Controlling an engine operating parameter during transients in a control data input by selection of the time interval for calculating the derivative of the control data input
    1.
    发明授权
    Controlling an engine operating parameter during transients in a control data input by selection of the time interval for calculating the derivative of the control data input 有权
    通过选择计算控制数据输入的导数的时间间隔来控制控制数据输入中的瞬变期间的发动机工作参数

    公开(公告)号:US06973382B2

    公开(公告)日:2005-12-06

    申请号:US10809235

    申请日:2004-03-25

    摘要: Desired engine fueling data FQL—MFD—TQL is processed by a derivative variable time function (40) embodied in an algorithm to develop a data value EGR—MFD—DER representing the time derivative of desired fueling. The algorithm comprises certain selectable parameters (EGR—DTS, EGR—MFD—KF, EGR—MFD—KD). An iteration of the algorithm includes processing FQL—MFD—TQL according to a first function (40A) to yield a first data value and according to a second function (40B) to yield a second data value. A third function (40C) subtracts the second data value from the first to yield a data value for the time derivative that forms one input to a map (42). A second input to the map is a data value for mass airflow (MAF—GMS). The map provides data for calculating the set point of an EGR valve (36). The invention provides improved control of EGR during fueling transients.

    摘要翻译: 期望的发动机燃料供应数据FQL通过体现在算法中的导数可变时间函数(40)来处理TQL以产生数据值EGR < - > SUB> MFD DER表示所需加油的时间导数。 该算法包括某些可选择的参数(EGR, - DTS, - LF&gt; MFD&lt;&lt;&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; > - KD)。 算法的迭代包括根据第一函数(40A)处理FQL MFD TQL以产生第一数据值并根据第二函数(40B )以产生第二数据值。 第三功能(40C)从第一功能(40C)中减去第二数据值,以产生对地图(42)形成一个输入的时间导数的数据值。 地图的第二个输入是质量气流的数据值(MAF - GMS)。 地图提供用于计算EGR阀(36)的设定点的数据。 本发明提供了在加油瞬变期间对EGR的改进的控制。

    Engine cold start aid malfunction alert
    2.
    发明授权
    Engine cold start aid malfunction alert 有权
    发动机冷启动辅助故障警报

    公开(公告)号:US07188597B2

    公开(公告)日:2007-03-13

    申请号:US11147550

    申请日:2005-06-07

    IPC分类号: F02P19/02

    CPC分类号: F02P19/027 F02D2041/228

    摘要: A motor vehicle engine (10) has a glow plug system (14) for aiding combustion of fuel in combustion chambers of the engine when the engine is cold and an ignition switch (16) is operated to crank the engine. A first circuit signals the cold start aid to commence operation of the cold start aid in anticipation of engine starting. A second circuit indicates a fault in the cold start aid. A third circuit, that includes a warning signal device (38), activates the warning signal device to inform a driver of the vehicle of the indicated fault upon the first circuit having signaled the cold start aid to commence operation and the second circuit having indicated a fault in the cold start aid.

    摘要翻译: 机动车辆发动机(10)具有电热塞系统(14),用于在发动机冷时使燃料燃烧在发动机的燃烧室中,并且操作点火开关(16)以起动发动机。 第一回路发信号通知冷启动辅助装置以开始启动冷启动辅助装置的运行。 第二个电路表示冷起动辅助装置中的故障。 包括警告信号装置(38)的第三电路激活警告信号装置,以在第一电路通知冷启动辅助装置开始运行的情况下通知车辆的指示故障的车辆,并且第二电路指示为 冷启动辅助故障。

    Method and system for calculating brake torque produced by a turbocharged engine
    3.
    发明授权
    Method and system for calculating brake torque produced by a turbocharged engine 有权
    用于计算由涡轮增压发动机产生的制动力矩的方法和系统

    公开(公告)号:US07289899B2

    公开(公告)日:2007-10-30

    申请号:US11363802

    申请日:2006-02-28

    IPC分类号: B60K41/04

    摘要: Torque being produced by a turbocharged internal combustion engine (12) during acceleration under load is calculated by processing (34) a value for actual boost MAP and a value MAP_NOMINAL selected from a map (32) that contains data values for boost that would prevail during steady state engine operation at a respective speed with the engine developing a respective torque. The selection is made using engine speed N and estimated torque TQI_SP that possesses some inaccuracy due to some disparity between the data value for actual boost and the data value selected from the map. The selection yields a boost disparity value that is used along with the estimated torque to select from a torque map (36) a value for calculated torque that provides a better correlation with actual torque than does the estimated torque during acceleration.

