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    • 31. 发明授权
    • Fuel injection control system and method
    • 燃油喷射控制系统及方法
    • US06705290B2
    • 2004-03-16
    • US10184890
    • 2002-07-01
    • Daniel Reese Puckett
    • Daniel Reese Puckett
    • F02M700
    • F02M59/105F02D41/32F02D41/3827F02D41/3836F02D2041/389F02M57/025
    • A system and method of controlling a fuel injector is provided. A first injection signal is applied to a hydraulically actuated fuel injector to inject a quantity of fuel into a combustion chamber of an internal combustion engine. An amount of an operating fluid used by the fuel injector to inject the quantity of fuel into the combustion chamber is calculated. The amount of fuel injected into the combustion chamber is estimated based on the amount of operating fluid used by the fuel injector. A viscosity parameter is determined for the fuel injector based on the duration of the first injection signal and the estimated amount of fuel injected into the combustion chamber.
    • 提供了一种控制燃料喷射器的系统和方法。 第一注射信号被施加到液压致动的燃料喷射器以将一定量的燃料喷射到内燃机的燃烧室中。 计算由燃料喷射器将燃料量喷射到燃烧室中的一定量的工作流体。 基于燃料喷射器使用的工作流体的量来估计喷射到燃烧室中的燃料量。 基于第一喷射信号的持续时间和喷射到燃烧室中的燃料的估计量,确定燃料喷射器的粘度参数。
    • 36. 发明申请
    • Fuel injection control apparatus
    • 燃油喷射控制装置
    • US20020029764A1
    • 2002-03-14
    • US09951416
    • 2001-09-14
    • Kenichi MachidaTatsuo HayashiMasahiko Abe
    • G05D001/00
    • F02D41/34F02D41/182F02D41/32F02D2200/0402F02D2200/0404F02D2200/0406F02D2200/501F02D2200/702F02D2200/703F02D2200/704Y02T10/44
    • To enable accurate detection of the alternative ambient pressure when the correction of fuel supply is carried out by the used of the value of the ambient pressure substituted by the negative pressure in the inlet pipe. The difference between the calculated alternative ambient pressure and the estimated ambient pressure (offset) is set as a plurality of functions of the number of engine revolutions and the throttle opening, and stored in the area determination section with a plurality of areas divided by each offset value. In which area the condition of the engine resides is determined from the number of engine revolution and the throttle opening and the offset corresponding to the area is supplied. The calculation section calculates the calculation base value by the use of the negative pressure PB and the offset. When the relationship between the calculated base value and the last determined alternative ambient pressure is constant, the alternative ambient pressure is renewed by the calculation base value. Since the offset value is determined for each area determined according to the condition of the engine to calculate the ambient pressure, the accurate fuel correction can be carried out according to the condition of the engine.
    • 当通过使用由入口管中的负压取代的环境压力的值来进行燃料供给的校正时,能够准确地检测替代的环境压力。 计算的替代环境压力和估计的环境压力(偏移)之间的差被设定为发动机转数和节气门开度的多个功能,并且存储在区域确定部分中,其中多个区域被每个偏移 值。 在哪个区域中,发动机的状况由发动机转数确定,并且提供节气门开度和与该区域相对应的偏移。 计算部通过使用负压PB和偏移来计算计算基准值。 当计算的基础值和最后确定的替代环境压力之间的关系是恒定的时,替代的环境压力通过计算基础值更新。 由于根据发动机的条件确定的每个区域确定偏移值以计算环境压力,所以可以根据发动机的状况来执行精确的燃料校正。
    • 37. 发明申请
    • Fuel injection control apparatus
    • 燃油喷射控制装置
    • US20020007822A1
    • 2002-01-24
    • US09893552
    • 2001-06-29
    • Kenichi MachidaYoshiaki HirakataTomomi YuharaMasahiko AbeShiro Kokubu
    • F02M051/00
    • F02D41/045F02D41/2422F02D41/32F02D2200/0404
    • To change a fuel injection quantity to follow a throttle opening change in a low load region. A first calculator calculates a basic injection time using a throttle opening and an engine rotational speed. A second calculator calculates a basic injection time using an intake pipe negative pressure and the engine rotational speed. A selector selects the first calculator when the load is higher, and selects the second calculator when the load is lower. If the rate of change of the throttle opening is greater than a reference value, then a switcher sets the selector to select the first calculator. Thus, if the rate of increase of the throttle opening is greater than the reference value even when the load is low, the first calculator is selected.
    • 改变燃料喷射量以跟随低负载区域中的节气门开度变化。 第一计算器使用节气门开度和发动机转速来计算基本喷射时间。 第二计算器使用进气管负压和发动机转速来计算基本喷射时间。 当负载较高时,选择器选择第一个计算器,当负载较低时选择第二个计算器。 如果节气门开度的变化率大于参考值,则切换器设置选择器以选择第一计算器。 因此,即使在负荷低的情况下,如果节气门开度的增加率大于参考值,则选择第一计算器。