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    • 33. 发明授权
    • Engine power controller
    • 发动机功率控制器
    • US5282450A
    • 1994-02-01
    • US960640
    • 1992-10-14
    • Masaaki UchidaHiroyuki Itoyama
    • Masaaki UchidaHiroyuki Itoyama
    • F02D41/04F02D9/02F02D35/00F02D43/00
    • F02D43/00F02D35/0023
    • An engine wherein a target air-fuel ratio is changed over according to the running conditions is provided with a device for computing a target throttle opening area based on the accelerator operation and a selected air-fuel ratio. It also includes a device for correcting the throttle opening such that the throttle opening area is equal to a target throttle opening area, a device for computing a fuel amount to be provided to the engine based on the target air-fuel ratio, intake air volume and engine speed, and a device for regulating the fuel supply to the computed amount. In this way, the throttle valve opening is corrected when the air-fuel ratio is changed, fluctuations in the torque generated by the engine are smoothed out, and torque shock due to the air-fuel ratio change-over is thereby prevented.
    • 根据运行条件改变目标空燃比的发动机具有基于加速器运转和所选择的空燃比计算目标节气门开度面积的装置。 它还包括用于校正节气门开度的装置,使得节气门开度面积等于目标节气门开度面积;基于目标空燃比计算提供给发动机的燃料量的装置,进气体积 和发动机速度,以及用于将燃料供应调节到计算量的装置。 以这种方式,当空燃比改变时,节气门开度被校正,由发动机产生的扭矩的波动被平滑,从而防止了由于空燃比转换引起的转矩冲击。
    • 36. 发明授权
    • Device for producing control signal for feedback control of air/fuel
ratio
    • 用于产生空气/燃料比的反馈控制的控制信号的装置
    • US4306957A
    • 1981-12-22
    • US172228
    • 1980-07-25
    • Shigeo IshitaniShinji KimuraHiroshi TakaoMasaaki Uchida
    • Shigeo IshitaniShinji KimuraHiroshi TakaoMasaaki Uchida
    • F02B1/04F02D41/14F02D41/34F02P5/15G01N27/406G01N27/407G01N27/409G01N27/413G01N27/417G05B23/02G01N27/58
    • G01N27/4071F02D41/1476G01N27/4065G01N27/417F02B1/04
    • A device comprising an oxygen-sensitive element to be disposed in a combustion gas exhausted from a combustor to detect deviation of actual air/fuel ratio from a stoichiometric ratio. The element is a combination of two oxygen concentration cells each having a solid electrolyte layer, a measurement electrode layer formed on one side of the electrolyte layer, a reference electrode layer formed on the opposite side and covered with a shield layer. Either measurement electrode layers or reference electrode layers of the two cells are connected to each other, and a constant DC voltage is applied to the element to force a current to flow through solid electrolyte layers of both cells to cause migration of oxygen ions therethrough, from the measurement electrode to the reference electrode in one cell and reversely in the other. The device has a circuit to make a comparison between a fixed reference voltage and an output voltage developed between the measurement and reference electrodes of one cell of the element to produce a high-or-low level control signal according to the result of the comparison. The output voltage is independent of the internal resistance of the element and is scarcely affected by the temperature of the element.
    • 一种装置,其包括氧气敏感元件,其设置在从燃烧器排出的燃烧气体中,以检测实际空气/燃料比与化学计量比的偏差。 该元件是两个氧浓度电池的组合,每个氧浓度电池均具有固体电解质层,在电解质层一侧形成的测量电极层,在相对侧形成并被屏蔽层覆盖的参考电极层。 两个电池的测量电极层或参考电极层彼此连接,并且将恒定的直流电压施加到元件上以迫使电流流过两个电池的固体电解质层,以使氧离子从其中移出,从 测量电极与一个电池中的参考电极反向相反。 器件具有电路,用于比较固定的参考电压和在元件的一个单元的测量参考电极和参考电极之间产生的输出电压,以根据比较结果产生高电平或低电平的控制信号。 输出电压与元件的内阻无关,几乎不受元件温度的影响。