公开(公告)号：US4616619A

公开(公告)日：1986-10-14

申请号：US630682

申请日：1984-07-13

申请人： Kimitaka Saito ,  Tokio Kohama ,  Tsuneyuki Egami ,  Tsutomu Saito ,  Hiroshi Takahashi ,  Kunihiko Sato

发明人： Kimitaka Saito ,  Tokio Kohama ,  Tsuneyuki Egami ,  Tsutomu Saito ,  Hiroshi Takahashi ,  Kunihiko Sato

IPC分类号： F02D41/10 ,  F02D41/14

CPC分类号： F02D41/107 ,  F02D41/1487

摘要： A method for controlling the air-fuel ratio in an internal combustion engine in which the correction value of a transient fuel injection amount is decided, at a predetermined interval, in accordance with the acceleration or deceleration state of the engine, and the amount of fuel injection supplied to the engine is corrected by the decided correction value. In the process of the correction, the deviation of the air-fuel ratio from a reference air-fuel ratio in acceleration or deceleration of the engine is detected, and the correction value of the fuel injection amount correction in the transient state of the engine in accordance with the detected air-fuel ratio deviation is determined. In the correction of amount of fuel injection in the transient state of the engine, the correction value is decided on the basis of a factor for deciding the correction value and the blunted value of the factor for deciding the correction value.

摘要翻译： 一种用于控制内燃机中的空燃比的方法，其中根据发动机的加速或减速状态以预定间隔决定瞬时燃料喷射量的校正值，并且燃料量 提供给发动机的喷射通过所确定的校正值来校正。 在校正过程中，检测到发动机的加速或减速中的空燃比与参考空燃比的偏差，并且发动机的过渡状态下的燃料喷射量校正的校正值 根据检测到的空燃比偏差来确定。 在发动机的过渡状态下的燃料喷射量的校正中，基于用于决定校正值的因子和用于决定校正值的系数的钝化值来决定校正值。

公开(公告)号：US4633840A

公开(公告)日：1987-01-06

申请号：US690502

申请日：1985-01-10

申请人： Tsutomu Saito ,  Tsuneyuki Egami ,  Tokio Kohama ,  Kimitaka Saito ,  Hiroshi Takahashi ,  Kunihiko Sato

发明人： Tsutomu Saito ,  Tsuneyuki Egami ,  Tokio Kohama ,  Kimitaka Saito ,  Hiroshi Takahashi ,  Kunihiko Sato

IPC分类号： F02D41/14

CPC分类号： F02D41/1487 ,  F02D41/1483

摘要： Air-fuel ratio control of an internal combustion engine is performed using sensors for detecting operating conditions of the engine, such as the intake air amount, engine rotational speed, or air-fuel ratio; a fuel injection valve driven by an electrical signal to inject fuel; and a control circuit for receiving signals from the operating condition sensors, performing predetermined operations and generating an electrical signal for driving the fuel injection valve. The control circuit performs a step of calculating an air-fuel ratio variation D(A/F) with respect to an optimum air-fuel ratio based on the ratio of a change .DELTA.F, of an air-fuel ratio correction signal F during acceleration under air-fuel ratio feedback control based on a signal from the air-fuel ratio sensor, to an acceleration amount A, and a step of controlling a transient fuel correction ratio f(AEW) based on the obtained air-fuel ratio variation D(A/F).

摘要翻译： 使用用于检测发动机的运转状况的传感器（例如进气量，发动机转速或空燃比）来执行内燃机的空燃比控制; 由电信号驱动以喷射燃料的燃料喷射阀; 以及控制电路，用于从操作状态传感器接收信号，执行预定操作并产生用于驱动燃料喷射阀的电信号。 控制电路基于加速期间的空燃比校正信号F的变化率DELTA F的比率来执行相对于最佳空燃比的空燃比变化量D（A / F）的计算步骤 基于来自空燃比传感器的信号的空燃比反馈控制到加速量A，以及基于获得的空燃比变化D（AEW）控制瞬时燃料校正比f（AEW）的步骤 A / F）。

公开(公告)号：US4499882A

公开(公告)日：1985-02-19

申请号：US566815

申请日：1983-12-29

申请人： Kimitaka Saito ,  Tokio Kohama ,  Tsuneyuki Egami ,  Tsutomu Saito ,  Susumu Nogami ,  Yukio Suzuki

发明人： Kimitaka Saito ,  Tokio Kohama ,  Tsuneyuki Egami ,  Tsutomu Saito ,  Susumu Nogami ,  Yukio Suzuki

