摘要
为提高高压共轨系统压力控制效果,进行了高压共轨系统的压力控制动态仿真研究。简要分析了高压共轨压力控制的特征和要求;采用部件液压模型和流量边界模型组合法,给出了高压共轨系统压力控制计算模型;并用AMESim液压仿真软件建立了四缸柴油机高压共轨压力控制仿真模型,进行了PID的不同系数控制、控制周期和变目标控制仿真计算,对比了不同系数控制、控制周期和变目标控制的效果。仿真结果表明,该模型能满足共轨压力控制要求,反映不同参数的控制效果。
To improve the controlled effect of common rail pressure of high pressure common rail system, dynamic simulation for common rail pressure control was studied. The demand of common rail pressure control and simulating mechanism for PID control was analyzed briefly, and calculating model of common rail pressure was given with mixing way of hydraulic pressure model and flux boundary, and by AMESim hydraulic simulation software, dynamic simulation module for common rail pressure control was constructed, the control effect of control parameter, control duration and variable goal were compared respectively. Its result shows that the model can meet controlled demand of common rail pressure and reflect controlled effect of different parameter.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2009年第9期2492-2495,共4页
Journal of System Simulation
基金
北京市科委重点研究项目(XJZZ0603)
关键词
仿真
共轨压力
PID控制
柴油机
simulation
common rail pressure
PID control
Diesel engine
