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117 条记录 (耗时 0.022 秒)

    System and method for determination of EGR flow rate
    21.
    发明授权
    System and method for determination of EGR flow rate 有权
    用于确定EGR流量的系统和方法

    公开(公告)号：US06601387B2

    公开(公告)日：2003-08-05

    申请号：US10010986

    申请日：2001-12-05

    申请人： Mark Allen Zurawski ,  Phillip F. Rimnac ,  Peter Zagone

    发明人： Mark Allen Zurawski ,  Phillip F. Rimnac ,  Peter Zagone

    IPC分类号： F02B3344

    CPC分类号： F02D41/0072 ,  F02B29/0425 ,  F02B29/0493 ,  F02B37/00 ,  F02B37/24 ,  F02D2041/0075 ,  F02M26/05 ,  F02M26/10 ,  F02M26/16 ,  F02M26/28 ,  F02M26/33 ,  F02M26/47 ,  Y02T10/47

    摘要： A system and method for determining EGR flow in a multi-cylinder internal combustion engine include determining specific heat of the exhaust gas based on current engine operating conditions and determining EGR flow rate based on the determined specific heat and a signal provided by a sensor. In one embodiment, a species tracking model is used to determine the amount of various species within the exhaust gas which may include oxygen, nitrogen, carbon dioxide, and water, for example, to determine the current specific heat, which is compared to a reference specific heat for the sensor, the difference being used to adjust the sensor value and determine the EGR mass flow rate. The species tracking model uses a simplified combustion model to estimate the amount of each specie in the exhaust gas based on various engine operating parameters, such as fuel, air/fuel ratio, and turbo boost, for example.

    摘要翻译： 用于确定多气缸内燃机中的EGR流量的系统和方法包括基于当前的发动机工作条件确定废气的比热，并且基于所确定的比热和由传感器提供的信号来确定EGR流量。 在一个实施例中，物种跟踪模型用于确定废气中可以包括氧气，氮气，二氧化碳和水的各种物质的量，例如以确定当前的比热，其与参考值 用于传感器的比热，差异用于调节传感器值并确定EGR质量流量。 物种跟踪模型使用简化的燃烧模型来估计例如基于各种发动机操作参数（例如燃料，空气/燃料比和涡轮增压）的废气中的每种物质的量。

    Method for determining the rate of recirculated exhaust gas at the inlet of a cylinder of an internal combustion engine, and engine implementing such a method
    24.
    发明授权
    Method for determining the rate of recirculated exhaust gas at the inlet of a cylinder of an internal combustion engine, and engine implementing such a method 有权
    用于确定内燃机的气缸入口处的再循环废气的速率的方法，以及执行这种方法的发动机

    公开(公告)号：US09279362B2

    公开(公告)日：2016-03-08

    申请号：US13878129

    申请日：2011-09-22

    申请人： Bruno Serra ,  Sylvain Hourlier

    发明人： Bruno Serra ,  Sylvain Hourlier

    IPC分类号： F02B47/08 ,  F02D41/00 ,  F02D41/18

    CPC分类号： F02B47/08 ,  F02D41/0072 ,  F02D41/187 ,  F02D2041/0075 ,  F02D2200/04 ,  F02D2200/0402 ,  F02D2200/0406 ,  Y02T10/47

    摘要： A method determining a rate of recirculated exhaust gas (EGR rate) at an inlet of a cylinder of an internal combustion engine at a moment t, the exhaust gas being conveyed in a recirculation duct connecting an exhaust line of the engine to an intake line, and the EGR rate being equal to the ratio between flow rate of the recirculated gas and total gas flow rate in the intake line at a location of the intake line in question and at the moment in question. The method: a) determines at which moment t_intro preceding the moment t the gas, having arrived at the inlet of the cylinder at moment t, was fed into the intake line; b) determines the EGR rate at an outlet of the recirculation line to the intake line at the moment t_intro; and c) determines the EGR rate at the inlet to the cylinder at moment t based on the EGR rate at the outlet of the recirculation line to the intake line at moment t_intro, as determined in b).

