Experimental Study on Optimization of Charge Amount and Configuration for Integrated Thermal-Management System of R290 Heavy-Duty Trucks

Liu Zhiyong; Li Lei; Lu Bingqing; Wang Xiaojun; Shi Junye; Chen Jiangping

doi:10.12465/issn.0253-4339.20260521002

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Experimental Study on Optimization of Charge Amount and Configuration for Integrated Thermal-Management System of R290 Heavy-Duty Trucks

更新时间：2026-09-14

- Experimental Study on Optimization of Charge Amount and Configuration for Integrated Thermal-Management System of R290 Heavy-Duty Trucks
- Journal of Refrigeration Pages: 1-9(2026)
- 作者机构：
  
  1.上海交通大学制冷与低温工程研究所上海 200240
  2. 犀重新能源汽车有限公司杭州 310000
  3. 贵州贵航汽车零部件股份有限公司贵阳 550009
- 作者简介：
  
  Shi Junye， male， full-time researcher， Ph. D.， School of Mechanical and Power Engineering， Shanghai Jiao Tong University， 86-21-34206775， E-mail： jyshi@sjtu.edu.cn. Research fields： thermal management system for new energy vehicles， microchannel heat exchanger technology， etc.
- 基金信息：
- DOI：10.12465/issn.0253-4339.20260521002
  CLC： TB61⁺1;U469.72
- Received：21 May 2026，
  
  Revised：2026-07-01，
  
  Accepted：07 July 2026，
  
  Online First：14 September 2026，
- 稿件说明：
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刘志勇,李磊,陆冰清等.R290重卡集成热管理系统充注量优化与构型实验研究[J].制冷学报,

Liu Zhiyong,Li Lei,Lu Bingqing,et al.Experimental Study on Optimization of Charge Amount and Configuration for Integrated Thermal-Management System of R290 Heavy-Duty Trucks[J].Journal of Refrigeration,
刘志勇,李磊,陆冰清等.R290重卡集成热管理系统充注量优化与构型实验研究[J].制冷学报, DOI：10.12465/issn.0253-4339.20260521002.

Liu Zhiyong,Li Lei,Lu Bingqing,et al.Experimental Study on Optimization of Charge Amount and Configuration for Integrated Thermal-Management System of R290 Heavy-Duty Trucks[J].Journal of Refrigeration, DOI：10.12465/issn.0253-4339.20260521002.

摘要

针对重型卡车热管理的高热负荷与宽温域需求，本文提出一种R290集成式热管理系统架构，通过梯度充注实验与4种构型对比，确定了最佳充注量与优选构型。结果表明：乘员舱制冷/制热模式的最佳充注量分别为400~580 g、470~590 g，电池快冷模式为530~560 g；制冷工况下，双系统风冷构型性能最优，40 ℃时行车制冷量达14.8 kW、驻车制冷量达24.0 kW，完全满足高温需求；制热工况下，单系统水冷/120 mL构型表现最佳，-30 ℃时行车制热量达27.0 kW、驻车制热量达14.7 kW，结合PTC辅助可满足极端低温需求。综上，炎热地区推荐双系统风冷构型，寒冷地区推荐单系统水冷/120 mL构型。研究为重卡R290热管理系统设计提供了实验依据。

Abstract

To address the high thermal load and wide temperature range requirements of heavy-duty trucks， this study proposes an R290 integrated thermal-management system. Through graded refrigerant charge and comparisons of four configurations， the optimal charge amount and preferred configuration are determined. The results indicate that the optimal charge amounts for the passenger compartment cooling and heating modes are 400-580 and 470-590 g， respectively， while the optimal charge amount for the battery rapid cooling is 530-560 g. Under cooling conditions， the dual-system air-cooled configuration shows the best performance， achieving a cooling capacity of 14.8 kW while driving and a cooling capacity of 24.0 kW while parked at 40 ℃， thereby fully satisfying high-temperature requirements. Under heating conditions， the single-system water-cooled/120 mL configuration shows the best performance， achieving a heating capacity of 27.0 kW while driving and of a heating capacity of 14.7 kW while parked at -30 ℃； combined with PTC （positive temperature coefficient） assistance， it can fulfill the extreme low-temperature requirements. In summary， the dual-system air-cooled configuration is recommended for hot regions， while the single-system water-cooled/120 mL configuration is recommended for cold regions. This study provides the experimental evidence for the design of R290 thermal-management systems in heavy-duty trucks.

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references

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