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    • 1. 发明授权
    • Method for controlling fuel supply to an internal combustion engine at
deceleration
    • 减速时控制内燃机燃料供给的方法
    • US4459962A
    • 1984-07-17
    • US494359
    • 1983-05-13
    • Akihiro YamatoShigeo Umesaki
    • Akihiro YamatoShigeo Umesaki
    • F02B1/04F02D41/12F02D41/34F02D5/02
    • F02D41/123F02B1/04
    • A fuel supply control method for controlling the fuel supply to an internal combustion engine at deceleration, wherein the valve opening of a throttle valve of the engine is detected while the throttle valve is being closed and each time each pulse of a predetermined sampling signal is generated, a variation in the same valve opening occurring between adjacent pulses of the sampling signal is determined as a control parameter value, and the fuel supply to the engine is interrupted in dependence upon the control parameter value. The above interruption of fuel supply to the engine is carried out during either of the following intervals of time: (a) a period of time during which it is determined that the value of the control parameter obtained at the time of generation of a present pulse of the sampling signal is smaller than a predetermined negative value and at the same time it is smaller than the value of the control parameter obtained at the time of generation of the preceding pulse of the sampling signal, and (b) a period of time starting from a time it is determined for the first time that the value of the control parameter at the present pulse of the sampling signal has become larger than the value of the control parameter at the preceding pulse of the sampling signal while at the same time the former is smaller than the aforementioned predetermined negative value, until a first predetermined period of time elapses.
    • 一种燃料供给控制方法,用于控制在减速时对内燃机的燃料供给,其中在节流阀关闭期间检测发动机的节气门的开度,并且每次产生预定采样信号的每个脉冲 确定在采样信号的相邻脉冲之间产生的相同阀门开度的变化作为控制参数值,并且根据控制参数值中断对发动机的燃料供给。 上述发动机燃料供给中断在以下时间间隔中进行:(a)确定在生成当前脉冲时获得的控制参数的值的时间段 的采样信号小于预定的负值,并且同时小于在采样信号的先前脉冲的产生时获得的控制参数的值,并且(b)一段时间开始 从第一次确定采样信号的当前脉冲处的控制参数的值已经变得大于采样信号的先前脉冲处的控制参数的值,同时前者 小于上述预定负值,直到第一预定时间段过去。
    • 3. 发明授权
    • Fuel injection control method for a multi-cylinder internal combustion
engine, having a fail safe function for abnormality in
cylinder-discriminating means
    • 用于多缸内燃机的燃料喷射控制方法,具有气缸鉴别装置中的异常故障保护功能
    • US4476830A
    • 1984-10-16
    • US521246
    • 1983-08-08
    • Shumpei HasegawaShigeo Umesaki
    • Shumpei HasegawaShigeo Umesaki
    • F02D41/22F02D41/36F02D45/00F02P7/077F02P15/00F02D17/00
    • F02D41/36F02D41/222F02P15/008F02P7/077Y02T10/44
    • A fuel injection control method for injecting fuel into a plurality of cylinders of an internal combustion engine in predetermined sequence starting from a fuel injection into a particular one of the cylinders, in synchronism with generation of pulses from crank angle position-detecting means indicative of predetermined crank angle positions of the engine, wherein when one of the cylinders which corresponds to a first pulse from the crank angle position-detecting means generated immediately after generation of a pulse from cylinder-discriminating means indicative of the above particular cylinder is other from the particular cylinder, the sequence of fuel injections into the cylinders is changed so as to effect a first fuel injection into the above particular cylinder immediately after the generation of the above pulse from the cylinder-discriminating means and then effect fuel injections into the other cylinders in the above predetermined sequence. The method is adapted to perform a fail safe function in the event of occurrence of an abnormality in the cylinder-discriminating means. The number of times of the above changing of the fuel injection sequence is counted up to a predetermined value, the cylinder-discriminating means is regarded as abnormal. Then, injection of fuel into the cylinders is effected in the above predetermined sequence in synchronism with pulses from the crank angle position-detecting means alone, irrespective of generation of subsequent pulses from the cylinder-discriminating means.
