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1. 发明授权

US3685526A Fuel control system for internal combustion engines 失效
标题翻译：内燃机燃油控制系统
公开(公告)号：US3685526A
公开(公告)日：1972-08-22
申请号：US3685526D
申请日：1970-05-14
申请人： NIPPON DENSO CO , TOYOTA MOTOR CO LTD
发明人： HOBO NOBUHITO , NATSUME YOSHIMI , KAGA SUMIHIRO
IPC分类号： F02D41/40 , F02B1/04 , F02D41/36 , F02D41/38 , F02M51/00
CPC分类号： F02D41/365 , F02B1/04
摘要： A fuel control system for internal combustion engines comprising a control voltage generation circuit for generating a control voltage representative of the operating conditions of an engine, a capacitor-resistor coupled type monostable timer circuit composed of two transistors and having the time constant fixed at a certain value, said control voltage being applied through the resistor to the collector of that one of said transistors which is in the cut-off state when said timer circuit is in its stable state, a current amplifier circuit adapted to amplify for current amplification the output timing pulse from said monostable timer circuit to operate an electromagnetic metering valve, and a trigger signal generating circuit for producing a trigger signal at the fuel metering time of the engine to trigger said monostable timer circuit.
摘要翻译：一种用于内燃机的燃料控制系统，包括用于产生表示发动机的运行状况的控制电压的控制电压产生电路，由两个晶体管组成的电容电阻耦合型单稳态计时器电路，其时间常数固定在一定值所述控制电压通过所述电阻器施加到所述定时器电路处于其稳定状态时处于截止状态的所述晶体管中的所述晶体管的集电极，电流放大器电路适于放大当前放大的输出定时来自所述单稳态定时器电路的脉冲以操作电磁计量阀;以及触发信号发生电路，用于在发动机的燃料计量期间产生触发信号以触发所述单稳定时器电路。

2. 发明专利

DE3935937A1 Piezoelectric fuel injector control for Diesel engine - provides separate HV DC generator units and storage capacitors with microprocessor control, for pre. and main injections 未知
公开(公告)号：DE3935937A1
公开(公告)日：1990-05-03
申请号：DE3935937
申请日：1989-10-27
申请人： TOYOTA MOTOR CO LTD
发明人： KOZAWA KIYOMITSU , NAKAMORI YASUTAKA , YAMADA YASUFUMI , NATSUME YOSHIMI , TSUZUKI NAOYUKU
IPC分类号： F02B3/06 , F02D41/20 , F02D41/40 , F02M45/04 , F02M51/06 , F02M63/00 , F16K31/02
摘要： Injectors for individual cylinders are driven by piezo-electric elements under the control of a microprocessor in which timers of pre-injection and main injection routines operate in conjunction with a program memory and write/read memory for time-varying data. An input/output interface receives signals from two crankshaft position detectors and supplies commands to a thyristor ignition circuit. Analogue signals from inlet manifold pressure and coolant temp. sensors and a throttle opening sensor are digitised for processing by the CPU. Anomalous operation of the control circuit and other elements is indicated by warning lamps. ADVANTAGE - Main injection and preinjection conditions are stabilised without interaction even when interval between them is shortened. Stalling is averted in anomalous conditions of power supply.

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