汽油HCCI发动机HCCI/SI模式过渡控制的研究  

Research on HCCI/SI Mode Transition Control of Gasoline HCCI Engine

作　　者：周能辉[1] 谢辉[1] 张岩[1] 陈韬[1] 赵华[1] 

机构地区：[1]天津大学内燃机燃烧学国家重点实验室,天津300072

出　　处：《拖拉机与农用运输车》2007年第6期13-15,共3页Tractor & Farm Transporter

基　　金：国家自然科学基金资助项目(50476064);国家重点基础研究规划资助项目(2001CB209204)

摘　　要：由于HCCI燃烧不能覆盖发动机全部工况,因此一台实用的发动机必须具有HCCI/SI模式过渡的功能。针对目前开发的进排气门升程和相位均独立连续调整的汽油HCCI发动机模式过渡的需要,开发了基于CAN总线分布式的HCCI汽油机控制系统,在此基础上对HCCI/SI模式过渡控制进行详细地研究,本文详细地介绍了其结构及其控制策略。由于该控制系统采用自适应PID策略控制进排气门升程和相位,神经网络预测模式过渡中的发动机进气量。实验结果表明:该控制系统解决了HCCI模式过渡中的进排气门升程、相位和空燃比的控制问题,通过细化气门参数能较好地管理混合放热率型线,满足HCCI/SI模式动态平滑过渡的控制需求。Gasoline HCCI engine must have the function of HCCI/SI mode transition because HCCI combustion can＇ t cover the entire vehicle operating range. Distributed control system based on CAN bus was developed for HCCI/SI mode transition experiments of HCCI/SI dual mode gasoline engine. The engine was equipped with independent regulation of inlet ＆exhaust valve timing and lift. So the complexity of HCCI engine mode transition＇ s control system was reduced because of distributed design. HCCI/SI mode transition Control was studied detailedly by using the control system. This paper introduced the structure and control strategy of control system. Because of adopting self-adaptive PID control strategy for inlet ＆ exhaust valve timing and lift and neural Networks forecasting inlet flow. Experiment results show that：control system solve the control problem of inlet valve timing ＆ lifts,exhaust valve timing ＆ lift and air/fuel ratio in mode transition. It can meet for the need of dynamic, smoothness mode transition by managing hybrid heat release.

关 键 词：均质充量压燃着火(HCCI) 模式过渡 分布式控制系统 神经网络 

分 类 号：TK411.2[动力工程及工程热物理—动力机械及工程]