    • 一种燃料喷射控制方法,用于从指示预定的曲柄角位置检测装置的脉冲的产生同步地将燃料以预定顺序从燃料喷射到特定的一个气缸中,将燃料喷射到内燃机的多个气缸中 发动机的曲柄角位置,其中当从表示上述特定气缸的气缸鉴别装置产生脉冲之后立即产生的来自曲轴角位置检测装置的第一脉冲的一个气缸中的一个是特定的 气缸中的燃料喷射顺序发生变化,从而在从气缸鉴别装置产生上述脉冲之后立即对第一个燃料喷射到上述特定的气缸中,然后在其中的燃料喷射 超过预定顺序。 该方法适于在气缸识别装置发生异常的情况下执行故障安全功能。 燃料喷射顺序的上述变化次数被计数到预定值,气缸鉴别装置被认为是异常的。 然后,不管来自气缸识别装置的后续脉冲的产生如何,以与上述预定顺序同时进行的燃料喷射到气缸中,与来自曲柄角位置检测装置的脉冲同步进行。
    • 5. 发明授权
    • Deceleration fuel cut device for internal combustion engines
    • 内燃机减速燃料切断装置
    • US4434769A
    • 1984-03-06
    • US379187
    • 1982-05-17
    • Yutaka OtobeAkihiro YamatoShigeo Umesaki
    • Yutaka OtobeAkihiro YamatoShigeo Umesaki
    • F02B1/04F02D41/12F02D41/34F02B3/00
    • F02D41/123F02B1/04
    • A deceleration fuel cut device adapted to interrupt the supply of fuel to an internal combustion engine when a detected actual engine rotational speed is higher than a predetermined value, and simultaneously a detected intake pipe pressure is lower than a predetermined value. The predetermined engine speed value is set to lower values as the detected actual engine temperature increases. The predetermined intake pipe pressure value is determined as a function of the detected actual engine speed. The predetermined intake pipe pressure value and/or the predetermined engine speed value may be set at different values between the time of initiation of cutting off the fuel supply and the time of termination of same, to impart a hysteresis characteristic to the fuel cut operation.
    • 一种减速燃料切断装置,其适用于当检测到的实际发动机转速高于预定值时中断对内燃机的燃料供给,同时检测到的进气管压力低于预定值。 当检测到的实际发动机温度升高时,预定的发动机转速值被设定为较低的值。 预定的进气管压力值被确定为检测到的实际发动机转速的函数。 预定进气管压力值和/或预定发动机转速值可以在切断燃料供应的时间与其终止时间之间设定为不同的值,以赋予燃料切断操作的滞后特性。
    • 6. 发明授权
    • Apparatus for detecting and indicating abnormality in an electronic
control system for internal combustion engines
    • 用于检测和指示用于内燃机的电子控制系统中的异常的装置
    • US4572143A
    • 1986-02-25
    • US703815
    • 1985-02-21
    • Shigeo UmesakiShumpei Hasegawa
    • Shigeo UmesakiShumpei Hasegawa
    • F02D41/00F02D41/02F02D41/22F02D41/24F02D41/26G07C5/08F02B3/00
    • F02D41/28F02D41/02F02D41/22F02D41/266G07C5/0816
    • An apparatus for detecting and indicating abnormality in an electronic control system for an internal combustion engine, which system includes an operation control unit operable on a supply voltage from a first power source to supply a plurality of output means with operation control signals dependent on the values of parameter signals detected by a plurality of input means. A plurality of abnormality detecting circuits detect abnormality in the operation of respective ones of the input and output means, and generate abnormality-indicative signals when abnormality is detected. A memory stores data of the abnormality-indicative signal supplied from the abnormality detecting circuits. Abnormality indicating circuit indicates the data stored in the memory. The memory is operable on a supply voltage from a second power source, and adapted to erase the data stored therein when it starts to be supplied with a supply voltage from the second power source.
