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  

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

作　　者：严正峰 蒋光宗 姚明尧 YAN Zhengfeng;JIANG Guangzong;YAO Mingyao(School of Automotive and Transportation Engineering,Hefei University of Technology,Hefei,230009)

机构地区：[1]合肥工业大学汽车与交通工程学院,合肥230009

出　　处：《中国机械工程》2024年第2期354-363,共10页China Mechanical Engineering

基　　金：国家自然科学基金(52102423)。

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。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.

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 

分 类 号：U462.3[机械工程—车辆工程]