Extended state observer design for uncertainty estimation in electronic throttle valve system

Q2 Engineering

International Review of Applied Sciences and Engineering Pub Date : 2023-10-10 DOI:10.1556/1848.2023.00662

Noor S. Mahmood, Amjad J. Humaidi, Raaed S. Al-Azzawi, Ammar Al-Jodah

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引用次数: 0

Abstract

Abstract The Electronic Throttle Valve (ETV) is the core part of automotive engines which are recently used in control-by-wire cars. The estimation of its states and uncertainty is instructive for control applications. This study presents the design of Extended State Observer (ESO) for estimating the states and uncertainties of Electronic Throttle Valve (ETV). Two versions of ESOs have been proposed for estimation: Linear ESO (LESO) and Nonlinear ESO (NESO). The model of ETV is firstly developed and extended in state variable form such that the extended state stands for the uncertainty in system parameters. The design of both structures of ESOs are developed and a comparison study has been conducted to show the effectiveness of the proposed observers. Numerical simulation has been conducted to assess the performance of observers in estimating the states and uncertainties of ETV. The simulated results showed that both full order and reduced order models of ETV have the same transient characteristics. Moreover, the effectiveness of two versions of observers has been examined based on Root Mean Square of Error (RMSE) indicator. The results showed that the NESO has less estimation errors for both states and uncertainties than LESO.

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电子节流阀系统不确定性估计的扩展状态观测器设计

电子节流阀(ETV)是汽车发动机的核心部件，近年来在线控汽车中得到广泛应用。其状态和不确定性的估计对控制应用具有指导意义。提出了一种用于估计电子节流阀(ETV)状态和不确定性的扩展状态观测器(ESO)设计。有两种版本的ESO被提出用于估计:线性ESO (LESO)和非线性ESO (NESO)。首先对ETV模型进行了状态变量形式的扩展，扩展后的状态表示系统参数的不确定性。设计了两种结构的ESOs，并进行了比较研究，以证明所提出的观测器的有效性。通过数值模拟来评估观测器在估计ETV状态和不确定性方面的性能。仿真结果表明，全阶模型和降阶模型具有相同的瞬态特性。此外，基于均方根误差(RMSE)指标，对两种版本的观察者的有效性进行了检验。结果表明，NESO对状态和不确定性的估计误差都小于LESO。

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来源期刊

International Review of Applied Sciences and Engineering Materials Science-Materials Science (miscellaneous)

CiteScore

2.30

自引率

0.00%

发文量

审稿时长

46 weeks

期刊介绍： International Review of Applied Sciences and Engineering is a peer reviewed journal. It offers a comprehensive range of articles on all aspects of engineering and applied sciences. It provides an international and interdisciplinary platform for the exchange of ideas between engineers, researchers and scholars within the academy and industry. It covers a wide range of application areas including architecture, building services and energetics, civil engineering, electrical engineering and mechatronics, environmental engineering, mechanical engineering, material sciences, applied informatics and management sciences. The aim of the Journal is to provide a location for reporting original research results having international focus with multidisciplinary content. The published papers provide solely new basic information for designers, scholars and developers working in the mentioned fields. The papers reflect the broad categories of interest in: optimisation, simulation, modelling, control techniques, monitoring, and development of new analysis methods, equipment and system conception.