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公开(公告)号：US4846133A
公开(公告)日：1989-07-11
申请号：US178601
申请日：1988-04-07
申请人： Hideo Shiraishi , Yoshinobu Kido , Kenji Ushijima , Setsuhiro Shimomura , Hichirou Ohtani , Shigeru Tamura
发明人： Hideo Shiraishi , Yoshinobu Kido , Kenji Ushijima , Setsuhiro Shimomura , Hichirou Ohtani , Shigeru Tamura
CPC分类号： G01F1/6983 , F02B77/04 , F02D41/187
摘要： A fuel control apparatus comprises a fuel supplying means for supplying fuel to an internal combustion engine depending on the operation of a fuel control valve, a hot-wire type intake air quantity sensor disposed in an air-intake passage for the internal combustion engine to detect the quantity of air passing therethrough, a memory means which is adapted to accumulate an output from the intake air quantity sensor, the number of revolution of sand internal combustion engine, or the length of time in operation of the internal combustion engine, and holds the value obtained by the accumulation after the engine is stopped, and a control means for heating a hot wire at a temperature higher than a temperature in the normal operation so as to burn off a deposit on the hot wire after the accumulated value in the memory means reached a predetermined value and the engines is stopped.
摘要翻译： 燃料控制装置包括：燃料供给装置，用于根据燃料控制阀的操作向内燃机供给燃料;热线型吸入空气量传感器，设置在内燃机的进气通道中，以检测 通过其中的空气量，适于累积进气量传感器的输出的存储装置，砂内燃机的转数或内燃机的运行时间，并保持 通过发动机停止后的蓄积获得的值;以及控制装置，用于在高于正常操作的温度的温度下加热热丝，以便在存储装置中的累积值之后烧掉热丝上的沉积物 达到预定值并且发动机停止。
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公开(公告)号：US5167152A
公开(公告)日：1992-12-01
申请号：US813050
申请日：1991-12-23
CPC分类号： F02D41/187 , G01F1/696
摘要： An input processing circuit for an air flow sensor comprising a differential amplifier connected through two lines to an air flow sensor and having an operational amplifier an output signal from the air flow sensor and sends a result of this processing to an analogue value - digital value conversion integrated circuit. An output signal from the air flow sensor is supplied to the differential amplifier through a filter circuit so as to prevent an occurrence of error in measuring the amount of sucked air for an internal combustion engine due to various noises. A connection of an inverting input terminal end of the differential amplifier to a ground through a resistor prevents an error caused by a breakage of a reference voltage line connected between the air flow sensor and the input processing circuit. A differential input amplifier circuit also prevents an error caused by a variation in potential resulting from consumption current of an air flow sensor or the like from being generated.
摘要翻译： 一种用于空气流量传感器的输入处理电路，包括通过两条线连接到空气流量传感器的差分放大器，并具有运算放大器来自空气流量传感器的输出信号，并将该处理的结果发送到模拟值 - 数字值转换 集成电路。 来自空气流量传感器的输出信号通过滤波电路被提供给差分放大器，以防止由于各种噪声而测量内燃机的吸入空气量的误差。 通过电阻将差分放大器的反相输入端与接地之间的连接，可防止连接在空气流量传感器与输入处理电路之间的基准电压线的断线引起的误差。 差分输入放大器电路还防止由空气流量传感器等的消耗电流产生的电位变化引起的误差产生。
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公开(公告)号：US5116356A
公开(公告)日：1992-05-26
申请号：US667510
申请日：1991-03-11
申请人： Satoru Ohkubo , Setsuhiro Shimomura
发明人： Satoru Ohkubo , Setsuhiro Shimomura
CPC分类号： F02D35/023 , F02D37/02 , F02D41/32 , F02P5/153 , Y02T10/46
摘要： The inner pressure of cylinder of an internal combustion engine and the crank angle are detected when the engine is in steady state. On the basis of the values as detected, at least one of a fuel quantity or an ignition timing is determined whereby an amount of fuel to be injected to the cylinder or an ignition timing is controlled.
