汽车工程 ›› 2025, Vol. 47 ›› Issue (7): 1258-1267.doi: 10.19562/j.chinasae.qcgc.2025.07.003

• • 上一篇    

燃料电池发动机空气系统旁通流量估计

邱宇奇1,杨川2,曾韬2,张元海2,刘正兴2,张学智3,喻清华2,张财志1()   

  1. 1.重庆大学机械与运载工程学院,重庆 400044
    2.深蓝汽车科技有限公司,重庆 400020
    3.河北金士顿科技有限责任公司,辛集 050031
  • 收稿日期:2025-02-20 修回日期:2025-03-26 出版日期:2025-07-25 发布日期:2025-07-18
  • 通讯作者: 张财志 E-mail:czzhang@cqu.edu.cn
  • 基金资助:
    第二十七届中国科协年会学术论文。国家重点研发计划项目(2022YFE0137600)、国家自然科学基金(52276171)、中央高校基本科研业务费专项资金(2024CDJZCQ-003)和汽车协同中心揭牌项目(2022CDJDX-004)资助。

Bypass Flow Estimation of Fuel Cell Engine Air System

Yuqi Qiu1,Chuan Yang2,Tao Zeng2,Yuanhai Zhang2,Zhengxing Liu2,Xuezhi Zhang3,Qinghua Yu2,Caizhi Zhang1()   

  1. 1.School of Mechanical and Vehicle Engineering,Chongqing University,Chongqing 400044
    2.Deepal Automotive Technology Co. ,Ltd. ,Chongqing 400020
    3.Hebei Kingston Technology Co. ,Ltd. ,Xinji 050031
  • Received:2025-02-20 Revised:2025-03-26 Online:2025-07-25 Published:2025-07-18
  • Contact: Caizhi Zhang E-mail:czzhang@cqu.edu.cn

摘要:

针对旁通阀处的流量计不耐高温的特性问题,本文提出一种基于半物理半经验模型的旁通流量估计的方法。首先,本文搭建燃料电池发动机空气系统,相比传统的控制结构,该空气系统取消了加湿器以及增加空气回路旁通阀。其次,根据采集的实验数据,仿真验证建立的旁通流量估计模型的有效性。最后,在实验台架中进行模型在线验证。仿真与实验研究表明,提出的模型在旁通阀开度在2°-32°和34°-42°情形下,平均相对误差率分别为2.72%和3.35%,模型具有较高的精度,该方法可用作空气系统结构设计优化和喘振控制策略的开发。

关键词: 旁通阀, 半物理半经验模型, 旁通流量估计, 燃料电池发动机, 空气系统

Abstract:

For the problem of high temperature resistance of the flow meter at the bypass valve, a method to estimate the bypass flow is proposed based on a semi-physical and semi-empirical model in this paper. Firstly, a fuel cell engine air system is established. Compared to the traditional control structure, the air system eliminates the humidifier and adds an air circuit bypass valve. Secondly, based on the collected data, the effectiveness of the established bypass flow estimation model is verified by simulation. Finally, the model is verified online in the test bench. Simulation and experimental studies show that the proposed model has an average relative error rate of 2.72% and 3.35% when the bypass valve opening is 2°-32° and 34°-42°, respectively. The model has high accuracy and can be used for air system structural design optimization and surge control strategy development.

Key words: bypass valve, semi-physical and semi-empirical model, bypass flow estimation, fuel cell engine, air system