    • 一种用于检测和指示用于内燃机的电子控制系统中的异常的装置,该系统包括操作控制单元,该操作控制单元可在来自第一电源的电源电压上操作以向多个输出装置提供取决于值的操作控制信号 由多个输入装置检测的参数信号。 多个异常检测电路检测输入和输出装置的各个操作中的异常,并且当检测到异常时产生异常指示信号。 存储器存储从异常检测电路提供的异常指示信号的数据。 异常指示电路指示存储在存储器中的数据。 存储器可在来自第二电源的电源电压上操作,并且适于在其开始从第二电源提供电源电压时擦除存储在其中的数据。
    • 7. 发明授权
    • Fuel pump control system for internal combustion engines, having a fail
safe function for abnormality in fuel injection valves
    • 用于内燃机的燃油泵控制系统,具有燃油喷射阀异常的故障安全功能
    • US4469065A
    • 1984-09-04
    • US521237
    • 1983-08-08
    • Shumpei HasegawaShigeo Umesaki
    • Shumpei HasegawaShigeo Umesaki
    • F02D41/22F02D41/30F02M37/08F02D1/12
    • F02D41/22F02D41/221F02D41/3082
    • A fuel pump control system for use in an internal combustion engine having fuel injection valves each disposed to be driven by a command signal indicative of a required quantity of fuel being supplied to the engine, corresponding to operating conditions of the engine, and a fuel pump for supplying pressurized fuel to the fuel injection valves, wherein the control system controls the operation of the fuel pump. The control system includes at least one abnormality determining means which is adapted to monitor the above command signal and a signal indicative of the operative state of a corresponding one of the fuel injection valves, and generate an abnormality-indicative signal after the levels of the two signals have become out of a predetermined logical relationship, whereby the fuel pump is rendered inoperative by the abnormality-indicative signal.
    • 一种用于具有燃料喷射阀的内燃机的燃料泵控制系统,每个燃料喷射阀均设置成由指示信号驱动的指示信号驱动,该命令信号与发动机的操作条件相对应地供应给发动机,燃料泵 用于向燃料喷射阀供应加压燃料,其中控制系统控制燃料泵的操作。 控制系统包括至少一个异常判定装置,其适于监视上述指令信号和指示对应的一个燃料喷射阀的操作状态的信号,并且在两个等级之后产生异常指示信号 信号已经变得超出预定的逻辑关系,由此通过异常指示信号使燃料泵不能工作。
    • 8. 发明授权
    • Electronic fuel supply control system for internal combustion engines,
having exhaust gas recirculation control
    • 用于内燃机的电子燃料供应控制系统,具有废气再循环控制
    • US4448178A
    • 1984-05-15
    • US440542
    • 1982-11-10
    • Akihiro YamatoShigeo Umesaki
    • Akihiro YamatoShigeo Umesaki
    • F02D41/02F02B1/04F02D21/08F02D41/32F02D41/36F02D43/00F02M25/07F02M25/06
    • F02D41/005F02D41/32F02D41/36F02B1/04Y02T10/44Y02T10/47
    • In an electronic fuel supply control system for an internal combustion engines, the fuel quantity being supplied to the engine is set to different values in accordance with the operating condition of the engine, between when the exhaust gas recirculation is operated and when it is not operated, for achieving proper air/fuel ratios. Further, immediately after a valve lift command is outputted at full closing of the exhaust gas recirculation valve, which is indicative of opening of the valve, a quantity of fuel set as applicable when the exhaust gas recirculation is not operated is supplied to the engine until the actual valve opening increases to a predetermined value. Immediately after a valve lift command is outputted at opening of the valve, which is indicative of full closing of the valve, a quantity of fuel set as applicable when the exhaust gas recirculation is operated is supplied to the engine until the actual valve opening decreases to a predetermined value. Thus a response lag of the exhaust gas recirculation valve is compensated for.
    • 在用于内燃机的电子燃料供应控制系统中,根据发动机的运行状态,在运行排气再循环与不运转时,向发动机供给的燃料量被设定为不同的值 ,以达到适当的空气/燃料比。 此外,在指示阀打开的排气再循环阀的完全关闭之后立即输出气门升程命令之后,在排气再循环未被运转时适用的燃料量被供给到发动机直到 实际阀开度增加到预定值。 在阀的打开时输出阀提升命令之后,紧接着指示阀的完全关闭,当排气再循环被操作时适用的燃料量被提供给发动机,直到实际阀开度减小到 预定值。 因此,废气再循环阀的响应滞后被补偿。