    摘要翻译： 一种在时刻t确定内燃机的气缸入口处的再循环废气（EGR率）的速率的方法，所述排气在将发动机的排气管线连接到进气管线的再循环管道中输送， 并且EGR率等于所讨论的进气管线的位置处的所述再循环气体的流量与进气管线中的总气体流量之间的比率。 方法：a）确定在时刻t之前的t_intro到达在时刻t的气缸入口处的气体被送入进气管线; b）确定在t_intro时刻到进气管线的再循环管线出口处的EGR率; 以及c）根据在b）中确定的时刻t_intro处的时刻t_intro处基于在进入管线的再循环管线的出口处的EGR率来确定在时刻t在气缸入口处的EGR率。

    METHOD AND APPARATUS FOR CONTROLLING AN ENGINE WITH EGR AND A TURBOCHARGER
    25.
    发明申请
    METHOD AND APPARATUS FOR CONTROLLING AN ENGINE WITH EGR AND A TURBOCHARGER 审中-公开
    用于控制EGR和涡轮增压器的发动机的方法和装置

    公开(公告)号：US20160061125A1

    公开(公告)日：2016-03-03

    申请号：US14781633

    申请日：2013-04-05

    申请人： VOLVO TRUCK CORPORATION

    发明人： Johannes FOUFAS ,  Dan STENQUIST

    IPC分类号： F02D41/00 ,  F02D41/14

    CPC分类号： F02D41/0052 ,  F02D23/02 ,  F02D41/0007 ,  F02D41/1401 ,  F02D2041/0075 ,  F02D2041/1409 ,  F02D2041/1431 ,  F02D2200/0414 ,  F02M26/05 ,  Y02T10/144 ,  Y02T10/47

    摘要： A control system is provided for controlling an internal combustion engine. The internal combustion engine includes a turbocharging unit and an exhaust gas recirculation assembly. The control system is adapted to issue a boost pressure control signal. The control system includes a boost pressure controller adapted to determine the boost pressure control signal. The boost pressure controller has a first response time. The control system is adapted to issue an exhaust gas recirculation control signal for controlling an amount of recirculated exhaust gas via the exhaust gas recirculation assembly. The control system includes an exhaust gas recirculation controller adapted to determine the exhaust gas recirculation control signal independently of the boost pressure control signal. The exhaust gas recirculation controller has a second response time, wherein the first response time differs from the second response time.

    摘要翻译： 提供控制内燃机的控制系统。 内燃机包括涡轮增压单元和废气再循环组件。 控制系统适于发出增压压力控制信号。 控制系统包括适于确定升压压力控制信号的升压压力控制器。 升压压力控制器具有第一响应时间。 控制系统适于发出废气再循环控制信号，用于经由废气再循环组件控制再循环废气的量。 控制系统包括排气再循环控制器，其适于独立于升压压力控制信号确定废气再循环控制信号。 排气再循环控制器具有第二响应时间，其中第一响应时间不同于第二响应时间。

    System and method for estimating engine exhaust manifold operating parameters
    26.
    发明授权
    System and method for estimating engine exhaust manifold operating parameters 有权
    用于估计发动机排气歧管运行参数的系统和方法

    公开(公告)号：US09062635B2

    公开(公告)日：2015-06-23

    申请号：US13244550

    申请日：2011-09-25

    申请人： John N. Chi ,  Indranil Brahma

    发明人： John N. Chi ,  Indranil Brahma

    IPC分类号： F02B33/44 ,  F02M25/07 ,  G01M15/00 ,  F02D41/00 ,  F02D41/14

    CPC分类号： G01M15/106 ,  F02D41/0072 ,  F02D41/1446 ,  F02D41/1448 ,  F02D2041/0075 ,  F02D2200/0406 ,  F02M26/05 ,  F02M26/28 ,  F02M26/47 ,  Y02T10/47

    摘要： A system and method are provided for estimating an operating parameter of an exhaust manifold of an engine. In the system, a flow value is determined that corresponds to a flow rate of exhaust gas through an EGR conduit fluidly coupled between the exhaust manifold and the intake manifold. The EGR conduit includes an exhaust gas cooler disposed in-line with the EGR conduit and a property of the exhaust gas exiting an exhaust gas outlet of the cooler is measured. The operating parameter of the exhaust manifold is estimated as a function of at least the flow value and the property of the exhaust gas exiting the exhaust gas outlet of the cooler. Illustratively, the operating parameter of the exhaust manifold may be exhaust manifold pressure and/or temperature.

