电子节气门系统连续滑模控制研究

发布时间：2022-02-14 15:44

　　随着人口的快速增长和能源的急剧消耗,节能环保变得越来越重要。在此背景下,人们对汽车发动机系统在燃料效率和低排放方面的性能有了更高的要求。电子节气门（Electronic throttle,ET）系统在实现这一目标中发挥着重要作用。它通过控制进入系统发动机的空气流量来控制空气-燃料混合比,能有效减少环境污染和优化燃料消耗。电子节气门系统由节流阀本体、传感器、齿轮组和控制节气门阀板开度的直流电机等部件组成。电子节气门系统是一个耦合非线性系统,其模型近似于一个真实系统,它的未建模动态问题常常被忽视。传统的线性控制方法很难满足电子节流阀系统的控制需求,因此本文为提高电子节气门系统的闭环性能,提出了一种高阶滑模控制方案。本文的贡献主要体现在以下几个方面:本文考虑了ET系统的控制问题,并提出了一种高阶滑模控制方案。ET系统是一个非线性系统,其模型是实际系统的近似值,所以存在未建模动态。因此,ET系统的一般性能通常受非线性,未建模动态,外部干扰参数变化的影响。下面将分别阐述本文重点。首先,本文利用高阶滑模控制方法来改善ET系统的闭环性能。高阶滑模控制不仅保留了传统滑模控制的主要优点,而且可以用来减少... 

【文章来源】：东南大学江苏省211工程院校985工程院校教育部直属院校

【文章页数】：85 页

【学位级别】：硕士

【文章目录】：
摘要
Abstract
1 INTRODUCTION
    1.1 Introduction
    1.2 Background
    1.3 Thesis contributions
    1.4 Thesis structure
2 ELECTRONIC THROTTLE SYSTEM
    2.1 Introduction
    2.2 Electronic throttle system model
        2.2.1 Mechanical and Electronic Throttle
        2.2.2 Passive and active electronic throttle system
    2.3 Principle of operation of the electronic throttle system
        2.3.1 Model description of the electronic throttle system
        2.3.2 Principle of operation
    2.4 Mathematical model
        2.4.1 Standard DC Motor Model
        2.4.2 Throttle Dynamic Model
        2.4.3 Model uncertainty analysis
    2.5 Summary
3 SLIDING MODE CONTROL
    3.1 Introduction
    3.2 Sliding mode control concept
        3.2.1 Sliding surface design
        3.2.2 Control law design
        3.2.3 Reachability condition
        3.2.4 Finite time convergence
    3.3 Sliding mode control for ET system
        3.3.1 Control law design for the ET system
        3.3.2 Simulation results
        3.3.3 Chattering
    3.4 Experimental Verification
        3.4.1 Experimental setup
        3.4.2 Experimental results
    3.5 Summary
4 HIGHER-ORDER SLIDING MODE CONTROL
    4.1 Introduction
    4.2 Higher-order sliding mode control concept
    4.3 Filippov’s solution to differential equations with discontinuous right hand sides
    4.4 Sliding motion and sliding set
    4.5 Novel full-order sliding mode control
        4.5.1 Full-order sliding mode control design concept
        4.5.2 Full-order terminal sliding mode control design concept
        4.5.3 Full-order terminal sliding mode control design for ET system
    4.6 Simulations results
    4.7 Summary
5 OBSERVER BASED CONTINUOUS SLIDING MODE CONTROL
    5.1 Introduction
    5.2 Observer-based control concept
    5.3 UFTO design concept
    5.4 UFTO based continuous terminal sliding mode control design for ET system
        5.4.1 Universal finite-time observer
        5.4.2 Controller Design
    5.5 Simulations and Experiments
        5.5.1 Numerical simulations
        5.5.2 Experimental verification
    5.6 Summary
6 CONCLUSIONS AND FUTURE RESEARCH DIRECTIONS
    6.1 Introduction
    6.2 Conclusions
    6.3 Future Research Directions
7 ACKNOWLEDGEMENT
References
作者在攻读硕士学位期间发表的论文与获奖情况


【参考文献】：
期刊论文
[1]Adaptive Sliding-Mode Control of an Automotive Electronic Throttle in the Presence of Input Saturation Constraint[J]. Rui Bai.  IEEE/CAA Journal of Automatica Sinica. 2018(04)



本文编号：3624836