摘要翻译： 当发动机处于稳定状态时，检测内燃机气缸的内压和曲柄角。 基于检测到的值，确定燃料量或点火正时中的至少一个，由此控制喷射到气缸的燃料量或点火正时。
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公开(公告)号：US5058552A
公开(公告)日：1991-10-22
申请号：US497056
申请日：1990-03-21
CPC分类号： F02D35/023 , F02D37/02 , F02D41/1406 , F02P5/045 , F02P5/153 , F02B1/04 , Y02T10/46
摘要： An engine control apparatus is provided with a control unit in which a fuel supply quantity Q.sub.f or a ignition timing .theta..sub.i is corrected to maximize an evaluation parameter A=P.sub.i /(Q.sub.a /N) obtained on the basis of a suction air quantity Q.sub.a, an engine speed N and a mean effective pressure P.sub.i in a engine, or to maximize a parameter B=P.sub.i /P.sub.b obtained on the basis of a suction pipe pressure P.sub.b and the mean effective pressure P.sub.i, or to maximize a maximum pressure P.sub.max or a mean effective pressure P.sub.i for every combustion cycle, so that control is performed on the basis of the result of the above correction. The control unit also performs feedback control of the fuel supply quantity Q.sub.f and corrects the ignition timing. Further, the control unit performs feedback control in a predetermined load-operation range of the engine, and stops the feedback control and corrects the fuel supply quantity Q.sub.f out of said predetermined load-operation range of the engine.
摘要翻译： 发动机控制装置设置有控制单元，其中燃料供给量Qf或点火正时θi被校正，以使得基于吸入空气量Qa获得的评估参数A = Pi /（Qa / N）最大化， 发动机转速N和发动机中的平均有效压力Pi，或者最大化基于吸入管压力Pb和平均有效压力Pi获得的参数B = Pi / Pb，或者使最大压力Pmax或 每个燃烧循环的平均有效压力Pi，从而基于上述校正的结果进行控制。 控制单元也对燃料供给量Qf进行反馈控制，并修正点火正时。 此外，控制单元在发动机的预定负载操作范围内执行反馈控制，并且停止反馈控制，并且在发动机的预定负载操作范围之外校正燃料供给量Qf。
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公开(公告)号：US5050428A
公开(公告)日：1991-09-24
申请号：US672784
申请日：1991-03-21
CPC分类号： F02D41/28 , F02D41/187 , G01F1/698
摘要： An apparatus for measuring an air flow intake of an internal combustion engine which comprises an air flow sensor for measuring the level of the air flow intake and an interface circuit for receiving an output signal from the sensor. The air flow sensor includes a current output circuit which outputs a current corresponding to the level of the air flow intake as the output signal of the sensor, and the interface circuit includes a current to voltage converter which converts the current from the sensor into a voltage signal and outputs it to an A/D converter included in a fuel injection unit.
摘要翻译： 一种用于测量内燃机的空气流入口的装置，包括用于测量空气流入口的水平的气流传感器和用于接收来自传感器的输出信号的接口电路。 空气流量传感器包括电流输出电路，其输出对应于空气流入口的电平的电流作为传感器的输出信号，并且接口电路包括电流 - 电压转换器，其将来自传感器的电流转换为电压 信号并将其输出到包括在燃料喷射单元中的A / D转换器。
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公开(公告)号：US4757793A
公开(公告)日：1988-07-19
申请号：US4445
申请日：1987-01-20
CPC分类号： F02D41/187
摘要： A fuel injection control system for an internal combustion engine having means for limiting a fuel amount to be supplied to the engine according to an output of an air flow sensor to a predetermined upper limit value, and means for correcting the intake air flow rate by the output of the air flow sensor when the opening of an intake air throttle valve is opened at a predetermined value, thereby limiting the output of the sensor to the predetermined upper limit value in case that the output of the sensor increases larger than the actual value and correcting the air density if different from a reference by the correcting means.
