制冷学报2026，Vol.47Issue(1)：127-137,11.DOI:10.12465/issn.0253-4339.20241219001
双对象控制策略对直冷系统温控及电动汽车能量流影响特性
Impact of Dual-Objective Control Strategy on Temperature Control in Direct-Cooling System and Energy Flow in Electric Vehicles
摘要
Abstract
Thermal-management systems for electric vehicles have become a key research focus for enhancing cabin thermal comfort and battery performance.This study proposes a direct-cooling system architecture to address the different temperature-response characteristics of cabins and power batteries.A dual-objective temperature-control strategy is developed based on ambient temperature,vehicle operating status,and real-time load temperature information,enabling the dynamic adjustment of thermal-control priorities between the cabin and battery to ensure optimal system performance.A thermal-management system test bench is constructed in an environmental chamber,and a simulation model of the vehicle thermal-management system is developed.Performance comparisons are conducted between the three control strategies under various driving conditions and ambient temperatures.The results demonstrate that the dual-objective strategy exhibits superior temperature-control capability and energy efficiency across different environmental conditions,along with optimal battery state-of-charge(SOC)recovery performance.Under 35℃ high-temperature conditions,the cabin and battery reach target temperatures within 51 s and 547 s,respectively.Under-7℃ low-temperature conditions,they reach preset values within 127 s and 365 s,respectively,with significantly improved SOC recovery rates.Although the dual-objective strategy slightly increases energy consumption(approximately 1.2％-3.0％ higher than the cabin-priority strategy),it substantially enhances the battery thermal-control efficiency and overall system performance,demonstrating high potential for practical applications.关键词
电动汽车/直冷系统/控制策略/温控特性/能量流Key words
electric vehicles/direct-cooling system/control strategies/temperature control characteristics/energy flow分类
通用工业技术引用本文复制引用
张晨光,何亚茹,杨大鹏,梁坤峰,陈浩远,王林,陈彬,曹勇,段浩磊,李硕鹏,朱登宇..双对象控制策略对直冷系统温控及电动汽车能量流影响特性[J].制冷学报,2026,47(1):127-137,11.基金项目
国家自然科学基金(52378094,52376005)资助项目.(The project was supported by the National Natural Science Foundation of China(No.52378094&No.52376005).)本文受河南省科技发展计划项目(222102220033)和洛阳市科技发展计划项目(2302035A)资助.(The project was supported by Henan Province Science and Technology Development Plan Project (No. 222102220033) and Luoyang City Science and Technology Development Plan Project (No. 2302035A). ) （52378094,52376005）
