一个或多个杠杆的当前值与标称值进行比较，并且使用预定关系来评估这些值的变化以产生若干NOx增量值。 这些NOx增量值可以组合成复合增量值，其被应用于补偿杆之一的预定关系的倒数，以确定该杠杆的变化命令。

    Diesel engine white smoke control system
    6.
    发明授权
    Diesel engine white smoke control system 失效
    柴油机烟雾控制系统

    公开(公告)号：US5014509A

    公开(公告)日：1991-05-14

    申请号：US457965

    申请日：1989-12-27

    申请人： Louis C. Broering ,  Paul R. Miller

    发明人： Louis C. Broering ,  Paul R. Miller

    IPC分类号： F01N3/025 ,  F01N3/033 ,  F01N9/00 ,  F02B3/06

    CPC分类号： F01N3/025 ,  F01N3/0335 ,  F01N9/002 ,  F01N2230/02 ,  F02B3/06 ,  Y02T10/47

    摘要： A system for reducing the emission of condensed unburned fuel from diesel engines is disclosed. The system includes an exhaust gas flow passage having a particulate filter positioned therein for trapping particulate matter entrained within the exhaust gas and a burner for selectively elevating the exhaust gas temperature. Sensors are provided for continuously monitoring the ambient air temperature and the exhaust gas temperature and relaying values indicative of these temperatures to a control module. The control module in turn compares these determined values to predetermined minimal values. If both the ambient air temperature and the exhaust gas temperature are less than the predetermined minimal values, the control module will activate the burner in order to raise the exiting exhaust gas temperature to reduce the emission of condensed unburned fuel.

    摘要翻译： 公开了一种用于减少来自柴油发动机的未燃烧燃料的排放的系统。 该系统包括具有位于其中的颗粒过滤器的排气流动通道，用于捕集携带在废气中的颗粒物质和用于选择性地提高废气温度的燃烧器。 传感器被提供用于连续监测环境空气温度和废气温度，并将指示这些温度的值中继到控制模块。 控制模块又将这些确定的值与预定的最小值进行比较。 如果环境空气温度和废气温度均小于预定的最小值，则控制模块将激活燃烧器以提高排出的废气温度以减少冷凝的未燃烧燃料的排放。

    EGR delivery and control system using dedicated full authority compressor
    7.
    发明授权
    EGR delivery and control system using dedicated full authority compressor 失效
    EGR输送和控制系统采用专用全权限压缩机

    公开(公告)号：US6164071A

    公开(公告)日：2000-12-26

    申请号：US925579

    申请日：1997-09-08

    申请人： Josh S. Shao ,  Long Kung Hwang ,  Paul R. Miller ,  Stephen J. Charlton

    发明人： Josh S. Shao ,  Long Kung Hwang ,  Paul R. Miller ,  Stephen J. Charlton

    IPC分类号： F02B29/04 ,  F02B33/00 ,  F02B37/00 ,  F02B75/02 ,  F02M25/07

    CPC分类号： F02B33/00 ,  F02B29/0406 ,  F02B37/00 ,  F02B2075/025 ,  F02M26/05 ,  F02M26/08 ,  F02M26/23 ,  F02M26/34 ,  F02M26/40 ,  Y02T10/144

    摘要： An exhaust gas recirculation and control system is provided for an internal combustion engine, wherein a portion of engine exhaust gas flow is recirculated through an EGR duct to engine intake air. The recirculated exhaust gas is pumped through the EGR duct by an EGR compressor driven by a dedicated EGR drive that is independently controllable. Because the EGR drive is independently powered and controlled, the EGR flow rate capacity of the system is not dictated by, or limited, by factors such as engine exhaust flow rate. A controller modulates power delivery to the drive means in response to at least one operating condition parameter in order to achieve a desired EGR flow rate. In order to further optimize efficiency, the EGR compressor is preferably a discrete displacement pump which is controllably drivable in a pulse-capture mode, wherein each intake of the EGR compressor is timed synchronously with exhaust pulses in the exhaust manifold.

    摘要翻译： 提供了一种用于内燃机的排气再循环和控制系统，其中发动机废气流的一部分通过EGR管道再循环到发动机进气。 再循环废气通过由独立可控制的专用EGR驱动器驱动的EGR压缩机泵送通过EGR管道。 由于EGR驱动是独立供电和控制的，系统的EGR流量容量不受发动机排气流量等因素的限制。 控制器响应于至少一个操作条件参数来调制对驱动装置的功率传递，以便实现期望的EGR流量。 为了进一步优化效率，EGR压缩机优选是在脉冲捕获模式下可控地驱动的离散排量泵，其中EGR压缩机的每个进气与排气歧管中的排气脉冲同步地定时。

    Automated active variable geometry turbocharger diagnosis system
    10.
    发明授权
    Automated active variable geometry turbocharger diagnosis system 有权
    自动主动变量几何涡轮增压器诊断系统

    公开(公告)号：US06543227B2

    公开(公告)日：2003-04-08

    申请号：US09774961

    申请日：2001-01-31

    申请人： Chuan He ,  Paul R. Miller

    发明人： Chuan He ,  Paul R. Miller

    IPC分类号： F02D2300

    CPC分类号： F02D23/00 ,  F02B37/24 ,  F02D41/0007 ,  F02D41/1408 ,  F02D41/22 ,  Y02T10/144 ,  Y02T10/40

    摘要： The present invention relates to an engine diagnostic system for detecting malfunctions in an engine system having a variable geometry turbine exhaust system. The engine diagnosis system includes an electronic control module adapted to periodically initiate a preprogrammed variable geometry turbine diagnostic routine. The diagnostic routine includes the operations of sending a sinusoidal control signal to a pressure regulator, determining the configuration of the variable geometry turbine, determining the pressure of a capsule, calculating the configuration of the variable geometry turbine as a function of the sinusoidal control signal, calculating the pressure of the capsule as a function of the sinusoidal control signal, determining if a pressure sensor is in calibration, determining if the pressure regulator is malfunctioning, determining if the variable geometry turbine position sensor is in calibration, determining if the variable geometry turbine is malfunctioning, and displaying the results of the test.

    摘要翻译： 本发明涉及一种用于检测具有可变几何涡轮机排气系统的发动机系统中的故障的发动机诊断系统。 引擎诊断系统包括适于周期性启动预编程的可变几何涡轮诊断程序的电子控制模块。 诊断程序包括将正弦控制信号发送到压力调节器，确定可变几何涡轮机的配置，确定胶囊的压力，根据正弦控制信号计算可变几何涡轮机的配置的操作， 计算胶囊的压力作为正弦控制信号的函数，确定压力传感器是否在校准中，确定压力调节器是否发生故障，确定可变几何涡轮机位置传感器是否在校准中，确定可变几何涡轮机 发生故障，并显示测试结果。