Research on coordinated control strategy for braking energy recovery of pure electric vehicles based on ESC

IF 3.5 3区工程技术 Q3 ENERGY & FUELS

Energy Science & Engineering Pub Date : 2024-07-24 DOI:10.1002/ese3.1777

Min Li, Xinbo Niu, Yu Cheng

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引用次数: 0

Abstract

Taking a rear-wheel drive pure electric vehicle as the research object, considering the safety during braking and improving energy recovery rate, a study was conducted on the distribution strategy of front and rear axle braking force. During the braking process, the feedback braking force of the motor and the hydraulic braking force with an electronic stability controller (ESC) were coordinated and controlled, to ensure that the total required braking force was met. A fuzzy logic controller has been designed, with three variables of battery state of charge, vehicle speed, and braking intensity as inputs, and a modified motor braking ratio as output variable to prevent wheel lockup. Using Cruise software, a co-simulation model was established with Amesim and Simulink, and simulation validation was conducted on the braking process and cycling conditions. The simulation results showed that the brake recovery strategy based on fuzzy control can effectively improve the vehicle's control performance and energy recovery rate compared to the Economic Commission of Europe regulation. The NEDC (New European Driving Cycle) working condition improved by 10.41% and the CLTC-P (China Light-duty Vehicle Test Cycle-passenger) working condition improved by 10.57%. Effectively improving power consumption per 100 km, NEDC decreased by 1.81% and CLTC-P decreased by 2.62%.

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基于 ESC 的纯电动汽车制动能量回收协调控制策略研究

以后轮驱动纯电动汽车为研究对象，考虑到制动时的安全性和提高能量回收率，对前后轴制动力的分配策略进行了研究。在制动过程中，电机的反馈制动力和带有电子稳定控制器（ESC）的液压制动力被协调控制，以确保满足所需的总制动力。设计了一个模糊逻辑控制器，将电池充电状态、车速和制动强度三个变量作为输入变量，将修改后的电机制动比作为输出变量，以防止车轮抱死。利用 Cruise 软件，建立了 Amesim 和 Simulink 的协同仿真模型，并对制动过程和循环条件进行了仿真验证。仿真结果表明，与欧洲经济委员会的规定相比，基于模糊控制的制动回收策略能有效提高车辆的控制性能和能量回收率。NEDC（新欧洲行驶循环）工况改善了 10.41%，CLTC-P（中国轻型汽车测试循环-乘用车）工况改善了 10.57%。有效改善了百公里耗电量，NEDC 降低了 1.81%，CLTC-P 降低了 2.62%。

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来源期刊

Energy Science & Engineering Engineering-Safety, Risk, Reliability and Quality

CiteScore

6.80

自引率

7.90%

发文量

298

审稿时长

11 weeks

期刊介绍： Energy Science & Engineering is a peer reviewed, open access journal dedicated to fundamental and applied research on energy and supply and use. Published as a co-operative venture of Wiley and SCI (Society of Chemical Industry), the journal offers authors a fast route to publication and the ability to share their research with the widest possible audience of scientists, professionals and other interested people across the globe. Securing an affordable and low carbon energy supply is a critical challenge of the 21st century and the solutions will require collaboration between scientists and engineers worldwide. This new journal aims to facilitate collaboration and spark innovation in energy research and development. Due to the importance of this topic to society and economic development the journal will give priority to quality research papers that are accessible to a broad readership and discuss sustainable, state-of-the art approaches to shaping the future of energy. This multidisciplinary journal will appeal to all researchers and professionals working in any area of energy in academia, industry or government, including scientists, engineers, consultants, policy-makers, government officials, economists and corporate organisations.