A new spacing policy in a platoon using extremum-seeking controller on an anti-lock braking system

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-07-27 DOI:10.1177/01423312241266680

Nandhini M, Mohamed Rabik M

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Abstract

Enhancing road capacity, safety, and energy efficiency is a potential outcome of vehicle platooning. Since platooning involves driving close to each other, it is essential to have minimal stopping distance (SD) during emergency braking. However, the anti-lock braking system (ABS) in a vehicle and unknown road type would further increase the SD. For this, a novel spacing policy using extremum-seeking control (ESC) estimated ABS has been proposed in this paper. An optimal slip ratio of that particular road type can be tracked and found using ESC estimation to maintain the maximum friction in ABS for all road conditions to have a minimal SD. The primary objective is to minimize the inter-gap distance while incorporating the ABS features. The simulation and experimentation of ABS for the set of non-linear vehicles on different road conditions have been carried out and numerical results have been compared with conventional ABS systems. The results show that the ABS with ESC estimation reduces the SD by seeking the optimal slip ratio and a new spacing policy for the platoon has been expressed using regression analysis. The entire simulated scenario has been implemented in hardware to validate the proposed model as a quarter-car model.

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在防抱死制动系统中使用极值搜索控制器的新排距策略

提高道路通行能力、安全性和能源效率是车辆编队的潜在成果。由于车辆排成一排时需要相互靠近行驶，因此在紧急制动时必须保持最小的停车距离（SD）。然而，车辆的防抱死制动系统（ABS）和未知的道路类型会进一步增加停车距离。为此，本文提出了一种利用极值搜索控制（ESC）估计防抱死制动系统的新型间隔策略。通过 ESC 估算，可以跟踪并找到特定路型的最佳滑移率，从而在所有路况下保持 ABS 的最大摩擦力，使 SD 最小。主要目标是在结合防抱死制动系统功能的同时，最大限度地减少间隙距离。针对一组非线性车辆在不同路况下的防抱死制动系统进行了模拟和实验，并将数值结果与传统的防抱死制动系统进行了比较。结果表明，带有 ESC 估计功能的防抱死制动系统可通过寻求最佳滑移率来降低 SD，并利用回归分析表达了新的排距策略。整个模拟场景已在硬件中实现，以验证所提出的四分之一车模型。

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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.