Fluid pump control apparatus and method
    2.
    发明授权
    Fluid pump control apparatus and method 失效
    流体泵控制装置及方法

    公开(公告)号:US06293757B1

    公开(公告)日:2001-09-25

    申请号:US09227578

    申请日:1999-01-08

    IPC分类号: F04B1902

    摘要: An amount of pressurized fluid is pumped by a high-pressure fluid pump to a common rail in an engine by using a multi-functional control circuit (ECU) that improves the controllability of fluid pumped to the common rail such that a target pressure in the common rail is achieved notwithstanding the loss of fuel injected from the common rail into the engine's cylinders nor the variety of pressure losses or deviations occurring throughout the system. The ECU sets a base fluid pumping amount based on a target value of pressure in the common rail and an amount of fluid ejected from the common rail. The ECU also calculates a fluid pumping amount required to cause the actual pressure of the common rail to follow a change of a target pressure of the common rail according to the amount of change of the target pressure. The ECU sets the sum of the basic fluid pumping amount, the required fluid pumping amount and a carried-over amount of fluid, as a set value of the fluid pumping amount to achieve target pressure in the common rail. If the set value of the fluid pumping amount exceeds a predetermined capacity of the fluid pump, the ECU sets a difference between the set value of the fluid pumping amount and the predetermined capacity as the carried-over amount of fluid that is carried over to a next setting of fluid pumping amount, thereby reflecting the difference therebetween in a next set value of the fluid pumping amount so that the target pressure in the common rail may be achieved via a plurality of pumping sequences including any carried over fluid amounts.

    摘要翻译: 通过使用提高泵送到共轨的流体的可控制性的多功能控制电路(ECU),将一定数量的加压流体由高压流体泵泵送到发动机的共轨中,使得在 尽管从共轨注入发动机气缸的燃料损失也导致了共轨,也没有在整个系统中发生各种压力损失或偏差。 ECU基于共轨中的压力的​​目标值和从共轨排出的流体的量来设定基础液体泵送量。 ECU还计算使共轨的实际压力根据目标压力的变化量跟随共轨的目标压力的变化所需的流体泵送量。 ECU将基本流体泵送量,所需的流体排出量和流过量的总和设定为流体泵送量的设定值,以实现共轨中的目标压力。 如果流体泵送量的设定值超过流体泵的预定容量,则ECU将流体泵送量的设定值和规定容量之间的差作为搬运到 从而在流体泵送量的下一设定值之间反映它们之间的差异,使得可以经由包括任何承载的流体量的多个泵送序列来实现共轨中的目标压力。

    Automatic compliance device, automatic compliance method, automobile, and storage medium
    3.
    发明授权
    Automatic compliance device, automatic compliance method, automobile, and storage medium 有权
    自动符合装置,自动符合方法,汽车和存储介质

    公开(公告)号:US07107142B2

    公开(公告)日:2006-09-12

    申请号:US10631814

    申请日:2003-08-01

    IPC分类号: G01M15/00

    摘要: Parameters for control of engine operation are operated for each operating state for establishment of compliance, whereby the output values are made compliance targets. This compliance operation is performed by first determining the adjustment sequences and adjustment directions for a plurality of parameters for reducing the output values exceeding the compliance targets and then sequentially operating these parameters in accordance with the determined adjustment sequence and in the determined adjustment direction.

    摘要翻译: 为每个运行状态运行用于控制发动机运行的参数以建立合规性,从而使输出值成为合规目标。 通过首先确定多个参数的调整顺序和调整方向以减少超过合规性目标的输出值,然后根据所确定的调整顺序和确定的调节方向依次操作这些参数来执行该顺应性操作。

    Soot generation amount estimation apparatus for internal combustion engine
    4.
    发明授权
    Soot generation amount estimation apparatus for internal combustion engine 有权
    用于内燃机的烟尘产生量估计装置

    公开(公告)号:US07930922B2

    公开(公告)日:2011-04-26

    申请号:US11792665

    申请日:2006-07-13

    IPC分类号: G01N7/00

    摘要: A soot generation amount estimation apparatus obtains a generation speed of a precursor of soot (accordingly, the concentration of the precursor) in consideration of formation of the precursor from fuel, thermal decomposition of the formed precursor, and formation of soot from the formed precursor, and estimates a generation speed of soot (accordingly, the concentration of soot (the generation amount of soot)) in consideration of formation of soot from the precursor, which depends on the concentration of the precursor, and oxidation of the formed soot. The apparatus employs a reaction model in which the reaction process in which soot is generated from fuel is divided into two steps; i.e., a reaction process in which a precursor is generated from fuel and a reaction process in which soot is generated from the precursor. Thus, phenomena, such as a “delay in soot generation” in the reaction process in which soot is generated from fuel, can be accurately simulated.

