基于快速热管理系统的乙醇SI-HCCI-SI模式转换控制策略研究  

Study on Control Strategy of Ethanol SI-HCCI-SI Mode Transition Based on Fast Thermal Management System

作　　者：黄为钧[1] 刘发发[1] 彭亚平[1] 李宇[1] 郭英男[1] 

机构地区：[1]吉林大学汽车工程学院,吉林长春130022

出　　处：《内燃机学报》2008年第4期353-358,共6页Transactions of Csice

基　　金：国家重点基础研究发展规划项目(2001CB209206)

摘　　要：在一台经过改进的单缸发动机试验系统上基于快速热管理系统进行了乙醇燃料SI/HCCI燃烧模式转换的试验研究。研究结果表明,基于快速热管理系统能够实现乙醇燃料的SI/HCCI燃烧模式转换,在不同的工况下存在一个最佳点火提前角使转换过程最为平稳。在模式转换过程中为了使转换更平稳,采用了点火提前角、节气门和供油量协同控制的控制策略,这一策略能够有效地减少过渡过程的循环数,降低甚至消除转换过程中转速和平均有效压力pe的波动,实现平顺的模式转换。In this study, mode transition between ethanol homogeneous charge compression ignition and spark ignition was investigated in a modified single cylinder test engine based on a self-developed fast thermal management system. The results show that combustion mode transition can be realized with fast thermal management system, and there exists the best ignition advance angle to get the smooth mode transition under different conditions. In order to realize the smoother transition, the jointly controlling strategy of advancing ignition angle, throttle and and the mean effective pressure can fueling rate was adopted. The transition period, the speed fluctuation be reduced with this control strategy.

关 键 词：乙醇 均质压燃 燃烧模式转换 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程]