汽车工程 ›› 2022, Vol. 44 ›› Issue (4): 609-616.doi: 10.19562/j.chinasae.qcgc.2022.04.016

所属专题: 智能网联汽车技术专题-规划&控制2022年

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智能网联电动汽车经济性巡航速度规划

张哲1,丁海涛1(),张袅娜2(),郭孔辉1   

  1. 1.吉林大学,汽车仿真与控制国家重点实验室,长春  130022
    2.长春工业大学电气与电子工程学院,长春  130012
  • 收稿日期:2021-11-02 修回日期:2021-12-26 出版日期:2022-04-25 发布日期:2022-04-22
  • 通讯作者: 丁海涛,张袅娜 E-mail:dinght@jlu.edu.cn;zhangniaona@163.com

Economic Cruising Speed Planning of Intelligent Network Connected Electric Vehicle

Zhe Zhang1,Haitao Ding1(),Niaona Zhang2(),Konghui Guo1   

  1. 1.Jilin University,State Key Laboratory of Automotive Simulation and Control,Changchun  130022
    2.School of Electrical & Electronic Engineering,Changchun University of Technology,Changchun  130012
  • Received:2021-11-02 Revised:2021-12-26 Online:2022-04-25 Published:2022-04-22
  • Contact: Haitao Ding,Niaona Zhang E-mail:dinght@jlu.edu.cn;zhangniaona@163.com

摘要:

本文中在充分利用智能交通环境信息的前提下,提出一种基于滚动距离域近似动态规划的经济性巡航速度规划方法,实现了车辆在不同坡度道路上的经济性巡航,有效延长电动汽车的续航里程。首先,根据动态交通环境,设计了基于距离域的分段滚动形式,建立车速与道路坡度的映射关系;其次,采用了带有异步并行网络的近似动态规划算法,综合考虑安全性和通行效率,快速求解经济性巡航车速;最后,搭建智能网联汽车硬件在环仿真平台对所提方法进行了验证。结果表明,与传统定速巡航策略相比,本文中提出的方法在不增加通行时间的前提下,可有效降低车辆能耗,延长续航里程。

关键词: 网联电动汽车, 经济性驾驶, 近似动态规划, 能量管理

Abstract:

On the premise of sufficiently utilizing intelligent traffic environment information, an economical cruising speed planning method based on approximate dynamic programming in rolling distance domain is proposed in this paper, to enable vehicle achieve economic cruise on roads with different slopes, effectively extending the driving range of electric vehicles. Firstly, according to the dynamic traffic environment, the segmented rolling form based on distance domain is designed, and the mapping relationship between vehicle speed and road slope is established. Then, the approximate dynamic programming algorithm with asynchronous parallel network is adopted to rapidly calculate the economic cruising speed with concurrent considerations of safety and traffic efficiency. Finally, a hardware-in-the-loop simulation platform for intelligent connected vehicle is built to verify the method proposed. The results indicate that compared with traditional constant-speed cruise strategy, the proposed method effectively reduces the energy consumption and extends the driving range of vehicle without increasing its travel time.

Key words: network connected EV, economic driving, approximate dynamic programming, energy management