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    Torque control scheme for low emission lean burn vehicle
    1.
    发明授权
    Torque control scheme for low emission lean burn vehicle 失效
    低排放稀燃车辆扭矩控制方案

    公开(公告)号：US06253546B1

    公开(公告)日：2001-07-03

    申请号：US09519202

    申请日：2000-03-06

    申请人： Jing Sun ,  Ilya Vladimir Kolmanovsky ,  Julia Helen Buckland ,  Mathew Alan Boesch

    发明人： Jing Sun ,  Ilya Vladimir Kolmanovsky ,  Julia Helen Buckland ,  Mathew Alan Boesch

    IPC分类号： F01N900

    CPC分类号： F01N3/0842 ,  F02D37/02 ,  F02D41/0065 ,  F02D41/0275 ,  F02D41/307 ,  F02D2041/141 ,  F02D2200/0406 ,  F02D2250/21 ,  Y02T10/24

    摘要： A method of minimizing torque disturbances in an internal combustion engine for a vehicle having a lean NOx trap that is periodically purged. The method includes the steps of generating feedforward values of first engine characteristics as a function of desired engine torque and generating feedback values of second engine characteristics as a function of intake manifold pressure. Target values are then calculated for predetermined engine variables based on the first and second engine characteristics. Engine variables are then set to the target values to compensate for torque disturbances resulting from the lean NOx trap purge cycle. According to the disclosed method, the feedforward path schedules the throttle, fuel rate and spark timing based on an engine model to produce a demanded engine torque. The feedback path then uses the values of fuel rate and spark timing to compensate for torque variations. This is accomplished by determining an error term as a function of a reference trajectory intake manifold pressure and measured intake manifold pressure.

    摘要翻译： 一种使具有周期性净化的贫NOx捕集器的车辆内燃机的转矩扰动最小化的方法。 该方法包括以下步骤：根据期望的发动机扭矩产生第一发动机特性的前馈值，并产生作为进气歧管压力的函数的第二发动机特性的反馈值。 然后基于第一和第二发动机特性为预定的发动机变量计算目标值。 然后将发动机变量设置为目标值，以补偿由稀NOx排气净化循环引起的扭矩扰动。 根据所公开的方法，前馈路径基于发动机模型调度节气门，燃料速率和火花正时，以产生所需的发动机扭矩。 然后，反馈路径使用燃料速率和火花正时的值来补偿扭矩变化。 这是通过确定作为参考轨迹进气歧管压力和测量的进气歧管压力的函数的误差项来实现的。

    Boosted direct injection stratified charge gasoline engines
    2.
    发明授权
    Boosted direct injection stratified charge gasoline engines 有权
    增压直喷式分层汽油发动机

    公开(公告)号：US06513484B1

    公开(公告)日：2003-02-04

    申请号：US09518304

    申请日：2000-03-03

    申请人： Julia Helen Buckland ,  Rodney John Tabaczynski ,  Ilya Vladimir Kolmanovsky ,  Jing Sun ,  Richard Walter Anderson

    发明人： Julia Helen Buckland ,  Rodney John Tabaczynski ,  Ilya Vladimir Kolmanovsky ,  Jing Sun ,  Richard Walter Anderson

    IPC分类号： F02B1700

    CPC分类号： F02B17/005 ,  F02B29/0425 ,  F02B2075/125 ,  F02D23/02 ,  F02M26/05 ,  F02M26/10 ,  F02M26/27 ,  Y02T10/123

    摘要： An arrangement of a four cycle internal combustion engine 7 is provided. In the preferred embodiment the engine 7 has a plurality of combustion chambers 18 having reciprocating pistons 22 mounted therein. A fuel injector 80 is provided for each combustion chamber. The fuel injector injects a stratified 80 charge into the combustion chamber 18 upon a compression stroke of the piston 22. An intake manifold 32 is provided to provide air to each combustion chamber. A charging device 38 is provided to pressurize the air within the intake manifold 32. Preferably the charging device is a variable geometry turbocharger 38. The pressurizing of the air within the intake manifold 32 allows the engine 7 to extend the stratified charge operation of the engine 7 and facilitates in increased gas mileage by allowing the engine 7 to stay in a stratified mode of operation longer than prior stratified charged internal combustion engines.

