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    • 24. 发明申请
    • EGR valve control apparatus
    • EGR阀控制装置
    • US20020112709A1
    • 2002-08-22
    • US09921690
    • 2001-08-06
    • MITSUBISHI DENKI KABUSHIKI KAISHA
    • Makoto ItoiTsuneo Tanabe
    • F02M025/07
    • F02D41/0077F02M26/54Y02T10/47
    • An EGR valve control apparatus is provided which is capable of controlling an amount of exhaust gas to be recirculated in a precise and proper manner by using a step motor, as well as improving the durability of an EGR valve. The EGR valve control apparatus adjusts an opening of the EGR valve for opening and closing an exhaust gas recirculation passage connecting between an exhaust passage and an intake passage by means of the step motor. The apparatus includes a hysteresis-provided drive control section for driving the step motor in accordance with the target position and performing control with hysteresis of two steps or more so as to hold the position of the step motor when a difference between the target position and the current position of the step motor is equal to or less than a prescribed n steps which is equal to or greater than two steps, and a forced drive control section for driving the step motor to the target position thereof while stopping the hysteresis-provided control when a deviation between the target position and the current position of the step motor remains for a predetermined period of time.
    • 提供了一种EGR阀控制装置,其能够通过使用步进电动机以精确和适当的方式控制要再循环的排气量,并且提高EGR阀的耐久性。 EGR阀控制装置通过步进电机调节用于打开和关闭连接在排气通道和进气通道之间的废气再循环通道的EGR阀的开口。 该装置包括一个滞后提供的驱动控制部分,用于根据目标位置驱动步进电机,并执行两步或更多步的滞后控制,以便在目标位置与目标位置之间的差值时保持步进电机的位置 步进电动机的当前位置等于或小于等于或大于两步的规定的n个步骤;以及强制驱动控制部分,用于在停止滞后提供的控制时将步进电动机驱动到其目标位置, 目标位置与步进电机的当前位置之间的偏差保持预定时间。
    • 25. 发明申请
    • SYSTEM FOR MANAGING CHARGE FLOW AND EGR FRACTION IN AN INTERNAL COMBUSTION ENGINE
    • 用于管理内燃机中的充气流量和EGR分级的系统
    • US20020103593A1
    • 2002-08-01
    • US09773151
    • 2001-01-31
    • Larry J. BrackneyThomas A. DollmeyerGeorge Brunemann
    • F02M025/07F02B047/08
    • F02D41/0052F02B29/0406F02D41/0065F02D41/0072F02M26/05F02M26/10F02M26/23F02M26/47Y02T10/47
    • A charge limit manager arbitrates between desired EGR system and/or turbocharger behavior and the actual capabilities of EGR system and/or turbocharger control mechanisms under current operating conditions. In one embodiment, the charge limit manager includes three limiter blocks producing offset signals as separate functions of turbocharger compressor outlet temperature, turbocharger speed and pressure differential (nullP) across an EGR valve. A charge limit selector block is responsive to the offset values produced thereby, and also to commanded values of charge flow and EGR fraction as well as operating values of EGR valve position and nullP, to limit the charge flow and EGR fraction commands to controllable values. These values are preferably subtracted from actual or estimated values of charge flow and EGR fraction to produce charge flow and EGR fraction error values for use in controlling one or more EGR system and/or turbocharger swallowing capacity/efficiency control mechanisms.
    • 充电限制管理者在当前操作条件下仲裁期望的EGR系统和/或涡轮增压器行为以及EGR系统和/或涡轮增压器控制机构的实际能力。 在一个实施例中,充电限制管理器包括三个限制器块,其产生偏移信号,作为涡轮增压器压缩机出口温度,涡轮增压器速度和跨越EGR阀的压差(DELTAP)的单独功能。 充电限制选择器块响应于由此产生的偏移值,并且还响应于充电流量和EGR分数的指令值以及EGR阀位置和DELTAP的操作值,以将充电流量和EGR分数指令限制为可控制值。 这些值优选地从充电流量和EGR分数的实际或估计值中减去,以产生用于控制一个或多个EGR系统和/或涡轮增压器吞咽能力/效率控制机制的电荷流量和EGR分数误差值。
    • 27. 发明申请
    • VENTURI BYPASS EXHAUST GAS RECIRCULATION SYSTEM
    • VENTURI旁路排气回收系统
    • US20020069862A1
    • 2002-06-13
    • US09732470
    • 2000-12-07
    • James J. Faletti
    • F02M025/07
    • F02M26/43F02M26/05F02M26/10F02M26/19F02M26/25F02M26/38F02M26/44
    • An internal combustion engine is provided with a combustion air supply, an intake manifold, an exhaust manifold, and an exhaust gas recirculation system having a venturi assembly. The venturi assembly includes an outlet, a combustion air inlet connected and in communication with the combustion air supply, and an exhaust gas inlet connected and in communication with the exhaust manifold. A bypass fluid line and a bypass valve in the nature of a check valve are provided to bypass the venturi assembly. The check valve is responsive to changes in pressure drop across the venturi assembly, to open and close the bypass fluid line and limit the pressure drop across the venturi assembly.
