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1. 发明授权

US5482020A Control system for internal combustion engines 失效
标题翻译：内燃机控制系统
公开(公告)号：US5482020A
公开(公告)日：1996-01-09
申请号：US322086
申请日：1994-10-12
申请人： Daisuke Shimizu , Kotaro Miyashita , Yoshihisa Hara , Yamamoto Yoshio
发明人： Daisuke Shimizu , Kotaro Miyashita , Yoshihisa Hara , Yamamoto Yoshio
IPC分类号： F02P5/15 , F02D13/02 , F02D41/00 , F02D41/02 , F02M25/07 , F02D41/04
CPC分类号： F02D41/0072 , F02P5/1516 , F02B2275/18 , Y02T10/46 , Y02T10/47
摘要： A control system for an internal combustion engine includes an exhaust gas recirculation passage extending between the intake system and the exhaust system, for recirculating part of exhaust gases emitted from the engine, an EGR valve for controlling a flow rate of exhaust gases to be recirculated through the exhaust gas recirculation passage, and an ECU which detects an operating condition of the EGR valve, and calculates an amount of fuel to be injected, based on operating conditions of the engine. Further, the ECU calculates dynamic characteristics of the exhaust gases to be recirculated, based on operating conditions of the engine, a virtual operation amount of the EGR valve, based on the dynamic characteristics, a recirculation rate of exhaust gases, based on the virtual operation amount as well as operating conditions of the engine, and a recirculation rate of inert gases present in exhaust gases to be recirculated, based on the exhaust gas recirculation rate as well as the concentration of oxygen present in the exhaust gases, and corrects the amount of the fuel to be injected, based on the inert gas recirculation rate.
摘要翻译：用于内燃机的控制系统包括在进气系统和排气系统之间延伸的废气再循环通道，用于使从发动机排出的废气的一部分再循环; EGR阀，用于控制废气的再循环流量废气再循环通道和ECU，其检测EGR阀的运行状态，并根据发动机的运转条件计算出喷射的燃料量。此外，基于动态特性，基于虚拟动作的排气的再循环率，ECU基于发动机的运转条件，EGR阀的虚拟运转量，计算要再循环的废气的动态特性基于废气再循环速率以及存在于废气中的氧浓度，存在于要再循环的废气中的惰性气体的再循环速率以及存在于排气中的氧气的浓度，基于惰性气体再循环速率喷射的燃料。

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