Optimal Control of an Active Suspension System Applying Distributed Parameter Simulation Test

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-06-30 DOI:10.15282/ijame.20.2.2023.03.0801

Jessica Gissella Maradey Lázaro, Helio Sneyder Esteban Villegas, Andres Felipe Aldana Afanador, Kevin Sebastián Cáceres Mojica

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Abstract

Automotive is one of the most important industries in the world, which lead to a need for continuous improvement of vehicles and their internal systems. Suspension systems have been improved for better vehicle performance and passenger comfort, keeping the tire in contact with the road surface. Active suspensions require optimal control to modulate the flow of energy and generate the control force by implementing active actuators able to provide negative damping and a wider range of forces and velocities. This article aims the design of an active suspension system based on LQG and LQR controller evaluating its performance in a distributed parameters simulation using COMSOL Multiphysics® and MATLAB®. The quarter car model is proposed and is linearized to design the optimal control (LQG and LQR) respectively. An early mathematical simulation is developed in MATLAB (R) software to verify and compare the open and closed loop results. Finally, the full system model is implemented in COMSOL Multiphysics (R) software considering rigid materials and the controller to analyze the distributed parameters simulation results.

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基于分布式参数仿真试验的主动悬架系统最优控制

汽车是世界上最重要的工业之一，这导致了对车辆及其内部系统的不断改进的需求。悬挂系统得到了改进，以提高车辆性能和乘客舒适度，使轮胎与路面保持接触。主动悬架需要最优控制来调节能量流，并通过实施能够提供负阻尼和更大范围的力和速度的主动执行器来产生控制力。本文旨在设计一种基于LQG和LQR控制器的主动悬架系统，并利用COMSOL Multiphysics®和MATLAB®进行分布式参数仿真，评估其性能。提出了四分之一小车模型，并对其进行线性化，分别设计了最优控制(LQG和LQR)。在MATLAB (R)软件中开发了一个早期的数学仿真，以验证和比较开闭环结果。最后，在COMSOL Multiphysics (R)软件中实现了考虑刚性材料和控制器的全系统模型，对分布参数仿真结果进行了分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.