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    • 1. 发明授权
    • Automotive fuel injection system
    • 汽车燃油喷射系统
    • US5044342A
    • 1991-09-03
    • US625386
    • 1990-12-11
    • Kouichi YamaneKoji NishimotoMasanobu Uchinami
    • Kouichi YamaneKoji NishimotoMasanobu Uchinami
    • F02D41/10F02B75/02F02D41/04F02D41/32F02D45/00
    • F02D41/045F02D41/32F02B2075/027
    • An automotive fuel injection system for detecting as quickly as possible the occurrence of acceleration without employing a throttle sensor to thereby perform an asynchronous fuel injection for the purpose of maintaining the air-to-fuel ratio of the combustible air-fuel mixture at an optimum value during the acceleration of the automotive engine. The automotive fuel injection system comprises a device for comparing the pressure inside the fuel intake system with an average value of the pressures inside the fuel intake system. When the pressure prevailing in the fuel intake system deviates by a predetermined quantity from the average pressure inside the fuel intake system, acceleration is deemed as actually occurring in the automotive engine and, hence, asynchronous fuel injection is effected substantially simultaneously with the detection of the occurrence of engine acceleration.
    • 一种汽车燃料喷射系统,用于尽可能快地检测加速度的发生而不使用节流传感器,从而执行异步燃料喷射,以将可燃空气 - 燃料混合物的空燃比保持在最佳值 在汽车发动机的加速期间。 汽车燃料喷射系统包括用于将燃料进气系统内的压力与燃料进气系统内的压力的平均值进行比较的装置。 当燃料进气系统中的压力与燃料进气系统内的平均压力偏离预定量时,加速度被认为实际上在汽车发动机中发生,因此异步燃料喷射基本上与检测到的 发生发动机加速。
    • 2. 发明授权
    • Fuel injection apparatus for an internal combustion engine
    • 燃油喷射装置内燃机
    • US5123392A
    • 1992-06-23
    • US650321
    • 1991-02-04
    • Masanobu UchinamiKouichi YamaneKoji Nishimoto
    • Masanobu UchinamiKouichi YamaneKoji Nishimoto
    • F02B75/02F02D41/04F02D41/10F02D41/32F02D41/34
    • F02D41/105F02D41/045F02D41/32F02B2075/027
    • In one aspect of the present invention, fuel is injected through the injector into the internal combustion engine in non-synchronism with a predetermined crank angle or a predetermined ignition timing each time when the intake air pipe pressure traverses a predetermined set value from the smaller value side to the larger value side. In another aspect of the present invention, the fuel injection is effected in non-synchronism with the predetermined crank angle or the predetermined ignition timing when the intake air pipe pressure traverses a second predetermined value which is selected among a plurality of predetermined set values (the second predetermined value being larger in the absolute value than a first set value, and being close to the first set value) in a case that a time of traversing the first and second set values of the intake air pipe pressure is shorter than a predetermined time.
    • 在本发明的一个方面中,每当进气管压力从较小的值穿过预定的设定值时,燃料通过喷射器以不同步的方式与预定的曲柄角或预定的点火正时注入到内燃机中 一边到更大的价值一面。 在本发明的另一方面,当进气管压力穿过从多个预定设定值中选择的第二预定值时,燃料喷射与预定曲轴角度或预定点火正时不同步地实现 在第一预定值比绝对值大于第一设定值,并且接近第一设定值时),在进气管压力的第一设定值和第二设定值的时间比预定时间短的情况下 。
    • 4. 发明授权
    • Air intake quantity controller for engine
    • 发动机进气量控制器
    • US5040506A
    • 1991-08-20
    • US533553
    • 1990-06-05
    • Kouichi Yamane
    • Kouichi Yamane
    • F02D41/04F02B75/02F02D9/02F02D31/00F02D41/00
    • F02D41/0005F02D31/005F02D41/0002F02B2075/027F02D2011/102Y02T10/42
    • An air intake quantity controller for an engine having a control unit for effecting control such that the quantity of auxiliary air is increased to cope with a decelerating condition that occurs when a throttle valve is changed from an open state to a closed state. The control unit inhibits the control operation of increasing the quantity of auxiliary air if either an engine parameter which is proportional to the load on the engine or the engine load is not greater than a predetermined quantity when the throttle valve is in an open state. Thus, when the change in the engine load is relatively small at the time when the throttle valve shifts from an open state to a closed state, the control unit inhibits the control operation of increasing the quantity of auxiliary air, thereby preventing an unnecessary rise in the engine speed.
