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    • 2. 发明授权
    • Fluid pump control apparatus and method
    • 流体泵控制装置及方法
    • US06293757B1
    • 2001-09-25
    • US09227578
    • 1999-01-08
    • Tomihisa OdaTakao FukumaYasuo Harada
    • Tomihisa OdaTakao FukumaYasuo Harada
    • F04B1902
    • F02D41/3845F02D2041/1409F02D2041/141F02M41/1405F02M63/0225
    • 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.
    • 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。
    • 5. 发明申请
    • Control Apparatus for Internal Combustion Engine
    • 内燃机控制装置
    • US20070255484A1
    • 2007-11-01
    • US11628494
    • 2005-09-13
    • Daichi ImaiShigeki NakayamaTakao Fukuma
    • Daichi ImaiShigeki NakayamaTakao Fukuma
    • F02D28/00
    • F02D41/0072F02B29/0406F02B2275/14F02D41/0007F02D41/1462F02D2041/0017F02M26/05F02M26/23F02M26/46F02M26/47Y02T10/123Y02T10/144Y02T10/47
    • 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.
    • 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。
    • 6. 发明授权
    • Fuel injection control device for an internal combustion engine
    • 一种用于内燃机的燃油喷射控制装置
    • US06065449A
    • 2000-05-23
    • US210768
    • 1998-12-14
    • Takao Fukuma
    • Takao Fukuma
    • F02B77/00F02B3/06F02D41/04F02D41/14F02D41/38F02D41/40F02D45/00G05B11/36
    • F02D41/1497F02D41/3827B60W2520/105F02B3/06F02D2200/1004F02D2250/28
    • 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.
    • 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。
    • 7. 发明授权
    • Control apparatus for an internal combustion engine
    • 一种用于内燃机的控制装置
    • US5921223A
    • 1999-07-13
    • US927648
    • 1997-09-11
    • Takao Fukuma
    • Takao Fukuma
    • F02M25/07F02B3/06F02D21/08F02D41/00F02D41/14
    • F02D41/0072F02D41/14F02B3/06Y02T10/47
    • A control apparatus for an internal combustion engine with an exhaust gas recirculation system is disclosed. The control apparatus grasps an optimum relational expression between an excess air ratio and an EGR rate in a transient engine operating condition changing to a certain engine operating condition. Each combination of the excess air ratio and the EGR rate on the relational expression optimizes an amount of generated paticulates and an amount of generated NO.sub.x. The relational expression contains a combination of an optimum excess air ratio and an optimum EGR rate in the certain engine operating condition. The apparatus determines one of a current excess air ratio and a current EGR rate and controls the exhaust gas recirculation system so as to realize the other of an excess air ratio and an EGR rate satisfying the relational expression with respect to one of the current excess air ratio and the current EGR rate.
    • 公开了一种具有废气再循环系统的内燃机的控制装置。 控制装置在瞬变发动机运转状态变化到某一发动机运转状态时,掌握过量空气比与EGR率之间的最佳关系式。 过量空气比和EGR率对关系表达的每个组合优化产生的蛋氨酸的量和产生的NOx的量。 关系表达式包含在某些发动机运行条件下的最佳过剩空气比和最佳EGR率的组合。 该装置确定当前的过量空气比和当前EGR率中的一个,并且控制废气再循环系统,以实现过剩空气比和满足关系表达式的另一个相对于当前过量空气中的一个 比率和当前EGR率。
    • 10. 发明授权
    • Control apparatus for internal combustion engine
    • 内燃机控制装置
    • US07383118B2
    • 2008-06-03
    • US11628494
    • 2005-09-13
    • Daichi ImaiShigeki NakayamaTakao Fukuma
    • Daichi ImaiShigeki NakayamaTakao Fukuma
    • F02M25/07F02M51/00F02B47/08G06F19/00
    • F02D41/0072F02B29/0406F02B2275/14F02D41/0007F02D41/1462F02D2041/0017F02M26/05F02M26/23F02M26/46F02M26/47Y02T10/123Y02T10/144Y02T10/47
    • 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.
    • 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。