Mode Transition and Gear Shifting Control Strategy for Parallel Hybrid Commercial Vehicles Based on Optimal Drive System Efficiency

doi:10.3969/j.issn.1004-132X.2024.02.020

China Mechanical Engineering ›› 2024, Vol. 35 ›› Issue (02): 354-363.DOI: 10.3969/j.issn.1004-132X.2024.02.020

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Mode Transition and Gear Shifting Control Strategy for Parallel Hybrid Commercial Vehicles Based on Optimal Drive System Efficiency

YAN Zhengfeng;JIANG Guangzong;YAO Mingyao

School of Automotive and Transportation Engineering,Hefei University of Technology,Hefei,230009

Online:2024-02-25 Published:2024-04-12

驱动系统效率最优的并联混合动力商用车模式切换及换挡控制策略

严正峰;蒋光宗;姚明尧

合肥工业大学汽车与交通工程学院，合肥，230009

通讯作者: 姚明尧（通信作者），男，1989年生，讲师、硕士研究生导师。研究方向为新能源汽车节能技术。发表论文20余篇。E-mail:yaomingyao@126.com。
作者简介:严正峰，男，1969年生，教授、博士研究生导师。研究方向新能源汽车传动系统、汽车零部件设计与制造和先进制造技术。发表论文50余篇。E-mail:Zf.yan@hfut.edu.cn。
基金资助:
国家自然科学基金（52102423）

Abstract

Abstract: To enhance the fuel economy of parallel hybrid commercial vehicles equipped with automatic transmissions and optimize the efficiency of the drive system, a new method for dividing driving mode boundaries and gear boundaries was proposed. A control strategy for mode switching and gear shifting was developed based on optimal efficiency and simulated under the driving conditions of Chinese heavy commercial vehicles. The results demonstrate that the proposed strategy maintains the balance of the battery state of charge, and achieves a 11.2% reduction in fuel consumption per 100 kilometers compared to the electric assist control strategy, which improves the fuel economy.

Key words: energy management strategy, boundary division method, model transition, gear shifting law, hybrid commercial vehicle

摘要： 为提高搭载自动变速器的并联混合动力商用车燃油经济性，以驱动系统效率最优为目标，提出一种新的驱动模式边界划分和挡位边界划分方法。制定了基于效率最优的模式切换及换挡控制策略，并在中国重型商用车行驶工况下对所制定的控制策略进行了仿真验证。结果表明，所提出的策略不仅能够维持电池荷电状态的平衡，且百公里油耗比电辅助控制策略低11.2%，具有更好的燃油经济性。

关键词: 能量管理策略, 边界划分方法, 模式切换, 换挡规律, 混合动力商用车

CLC Number:

U462.3

YAN Zhengfeng, JIANG Guangzong, YAO Mingyao. Mode Transition and Gear Shifting Control Strategy for Parallel Hybrid Commercial Vehicles Based on Optimal Drive System Efficiency[J]. China Mechanical Engineering, 2024, 35(02): 354-363.

严正峰, 蒋光宗, 姚明尧. 驱动系统效率最优的并联混合动力商用车模式切换及换挡控制策略[J]. 中国机械工程, 2024, 35(02): 354-363.

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Mode Transition and Gear Shifting Control Strategy for Parallel Hybrid Commercial Vehicles Based on Optimal Drive System Efficiency

驱动系统效率最优的并联混合动力商用车模式切换及换挡控制策略

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