    摘要翻译: 通过处理(34)实际升压MAP的值和从地图(32)中选择的值MAP_NOMINAL来计算在负载下的加速期间由涡轮增压内燃机(12)产生的扭矩,所述值包含在 发动机以相应的速度稳定地发动发动机相应的转矩。 使用发动机速度N和由于实际升压的数据值与从地图选择的数据值之间的一些差异而具有一些不准确性的估计转矩TQI_SP进行选择。 该选择产生与推定扭矩一起使用的升力差异值,以从扭矩图(36)中选择与加速期间的估计转矩相比提供与实际扭矩更好相关性的计算转矩的值。

    SYSTEM AND METHOD OF CONTROLLING MAXIMUM HYDROCARBON INJECTION FOR DIESEL PARTICULATE FILTER REGENERATION
    4.
    发明申请
    SYSTEM AND METHOD OF CONTROLLING MAXIMUM HYDROCARBON INJECTION FOR DIESEL PARTICULATE FILTER REGENERATION 有权
    控制柴油颗粒过滤器再生的最大油注入系统和方法

    公开(公告)号:US20130160430A1

    公开(公告)日:2013-06-27

    申请号:US13702067

    申请日:2010-06-04

    IPC分类号: F01N3/025

    摘要: A method of providing hydrocarbons to an engine exhaust for regenerating a diesel particulate filter within an exhaust system of a diesel engine. A mass flow rate of exhaust gas within an exhaust system is determined. A mass flow rate of oxygen within the exhaust gas entering the diesel oxidation catalyst is determined. A set point indicative of an allowable mass flow rate of oxygen within the exhaust gas exiting the diesel oxidation catalyst is received. A hydrocarbon threshold that may be injected into the exhaust system is calculated. Hydrocarbons are injected into the exhaust system upstream of the diesel oxidation catalyst, wherein the injected hydrocarbons do not exceed the calculated threshold amount of hydrocarbons.

    摘要翻译: 将柴油发动机的排气系统内的柴油机微粒过滤器再生的发动机排气用碳氢化合物的方法。 确定排气系统内废气的质量流量。 确定进入柴油机氧化催化剂的废气中的氧质量流量。 接收表示离开柴油机氧化催化剂的废气中允许的氧气质量流量的设定点。 计算可以注入到排气系统中的烃阈值。 将碳氢化合物注入到柴油机氧化催化剂上游的排气系统中,其中注入的烃不超过所计算的烃的阈值量。

    QUICK-HEATING OF A UREA SUPPLY CONDUIT FOR AN ENGINE EXHAUST AFTER-TREATMENT SYSTEM
    6.
    发明申请
    QUICK-HEATING OF A UREA SUPPLY CONDUIT FOR AN ENGINE EXHAUST AFTER-TREATMENT SYSTEM 审中-公开
    用于发动机排放后处理系统的尿素供应管的快速加热

    公开(公告)号:US20110030349A1

    公开(公告)日:2011-02-10

    申请号:US12535023

    申请日:2009-08-04

    IPC分类号: F02D45/00 F01P5/10 F01N3/10

    摘要: A urea supply conduit (68) has a wall of good thermal conductivity. Urea solution in liquid phase is sucked out of a tank (24) through conduit (68) and delivered to a point of use (22) in an engine exhaust after-treatment system (18) through which products of combustion are conveyed from engine combustion chambers (16) to atmosphere. Liquid engine coolant is circulated through a coolant conduit (66) that has a wall of good thermal conductivity placed side-by-side and in physical association with the urea supply conduit wall to form a thermal conduction path for heat transfer between coolant in the coolant conduit and urea in the urea supply conduit, more quickly thawing any frozen urea.

    摘要翻译: 尿素供应管道(68)具有良好导热性的壁。 液相中的尿素溶液通过管道(68)从罐(24)中吸出并被输送到发动机排气后处理系统(18)中的使用点(22),从发动机排气后处理系统 室(16)到大气。 液体发动机冷却剂通过冷却剂管道(66)循环,冷却剂管道(66)具有并排放置的良好导热壁并且与尿素供应导管壁物理相关联以形成用于在冷却剂中的冷却剂之间的热传递的热传导路径 导管和尿素在尿素供应管道中,更快地解冻任何冷冻尿素。

    POST THERMAL CONTROL DEVICE FOR USE WITH A NOx SLIP CATALYST
    8.
    发明申请
    POST THERMAL CONTROL DEVICE FOR USE WITH A NOx SLIP CATALYST 审中-公开
    用于使用NOx滑动催化剂的后热控制装置

