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    Electronic control system for carburetor
    1.
    发明授权
    Electronic control system for carburetor 失效
    化油器电子控制系统

    公开(公告)号：US4250855A

    公开(公告)日：1981-02-17

    申请号：US54432

    申请日：1979-07-03

    申请人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Kiyoshi Kobashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Hidetaka Nohira

    发明人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Kiyoshi Kobashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Hidetaka Nohira

    IPC分类号： F02M7/28 ,  F02D41/02 ,  F02D41/24 ,  F02M7/24

    CPC分类号： F02D41/28 ,  F02D41/02 ,  F02M7/24

    摘要： In a carburetor for an internal combustion engine, a control valve is disposed with an air passage through the carburetor structure to control the flow quantity of air to be mixed with fuel from a float chamber and a pneumatic servo-motor is operatively connected with the control valve to control the opening degree of the valve. The pneumatic pressure applied to the servo-motor is electrically controlled to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed.Pd=f(Pv, N)where the character Pd is the pneumatic pressure applied to the servo-motor, and the characters Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

    摘要翻译： 在用于内燃机的化油器中，控制阀设置有通过化油器结构的空气通道，以控制与浮子室与燃料混合的空气的流量，气动伺服电动机与控制器可操作地连接 阀门来控制阀门的开度。 施加到伺服电动机的气压被电控制以满足关于发动机进气歧管真空度和发动机转速的以下功能。 Pd = f（Pv，N）其中字符Pd是施加到伺服电动机的气压，并且字符Pv和N分别表示发动机进气歧管真空度和发动机转速。

    Electronic control system for internal combustion engines
    2.
    发明授权
    Electronic control system for internal combustion engines 失效
    内燃机电子控制系统

    公开(公告)号：US4248187A

    公开(公告)日：1981-02-03

    申请号：US064871

    申请日：1979-08-08

    申请人： Takeshi Matsui ,  Tokio Kohama ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    发明人： Takeshi Matsui ,  Tokio Kohama ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    IPC分类号： F02D21/08 ,  F02D41/14 ,  F02D41/24 ,  F02D43/00 ,  F02M7/24 ,  F02M25/07 ,  F02B47/08 ,  F02M25/06

    CPC分类号： F02M7/24 ,  F02D41/0077 ,  F02D41/14 ,  F02D41/28 ,  F02M26/39 ,  F02M26/57 ,  F02M2026/009 ,  Y02T10/47

    摘要： In a carburetor and an exhaust gas recirculation system adapted to an internal combustion engine, the system comprises a first servomotor to be operated by pneumatic pressure and a first control valve actuated by the first servomotor to control the quantity of exhaust gases recirculated into an intake manifold from an exhaust pipe, and the carburetor comprises a second servomotor to be operated by pneumatic pressure and a second control valve actuated by the second servomotor to control the flow quantity of air to be mixed with fuel from a float chamber. The pneumatic pressure applied to the first and second servomotors is electrically controlled to satisfy the following function in relation to the engine intake manifold vacuum and the engine speed.Pe=f(Pv, N)where Pe is the pneumatic pressure applied to the servomotors, Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

    摘要翻译： 在适用于内燃机的化油器和废气再循环系统中，该系统包括由气动压力操作的第一伺服电动机和由第一伺服电机致动的第一控制阀，以控制再循环进入歧管的废气量 并且所述化油器包括由气动压力操作的第二伺服电动机和由所述第二伺服电机致动的第二控制阀，以控制与来自浮子室的燃料混合的空气的流量。 施加到第一和第二伺服电动机的气压被电控制以满足关于发动机进气歧管真空度和发动机转速的以下功能。 Pe = f（Pv，N）其中Pe是施加到伺服电机的气动压力，Pv和N分别表示发动机进气歧管真空度和发动机转速。

    Exhaust gas recirculation valve control system and method
    4.
    发明授权
    Exhaust gas recirculation valve control system and method 失效
    排气再循环阀控制系统及方法

    公开(公告)号：US4322799A

    公开(公告)日：1982-03-30

    申请号：US42344

    申请日：1979-05-25

    申请人： Tokio Kohama ,  Takeshi Matsui ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    发明人： Tokio Kohama ,  Takeshi Matsui ,  Hisasi Kawai ,  Akira Nishimatsu ,  Toshikazu Ina ,  Hidetaka Nohira ,  Kiyoshi Kobashi

    IPC分类号： F02M25/07 ,  F02D21/08 ,  F02M25/06 ,  G05B15/02

    CPC分类号： F02D41/0065 ,  Y02T10/47

    摘要： An exhaust gas recirculation system comprises a speed detector for generating an engine rotational speed signal and a reference rotational position detection signal, a pressure sensor for detecting the negative pressure in the intake pipe of an engine to generate a negative pressure signal, a microcomputer responsive to the negative pressure signal and the rotational speed signal generated at the reference rotational position of the engine to compute an amount of exhaust gas recirculation in synchronism with the reference rotational position detection signal, and an electronic control circuit for controlling the opening of an exhaust gas recirculation control valve in accordance with the computed amount.

