| 压燃/低温燃烧柴油机进气系统鲁棒滑模控制 |
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| 引用本文： | 李顶根,何春萌.压燃/低温燃烧柴油机进气系统鲁棒滑模控制[J].农业机械学报,2014,45(12):18-24. |
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| 作者姓名： | 李顶根 何春萌 |
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| 作者单位： | 华中科技大学;华中科技大学 |
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| 基金项目： | 内燃机燃烧学国家重点实验室开放课题资助项目(K2010-12)和广东省部产学研结合资助项目(2010A090200010) |
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| 摘 要： | 阐述了一种压燃/低温燃烧(CI/LTC)组合燃烧模式柴油机燃烧进气系统的非线性鲁棒控制策略。基于理想气体方程和质量守恒定律建立了柴油机进气系统的非线性状态空间模型,选择影响燃烧的进气系统关键变量进排气压力和进气组分作为系统输出变量,并采用鲁棒积分滑模方法设计了控制器。控制系统通过对进气系统关键变量的跟踪控制,间接控制缸内条件参数,实现燃烧模式间的平滑切换。最后分别采用GT-Power和Matlab/Simulink软件耦合仿真和快速原型控制仿真验证该控制器的效果。其结果表明与独立PI闭环控制方法相比,该控制策略具有跟踪性能好、响应速度快、抗干扰能力和鲁棒性强等优点。
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| 关 键 词： | 压燃/低温燃烧 缸内条件 鲁棒控制 积分滑模 燃烧模式切换 |
| 收稿时间： | 2013/11/24 0:00:00 |
Robust Slide Mode Control for Intake System of Diesel Engine Operating under Conventional and Low Temperature Combustion Modes |
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| Li Dinggen and He Chunmeng.Robust Slide Mode Control for Intake System of Diesel Engine Operating under Conventional and Low Temperature Combustion Modes[J].Transactions of the Chinese Society of Agricultural Machinery,2014,45(12):18-24. |
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| Authors: | Li Dinggen and He Chunmeng |
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| Institution: | Huazhong University of Science and Technology;Huazhong University of Science and Technology |
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| Abstract: | A robust nonlinear control approach for modern diesel engine operating under low temperature combustion and conventional compressor ignition combustion modes is described. A nonlinear state space model of intake system is established based on the ideal gas equation and the law of mass conversation. The intake pressure, exhaust pressure and composition of inducted flow are chosen as the system outputs, which have key influence on in-cylinder combustion, and the corresponding controller is designed by the method of integral sliding mode. Smooth switching of combustion modes is achieved by tracking the key engine air-path operating variables to control the in-cylinder conditions indirectly. At last, the effects of the controller were evaluated by co-simulations using GT-Power and Matlab/Simulink and rapid control prototype respectively. The result unveiled that compared with the PI algorithm the innovative control algorithm had significant merits such as good tracking performance, fast response, strong anti-interference and robustness and so on. |
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| Keywords: | CI/LTC In-cylinder condition Robust control Integral sliding mode Switching of combustion modes |
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