    摘要翻译: 烟炱发生量估计装置考虑到来自燃料的前体的形成,所形成的前体的热分解和来自所形成的前体的烟灰的形成,获得烟炱前体的生成速度(相应地,前体的浓度) 并且考虑到来自前体的烟灰的形成(其取决于前体的浓度)和形成的烟灰的氧化,估计烟灰的产生速度(因此,烟灰的浓度(烟灰的产生量))。 该装置采用反应模型,其中从燃料产生烟灰的反应过程分为两个步骤; 即其中从燃料产生前体的反应过程和从前体产生烟灰的反应过程。 因此,可以精确地模拟在燃料中产生烟灰的反应过程中的“烟灰产生的延迟”等现象。

    Control Apparatus for Internal Combustion Engine
    5.
    发明申请
    Control Apparatus for Internal Combustion Engine 失效
    内燃机控制装置

    公开(公告)号:US20070255484A1

    公开(公告)日:2007-11-01

    申请号:US11628494

    申请日:2005-09-13

    IPC分类号: F02D28/00

    摘要: This control apparatus obtains a relation (trade-off line) between NOx generation amount and PM generation amount with EGR ratio serving as a parameter from an NOx generation amount estimation model which calculates the NOx generation amount on the basis of the oxygen mole concentration of intake gas and a PM generation amount estimation model which calculates the PM generation amount on the basis of an excess air factor. Further, the control apparatus obtains a straight line (ratio determination line) which passes through a point (appropriate point A) corresponding to a combination of steady-condition appropriate values of the NOx generation amount and the PM generation amount under the present operating conditions and which has a slope K determined in consideration of a regulation value based on a law relating to emission control. The control apparatus uses an intersection (target point B) between the trade-off line and the ratio determination line as an emission target value, and sets an EGR ratio target value Regrt to an EGR ratio corresponding to the target point B.

    摘要翻译: 该控制装置从NOx生成量估计模型获得NOx生成量与PM生成量之间的关系(权衡关系),其中,EGR比用作为参数的EGR率,该NOx生成量估计模型基于进气的氧摩尔浓度计算NOx生成量 气体和PM生成量估计模型,其根据过量空气系数计算PM生成量。 此外,控制装置获得通过与当前运行条件下的NOx生成量的稳定值适当值和PM生成量的组合对应的点(适当点A)的直线(比例判定线),以及 其具有考虑到基于与排放控制有关的规则的调节值而确定的坡度K. 控制装置使用权衡线和比例判定线之间的交点(目标点B)作为排放目标值,并将EGR率目标值Regrt设定为与目标点B对应的EGR率。

    Soot Generation Amount Estimation Apparatus For Internal Combustion Engine
    6.
    发明申请
    Soot Generation Amount Estimation Apparatus For Internal Combustion Engine 有权
    用于内燃机的烟尘发生量估计装置

    公开(公告)号:US20100058832A1

    公开(公告)日:2010-03-11

    申请号:US11792665

    申请日:2006-07-13

    IPC分类号: G01N7/00

    摘要: A soot generation amount estimation apparatus obtains a generation speed of a precursor of soot (accordingly, the concentration of the precursor) in consideration of formation of the precursor from fuel, thermal decomposition of the formed precursor, and formation of soot from the formed precursor, and estimates a generation speed of soot (accordingly, the concentration of soot (the generation amount of soot)) in consideration of formation of soot from the precursor, which depends on the concentration of the precursor, and oxidation of the formed soot. The apparatus employs a reaction model in which the reaction process in which soot is generated from fuel is divided into two steps; i.e., a reaction process in which a precursor is generated from fuel and a reaction process in which soot is generated from the precursor. Thus, phenomena, such as a “delay in soot generation” in the reaction process in which soot is generated from fuel, can be accurately simulated.

