Model Control and Transition of Residual-Affected HCCI Engines by electro-hydraulic Valve Actuation System
Since the homogeneous charge compression ignihon (HCCI or CAI) was put forward, different manners were adopted to realize HCCI combustion with gasoline and ethanol. However, each combustion mode could only work in a narrow operation region.In order to put the HCCI modes into practice the researchers suggested that the engine operated in more different HCCI modes and operated in conventional combustion mode (SI. CI) in others operation conditions, which was called hybrid combustion mode engine. In this paper, HCCI combustion was achieved in a modified single cylinder mass production engine through preheating the intake charge and trapping residual gases. Three modes of trapping residual gases were realized by a newly developed full variable valve timing system controlled by electronic system. The transition smoothness was improved by applying the strategy in which the fuelling consumption was compensated. Due to the cycle-synchronous control of valve timings, injection and ignihon offered by the control system, transitions between the HCCI modes and SI operating mode can be realized without misfire or negative torque response. In order to control the HCCI combustion modes, the internal EGR strategies were studied by GT-POWER coupled with CHEMKIN.
Index Terms-combustion mode transition homogeneous charge compression ignition (HCCI) spark ignition(SI) fsat thermal management system (FTMS) EGR (key words)
Gao Fengjun Guo Yingnan Liu Fafa Pan Xixi Wang Kaiyou Ji Honggang
State Key Laboratory of Automobile Dynamic Simulation, Jilin University, Changchun, 130022, China
国际会议
The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)
沈阳
英文
503-508
2010-03-27（万方平台首次上网日期，不代表论文的发表时间）