    摘要翻译： 排气再循环系统包括用于产生发动机转速信号和基准旋转位置检测信号的速度检测器，用于检测发动机的进气管中的负压以产生负压信号的压力传感器，响应于 所述负压信号和所述转速信号在所述发动机的基准旋转位置处产生，以与所述参考旋转位置检测信号同步地计算废气再循环量;以及电子控制电路，用于控制所述排气再循环 控制阀根据计算量。

    Exhaust recirculation system for internal combustion engines
    6.
    发明授权
    Exhaust recirculation system for internal combustion engines 失效
    内燃机排气再循环系统

    公开(公告)号：US4442820A

    公开(公告)日：1984-04-17

    申请号：US416696

    申请日：1982-09-10

    申请人： Toshikazu Ina ,  Hisasi Kawai ,  Tokio Kohama ,  Akira Nishimatsu ,  Yasuhiko Ishida ,  Souichi Matsusita

    发明人： Toshikazu Ina ,  Hisasi Kawai ,  Tokio Kohama ,  Akira Nishimatsu ,  Yasuhiko Ishida ,  Souichi Matsusita

    IPC分类号： F02D21/08 ,  F02M25/07 ,  F02M25/06

    CPC分类号： F02D41/0077 ,  F02M26/57 ,  F02M26/48 ,  Y02T10/47

    摘要： In an exhaust gas recirculation system including a recirculation passage to provide a communication between an intake pipe and an exhaust pipe of an internal combustion engine, a flow control valve associated with a pneumatic servomotor to control the quantity of exhaust gas flowing through the recirculation passage in accordance with the pneumatic pressure applied to the servomotor, and first and second electrically operated valves to selectively apply negative pressure and the atmospheric pressure to the servomotor, a digital computer is adapted to calculate a desired opening degree of the flow control valve in response to an electric signal indicative of operating conditions of the engine, to calculate each energization time of the valves defined by a difference between the actual opening degree of the flow control valve and the calculated value in response to an electric signal indicative of the actual opening degree of the flow control valve, and to generate an output signal indicative of the calculated energization time.

    摘要翻译： 在包括用于提供内燃机的进气管和排气管之间的连通的再循环通道的排气再循环系统中，与气动伺服电动机相关联的流量控制阀控制流过再循环通道的废气量 根据施加到伺服电动机的气动压力，以及第一和第二电动阀，以选择性地向伺服电动机施加负压和大气压力，数字计算机适于响应于所述流量控制阀计算期望的开度 指示发动机的运行状态的电信号，以计算由流量控制阀的实际开度与计算值之间的差异限定的阀的每个通电时间，响应于指示实际开度的电信号 流量控制阀，并产生输出信号指示 计算出的通电时间。

    Exhaust gas recirculation system for internal combustion engines
    7.
    发明授权
    Exhaust gas recirculation system for internal combustion engines 失效
    内燃机排气再循环系统

    公开(公告)号：US4242997A

    公开(公告)日：1981-01-06

    申请号：US62556

    申请日：1979-07-31

    申请人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Tokuta Inoue ,  Kiyohiko Oishi ,  Kiyoshi Kobashi

    发明人： Tokio Kohama ,  Takeshi Matsui ,  Akira Nishimatsu ,  Tokuta Inoue ,  Kiyohiko Oishi ,  Kiyoshi Kobashi

    IPC分类号： F02D21/08 ,  F02M25/07 ,  F02M25/06

    CPC分类号： F02D41/0077 ,  F02M26/57 ,  F02M26/60 ,  Y02T10/47

    摘要： In an exhaust gas recirculation system for an internal combustion engine, a flow control valve is disposed within a recirculation pipe and operatively connected to a pneumatically operated servomotor to control the flow quantity of exhaust gases through the recirculation pipe, and an orifice is disposed within the recirculation pipe upstream of the valve to form a space between the valve and the orifice. A pressure regulator serves to modulate negative pressure from an engine intake manifold to the servomotor on a basis of pneumatic pressure applied thereto and pressure in the space. The pneumatic pressure applied to the pressure regulator is electrically controlled to satisfy the following equation.Pd=f(Pv, N)where the character Pd is the pneumatic pressure applied to the pressure regulator, and the characters Pv and N respectively indicate the negative pressure in the intake manifold and the engine speed.