摘要翻译： 一种用于内燃机的燃料喷射控制系统，具有根据空气流量传感器的输出将供给到发动机的燃料量限制在预定上限值的装置，以及用于将进气流量由 当进气节流阀的打开以预定值打开时，空气流量传感器的输出，从而在传感器的输出增加大于实际值的情况下将传感器的输出限制在预定的上限值，以及 如果与校正装置的参考值不同，则校正空气密度。
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公开(公告)号：US4667632A
公开(公告)日：1987-05-26
申请号：US846142
申请日：1986-03-31
CPC分类号： F02D41/14 , F02D31/002
摘要： An RPM control apparatus for an internal combustion engine including a first limiter which suppresses an RPM feedback control signal indicating a target suction quantity or a target suction pipe pressure within a predetermined range that is set necessary and sufficient for covering a fluctuation range attributed to a no-load loss of the engine, and a second limiter which suppresses a suction feedback control signal on the basis of the output of the first limiter and an actual suction air quantity or suction pipe pressure within a predetermined range that is set necessary and sufficient for covering a fluctuation range attributed to the density of suction air, etc.
摘要翻译： 一种用于内燃机的转速控制装置，包括第一限制器，其将表示目标吸入量或目标吸入管压力的RPM反馈控制信号抑制在预定范围内，该预定范围被设置为必要且足以覆盖归因于否的波动范围 发动机的负载损失，以及第二限制器，其基于第一限制器的输出和实际吸入空气量或吸入管压力在预定范围内抑制吸入反馈控制信号，所述预定范围被设置为必要且足够覆盖 归因于吸入空气的密度等的波动范围
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公开(公告)号：US4609452A
公开(公告)日：1986-09-02
申请号：US698016
申请日：1985-02-04
申请人： Setsuhiro Shimomura
发明人： Setsuhiro Shimomura
IPC分类号： G01N27/419 , G01N27/27 , G01N27/406 , G01N27/409 , G01N27/416 , G01N27/417 , G01N27/46
CPC分类号： G01N27/417 , G01N27/4065
摘要： An engine air/fuel ratio sensing device for measuring the oxygen partial pressure or concentration in the exhaust gas of an engine. The device has a sensor and a control circuit coupled to each other. The sensor consists of an electrolyte oxygen pump cell and an electrolyte oxygen sensor cell, both cells having a gap portion therebetween. The control circuit provides a pumping current through a current limiting resistor to the pump cell and measures two terminal voltages across the current limiting resistor to derive the actual pump current and the internal resistance of the pump cell, the latter being converted into the actual temperature to which the sensor is exposed. The actual pump current and the actual temperature are used to correct the actual pump current to a proper pump current dependent on the temperature, in accordance with a predetermined equation.
摘要翻译： 一种用于测量发动机排气中氧分压或浓度的发动机空气/燃料比检测装置。 该装置具有彼此耦合的传感器和控制电路。 传感器由电解质氧泵电池和电解质氧传感器电池构成，两个电池在它们之间具有间隙部分。 控制电路通过限流电阻器向泵浦电池提供泵浦电流，并测量限流电阻器两端的两端电压，以得出实际的泵浦电流和泵电池的内阻，后者转换成实际温度 传感器暴露在哪里。 实际的泵浦电流和实际的温度用于根据预定的方程将实际的泵浦电流校正到取决于温度的适当泵浦电流。
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公开(公告)号：US4989565A
公开(公告)日：1991-02-05
申请号：US433298
申请日：1989-11-08
申请人： Setsuhiro Shimomura , Akira Demizu , Hitoshi Inoue
发明人： Setsuhiro Shimomura , Akira Demizu , Hitoshi Inoue
CPC分类号： F02D31/005 , F02D41/083
摘要： A rotational speed controller for an internal combustion engine of a vehicle has an air bypass passage which bypasses the throttle valve of the engine. A solenoid valve controls the air intake rate through the bypass passage. The output current of a generator which is driven by the engine is monitored by a current sensor. Based on the current which is sensed, an air intake adjuster calculates the change in the air intake rate through the bypass passage necessary to compensate for the load exerted on the engine by the generator so as to maintain a constant engine speed. The solenoid valve is controlled to change the air intake rate through the bypass passage by the amount calculated by the air intake adjuster. The change in the air intake rate can be calculated on the basis of the level of the generator current and/or the rate of change of the generator current. When a period sensor detects that the generator current is fluctuating with a prescribed amplitude and period, the air intake adjuster calculates the change in the air intake rate on the basis of the average value of the generator current. At other times, it calculates the change in the air intake rate using the instantaneous value of the generator current.