    • 内燃机设置有燃烧空气源,进气歧管,排气歧管以及具有文氏管组件的排气再循环系统。 文氏管组件包括出口,连接燃烧空气入口和与燃烧空气源连通的燃烧空气入口,以及连接并与排气歧管连通的排气入口。 提供止回阀性质的旁路流体管线和旁通阀以绕过文丘里管组件。 止回阀响应于文丘里管组件上的压降的变化,以打开和关闭旁路流体管线并限制文丘里管组件上的压降。
    • 29. 发明申请
    • Electronic control device for internal combustion engine and method of controlling the internal combustion engine
    • 内燃机用电子控制装置及内燃机控制方法
    • US20020046742A1
    • 2002-04-25
    • US09853877
    • 2001-05-14
    • MITSUBISHI DENKI KABUSHIKI KAISHA
    • Hideki Hagari
    • F02M025/07
    • F02P5/1516F02D37/02F02D41/0047F02D41/0072F02D41/1446F02D2200/0406F02D2200/0414F02D2200/703Y02T10/46
    • The invention provides an electronic control device for an internal combustion engine and a control method thereof in which more stable control is attained on the internal combustion engine in association with change in EGR amount due to change in atmospheric pressure. The electronic control device comprises a detector 21 for detect an operating condition of the internal combustion engine 1 from engine speed and intake pressure, a controller 24 for controlling the EGR amount on the basis of a result detected by the operating condition detector 21, a first fundamental control value calculator 26 for calculating a fundamental control value of the internal combustion engine 1 on the basis of the result detected by the operating condition detector 21 in a suspended state of the EGR, a second fundamental control value calculator 29 for calculating the fundamental control value of the internal combustion engine 1 on the basis of the result detected by the operating condition detector 21 in an operated state of the EGR, in which a change in EGR amount at the time of change in atmospheric pressure is calculated in the form of a rate of change to the EGR amount under the standard atmospheric pressure on the basis of the result detected by the operating condition detector and atmospheric pressure in the operated state of the EGR, and a fundamental control value calculated by the second fundamental control value calculator is corrected on the rate of change in the EGR amount.
    • 本发明提供了一种用于内燃机的电子控制装置及其控制方法,其中,随着大气压力的变化,与内燃机的EGR量的变化相应地实现更稳定的控制。 电子控制装置包括:检测器21,用于根据发动机转速和进气压力检测内燃机1的工作状态;控制器24,用于根据由操作条件检测器21检测到的结果控制EGR量;第一 基本控制值计算器26,用于根据由EGR操作状态检测器21检测到的结果计算内燃机1的基本控制值;第二基本控制值计算器29,用于计算基本控制 基于在操作状态检测器21检测到的结果,在EGR的操作状态下,内燃机1的值是以大气压变化时的EGR量的变化计算的 基于由操作条件检测到的结果,在标准大气压下的EGR量的变化率 在EGR的操作状态下的离子检测器和大气压力,并且由EGR量的变化率校正由第二基本控制值计算器计算出的基本控制值。
    • 30. 发明申请
    • Regulator valve with spacing chamber
    • 带间隔调节阀
    • US20020017626A1
    • 2002-02-14
    • US09888576
    • 2001-06-26
    • Frederic Gagnon
    • F02M025/07
    • F16K1/225F02M26/48F02M26/54F02M26/70F16K1/221F16K11/052F16K31/042H01M8/04089Y10T137/8242
    • An apparatus and method for reducing heat transfer between a motive force device and a valve. The apparatus consists of a regulator valve. The valve comprises a wall defining a flow passage disposed along a longitudinal axis. A closure member is disposed in the flow passage for rotation about an axis oblique to the longitudinal axis. The closure member is movable to a first position to prevent flow in the flow passage and the closure member is also movable to a second position to permit flow in the flow passage. A motive force device is disposed along the axis and coupled to the closure member by an insulator member. The motive force device is disposed such that it can rotate the closure member between the first position and the second position about the axis. The valve also comprises a spacing chamber having an inner wall and an outer wall. The inner wall forms a volume that houses the insulator member, the outer wall of the spacing chamber is coupled to the motive force device and the flow passage. The method comprises coupling a chamber having a defined volume to the motive force device and the regulator valve; and connecting the driveshaft of the motive force device to the actuating shaft of the valve with an insulator member.
    • 一种用于减少动力装置和阀之间的热传递的装置和方法。 该设备由调节阀组成。 阀包括限定沿着纵向轴线布置的流动通道的壁。 闭合构件设置在流动通道中,用于围绕纵向轴线倾斜的轴线旋转。 闭合构件可移动到第一位置以防止流动通道中的流动,并且闭合构件也可移动到第二位置以允许在流动通道中流动。 动力装置沿轴线设置并且通过绝缘体构件联接到闭合构件。 动力装置设置成使得其能够围绕轴线在第一位置和第二位置之间旋转关闭构件。 该阀还包括具有内壁和外壁的间隔室。 内壁形成容纳绝缘体构件的体积,间隔室的外壁与动力装置和流路连接。 该方法包括将具有限定体积的腔室与动力装置和调节阀联接; 并且用绝缘体构件将动力装置的驱动轴连接到阀的致动轴。