    公开(公告)号:US20140360169A1

    公开(公告)日:2014-12-11

    申请号:US14372483

    申请日:2012-01-19

    申请人: Adam C. Lack

    发明人: Adam C. Lack

    IPC分类号: F01N3/20 F01N11/00 F01N9/00

    摘要: A system and method for treating diesel exhaust in a diesel exhaust system, and specifically for improved NOx conversion efficiency during particulate filter regeneration, is disclosed. The exhaust gas treatment system includes a diesel oxidation catalyst (DOC); a diesel particulate filter (DPF) fluidly coupled to the DOC; a mixer fluidly coupled to the DOC and DPF, a thermal control device (TCD) positioned after the DPF, a NOx slip catalyst (NSC), at least one temperature sensor (TS), wherein the thermal control device reduces the temperature of the exhaust gas stream. The thermal control device used in conjunction with the NOx slip catalyst provides for improved overall exhaust system NOx conversion efficiency during active DPF regeneration.

    摘要翻译: 公开了一种用于处理柴油机排气系统中的柴油机排气的系统和方法,并且具体地用于在微粒过滤器再生期间提高NOx转化效率。 废气处理系统包括柴油氧化催化剂(DOC); 流体耦合到DOC的柴油微粒过滤器(DPF); 流体耦合到DOC和DPF的混合器,位于DPF之后的热控制装置(TCD),NOx滑动催化剂(NSC),至少一个温度传感器(TS)),其中热控制装置降低排气温度 气流。 与NOx滑移催化剂结合使用的热控制装置提供在主动DPF再生期间改进的总排气系统NOx转化效率。

    Engine torque calculation
    9.
    发明授权
    Engine torque calculation 有权
    发动机扭矩计算

    公开(公告)号:US06584391B2

    公开(公告)日:2003-06-24

    申请号:US09911266

    申请日:2001-07-23

    申请人: Adam C. Lack

    发明人: Adam C. Lack

    IPC分类号: B60K4104

    摘要: A torque calculator and method for providing real time data that measures net torque output of a running engine in a motor vehicle. Gross torque production is calculated using engine speed and fueling data. Torque losses due to accessories, pumping, and friction are calculated and subtracted from gross torque production, and inertial torque is also accounted for to yield engine net running torque. The engine net running torque data and engine speed data are processed according to a filter algorithm that compensates the engine net running torque data for engine speed. Transmission shifting is controlled by the speed-compensated engine net running torque.

    摘要翻译: 一种用于提供实时数据的扭矩计算器和方法,其测量机动车辆中运行的发动机的净扭矩输出。 使用发动机转速和加油数据计算总扭矩产量。 计算由于配件,泵送和摩擦引起的扭矩损失,并从总转矩产生中减去惯性力矩,以计算发动机的运转转矩。 发动机净运行扭矩数据和发动机转速数据根据用于发动机转速的发动机净运行转矩数据的滤波算法进行处理。 变速器换档由速度补偿发动机的运行转矩控制。

    System and method of controlling maximum hydrocarbon injection for diesel particulate filter regeneration
    10.
    发明授权
    System and method of controlling maximum hydrocarbon injection for diesel particulate filter regeneration 有权
    柴油颗粒过滤器再生控制最大烃注入的系统和方法

    公开(公告)号:US09228473B2

    公开(公告)日:2016-01-05

    申请号:US13702067

    申请日:2010-06-04

    摘要: A method of providing hydrocarbons to an engine exhaust for regenerating a diesel particulate filter within an exhaust system of a diesel engine. A mass flow rate of exhaust gas within an exhaust system is determined. A mass flow rate of oxygen within the exhaust gas entering the diesel oxidation catalyst is determined. A set point indicative of an allowable mass flow rate of oxygen within the exhaust gas exiting the diesel oxidation catalyst is received. A hydrocarbon threshold that may be injected into the exhaust system is calculated. Hydrocarbons are injected into the exhaust system upstream of the diesel oxidation catalyst, wherein the injected hydrocarbons do not exceed the calculated threshold amount of hydrocarbons.

    摘要翻译: 将柴油发动机的排气系统内的柴油机微粒过滤器再生的发动机排气用碳氢化合物的方法。 确定排气系统内废气的质量流量。 确定进入柴油机氧化催化剂的废气中的氧质量流量。 接收表示离开柴油机氧化催化剂的废气中允许的氧气质量流量的设定点。 计算可以注入到排气系统中的烃阈值。 将碳氢化合物注入到柴油机氧化催化剂上游的排气系统中,其中注入的烃不超过所计算的烃的阈值量。