汽车工程 ›› 2020, Vol. 42 ›› Issue (10): 1293-1301.doi: 10.19562/j.chinasae.qcgc.2020.10.001

• •    下一篇

智能网联混合动力汽车队列模型预测分层控制*

郭景华1,2, 王班1,2, 王靖瑶1,2, 罗禹贡3, 李克强3   

  1. 1.厦门大学航空航天学院,厦门 361005;
    2.厦门大学深圳研究院,深圳 518000;
    3.清华大学车辆与运载学院,北京 100084
  • 收稿日期:2019-11-19 修回日期:2020-01-29 出版日期:2020-10-25 发布日期:2020-10-26
  • 通讯作者: 郭景华,副教授,博士,E-mail:guojh@xmu.edu.cn。
  • 基金资助:
    * 国家重点研发计划(2016YFB0100900)、深圳市科技计划基础研究(JCYJ20180306172720364)和中央高校基本科研业务费专项资金(20720190015)资助。

Hierarchical Model Predictive Control of Intelligent and Connected Hybrid Electric Vehicles Platooning

Guo Jinghua1,2, Wang Ban1,2, Wang Jingyao1,2, Luo Yugong3, Li Keqiang3   

  1. 1. School of Aerospace Engineering, Xiamen University, Xiamen 361005;
    2. Shenzhen Research Institute, Xiamen University, Shenzhen 518000;
    3. School of Vehicle and Mobility,Tsinghua University, Beijing 100084
  • Received:2019-11-19 Revised:2020-01-29 Online:2020-10-25 Published:2020-10-26

摘要: 提出了一种智能网联混合动力汽车队列的模型预测分层控制方法,有效提高了队列的安全性、燃油经济性和乘坐舒适性。首先,建立了可准确表征智能网联混合动力汽车队列行驶中多过程耦合特性的动力学模型。然后,针对智能网联混合动力汽车队列系统的非线性和混杂特征,构建了智能网联混合动力汽车队列的模型预测分层控制构架。上层控制器利用所建立的基于反馈校正的鲁棒预测模型,消除由于参数误差或车辆动态特性变化引起的模型失配现象,增强预测模型的准确性和鲁棒性,进而实现安全性、经济性和舒适性多目标协调控制和智能网联混合动力汽车队列期望加速度的在线优化;下层控制器利用队列中智能网联混合动力汽车多系统动态协调控制器,实现发动机和电机两个动力源的准确与协调控制。最后,试验结果表明:所提出的模型预测分层控制系统在提高队列中车辆的跟踪能力的同时,明显改善了车辆的燃油经济性和乘坐舒适性。

关键词: 智能网联混合动力汽车, 队列, 模型预测控制, 燃油经济性, 协同控制

Abstract: This paper presents a hierarchical model predictive control method for intelligent connected hybrid electric vehicles (ICHEVs) platooning to improve the safety, fuel economy, and riding comfort. Firstly, a dynamic model is established to accurately characterize the multi-process coupling characteristics of ICHEVs platooning. Then, a hierarchical model predictive controller (HMPC) for ICHEVs platooning is established considering the nonlinear and discrete characteristics of ICHEVs platooning. The upper layer controller builds a robust prediction model based on feedback correction to eliminate model mismatch caused by parameter errors or vehicle dynamic characteristics changes and improve the accuracy and robustness of the prediction model so as to realize the multi-objective coordinated control of safety, economy, and comfort as well as the online optimization of the expected acceleration of ICHEVs platooning. The lower layer controller utilizes the multi-system dynamic coordination controller in the ICHEVs platooning to realize accurate and coordinated control of the two power sources of the engine and motor. Finally, the test results show that the proposed hierarchical MPC system can improve the tracking capability in the platooning and significantly improve fuel economy and riding comfort of ICHEVs

Key words: intelligent and connected hybrid electric vehicles, platooning , model predictive control, fuel economy, coordinated control