摘要翻译： 用于车辆内燃机的转速控制器具有绕过发动机的节流阀的空气旁通通道。 电磁阀通过旁路通道控制进气速率。 由发动机驱动的发电机的输出电流由电流传感器监测。 基于感测的电流，进气调节器计算通过旁路通路进行的进气速度的变化，以补偿由发电机施加在发动机上的负荷，从而保持恒定的发动机转速。 电磁阀被控制以通过旁路通道改变通过进气调节器计算的量的进气速率。 可以基于发电机电流的电平和/或发电机电流的变化率来计算进气速率的变化。 当周期传感器检测到发电机电流以规定的振幅和周期波动时，进气调节器基于发电机电流的平均值来计算进气速率的变化。 在其他时间，它使用发电机电流的瞬时值来计算进气速率的变化。
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公开(公告)号：US4979481A
公开(公告)日：1990-12-25
申请号：US411286
申请日：1989-09-22
申请人： Setsuhiro Shimomura , Seiji Wataya
发明人： Setsuhiro Shimomura , Seiji Wataya
CPC分类号： F02D41/008 , F02D41/0087 , F02D41/22 , F02D2200/1015 , F02D41/1498
摘要： A control apparatus for an internal combustion engine has cylinders each of which is provided with an exclusive fuel injection valve individually driven their openings. Each cylinder has a misfiring detecting means for detecting misfiring of that cylinder. The control apparatus includes a drive stopping means for stopping the driving of the fuel injection valve corresponding to a misfired cylinder so as to stop fuel supply to that misfired cylinder. The apparatus is further provided an air-to-fuel ratio sensor in the exhaust path of the engine so that when misfiring of the cylinder is detected, the fuel injection valves remain controlled through a feedback control where the openings of the normally fired cylinders are controlled in accordance with the air-to-fuel ratio signal outputted from the air-to-fuel ratio sensor in such a way that the apparent air-to-fuel ratio of the cylinders is given by an equation L=nLo/(n-p) where L is the apparent value of the air-to-fuel ratio of the cylinders when p cylinders are misfired, n is the number of cylinders, Lo is the air-to-fuel ratio of the cylinders when all of the cylinders are normally operating, and p is the number of misfired cylinders.
摘要翻译： 用于内燃机的控制装置具有各自具有分别驱动其开口的专用燃料喷射阀的气缸。 每个气缸具有用于检测该气缸的失火的失火检测装置。 控制装置包括用于停止与失火气缸相对应的燃料喷射阀的驱动的驱动停止装置，以便停止向该失火气缸供油。 该设备还在发动机的排气路径中设置空气 - 燃料比传感器，使得当检测到气缸的失火时，燃料喷射阀通过反馈控制保持控制，其中正常燃烧的气缸的开口被控制 根据从空气 - 燃料比传感器输出的空燃比信号，使得气缸的表观空燃比由方程式L = nLo /（np）给出，其中 L是当p气缸失火时气缸的空燃比的表观值，n是气缸数，Lo是当所有气缸正常工作时气缸的空燃比， 和p是失火气瓶的数量。
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