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汽车安全与节能学报

汽车安全与节能学报 ›› 2012, Vol. 3 ›› Issue (4): 381-389.DOI: 10.3969/j.issn.1674-8484.2012.04.012

• 汽车节能与环保 • 上一篇    下一篇

基于模型预测控制的废气循环HCCI发动机的多变量控制

李顶根，王 迪   

  1. 华中科技大学 能源与动力工程学院，武汉 430074，中国
  • 收稿日期:2012-10-07 出版日期:2012-12-25 发布日期:2013-01-05
  • 作者简介:李顶根（1977—），男（汉），安徽，副教授。E-mail ：lidinggen@sina.com
  • 基金资助:

    内燃机燃烧学国家重点实验室开放课题资助项目（K2010-12）；广东省部产学研结合项目（2010A090200010）

Multivariable control of residual-affected  HCCI engines based on model predictive control

LI Dinggen, WANG Di   

  1. Energy and Power Engineering Institute, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2012-10-07 Online:2012-12-25 Published:2013-01-05

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摘要： 为了协调控制均质压燃（HCCI）发动机的峰值压力及燃烧相位，建立了压力—燃烧相位的两
输入两输出的物理模型。基于Shaver 提出的废气循环HCCI 发动机物理模型，该模型加入了适用于
HCCI 燃烧模式的定壁温传热模型。采用模型预测控制（MPC) 理论，设计了压力及燃烧相位的协同控
制器。以可变气门正时（VVT）为控制手段，进行了GT-Power 与Matlab/Simulink 联合仿真实验。结
果表明：该控制模型能够满足发动机的需求，实现了压力—燃烧相位的协同控制，控制准确度分别为
±30 kPa 和±0.6°，响应时间约6~7 个发动机循环。

关键词: 汽车发动机, 均质压燃（HCCI), 可变气门正时（VVT）, 物理建模, 模型预测控制（MPC) ,
联合仿真

Abstract: A two-input and two-output physical model for pressures and combustion phases was built to realize
the coordinated control of the peak pressures and combustion phases for a homogeneous charge compression
ignition (HCCI) engine. This model is based on the Shaver' residual-affected HCCI engine model with the
constant wall temperature heat transfer model suitable for HCCI combustion. A cooperative control system of
pressure and combustion phase was designed using the model predictive control (MPC) theory with the variable
valve timing (VVT) as the control method. The coordinated simulation experiment was done by using GT-Power
and Matlab/Simulink. The results show that the control model satisfies the engine control demand, realizes the
collaborative control of the pressure and combustion phase with control accuracies of ±30 kPa and ±0.6° CA，
and the response time of 6-7 engine cycles.

Key words: vehicle engines, homogeneous charge compression ignition (HCCI), variable valve timing (VVT),
physical modeling, model predictive control (MPC), coordinated simulation

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