一种单行星排功率分流式混合动力系统构型优化设计方案

doi:10.3901/JME.2021.18.264

机械工程学报 ›› 2021, Vol. 57 ›› Issue (18): 264-276.doi: 10.3901/JME.2021.18.264

• 运载工程 • 上一篇

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一种单行星排功率分流式混合动力系统构型优化设计方案

胡建军^1,2, 刘子睿², 梅博², 彭航²

1. 重庆大学机械传动国家重点实验室重庆 400044;
2. 重庆大学机械与运载工程学院重庆 400044

收稿日期:2020-10-27 修回日期:2021-03-15 出版日期:2021-09-20 发布日期:2021-11-30
通讯作者: 胡建军(通信作者),男,1973年出生,博士,教授,博士研究生导师。主要研究方向为车辆动力传动及其综合匹配控制、电动汽车动力传动系统构型优选及能量管理。E-mail:hujianjun@cqu.edu.cn
作者简介:刘子睿,男,硕士研究生。主要研究方向为电动汽车动力传动系统构型优选及能量管理。E-mail:liuziruicqu@163.com;梅博,男,硕士研究生。主要研究方向为电动汽车动力传动系统构型优化设计、基于交通信息融合的电动汽车动力系统控制策略。E-mail:maybo3@163.com;彭航,男,博士研究生。主要研究方向为混合动力电动汽车的动力总成构型的生成、搜索、分析和优化。E-mail:hang_peng@163.com

Optimization Design Scheme of Power-split Hybrid Electric Powertrain Configuration with Single Planetary Gear

HU Jianjun^1,2, LIU Zirui², MEI Bo², PENG Hang²

1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044;
2. College of Mechanical and Vehicle Engineering, Chongqing University, Chongqing 400044

Received:2020-10-27 Revised:2021-03-15 Online:2021-09-20 Published:2021-11-30

摘要/Abstract

摘要： 基于行星齿轮机构的功率分流式混合动力系统可利用双电机分別对发动机进行转速调节和转矩补偿，从而使得混合动力汽车（Hybrid electric vehide，HEV）的燃油经济性和排放性能得到显著提升。然而，单行星排功率分流式混合动力系统在行驶过程中会频繁产生功率循环现象，降低了系统整体工作效率。为了进一步提升燃油经济性，提出一种单行星排功率分流式混合动力系统构型优化设计方案。首先，对单行星排功率输出/输入式混合动力系统的运行特征以及拓扑结构进行分析，拆分并重组两种拓扑结构的连接关系，以生成基础拓扑结构方案。其次，基于基础拓扑结构方案探索全部的可行性拓扑结构，并对可行性拓扑结构进行组合以生成新的构型方案。最终采用基于动态规划（DP）算法的全局最优的控制策略对所生成的构型方案的最佳经济性和最佳动力性能进行仿真分析。结果表明，所提出的单行星排功率分流式混合动力系统构型优化方案能够有效提升整车综合行驶性能。

关键词: 混合动力汽车, 动力系统构型, 拓扑设计, 燃油经济性

Abstract: The power-split hybrid electric powertrain (PHEP) based on planetary gear can adjust the engine speed and compensate the engine torque by adopting double motors, which makes the fuel economy and emission performance of hybrid electric vehicle (HEV) significantly improved. However, the PHEP with single planetary gear can generate power cycling phenomenon frequently during driving, reducing the overall efficiency of the system. To further improve fuel economy, an optimization design scheme of PHEP configuration with single planetary gear is proposed in this paper. Firstly, the operating characteristic and the topology of output/input PHEP configuration are analyzed, the connection relationship of the two topologies is break up and recombined to generate the basic topology scheme. Secondly, all feasible topologies based on basic topology scheme are explored, and all feasible topologies are combined to generate a new configuration scheme. Finally, the global optimization control strategy based on dynamic programming (DP) algorithm is applied to simulate the best economy and the best dynamic performance of the proposed configuration scheme. The results demonstrate that the optimization design scheme of PHEP configuration with single planetary gear proposed in this paper can effectively improve the vehicle comprehensive operating performance.

Key words: hybrid electric vehicle, powertrain configuration, topology design, fuel economy

中图分类号:

U469

胡建军, 刘子睿, 梅博, 彭航. 一种单行星排功率分流式混合动力系统构型优化设计方案[J]. 机械工程学报, 2021, 57(18): 264-276.

HU Jianjun, LIU Zirui, MEI Bo, PENG Hang. Optimization Design Scheme of Power-split Hybrid Electric Powertrain Configuration with Single Planetary Gear[J]. Journal of Mechanical Engineering, 2021, 57(18): 264-276.

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一种单行星排功率分流式混合动力系统构型优化设计方案

Optimization Design Scheme of Power-split Hybrid Electric Powertrain Configuration with Single Planetary Gear

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