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    • 4. 发明授权
    • Fuel injection control system for diesel engine
    • 柴油机燃油喷射控制系统
    • US06412469B1
    • 2002-07-02
    • US09620973
    • 2000-07-20
    • Hiroyuki ItoyamaKensuke OsamuraTakashi ShirakawaManabu Miura
    • Hiroyuki ItoyamaKensuke OsamuraTakashi ShirakawaManabu Miura
    • F02D4104
    • F02D41/008F02D41/1497F02D41/403F02D2041/288Y02T10/44
    • A fuel injection control system is arranged to decide the execution of a pilot fuel injection based on evaluation functions indicative of degree of a pilot fuel injection demand, to decide an engine operating condition, to calculate a fuel injection quantity for each cylinder when the engine operating condition is in the predetermined low-load operating region, to calculate a pilot fuel injection quantity for each cylinder by multiplying a predetermined ratio to the fuel injection quantity in the predetermined low-load operating region and when the pilot fuel injection is executed, and to calculate a main fuel injection quantity by subtracting the pilot fuel injection quantity from the fuel injection quantity. Therefore, this arrangement enables accurate decision as to the execution of the pilot fuel injection and proper control of pilot and main fuel injection quantities.
    • 燃料喷射控制系统被布置成基于指示引燃燃料喷射需求程度的评估功能来决定执行先导燃料喷射的执行,以决定发动机工作状态,以在发动机运行时计算每个气缸的燃料喷射量 条件在预定的低负荷运行区域中,通过将预定比率与预定的低负荷运行区域中的燃料喷射量相乘并且执行先导燃料喷射时,计算每个气缸的先导燃料喷射量,并且 通过从燃料喷射量减去先导燃料喷射量来计算主燃料喷射量。 因此,这种布置使得能够准确地确定先导燃料喷射的执行和飞行员和主燃料喷射量的适当控制。
    • 5. 发明授权
    • Method of reduction of cold-start emissions from internal combustion engines
    • US06390065B1
    • 2002-05-21
    • US09781134
    • 2001-02-10
    • Göran Almkvist
    • Göran Almkvist
    • F02D4104
    • Method of reducing noxious or toxic exhaust emissions from an internal combustion engine (10) having a plurality of cylinders (12) cooperating with a crankshaft (13) to cause the crankshaft to rotate at a rotational speed when the cylinders (12) are provided with an air/fuel mixture having a lambda value and the mixture is ignited to generate pressure in the cylinders. The method includes measuring a parameter reflecting the pressure in a first cylinder during at least a part of a working stroke of the first cylinder when supplied with an air/fuel mixture having a first lambda value to thereby obtain a first parametric value. An air/fuel mixture is provided to a second cylinder, which air/fuel mixture has a second lambda value which is different to the first lambda value, to cause the second cylinder to perform a working stroke. A parameter is measured reflecting the pressure in the second cylinder during at least a part of the working stroke of the second cylinder to obtain a second parametric value. The parametric values are compared to obtain a parametric comparison value and the lambda value is adjusted for the air/fuel mixture to a subsequent cylinder dependent on the parametric comparison value.
    • 6. 发明授权
    • Control system for internal combustion engine
    • 内燃机控制系统
    • US06807942B2
    • 2004-10-26
    • US10315084
    • 2002-12-10
    • Shinichi KitajimaHironao FukuchiAtsushi Matsubara
    • Shinichi KitajimaHironao FukuchiAtsushi Matsubara
    • F02D4104
    • F02D41/0077F02D37/02F02M26/48Y02T10/47
    • A control system for an internal combustion engine is disclosed. The engine has an exhaust gas recirculation passage for recirculating a portion of exhaust gases from the engine to an intake system and an exhaust gas recirculation control valve for controlling an amount of exhaust gases recirculated through the exhaust gas recirculation passage. A valve opening amount of the exhaust gas recirculation control valve is detected. A fuel amount to be supplied to the engine is calculated according to the valve opening amount of the exhaust gas recirculation control valve. An average valve opening value, a change rate of which is smaller than that of the detected valve opening amount is used to calculate a correction value for correcting the fuel supply amount. The fuel supply amount is corrected according to the calculated correction value from a time at which an opening of the exhaust gas recirculation control valve is detected.
    • 公开了一种用于内燃机的控制系统。 发动机具有废气再循环通道,用于将来自发动机的一部分废气再循环到进气系统和排气再循环控制阀,用于控制通过废气再循环通道再循环的废气量。 检测废气再循环控制阀的开阀量。 根据废气再循环控制阀的阀开度计算供给到发动机的燃料量。 使用其变化率小于检测到的阀开度的平均阀打开值来计算用于校正燃料供给量的校正值。 根据从检测到废气再循环控制阀的开度的时刻算出的校正值来校正燃料供给量。
    • 7. 发明授权
    • Method for operating an internal combustion engine
    • 操作内燃机的方法
    • US06785600B2
    • 2004-08-31
    • US10009423
    • 2002-04-18
    • Manfred BirkAndreas MichalskeDirk Samuelsen
    • Manfred BirkAndreas MichalskeDirk Samuelsen
    • F02D4104
    • F02D41/1497F02D41/0275F02D41/402F02D2250/21Y02T10/44
    • An internal combustion engine, in particular for a motor vehicle, is described. The internal combustion engine is provided with a control unit for determining a setpoint fuel mass and/or a setpoint air mass as a function of a setpoint torque. The control unit is also provided for transitioning from a first operating mode to a second operating mode of the internal combustion engine. An actual torque is determined by the control unit during the transition to the second operating mode of the internal combustion engine. A torque difference between the setpoint torque and the actual torque is also calculated by the control unit. Finally, the setpoint fuel mass and/or the setpoint air mass is controlled by the control unit as a function of the torque difference.
    • 描述了一种特别用于机动车辆的内燃机。 内燃机设置有用于根据设定转矩确定设定点燃料质量和/或设定点空气质量的控制单元。 控制单元还被设置用于从内燃机的第一操作模式转换到第二操作模式。 在转向内燃机的第二操作模式期间,控制单元确定实际转矩。 设定转矩和实际转矩之间的转矩差也由控制单元计算。 最后,作为转矩差的函数,控制单元控制设定点燃料质量和/或设定点空气质量。