IPC分类号： F02D41/10 ,  F02D41/04 ,  F02D41/14 ,  F02B3/00

CPC分类号： F02D41/047 ,  F02D41/1481

摘要： A system for controlling the air-fuel ratio of an internal combustion engine includes a transient fuel amount increasing device for regulating the supply fuel amount in the transient state of the engine on the basis of the detection of the transient state of the engine, an air-fuel ratio deviation detecting device for detecting the air-fuel ratio deviation from the optimum air-fuel ratio, and a transient fuel increase amount correcting device for correcting the fuel increase amount in the transient state of the engine in accordance with the air-fuel ratio deviation detected by the air-fuel ratio deviation detecting device. The air-fuel deviation from the optimum air-fuel ratio of the air-fuel mixture upon deposition of a deposit on the back surface of the intake valve is prevented, and the drivability of an automobile is improved.

摘要翻译： 用于控制内燃机的空燃比的系统包括用于基于发动机的过渡状态的检测来调节发动机的过渡状态下的供给燃料量的瞬时燃料量增加装置，空气 用于检测与最佳空燃比的空燃比偏差的燃料比偏差检测装置，以及用于根据空燃比校正发动机的过渡状态下的燃料增加量的瞬时燃料增加量校正装置 由空燃比偏差检测装置检测出的比率偏差。 防止了在进气门背面沉积沉积物时空气燃料混合物的最佳空燃比的空气 - 燃料偏差，提高了汽车的驾驶性能。

公开(公告)号：US4635200A

公开(公告)日：1987-01-06

申请号：US619210

申请日：1984-06-11

申请人： Tsuneyuki Egami ,  Tsutomu Saito ,  Tokio Kohama ,  Kimitaka Saito ,  Kunihiko Sato ,  Hiroshi Takahashi

发明人： Tsuneyuki Egami ,  Tsutomu Saito ,  Tokio Kohama ,  Kimitaka Saito ,  Kunihiko Sato ,  Hiroshi Takahashi

IPC分类号： F02B77/08 ,  F02D41/14 ,  F02B3/00

CPC分类号： F02D41/148 ,  F02B77/08 ,  F02D41/2454 ,  F02D41/2441

摘要： A system for controlling the air-fuel ratio in an internal combustion engine provided with a fuel injector. The system has an O.sub.2 sensor for issuing signals on two levels, one corresponding to a high air-fuel ratio, the other to a low air-fuel ratio, and a feedback control device responsive to the signal from the sensor. The feedback control calculates a correction factor for maintaining the air-fuel ratio to a desired value during steady operation and for indicating the deviation in the ratio from the desired value during transient conditions. This deviation is employed to generate a transient correction value which is selected to minimize the deviation during transient conditions.

摘要翻译： 一种用于控制设置有燃料喷射器的内燃机中的空燃比的系统。 该系统具有用于在两个水平上发出信号的O2传感器，一个对应于高空燃比，另一个对应于低空燃比，以及响应于来自传感器的信号的反馈控制装置。 反馈控制在稳定运行期间计算用于将空燃比维持在期望值的校正因子，并且用于在瞬态条件期间指示该比值与期望值的偏差。 该偏差用于产生瞬态校正值，其被选择以使过渡条件下的偏差最小化。

公开(公告)号：US4475388A

公开(公告)日：1984-10-09

申请号：US433411

申请日：1982-10-07

申请人： Hisasi Kawai ,  Norihito Tokura ,  Tokio Kohama ,  Kenji Kanehara ,  Takayoshi Ito ,  Kazutaka Hasegawa

发明人： Hisasi Kawai ,  Norihito Tokura ,  Tokio Kohama ,  Kenji Kanehara ,  Takayoshi Ito ,  Kazutaka Hasegawa

IPC分类号： G01F1/68 ,  G01F1/696 ,  G01F1/698 ,  G01F15/04 ,  G01P5/12

CPC分类号： G01F1/698 ,  G01F1/696

摘要： A method for measuring the flow rate of fluid such as liquified petroleum gas fuel for an automobile fuel. A signal of the fluid flow rate and a signal of the fluid temperature are produced by using the signals from an electric heater and a first, second, and third temperature-dependent resistors in a signal processing circuit. The produced signals are supplied to a computer circuit to carry out modification, linearization, and multiplication by a conversion constant for linearization which is corrected regarding temperature characteristic. The result of calculation in the computer circuit is displayed on a display device.

