主办:陕西省汽车工程学会
ISSN 1671-7988  CN 61-1394/TH
创刊:1976年

汽车实用技术 ›› 2024, Vol. 49 ›› Issue (11): 33-39.DOI: 10.16638/j.cnki.1671-7988.2024.011.007

• 新能源汽车 • 上一篇    

纯电动汽车在不同环境温度下的 WLTC 工况 续驶里程影响因素研究

何嘉俊 1,2,李 路 1,2,赵智超*1,2,王 毅 1,2   

  1. 1.中国汽车工程研究院股份有限公司;2.中汽院新能源科技有限公司
  • 发布日期:2024-06-26
  • 通讯作者: 赵智超
  • 作者简介:何嘉俊(1997-),男,硕士,工程师,研究方向为整车能量管理,E-mail:hejiajun@caeri.com.cn。 通信作者:赵智超(1986-),男,博士,高级工程师,研究方向为整车能量管理,E-mail:zhaozhichao@caeri.com.cn。

Research on the Influencing Factors of WLTC Driving Range of Battery Electric Vehicle under Different Ambient Temperatures

HE Jiajun1,2, LI Lu1,2, ZHAO Zhichao*1,2 , WANG Yi1,2   

  1. 1.China Automotive Engineering Research Institute Company Limited; 2.China Automotive Institute New Energy Technology Company Limited
  • Published:2024-06-26
  • Contact: ZHAO Zhichao

摘要: 为探究不同环境温度对续驶里程及电量消耗的影响,文章以某纯电动车型为例,开展 了常温 23 ℃、高温 35 ℃、低温-7 ℃下的标准全球轻型车辆测试循环(WLTC)工况的能 量流测试,并且通过建立能量流分析模型定量分析了不同环境温度下的车辆能量传递特性。 结果表明,环境温度对电池充放电特性的影响、热管理系统能耗的增加、电驱动系统能量转 换效率的影响、低温模拟阻力的增加是导致车辆续航里程减少、电耗增加的主要原因。

关键词: WLTC;纯电动汽车;环境温度;能量流;续航衰减

Abstract: In order to explore the influence of different ambient temperatures on driving range and power consumption, this paper takes a battery electric vehicle model as an example, and carries out the standard worldwide light-duty test cycle (WLTC) range test at room temperature of 23 ℃, high temperature of 35 ℃, and low temperature -7 ℃, and quantitatively analyzes the energy transfer characteristics of vehicles at different ambient temperatures by establishing an energy flow analysis model. The results show that the influence of ambient temperature on the charging and discharging characteristics of the battery, the increase of energy consumption of the thermal management system, the influence of the energy conversion efficiency of the electric drive system, and the increase of low temperature simulation resistance are the main reasons for the decrease of vehicle mileage and the increase of power consumption.

Key words: WLTC; Battery electric vehicle; Ambient temperature; Energy flow; Endurance attenuation