    摘要翻译: 烟炱发生量估计装置考虑到来自燃料的前体的形成,所形成的前体的热分解和来自所形成的前体的烟灰的形成,获得烟炱前体的生成速度(相应地,前体的浓度) 考虑到来自前体的烟灰的形成(其取决于前体的浓度)和形成的烟灰的氧化,估计烟灰的产生速度(因此,烟灰的浓度(烟灰的产生量))。 该装置采用反应模型,其中从燃料产生烟灰的反应过程分为两个步骤; 即其中从燃料产生前体的反应过程和从前体产生烟灰的反应过程。 因此,可以精确地模拟在燃料中产生烟灰的反应过程中的“烟灰产生的延迟”等现象。

    Control apparatus for internal combustion engine
    7.
    发明授权
    Control apparatus for internal combustion engine 失效
    内燃机控制装置

    公开(公告)号:US07383118B2

    公开(公告)日:2008-06-03

    申请号:US11628494

    申请日:2005-09-13

    摘要: This control apparatus obtains a relation (trade-off line) between NOx generation amount and PM generation amount with EGR ratio serving as a parameter from an NOx generation amount estimation model which calculates the NOx generation amount on the basis of the oxygen mole concentration of intake gas and a PM generation amount estimation model which calculates the PM generation amount on the basis of an excess air factor. Further, the control apparatus obtains a straight line (ratio determination line) which passes through a point (appropriate point A) corresponding to a combination of steady-condition appropriate values of the NOx generation amount and the PM generation amount under the present operating conditions and which has a slope K determined in consideration of a regulation value based on a law relating to emission control. The control apparatus uses an intersection (target point B) between the trade-off line and the ratio determination line as an emission target value, and sets an EGR ratio target value Regrt to an EGR ratio corresponding to the target point B.

    摘要翻译: 该控制装置从NOx生成量估计模型获得NOx生成量与PM生成量之间的关系(权衡关系),其中,EGR比用作为参数的EGR率,该NOx生成量估计模型基于进气的氧摩尔浓度计算NOx生成量 气体和PM生成量估计模型,其根据过量空气系数计算PM生成量。 此外,控制装置获得通过与当前运行条件下的NOx生成量的稳定值适当值和PM生成量的组合对应的点(适当点A)的直线(比例判定线),以及 其具有考虑到基于与排放控制有关的规则的调节值而确定的坡度K. 控制装置使用权衡线和比例判定线之间的交点(目标点B)作为排放目标值,并将EGR率目标值Regrt设定为与目标点B对应的EGR率。

    EGR control device and method for internal combustion engine
    8.
    发明授权
    EGR control device and method for internal combustion engine 有权
    EGR控制装置和内燃机的方法

    公开(公告)号:US07055508B2

    公开(公告)日:2006-06-06

    申请号:US10523640

    申请日:2003-08-11

    IPC分类号: F02M25/07 G06F19/00 F02M51/00

    摘要: An EGR control device is provided with an EGR control valve (52) and an electronic control unit (60). An exhaust gas recirculation pipe (51) extends across the EGR control valve (52). The electronic control unit calculates a target EGR ratio, a target air flow rate, an actual EGR ratio, and an actual air flow rate, on the basis of operational state quantities of an engine. The electronic control unit then calculates, as a target converted EGR ratio, a ratio of the target EGR ratio to the target air flow rate, calculates, as an actual converted EGR ratio, a ratio of the actual EGR ratio to the actual air flow rate, and controls an opening of the EGR control valve such that the target converted EGR ratio becomes equal to the actual converted EGR ratio. An actual converted EGR ratio is proportional to an intake-air oxygen concentration, and an actual converted EGR ratio and a target converted EGR ratio are calculated independently of a command injection amount. Therefore, a desired intake-air oxygen concentration is obtained irrespective of flow rate characteristics of injection valves.