    • 一种用于发动机的进气量控制器,其具有用于进行控制的控制单元,使得辅助空气的量增加以应对当节气门从打开状态改变为关闭状态时发生的减速状态。 如果在节流阀处于打开状态时与发动机的负载或发动机负载成比例的发动机参数不大于预定量,则控制单元禁止增加辅助空气量的控制操作。 因此,当节气门从打开状态转换到关闭状态时,当发动机负荷的变化相对较小时,控制单元禁止增加辅助空气量的控制操作,从而防止不必要的上升 发动机转速。
    • 6. 发明授权
    • Fuel injection device for an internal combustion engine
    • 内燃机燃油喷射装置
    • US4984552A
    • 1991-01-15
    • US375800
    • 1989-07-05
    • Hiroyuki NishizawaKimito KashiwabaraOsamu NakoMitsuaki IshiiKouichi YamaneMasaaki MiyazakiRyoji Nishiyama
    • Hiroyuki NishizawaKimito KashiwabaraOsamu NakoMitsuaki IshiiKouichi YamaneMasaaki MiyazakiRyoji Nishiyama
    • F02D41/04F02D41/10F02D45/00
    • F02D41/045F02D41/105
    • A fuel injection device for an automotive internal combustion engine is disclosed, which comprises two distinct acceleration state determining means, i.e., a rapid and a slow acceleration state judgement means, for determining the amount of the asynchronous augmentation of fuel. The rapid acceleration state judgement detects the rapid acceleration state by comparing with a first threshold level the increment of the throttle opening degree over each period of an A/D conversion timing signal; the slow acceleration judgement means, on the other hand, detects the slow acceleration state by comparing with a second threshold level the increment of, for example, the throttle opening degree signal over, for example, two successive periods of the same A/D conversion time signal. When the rapid acceleration state is detected, an asynchronous augmentation of fuel for the rapid acceleration is effected. On the other hand, an asynchronous augmentation of fuel for the slow acceleration is effected only if: (1) the rapid acceleration state is not detected, and (2) the slow acceleration state is detected, over the two successive periods of the timing signal.
    • 公开了一种用于汽车内燃机的燃料喷射装置,其包括用于确定燃料的异步增加量的两个不同的加速状态确定装置,即快速和慢速加速状态判断装置。 快速加速状态判断通过与A / D转换定时信号的每个周期上的节气门开度的增加值与第一阈值水平进行比较来检测快速加速状态; 另一方面,慢加速度判定装置通过比较例如相同A / D转换的两个连续周期的节气门开度信号的增量与第二阈值电平进行比较来检测慢加速度状态 时间信号。 当检测到快速加速状态时,实现用于快速加速的燃料的异步增加。 另一方面,只有在以下情况下才能实现用于慢加速度的燃料的异步增加:(1)未检测到快速加速状态,以及(2)在定时信号的两个连续周期中检测到慢加速状态 。
    • 7. 发明授权
    • Fuel injection device for an internal combustion engine
    • 内燃机燃油喷射装置
    • US4962742A
    • 1990-10-16
    • US376780
    • 1989-07-07
    • Hiroyuki NishizawaKimito KashiwabaraOsamu NakoMitsuaki IshiiKouichi YamaneMasaaki MiyazakiRyoji Nishiyama
    • Hiroyuki NishizawaKimito KashiwabaraOsamu NakoMitsuaki IshiiKouichi YamaneMasaaki MiyazakiRyoji Nishiyama
    • F02D41/04F02D23/02F02D41/00F02D41/10F02D41/24F02D41/32F02D41/34
    • F02D41/28F02D41/0007F02D41/32Y02T10/144
    • A fuel injection device for an automotive spark ignition internal combustion engine provided with a supercharger is disclosed, wherein the amount of fuel injected in synchrony with the crank angle signal is determined on the basis of the intake air pressure. The increment of the air pressure data over each fuel injection period is compared with a first threshold level to determine the first augmentation. The pressure data is averaged over each fuel injection period, and the increment of the averaged pressure data over a predetermined interval of time is compared with a second threshold level to determine the second augmentation. The fundamental amount is calculated on the basis of either the instantaneous or the averaged pressure data, in dependency on the value of the first augmentation amount. The total amount of fuel that is to be injected in synchrony with every predetermined numberth pulse of the crank angle signal is calculated in each injection cycle as a sum of the fundemental amount and the first and the second augmentation when the engine is judged to be in the supercharged state; when, on the other hand, the engine is judged to not to be in the supercharged state, the total amount of fuel is calculated as the sum of the fundamental amount and the first augmentation alone. The supercharged state is detected when both the intake air pressure and the number of rpm of the engine are above respective predetermined levels.
