汽车工程 ›› 2023, Vol. 45 ›› Issue (2): 285-292.doi: 10.19562/j.chinasae.qcgc.2023.02.013

所属专题: 新能源汽车技术-电驱动&能量管理2023年

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TTR汽车等效燃油消耗最小的能量管理策略研究

刘晋霞(),梁志豪,王强,温明星   

  1. 山东科技大学交通学院,青岛  266590
  • 收稿日期:2022-07-31 修回日期:2022-09-03 出版日期:2023-02-25 发布日期:2023-02-21
  • 通讯作者: 刘晋霞 E-mail:xiar_liu@163.com
  • 基金资助:
    国家自然科学基金(52002229);山东省自然科学基金(ZR2020ME085)

Research on the Equivalent Fuel Consumption Minimizing Energy Management Strategy of Through-the-Road Vehicle

Jinxia Liu(),Zhihao Liang,Qiang Wang,Mingxing Wen   

  1. College of Transportation,Shandong University of Science and Technology,Qingdao  266590
  • Received:2022-07-31 Revised:2022-09-03 Online:2023-02-25 Published:2023-02-21
  • Contact: Jinxia Liu E-mail:xiar_liu@163.com

摘要:

为改善通过路面实现动力耦合与电池充电的TTR汽车经济性,分析TTR汽车结构及工作模式,基于等效油耗最小的能量管理策略(ECMS),计算固定等效因子(CECMS);为使电池SOC保持稳定并控制发动机工作于低燃油消耗区,将行驶所需发动机等价总转矩及电池SOC模糊化,制定等效因子的模糊控制规则,而提出模糊自适应等效燃油消耗最小控制策略(FAECMS)。利用MATLAB/Simulink建立包含TTR汽车动力学的CECMS、FAECMS模型,选取FTP75、CLTC、WLTP 3种标准工况,当电池SOC初始值为60%时进行仿真计算,得出FAECMS相对CECMS在3种工况下电池SOC更稳定,并分别节约燃油5.5%、2.6%、8.3%。

关键词: TTR汽车, 等效燃油消耗, 模糊控制, 能量管理策略

Abstract:

To improve the economy of through-the-road (TTR) vehicle, which realizes dynamic coupling and battery charging through-the-road, a fuzzy adaptive equivalent fuel consumption minimizing strategy (FAECMS) is proposed in this paper. After analyzing the structure and working modes of TTR vehicle, the constant equivalent factor ECMS(CECMS) is calculated based on equivalent fuel consumption minimizing strategy (ECMS). In order to keep the battery SOC stable and control the engine to work in low fuel consumption area, the total equivalent torque of the engine for driving and the battery SOC are fuzzed and fuzzy control rules of equivalent factor are established. CECMS and FAECMS models including TTR vehicle dynamics are established by MATLAB/Simulink. Under the three types of standard working conditions of FTP75, CLTC and WLTP, when the initial value of battery SOC is 60%, simulation calculation is carried out. The results show that the battery SOC is more stable with FAECMS, and compared with CECMS, the fuel of FAECMS is saved by 5.5%, 2.6% and 8.3% respectively.

Key words: TTR vehicle, equivalent fuel consumption, fuzzy control, energy management strategy