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1. 发明授权

US4303049A Coarse and fine air supply control for closed-loop controlled carbureted internal combustion engines 失效
标题翻译：用于闭环控制的化油内燃机的粗细和精细的空气供应控制
公开(公告)号：US4303049A
公开(公告)日：1981-12-01
申请号：US55396
申请日：1979-07-06
申请人： Kenji Ikeura , Masaaki Saito , Michiyoshi Yamane , Hiroshi Sanbuichi , Akio Isobe
发明人： Kenji Ikeura , Masaaki Saito , Michiyoshi Yamane , Hiroshi Sanbuichi , Akio Isobe
IPC分类号： F02D41/14 , F02D35/00 , F02M7/24 , F02B33/00 , F02B75/10 , F02G3/00 , F02M7/00
CPC分类号： F02D35/0061 , F02M7/24
摘要： In a closed loop air-fuel mixture control system for carburetor-equipped internal combustion engines, an exhaust gas sensor provides a feedback signal to a control unit where the signal is modified to meet the control characteristics of the closed loop. The modified feedback signal is converted into digital pulses whose width varies with the amplitude of the feedback signal. Additional air is supplied to the engine through an air bleed in accordance with the magnitude of the analog feedback signal to provide a coarse control of air-fuel ratio and in response to the digital pulses to provide a fine control of the ratio. The mixture is controlled in a wide range of ratios to eliminate the need for calibration which would be required for fitting the closed loop system to the time-varying characteristics of individual carburetors.
摘要翻译：在用于装载化油器的内燃机的闭环空气燃料混合物控制系统中，排气传感器向控制单元提供反馈信号，其中信号被修改以满足闭环的控制特性。修改的反馈信号被转换成数字脉冲，其宽度随着反馈信号的幅度而变化。额外的空气根据模拟反馈信号的大小通过排气被提供给发动机，以提供空燃比的粗略控制，并且响应于数字脉冲以提供比率的精确控制。将混合物控制在较宽的比例范围内，以消除将闭环系统安装到单个化油器的时变特性所需的校准。

2. 发明授权

US4173956A Closed loop fuel control in accordance with sensed engine operational condition 失效
标题翻译：根据感测到的发动机运行状况，闭环燃料控制
公开(公告)号：US4173956A
公开(公告)日：1979-11-13
申请号：US852352
申请日：1977-11-17
申请人： Kenji Ikeura , Masaaki Saito , Michiyoshi Yamane
发明人： Kenji Ikeura , Masaaki Saito , Michiyoshi Yamane
IPC分类号： F02D41/14 , F02D35/00 , F02M7/24 , F02M7/14
CPC分类号： F02D35/0061
摘要： An engine operational condition detector detects a mode among several modes, such as an idling state, a steady state and an accelerating state, where a signal is utilized for selectively actuating one of several integrators, each of which has a predetermined time-constant. One of the integrators, when actuated, integrates an output signal of a P-I controller of a closed loop fuel control system, the integrated signal being stored in a capacitor connected across the integrator. Electromagnetic valves disposed in the openings of main air-bleeds of main and slow circuits of a carburetor are energized in accordance with the output signal of each integrator while other electromagnetic valves disposed in the openings of auxiliary air-bleeds of the same are energized in dependence on the output signal of the P-I controller.
摘要翻译：发动机操作条件检测器检测诸如怠速状态，稳态和加速状态的几种模式中的模式，其中使用信号来选择性地致动多个积分器中的一个，其中每一个具有预定的时间常数。其中一个积分器在被驱动时，集成了闭环燃料控制系统的P-I控制器的输出信号，该积分信号被存储在跨越积分器的电容器中。设置在化油器的主要和慢速回路的主要空气出口的开口中的电磁阀根据每个积分器的输出信号被激励，而其中设置在辅助空气出口的开口中的其他电磁阀依次通电对PI控制器的输出信号。

3. 发明授权

US4168683A Feedback control system for recirculation of exhaust gas 失效
标题翻译：废气再循环反馈控制系统
公开(公告)号：US4168683A
公开(公告)日：1979-09-25
申请号：US852351
申请日：1977-11-17
申请人： Yoshitaka Hata , Kenji Ikeura , Michiyoshi Yamane
发明人： Yoshitaka Hata , Kenji Ikeura , Michiyoshi Yamane
IPC分类号： F02B1/04 , F02D21/08 , F02M25/07 , F02M25/06
CPC分类号： F02D41/144 , F02D41/0072 , F02M26/57 , F02B1/04 , F02D2200/0418 , Y02T10/47
摘要： An exhaust gas recirculation control system for an internal combustion engine, in which a feedback signal representing the amount of actually recirculated exhaust gas is produced by detecting the concentration of either CO.sub.2 or H.sub.2 O, which is contained in the exhaust gas in a nearly constant concentration, in combustible gas mixture diluted with recirculated exhaust gas.
摘要翻译：一种用于内燃机的排气再循环控制系统，其中通过以几乎恒定的浓度检测废气中包含的CO 2或H 2 O的浓度来产生表示实际再循环排气量的反馈信号，在用再循环废气稀释的可燃气体混合物中。

4. 发明授权

US4132200A Emission control apparatus with reduced hangover time to switch from open- to closed-loop control modes 失效
标题翻译：排放控制装置具有从开环到闭环控制模式切换的宿醉时间缩短
公开(公告)号：US4132200A
公开(公告)日：1979-01-02
申请号：US767989
申请日：1977-02-11
申请人： Masaharu Asano , Shigeo Aono , Akio Hosaka , Kokichi Ochiai , Michiyoshi Yamane
发明人： Masaharu Asano , Shigeo Aono , Akio Hosaka , Kokichi Ochiai , Michiyoshi Yamane
IPC分类号： F02D41/14 , F02B75/10
CPC分类号： F02D41/1479 , F02D41/149
摘要： A closed-loop emission control apparatus for internal combustion engines includes exhaust composition sensor for feedback control of the air-fuel mixture. When the temperature in the exhaust passage is lower than the operating temperature of the sensor, control is switched to an open-loop mode. The feedback control signal is fluctuated above and below a predetermined DC bias at periodic intervals during the open-loop mode to switch the control to the closed-loop mode in a minimum transition time as soon as the sensor's temperature condition warrants feedback control.
摘要翻译：用于内燃机的闭环排放控制装置包括用于空气 - 燃料混合物的反馈控制的排气组成传感器。当排气通道中的温度低于传感器的工作温度时，控制切换到开环模式。一旦传感器的温度条件需要反馈控制，反馈控制信号在开环模式期间以周期性间隔在预定的DC偏压之上和之下波动，以在最小转换时间内将控制切换到闭环模式。

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