    摘要翻译: EGR控制装置具有EGR控制阀(52)和电子控制单元(60)。 废气再循环管(51)跨过EGR控制阀(52)延伸。 电子控制单元基于发动机的运转状态量来计算目标EGR率,目标空气流量,实际EGR率和实际空气流量。 然后,电子控制单元将目标EGR率与目标空气流量的比率作为目标转换后的EGR率,算出实际的EGR率与实际的空气流量的实际比例 并且控制EGR控制阀的开度,使得目标转换EGR比变得等于实际转换的EGR率。 实际转换的EGR率与进气 - 氧气浓度成正比,独立于指令喷射量计算实际转换后的EGR率和目标转换后的EGR率。 因此,不管喷射阀的流量特性如何,都能获得所需的进气 - 空气氧浓度。

    Egr control device and method for internal combustion engine
    9.
    发明申请
    Egr control device and method for internal combustion engine 有权
    Egr内燃机控制装置及方法

    公开(公告)号:US20060048760A1

    公开(公告)日:2006-03-09

    申请号:US10523640

    申请日:2003-08-11

    IPC分类号: F02M25/07

    摘要: An EGR control device is provided with an EGR control valve (52) and an electronic control unit (60). An exhaust gas recirculation pipe (51) extends across the EGR control valve (52). The electronic control unit calculates a target EGR ratio, a target air flow rate, an actual EGR ratio, and an actual air flow rate, on the basis of operational state quantities of an engine. The electronic control unit then calculates, as a target converted EGR ratio, a ratio of the target EGR ratio to the target air flow rate, calculates, as an actual converted EGR ratio, a ratio of the actual EGR ratio to the actual air flow rate, and controls an opening of the EGR control valve such that the target converted EGR ratio becomes equal to the actual converted EGR ratio. An actual converted EGR ratio is proportional to an intake-air oxygen concentration, and an actual converted EGR ratio and a target converted EGR ratio are calculated independently of a command injection amount. Therefore, a desired intake-air oxygen concentration is obtained irrespective of flow rate characteristics of injection valves.

    摘要翻译: EGR控制装置具有EGR控制阀(52)和电子控制单元(60)。 废气再循环管(51)跨过EGR控制阀(52)延伸。 电子控制单元基于发动机的运转状态量来计算目标EGR率,目标空气流量,实际EGR率和实际空气流量。 然后,电子控制单元将目标EGR率与目标空气流量的比率作为目标转换后的EGR率,算出实际的EGR率与实际的空气流量的实际比例 并且控制EGR控制阀的开度,使得目标转换EGR比变得等于实际转换的EGR率。 实际转换的EGR率与进气 - 氧气浓度成正比,独立于指令喷射量计算实际转换后的EGR率和目标转换后的EGR率。 因此,不管喷射阀的流量特性如何,都能获得所需的进气 - 空气氧浓度。

    Fuel injection control device for an internal combustion engine
    10.
    发明授权
    Fuel injection control device for an internal combustion engine 失效
    一种用于内燃机的燃油喷射控制装置

    公开(公告)号:US06065449A

    公开(公告)日:2000-05-23

    申请号:US210768

    申请日:1998-12-14

    申请人: Takao Fukuma

    发明人: Takao Fukuma

    摘要: The fuel injection control device includes an electronic control unit (ECU) for controlling a fuel injection amount of the diesel engine of an automobile. The ECU determines a basic fuel injection amount in accordance with the engine operating condition such as the amount of depression of the accelerator pedal, the intake air amount and the engine speed. Further, the ECU estimates the magnitude of the torsional vibration of the output shaft system of the engine when the basic fuel injection amount of fuel is supplied to the engine using a model of the output shaft system. The ECU performs a feedforward control based on the estimated magnitude of the torsional vibration and corrects the basic fuel injection amount so that the torsional vibration becomes small. Therefore, the fuel injection amount is corrected to attenuate the torsional vibration before the torsional vibration actually occurs.

    摘要翻译: 燃料喷射控制装置包括用于控制汽车的柴油发动机的燃料喷射量的电子控制单元(ECU)。 ECU根据诸如加速踏板的下压量,进气量和发动机转速等发动机运转状况来决定基本的燃料喷射量。 此外,当使用输出轴系统的型号将燃料的基本燃料喷射量提供给发动机时,ECU估计发动机的输出轴系统的扭转振动的大小。 ECU基于估计的扭转振动的大小执行前馈控制,并且校正基本燃料喷射量,使得扭转振动变小。 因此,在实际发生扭转振动之前,对燃料喷射量进行修正,以衰减扭转振动。