    摘要翻译： 提供四循环内燃机7的结构。 在优选实施例中，发动机7具有多个安装在其中的往复活塞22的燃烧室18。 为每个燃烧室设置燃料喷射器80。 燃料喷射器在活塞22的压缩行程时将分层的80电荷注入到燃烧室18中。提供进气歧管32以向每个燃烧室提供空气。 提供充电装置38以对进气歧管32内的空气加压。优选地，充气装置是可变几何涡轮增压器38.进气歧管32内的空气加压允许发动机7延长发动机的分层充气操作 并且通过允许发动机7比以前的分层充气内燃机更长时间地保持分层的操作模式，有助于提高燃油里程。

    Control of exhaust temperature in lean burn engines
    3.
    发明授权
    Control of exhaust temperature in lean burn engines 失效
    贫燃机排气温度控制

    公开(公告)号：US06314735B1

    公开(公告)日：2001-11-13

    申请号：US09511594

    申请日：2000-02-23

    申请人： Ilya Vladimir Kolmanovsky ,  Julia Helen Buckland ,  Jing Sun

    发明人： Ilya Vladimir Kolmanovsky ,  Julia Helen Buckland ,  Jing Sun

    IPC分类号： F02D2300

    CPC分类号： F02D41/024 ,  F02D23/00 ,  F02D41/0007 ,  F02D41/1446 ,  Y02T10/144 ,  Y02T10/26

    摘要： A method (100) and system for actively controlling the temperature of engine (10) exhaust gas entering an aftertreatment device and thereby controlling undesirable emissions. Through control of the turbine blade position of a variable geometry turbocharger (16), the temperature of the exhaust gas entering the aftertreatment device is maintained within the operating temperature window for the device, and at the same time, achieves the fuel economy benefits associated with turbocharging.

    摘要翻译： 一种用于主动地控制进入后处理装置的发动机（10）排气的温度并由此控制不期望的排放的方法（100）和系统。 通过控制可变几何涡轮增压器（16）的涡轮叶片位置，进入后处理装置的废气的温度保持在装置的操作温度窗口内，并且同时实现与 涡轮增压。

    Method and system for purge cycle management of a lean NOx trap
    5.
    发明授权
    Method and system for purge cycle management of a lean NOx trap 失效
    贫NOx捕集器的净化循环管理方法和系统

    公开(公告)号：US06370868B1

    公开(公告)日：2002-04-16

    申请号：US09542784

    申请日：2000-04-04

    申请人： Ilya Vladimir Kolmanovsky ,  Jing Sun

    发明人： Ilya Vladimir Kolmanovsky ,  Jing Sun

    IPC分类号： F01N300

    CPC分类号： F02D41/0275 ,  F01N3/0842 ,  F02D2200/0806

    摘要： Purging of a NOX trap is initiated if the estimated mass of NOX in the trap exceeds a NOX mass threshold value unless the estimated probability that the engine will be subjected to high load and high speed conditions exceed a probability threshold value, in which event the decision whether to initiate the purging of said trap is delayed for a predetermined time interval.

    摘要翻译： 如果捕集阱中NOX的估计质量超过NOX质量阈值，则排除NOX捕集阱，除非发动机将承受高负载和高速条件的估计概率超过概率阈值，在这种情况下，决定 是否启动所述陷阱的清除被延迟预定的时间间隔。

    Method and system for controlling a lean NOx trap purge cycle
    6.
    发明授权
    Method and system for controlling a lean NOx trap purge cycle 失效
    用于控制贫NOx捕集器清洗循环的方法和系统

    公开(公告)号：US06347512B1

    公开(公告)日：2002-02-19

    申请号：US09560866

    申请日：2000-04-28

    申请人： Ilya Vladimir Kolmanovsky ,  Jing Sun

    发明人： Ilya Vladimir Kolmanovsky ,  Jing Sun

    IPC分类号： F01N300

    CPC分类号： F02D41/1462 ,  F01N3/0814 ,  F01N3/0842 ,  F01N13/009 ,  F02D41/0275 ,  F02D41/3029 ,  F02D2200/0806

    摘要： An adaptive control method for managing a LNT purge cycle includes a model for predicting the feedgas NOx and CO emissions for both stratified and homogeneous engine operating conditions where the parameters of the model are updated based on real-time HEGO sensor measurements in order to adjust the model to ensure robustness of performance in determining the entry and exit condition for purge operation to thereby reduces HC/CO breakthrough, and to improve purge efficiency and fuel economy.

