Vehicle High Speed Stability Analysis throughIntegrated Control

2018 IEEE Conference on Systems, Process and Control (ICSPC) Pub Date : 2018-12-01 DOI:10.1109/SPC.2018.8703976

Nur Alyani Nadhiya, F. Yakub, Hatta Ariff, A. Azizan, Zainuddin A. Rasit, Sheikh Ahmad Zaki, Abdul Yasser Abd Fattah, Y. Mori

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Abstract

This paper extends the analysis of Yakub et. al [1], by suggesting an integrated control which includes an active aerodynamic control and differential braking control to enhance high speed vehicle dynamics stability. Two aerodynamic surfaces are attached to the roof of the vehicle and servo controlled separately in real time. A hierarchical control structure which is composed of an upper and a lower controller. In the upper controller, the additional yaw moment required for stability control is determined by sliding mode control with the consideration of driver inputs, vehicle dynamic and the limitation of road adhesion. In the lower controller, a control strategy is designed to coordinate differential brake and active aerodynamic control, and an optimal control allocation algorithm is adopted to distribute the brake pressure of each wheel. Two double lane change tests on dry and wet road performed to study the effectiveness of the control algorithm in Simulink simulation. The results show, the proposed control strategy can effectively improve the vehicle dynamics stability and tire workload usage.

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基于综合控制的车辆高速稳定性分析

本文扩展了Yakub等人[1]的分析，提出了一种包括主动气动控制和差动制动控制在内的综合控制，以提高高速车辆的动力学稳定性。两个气动表面附着在车顶上，分别进行实时伺服控制。一种由上控制器和下控制器组成的分层控制结构。在上控制器中，稳定控制所需的额外偏航力矩由滑模控制确定，同时考虑驾驶员输入、车辆动态和道路附着力限制。下控制器设计了差动制动与主动气动控制相协调的控制策略，并采用最优控制分配算法对各车轮制动压力进行分配。在干、湿路面上进行了双变道试验，在Simulink仿真中研究了控制算法的有效性。结果表明，所提出的控制策略能有效提高车辆的动力学稳定性和轮胎负载利用率。

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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2018 IEEE Conference on Systems, Process and Control (ICSPC)

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