    摘要翻译： 提供了一种用于估计发动机的排气歧管的操作参数的系统和方法。 在该系统中，确定对应于通过流体耦合在排气歧管和进气歧管之间的EGR导管的废气流量的流量值。 EGR导管包括排放气体冷却器，其与EGR管道成一直线设置，并且测量离开冷却器的废气出口的废气的性质。 排气歧管的操作参数被估计为至少离开冷却器的废气出口的排气的流量值和性质的函数。 示例性地，排气歧管的操作参数可以是排气歧管压力和/或温度。

    METHOD TO CONTROL AND DIAGNOSE AN EXHAUST GAS HEAT EXCHANGER
    27.
    发明申请
    METHOD TO CONTROL AND DIAGNOSE AN EXHAUST GAS HEAT EXCHANGER 有权
    控制和诊断排气换热器的方法

    公开(公告)号：US20130312390A1

    公开(公告)日：2013-11-28

    申请号：US13479457

    申请日：2012-05-24

    申请人： Angel Fernando Porras ,  Douglas Raymond Martin

    发明人： Angel Fernando Porras ,  Douglas Raymond Martin

    IPC分类号： F01N9/00 ,  F02M25/07 ,  F01N3/02

    CPC分类号： F01N5/02 ,  F01N9/00 ,  F01N2240/02 ,  F01N2410/03 ,  F01N2900/1404 ,  F01P2025/44 ,  F01P2025/52 ,  F02D41/1446 ,  F02D41/18 ,  F02D41/22 ,  F02D2041/0075 ,  Y02T10/16 ,  Y02T10/47

    摘要： A method for controlling an engine having an exhaust gas heat exchanger includes measuring air mass flow, engine coolant temperature (ECT), exhaust gas temperature (EGT), heat exchanger coolant temperature (HECT), and engine speed; and operating a valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed. A vehicle has an engine and an exhaust heat recovery system with an exhaust gas heat exchanger and a valve configured to control exhaust gas flow. A controller for the vehicle is configured to (i) measure air mass flow, ECT, EGT, HECT, and engine speed, and (ii) operate the valve to selectively provide exhaust gas flow through the exhaust gas heat exchanger based on air mass flow, ECT, EGT, HECT, and engine speed.

    摘要翻译： 用于控制具有排气热交换器的发动机的方法包括测量空气质量流量，发动机冷却剂温度（ECT），排气温度（EGT），热交换器冷却剂温度（HECT）和发动机转速; 并且操作阀以选择性地提供基于空气质量流量，ECT，EGT，HECT和发动机转速通过排气热交换器的废气流。 车辆具有发动机和排气热回收系统，其具有排气热交换器和构造成控制废气流的阀。 用于车辆的控制器被配置为（i）测量空气质量流量，ECT，EGT，HECT和发动机速度，以及（ii）操作阀以选择性地提供基于空气质量流量通过排气热交换器的废气流 ，ECT，EGT，HECT和发动机转速。

    Intake air temperature rationality diagnostic
    29.
    发明授权
    Intake air temperature rationality diagnostic 有权
    进气温度合理性诊断

    公开(公告)号：US08353201B2

    公开(公告)日：2013-01-15

    申请号：US11821591

    申请日：2007-06-22

    申请人： Kurt D. McLain ,  Wenbo Wang

    发明人： Kurt D. McLain ,  Wenbo Wang

    IPC分类号： G06F19/00

    CPC分类号： F02D41/222 ,  F02D41/187 ,  F02D2041/0075 ,  F02D2200/0402 ,  F02D2200/0408 ,  F02D2200/0414 ,  G01K7/42 ,  G01K15/00 ,  G01K15/007 ,  G01M15/09 ,  Y02T10/40

    摘要： A method of determining whether a fault condition of an intake air temperature (IAT) sensor of an engine is present includes estimating a first manifold absolute pressure (MAP) based on a previously estimated first MAP and an estimated first mass air flow (MAF) as a function of the previously estimated first MAP and estimating a second MAP based on a previously estimated second MAP and a currently measured MAF. An IAT difference is determined based on the first MAP and the second MAP. Whether the fault condition of the IAT sensor is present is determined based on the IAT difference.

    摘要翻译： 确定发动机的进气温度（IAT）传感器的故障状况是否存在的方法包括基于先前估计的第一MAP和估计的第一质量空气流（MAF）估计第一歧管绝对压力（MAP）作为 预先估计的第一MAP的功能，并且基于先前估计的第二MAP和当前测量的MAF来估计第二MAP。 基于第一MAP和第二MAP确定IAT差异。 基于IAT差异确定​​IAT传感器的故障状态是否存在。