高压共轨柴油机喷油控制的研究  

Study on Fuel Injection Control of High Pressure Common Rail System

作　　者：宋秦中[1] 王勇[2] 

机构地区：[1]苏州市职业大学,江苏苏州215104 [2]大连理工大学内燃机研究所,辽宁大连116023

出　　处：《柴油机设计与制造》2008年第4期7-10,19,共5页Design and Manufacture of Diesel Engine

基　　金：大连市科技计划资助项目(2006A10GX059)

摘　　要：高压共轨系统喷油控制包括喷油压力控制和喷油器电磁阀驱动控制2个方面。喷油压力控制的核心是轨压控制,控制效果和精度取决于控制算法,仿真和实际控制结果都表明PID模糊自适应控制算法控制效果较好。喷油正时和喷油量控制精度与喷油器电磁阀驱动电路的设计有关,设计的驱动模块采用高电压、大电流来对电磁阀的开启加以控制,随后采用低电压、小电流的PWM波维持导通,满足了高压共轨喷油器电磁阀驱动控制的要求。Fuel injection control of high-pressure common-rail systems includes both fuel injection pressure control and driver control of injector solenoid valve. The core of fuel injection pressure control is rail pressure control, and control effect and accuracy depends on con- trol algorithms. Simulation and actual control results show that fuzzy adaptive PID control algorithm has good performance. Control precision of timing and amount of injection depends on the design of driving circuit. Driver module design uses high voltage and large current to control the opening of injector solenoid valve, and uses PWM of low voltage and small current to maintain connection. As a result, it realizes the actuation control of injector solenoid.

关 键 词：喷油压力 PID模糊自适应控制 电磁阀 驱动 

分 类 号：TK423[动力工程及工程热物理—动力机械及工程]