双压共轨系统电控油压增压器优化设计  

Optimization Design of Electron-Controlled Booster for Dual Pressure Common Rail System

作　　者：张静秋[1] 欧阳光耀[1] 周加东[1] 

机构地区：[1]海军工程大学船舶与动力学院,武汉430033

出　　处：《内燃机工程》2011年第4期83-86,92,共5页Chinese Internal Combustion Engine Engineering

摘　　要：分析了双压共轨系统的结构组成和工作原理。建立了针对该系统的HYDSIM和iSIGHT联合仿真程序。利用iSIGHT的DOE功能研究了电控增压器结构参数对增压效果及控制回油量的灵敏度,结果表明:控制室进出油孔直径对响应影响最大。利用iSIGHT的优化功能,选择了两种算法对双压共轨系统进行了优化计算,结果表明:NCGA法使得增压压力提高了4.1%,控制回油量减少了24.6%;NSGA法使得增压压力提高了2.5%,控制回油量减少了26.8%。试制了增压器样机并进行了试验研究,结果表明:系统能够实现增压,且喷油规律形状可调。The configuration and working principle of dual pressure common rail system（DPCRS） were analyzed,the co-simulation program based on HYDSIM and iSIGHT was established for it.By using experiment design method of iSIGHT,the sensitivity of the electron-controlled booster structure parameters to boosting effect and control spill fuel quantity of DPCRS was studied.Results show that diameters of the control chamber inlet and outlet holes are most sensitive for the responsibility.By using the optimization function of iSIGHT,the optimized calculations for the DPCRS were conducted with the two algorithms selected,NCGA and NSGA.Calculation results exhibit that the system boosting pressure is improved 4.1 % and 2.5 % separately,and the control spill fuel quantity is reduced 24.6 % and 26.8 % separately.Based on the optimization results,the prototype booster was manufactured and tested.Experiment results demonstrate that the objectives of rail pressure boosting and injection rate control are realized successfully.

关 键 词：内燃机 共轨系统 双压 电控增压器 优化 

分 类 号：TK423.8[动力工程及工程热物理—动力机械及工程]