吉林大学学报(工学版) ›› 2015, Vol. 45 ›› Issue (6): 1743-1750.doi: 10.13229/j.cnki.jdxbgxb201506002

• 论文 • 上一篇    下一篇

基于驾驶意图的插电式混合动力汽车能量管理策略

秦大同， 杨官龙， 胡明辉， 刘永刚， 林毓培   

  1. 重庆大学 机械传动国家重点实验室,重庆 400044
  • 收稿日期:2014-04-04 出版日期:2015-11-01 发布日期:2015-11-01
  • 作者简介:秦大同(1956-),男,教授,博士生导师.研究方向:智能传动与控制.E-mail:dtqin@cqu.edu.cn
  • 基金资助:

    国家科技支撑计划项目(2013BAG 12B00); 国家自然科学基金项目(51305468)

Energy management strategy of plug-in hybridelectric system based on driving intention

QIN Da-tong, YANG Guan-long, HU Ming-hui, LIU Yong-gang, LIN Yu-pei   

  1. The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044,China
  • Received:2014-04-04 Online:2015-11-01 Published:2015-11-01

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摘要：

为了使插电式混合动力汽车(PHEV)在不同驾驶意图下合理使用电池电能以获得更好的能耗经济性,采用模糊推理控制器识别驾驶员意图,依据混合动力系统的动力耦合方式、电池荷电状态(SOC)及发动机特性曲线进行工作模式划分,建立能耗经济性目标函数,运用瞬时优化方法进行发动机和电机转矩分配,在此基础上提出了基于驾驶意图的能量管理策略。利用Matlab/Simulink仿真平台搭建整车模型,在新欧洲驾驶循环(NEDC)工况下进行仿真分析,结果表明:采用该能量管理策略可以实现发动机和ISG电机的优化控制,使发动机的工作点总体运行在高效区;与电量消耗(CD)-电量维持(CS)模式的能量管理策略相比,百公里油耗降低了8.24%。通过整车道路试验对所提出的能量管理策略的有效性进行验证,结果表明:采用该能量管理策略的插电式混合动力汽车的百公里油耗较原汽油车降低32.93%。

关键词: 车辆工程, 插电式混合动力汽车, 驾驶意图, 能量管理策略, 百公里油耗

Abstract:

In order to obtain good energy consumption economy for Plug-in Hybrid Electric Vehicle (PHEV) and reasonably distribute battery power under different driving condition, a fuzzy inference controller is used to identify the driver's intention. The working mode is partitioned according to the hybrid system dynamic coupling mode, the State of Charge (SOC) of the battery and the engine working characteristic curve. Then, instantaneous optimization method is used to distribute engine and motor torque, in which the energy consumption economy is taken as the objective function. Finally, the energy management strategy based on driving intention is proposed. A vehicle model is built on the Matlab/Simulink platform, and simulated under New European Driving Cycle (NEDC) condition. Simulation results indicate that the proposed strategy can realize the optimization control of the engine and ISG motor and keep the engine operation points within the peak efficiency region. The fuel consumption per 100 km is saved by 8.24% in comparison with the energy management strategy of the charge depleting and charge sustaining mode. In order to further verify the proposed energy management strategy, vehicle road test is conducted, and results show that the fuel consumption per 100 km is reduced by 32.93% compared with prototype gasoline vehicle.

Key words: vehicle engineering, plug-in hybrid electric vehicle, driving intention, energy management strategy, fuel consumption per hundred kilometers

中图分类号: 

  • U461.8
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