【作者】 王彬彬；

【导师】 赵亮；

【作者基本信息】 浙江大学 ， 机械设计及理论， 2012， 硕士

【摘要】 本课题以汽车发动机散热器性能试验中关键参数水温和风速为研究对象,分析了国内外汽车散热器散热性能试验的研究现状和发展趋势,提出了一种基于李雅普诺夫(Lyapunov)方法的模型参考自适应控制(MRAC)和PID控制相结合的复合控制方法(MRAC-PID),论文主要内容包括：1、对国内外各种试验方案进行了对比分析,同时考虑到现代检测技术及其实际可操控性,建立了测控对象的研究模型,确立试验方案；2、以整体试验方案为对象,分析了传统PID控制、自适应控制等控制方法的优劣性和适用性,同时考虑到系统的鲁棒性,提出了一种基于李雅普诺夫(Lyapunov)方法的模型参考自适应控制(MRAC)和PID控制相结合的复合控制方法(MRAC-PID),确立方法模型；3、通过模拟仿真和反复试验研究,得到了理论控制效果和实验测控数据,分析结果显示,本方法具有参数测控高速高精度的特点,同时保证了系统的鲁棒性,得到了比较理想的测控效果。根据研究结果,开发了一套汽车发动机散热器散热性能的检测控制系统,与之前的检测控制系统相比,本系统可以更加有效地检测并控制相关性能参数,具有一定的借鉴意义。更多还原

【Abstract】 The topic studies the measurement and control of water temperature and wind speed in car engine radiator performance test, analyzes the status quo and development trend of domestic and foreign automobile radiator performance test. Consequently, propose a complex control (MRAC-PID) method based on model and adaptive control (MRAC) and PID control. The thesis main includes:1. After analyzing a variety of domestic and international testing program, modern detection technology and its drive ability, establish a monitoring and control of the object model and experimental program;2. Analyze the superiority or inferiority and applicability of traditional PID control, adaptive control and other control methods based on the overall test program as well as taking into account the robustness of the system. Finally, propose a complex control (MRAC-PID) method based on model and adaptive control (MRAC) and PID control and establish a model of method further;3. By simulation studies and repetition tests, the effect of control strategy and experimental control data are obtained. The results suggest that this method has high precision characteristics while ensuring the robustness, which means getting an ideal experimental means in control theorem study.According to the results, develop a testing control system of car engine radiator cooling performance measurement. And compared to the previous testing control system, this system can be more effective to detection and control the relevant performance parameters with some reference.更多还原