缸内直喷汽油机起动控制  

Gasoline direct injection engine start control

作　　者：于秀敏[1] 谭兴闻[1] 马君[1] 李国良[1] 董伟[1] 齐万强[1] 崔峰云[1] 

机构地区：[1]吉林大学汽车仿真与控制国家重点实验室,长春130022

出　　处：《吉林大学学报（工学版）》2011年第6期1554-1558,共5页Journal of Jilin University:Engineering and Technology Edition

基　　金：'863'国家高技术研究发展计划项目(2006AA110107)

摘　　要：在缸内直喷增压汽油机上,运用自主开发的直喷发动机控制软硬件系统,研究了喷油脉宽、点火提前角和起动过程PID控制器参数对发动机起动的影响。试验结果表明:喷油脉宽为45℃A,发动机起动转速波动小。点火提前角为12℃A时,发动机起动转矩最大。PID控制的KP=1时,转速响应迅速;KI=0.2时,实现无误差跟踪转速,超调量小;KD=1时,调节时间短,转速迅速稳定。The effects of the fuel injection pulse width,the ignition advance angle and the parameters of engine start PID controller on the engine starting behavior was researched on a turbocharged gasoline direct injection engine with the self-developed software and hardware of the engine control system.The test results showed that the fluctuation of the engine starting speed is small when the fuel injection pulse width is 45 ℃A.The engine starting torque is the maximum for the ignition advance angle 12 ℃A.The optimal parameters of the PID control system are as follows： the speed responses quickly at KP=1;the error-free speed tracking and the small overshoot are reached at KI=0.2;and the control time is short and the speed becomes steady quickly at KD=1.

关 键 词：动力机械及工程 缸内直喷汽油机 点火正时 喷油脉宽 起动过程PID控制器 

分 类 号：TK417[动力工程及工程热物理—动力机械及工程]