    摘要翻译： 用于管理LNT吹扫循环的自适应控制方法包括用于预测分层和均匀的发动机操作条件下的进料气NOx和CO排放的模型，其中模型的参数基于实时HEGO传感器测量来更新，以便调整 模型，以确保在确定清洗操作的进入和退出条件时的性能的鲁棒性，从而降低HC / CO突破，并提高吹扫效率和燃油经济性。

    Hybrid modeling and control of disc engines
    7.
    发明授权
    Hybrid modeling and control of disc engines 失效
    盘式发动机的混合建模与控制

    公开(公告)号：US06321157B1

    公开(公告)日：2001-11-20

    申请号：US09564334

    申请日：2000-08-14

    申请人： Jing Sun ,  Ilya Vladimir Kolmanovsky ,  Jeffrey Arthur Cook

    发明人： Jing Sun ,  Ilya Vladimir Kolmanovsky ,  Jeffrey Arthur Cook

    IPC分类号： F02B1700

    CPC分类号： F02D41/3029 ,  F02B17/005 ,  F02B2075/125 ,  F02D41/0072 ,  F02D41/1462 ,  F02D2041/1423 ,  F02D2041/1433 ,  F02D2041/1436 ,  F02D2041/389 ,  F02D2200/1004 ,  F02F3/26 ,  F02M26/46 ,  Y02T10/123 ,  Y02T10/47

    摘要： A method of modeling and controlling a direct injection stratified charge (DISC) engine coupled to a lean NOx trap that is periodically purged. The method comprises the steps of receiving as inputs a plurality of engine operating parameters and generating an indicated engine torque value, feedgas emission values, and an exhaust gas temperature value. Each of the output values is generated in accordance with a respective hybrid DISC engine model including an engine torque model, a feedgas emissions model, and an exhaust gas temperature model. The feedgas emissions model and exhaust gas temperature models further include submodels for generating output values as a function of either stratified or homogeneous engine operation.

    摘要翻译： 一种建模和控制直接喷射分层电荷（DISC）发动机的方法，其连接到周期性清除的贫NOx捕集器。 该方法包括以下步骤：接收多个发动机操作参数作为输入并产生指示的发动机扭矩值，进料气发射值和废气温度值。 每个输出值根据包括发动机转矩模型，进料气体排放模型和排气温度模型的各自的混合DISC发动机模型来生成。 进料气体排放模型和废气温度模型还包括用于产生作为分层或均质发动机操作的函数的输出值的子模型。

    Coordinated control of valve timing during mode transitions of direct injection stratified charge engines
    8.
    发明授权
    Coordinated control of valve timing during mode transitions of direct injection stratified charge engines 有权
    直喷式分层充气发动机模式转换期间气门正时的协调控制

    公开(公告)号：US06378484B1

    公开(公告)日：2002-04-30

    申请号：US09571063

    申请日：2000-05-15

    申请人： John D. Russell ,  Ilya Vladimir Kolmanovsky ,  Jessy W. Grizzle ,  Jing Sun

    发明人： John D. Russell ,  Ilya Vladimir Kolmanovsky ,  Jessy W. Grizzle ,  Jing Sun

    IPC分类号： F02B1700

    CPC分类号： F02D13/0219 ,  F01L1/34 ,  F01L2800/00 ,  F02B17/005 ,  F02B2075/125 ,  F02D41/3029 ,  F02D41/307 ,  F02D2041/001 ,  F02D2041/002 ,  Y02T10/123 ,  Y02T10/18

    摘要： A system and method for controlling a direct injection stratified charge engine during transitions between homogeneous and stratified operating modes position the throttle to a position corresponding to the desired operating mode to begin the transition and use valve timing control to provide a rapid change in air flow to traverse the gap between acceptable air/fuel ratios associated with the homogeneous and stratified modes. The invention reduces torque variations while improving engine performance by coordinating control of an electronic throttle and valve timing to reduce or eliminate step changes in fuel previously required to traverse the air/fuel ratio gap between modes. Primary reliance on air flow and fuel flow to reduce torque variations and improve driveability reduces reliance on spark timing and associated performance penalties.

    摘要翻译： 用于在均匀和分层的操作模式之间的过渡期间控制直接喷射分层充气发动机的系统和方法将油门定位到对应于期望的操作模式的位置，以开始转换，并使用气门正时控制来提供空气流的快速变化 穿过与均匀和分层模式相关的可接受的空气/燃料比之间的间隙。 本发明通过协调电子节气门和气门正时的控制来改善发动机的性能来减小扭矩变化，以减少或消除先前需要的燃料中的空气/燃料比间隙之间所需的燃料的阶跃变化。 主要依靠空气流量和燃料流量来减少扭矩变化并提高驾驶性能，降低了对火花计时和相关性能损失的依赖。