能耗优化为目标的电动汽车风扇水泵控制研究  

Research on the Control of Electric Vehicle Fan and Water Pump with the Goal of Energy Consumption Optimization

作　　者：李飞鹏 杨甜甜 李国兴 石巧娜 LI Feipeng;YANG Tiantian;LI Guoxing;SHI Qiaona(Taiyuan University of Technology College of Mechanical and Vehicle Engineering,Shanxi Taiyuan 030024,China)

机构地区：[1]太原理工大学机械与运载工程学院,山西太原030024

出　　处：《机械设计与制造》2025年第2期348-353,共6页Machinery Design & Manufacture

基　　金：国家自然科学基金(51805353);山西省回国留学人员科研资助项目(HGKY2019041)。

摘　　要：降低辅助系统能耗是在不提升电池容量前提下增加电动汽车续航里程和消减里程焦虑最为有效的技术途径之一。风扇与水泵是冷却辅助系统的重要组成部分,是保证电动汽车电机与动力电池正常工作的核心部件,其工作状态关系到电机与动力电池的工作效率及使用寿命。现有风扇水泵控制策略以阈值控制策略为主,但存在性能过剩,能耗较高的问题。这里提出以能耗优化为目标的风扇水泵控制策略,可以在满足散热性能的前提下降低能耗。通过搭建KULI一维热管理模型对某款电动汽车风扇和水泵进行了转速控制仿真研究。对比分析发现,在单个CLTC-P循环工况下,采用能耗优化为目标控制策略的冷却系统能耗较阈值控制策略的能耗低49.5%。Reducing the energy consumption of auxiliary systems is one of the most effective technical ways to increase the cruising range of electric vehicles and reduce range anxiety without increasing the battery capacity.Fans and water pumps are an impor⁃tant part of the cooling auxiliary system,and are the core components to ensure the normal operation of the electric vehicle motor and power battery.Their working status is related to the working efficiency and service life of the motor and power battery.The exist⁃ing fan and water pump control strategy is mainly based on the threshold control strategy,but there are problems of excess perfor⁃mance and high energy consumption.Here,a fan pump control strategy aiming at energy consumption optimization is proposed,which can reduce energy consumption on the premise of satisfying heat dissipation performance.By building the KULI one-dimen⁃sional thermal management model,the speed control simulation research of a certain electric vehicle fan and water pump is carried out.The comparative analysis shows that under the single CLTC-P cycle condition,the energy consumption of the cooling system using energy consumption optimization as the target control strategy is 49.5%lower than that of the threshold control strategy.

关 键 词：电机冷却回路 最低能耗 联合仿真 

分 类 号：TH16[机械工程—机械制造及自动化]