    • 公开了一种具有增压器的汽车用火花点火式内燃机的燃料喷射装置,其特征在于,与所述曲轴转角信号同步喷射的燃料量基于进气压力来确定。 将每个燃料喷射期间的空气压力数据的增量与第一阈值水平进行比较,以确定第一次增加。 压力数据在每个燃料喷射期间平均,并且将预定时间间隔上的平均压力数据的增量与第二阈值水平进行比较,以确定第二次增加。 根据第一次增加量的值,基于瞬时压力数据或平均压力数据计算基本量。 在每个喷射循环中计算出与曲柄角度信号的每个预定第
      十个脉冲同步喷射的燃料的总量,作为当发动机被判定为在其中时的基础量与第一和第二增
      加的总和 增压状态; 另一方面,当发动机被判断为不处于增压状态时,燃料的总量被单独计算为基本量和第一增加量之和。 当进气压力和发动机的转数都高于相应的预定水平时,检测到增压状态。
    • 8. 发明授权
    • Fuel injection device for an internal combustion engine
    • 内燃机燃油喷射装置
    • US4951634A
    • 1990-08-28
    • US368631
    • 1989-06-20
    • Hiroyuki NishizawaKimito KashiwabaraOsamu NakoMitsuaki IshiiKouichi YamaneMasaaki MiyazakiRyoji Nishiyama
    • Hiroyuki NishizawaKimito KashiwabaraOsamu NakoMitsuaki IshiiKouichi YamaneMasaaki MiyazakiRyoji Nishiyama
    • F02D41/04F02D41/00F02D41/10F02D41/34
    • F02D41/10
    • A fuel injector for a spark ignition internal combustion engine is disclosed, wherein the amount of injected fuel is increased by an extra amount when the engine is in a transient accelerating state. The air pressure within the air inlet passage to the engine is detected by an air pressure sensor, and the load condition is judged by comparing the detected pressure with a reference level. Further, the variation or increment of the detected pressure over each fuel injection period is calculated and compared with a high or a low threshold level selected in accordance with the load condition of the engine. Preferably, the high threshold level is selected when the high load condition continues over a predetermined length of time, the low threshold level being otherwise selected. The amount of transient extra increase is determined in accordance with the result of the comparison of the pressure variation with the selectd threshold level. On the other hand, the fundamental amount of injected fuel is calculated on the basis of an instantaneous current air pressure when the above amount of transient extra increase is not zero; otherwise, on the basis of an average of the pressure over the fuel injection period. The sum of the fundamental amount and the transient increase is injected in synchrony with every predetermined number pulse of the crank angle signal.
    • 公开了一种用于火花点火内燃机的燃料喷射器,其中当发动机处于瞬态加速状态时,喷射燃料的量增加额外的量。 通过空气压力传感器检测到发动机的进气通道内的空气压力,并通过将检测到的压力与参考水平进行比较来判断负载状况。 此外,计算每个燃料喷射期间的检测压力的变化或增量,并将其与根据发动机的负载条件选择的高或低阈值水平进行比较。 优选地,当高负载条件在预定时间长度上继续时,选择高阈值电平,否则选择低阈值电平。 根据压力变化与选择阈值水平的比较的结果确定瞬时额外增加的量。 另一方面,当上述瞬时额外增加量不为零时,基于瞬时当前空气压力计算喷射燃料的基本量; 否则,基于燃料喷射期间的压力平均值。 基本量和瞬时增加的总和与曲柄角信号的每个预定数量的脉冲同步地注入。