摘要翻译： 一种用于测量汽车燃料液化石油气燃料的流体流量的方法。 通过使用来自电加热器的信号和信号处理电路中的第一，第二和第三温度依赖电阻器来产生流体流速的信号和流体温度的信号。 所产生的信号被提供给计算机电路，以通过针对温度特性校正的线性化的转换常数进行修改，线性化和乘法。 计算机电路中的计算结果显示在显示装置上。

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。

公开(公告)号：US4257382A

公开(公告)日：1981-03-24

申请号：US85319

申请日：1979-10-16

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 ,  F02D43/00 ,  F02M7/24 ,  F02M7/28 ,  F02M25/07 ,  F02B47/08

CPC分类号： F02D41/005 ,  F02M7/24 ,  Y02T10/47

摘要： In an exhaust gas recirculation system adapted to an internal combustion engine, the system comprises a servomotor to be operated by pneumatic pressure and a control valve actuated by the servomotor to control the quantity of exhaust gases recirculated into an intake manifold from an exhaust pipe. The pneumatic pressure applied to the servomotor is electrically controlled without undesired errors 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 servomotor, Pv and N respectively indicate the engine intake manifold vacuum and the engine speed.

摘要翻译： 在适于内燃机的废气再循环系统中，该系统包括由气动压力操作的伺服电动机和由伺服电机致动的控制阀，以控制从排气管道再循环到进气歧管中的废气量。 施加到伺服电动机的气压被电控制，没有不期望的误差，以满足关于发动机进气歧管真空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。

公开(公告)号：US4550308A

公开(公告)日：1985-10-29

申请号：US486840

申请日：1983-04-20

申请人： Norihito Tokura ,  Hisasi Kawai ,  Tokio Kohama ,  Kenji Kanehara

发明人： Norihito Tokura ,  Hisasi Kawai ,  Tokio Kohama ,  Kenji Kanehara

IPC分类号： H03M1/52 ,  H03K7/08 ,  H03M1/00 ,  H03K13/20

CPC分类号： H03K7/08 ,  H03M1/504

摘要： A signal converting apparatus for converting voltage into a pulse signal with a corresponding pulse-width comprises a switching circuit for selecting either one of an input voltage to be converted or a constant voltage depending upon a binary switching signal. The selected voltage is integrated with respect to time by an integrating circuit. When the output from the integrating circuit has reached an upper limit voltage or a lower limit voltage, the above-mentioned binary switching signal which is an output signal of this signal converting apparatus is inverted by a comparator/inverter circuit.

摘要翻译： 用于将电压转换成具有相应脉冲宽度的脉冲信号的信号转换装置包括用于根据二进制切换信号选择要转换的输入电压或恒定电压中的任一个的开关电路。 所选择的电压通过积分电路相对于时间积分。 当积分电路的输出达到上限电压或下限电压时，作为该信号转换装置的输出信号的上述二进制开关信号由比较器/反相器电路反相。

公开(公告)号：US4537172A

公开(公告)日：1985-08-27

申请号：US544416

申请日：1983-10-21

申请人： Kenji Kanehara ,  Tokio Kohama ,  Hisasi Kawai ,  Norihito Tokura

发明人： Kenji Kanehara ,  Tokio Kohama ,  Hisasi Kawai ,  Norihito Tokura

IPC分类号： F02M21/02 ,  F02D19/02 ,  F02D41/14 ,  F02D41/18 ,  G01F1/68 ,  G01F1/696 ,  G01F1/698 ,  F02M21/04

CPC分类号： G01F1/698 ,  F02D19/023 ,  F02D19/027 ,  F02D41/14 ,  F02D41/187 ,  G01F1/68 ,  G01F1/696 ,  F02M21/0206 ,  F02M21/0212 ,  Y02T10/32

摘要： In a fuel supply control apparatus for an internal-combustion engine, liquid fuel is vaporized and is supplied to a fuel gas passage leading to an intake air passage. The flow rate of the vaporized fuel flowing through the fuel gas passage is detected, and the flow rate of the fuel is calculated in accordance with the load of the engine. As a result, feedback control of the fuel to be supplied to the engine is carried out so that the detected flow rate of the vaporized fuel is close to the calculated flow rate of the fuel.

摘要翻译： 在用于内燃机的燃料供给控制装置中，液体燃料蒸发并被供给到通向进气通道的燃料气体通道。 检测流过燃料气体通道的汽化燃料的流量，并根据发动机的负荷来计算燃料的流量。 结果，进行向发动机供给的燃料的反馈控制，使得所检测到的汽化燃料的流量接近计算出的燃料流量。

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。