    摘要翻译： 在用于内燃机的排气再循环系统中，流量控制阀设置在再循环管内并且可操作地连接到气动伺服电动机以控制通过再循​​环管的废气的流量，并且孔设置在内 再循环管在阀的上游，以在阀和孔之间形成空间。 压力调节器用于基于施加到其上的气动压力和空间中的压力来调节从发动机进气歧管到伺服电动机的负压。 施加到压力调节器的气压被电控制以满足以下等式。 Pd = f（Pv，N）其中字符Pd是施加到压力调节器的气压，并且字符Pv和N分别表示进气歧管中的负压和发动机转速。

    Measurement of variations in internal combustion engine output
    9.
    发明授权
    Measurement of variations in internal combustion engine output 失效
    内燃机输出变化的测量

    公开(公告)号：US4532798A

    公开(公告)日：1985-08-06

    申请号：US615910

    申请日：1984-05-31

    申请人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

    发明人： Tokio Kohama ,  Hideki Obayashi ,  Hisasi Kawai ,  Toshikazu Ina ,  Takashi Shigematsu ,  Setsuo Tokoro

    IPC分类号： G01M15/04 ,  G01M15/08 ,  G01M15/00

    CPC分类号： G01M15/046 ,  G01M15/08 ,  F02D2200/1015

    摘要： In a method for measuring variations in the output of an internal combustion engine, at least one of signals respectively representing an engine speed, torque, and internal cylinder pressure of the internal combustion engine during the firing strokes of the engine is obtained. A periodical and pulsating change in the obtained signal is detected. A differential value at a portion of the change of the signal having a maximum gradient is then detected. Another method provides measuring variations in the output of the internal combustion engine by calculating the difference between the maximum and minimum values of the change of the obtained signal. Still another method provides measuring variations in the output of the internal combustion engine by correcting the obtained value in accordance with the engine speed. Still another method provides measuring variations in the output of the internal combustion engine by calculating the difference between consecutive changes.

    摘要翻译： 在一种用于测量内燃机的输出变化的方法中，获得分别代表发动机的点火行程期间内燃机的发动机转速，转矩和内汽缸压力的信号中的至少一个。 检测到所获得的信号中的周期性和脉动变化。 然后检测具有最大梯度的信号的变化的一部分的差分值。 另一种方法通过计算获得的信号的变化的最大值和最小值之间的差异来提供内燃机输出的测量变化。 另一种方法通过根据发动机转速校正获得的值来提供内燃机的输出的测量变化。 另一种方法通过计算连续变化之间的差异来提供内燃机输出的测量变化。

    Dual sensitivity torque detector
    10.
    发明授权
    Dual sensitivity torque detector 失效

    公开(公告)号：US4503713A

    公开(公告)日：1985-03-12

    申请号：US486832

    申请日：1983-04-20

    申请人： Hideki Obayashi ,  Tokio Kohama ,  Kimitaka Saito ,  Hisasi Kawai ,  Toshikazu Ina

    发明人： Hideki Obayashi ,  Tokio Kohama ,  Kimitaka Saito ,  Hisasi Kawai ,  Toshikazu Ina

    IPC分类号： G01L3/10 ,  G01L3/14 ,  G01L3/02

    CPC分类号： G01L3/1407 ,  G01L3/109

    摘要： A torque detector, particularly a torque detector for detecting a torque applied to a torque transmission shaft which is connected to a load such as a wheel of an automobile, comprises a first shaft connected to a driving shaft, a second shaft connected to a torque transmission shaft, and a plurality of elastic members, each of which is interposed between the first shaft and the second shaft for transmitting the torque of the first shaft to the second shaft while receiving the compression force between the first shaft and the second shaft when the driving shaft is driven. The first shaft comprises a flange portion wherein a plurality of long grooves are formed so as to extend in the rotating direction thereof. The second shaft comprises a flange portion wherein a plurality of long holes are formed so as to extend in the rotating direction thereof and penetrate therethrough at such positions as to be substantially opposed to said long grooves. Each of the elastic members is accommodated within each of the long holes. The projecting side portion of each of the elastic members is accommodated within each of the long grooves. The long holes are grouped into two kinds of long holes having different lengths in the rotating direction of the second shaft. One kind of long holes have a length equal to that of the long groove of the first shaft while the other kind of long holes have a length longer than that of one kind of long holes by a predetermined angular distance. Until the applied torque reaches a predetermined value, the first shaft is connected to the second shaft only through one kind of elastic members to decrease the total spring constant thereof and when the applied torque exceeds the predetermined value, the first shaft is connected to the second shaft through all of the elastic members to increase the total spring constant thereof. The torque detector further comprises a data processor by which the angular phase difference between the first shaft and the second shaft, which occurs due to the compression of the elastic members is detected and torque is calculated from the detected angular phase difference.