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

汽车实用技术 ›› 2025, Vol. 50 ›› Issue (13): 1-6.DOI: 10.16638/j.cnki.1671-7988.2025.013.001

• 新能源汽车 •    

整车低压附件功耗对续航能耗影响研究

白巴特尔，张益铭，聂国乐，张先锋，牛亚卓   

  1. 中汽研汽车检验中心（天津）有限公司
  • 发布日期:2025-07-11
  • 通讯作者: 白巴特尔
  • 作者简介:白巴特尔（1988－），男，硕士，工程师，研究方向为新能源汽车节能优化

Research on the Impact of Energy Consumption of Vehicle Low-Voltage Auxiliary on Driving Range Power Consumption

BAI Bateer, ZHANG Yiming, NIE Guole, ZHANG Xianfeng, NIU Yazhuo   

  1. CATARC Automotive Test Center (Tianjin) Company Limited
  • Published:2025-07-11
  • Contact: BAI Bateer

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摘要： 文章选择 4 辆不同类型的新能源汽车（NEVs）展开低压附件（LVA）能耗测试工作， 分析不同类型车型的低压附件功耗数据，以及不同车辆运行状态下关键低压附件能耗变化规 律，评估低压附件功耗对整体车辆续航能耗的影响。试验结果表明，全球轻型车统一测试循 环（WLTC）和中国轻型汽车行驶工况（CLTC）工况下低压附件平均功率变化范围为 114～ 595 W 不等，平均运行功率较大的附件主要为智能驾驶系统、智能座舱系统、燃油泵、多媒 体显示屏幕、电池电机控制器、热管理水泵、组合灯等。低压附件（Low-Voltage Auxiliary, LVA） 功耗对新能源汽车续航能耗影响显著，在 CLTC 循环工况下，4 款车型的 LVA 能耗占总能耗 的 2.6%～10.3%。LVA 功率降低 130 W，CLTC 循环工况电耗降低 2.3%，降低 LVA 能耗可有 效提升新能源汽车续航能耗。

关键词: 新能源汽车；LVA 功耗；智驾系统能耗；能耗优化

Abstract: This study conducts systematic energy consumption evaluations of low-voltage auxiliary (LVA) systems in 4 types of new energy vehicles (NEVs), characterizes their operational patterns across different vehicle operating conditions and evaluates their systemic impact on vehicular energy consumption. Results demonstrate that under worldwide harmonized light vehicles test cycle (WLTC) and China light-duty vehicle test cycle (CLTC), the average power consumption of LVA systems varies between 114 and 595 W. High-energy-consumption auxiliaries include intelligent driving systems, smart cockpit systems, fuel pumps, multimedia displays, battery/motor controllers, thermal management water pumps, and combination lamps. The power consumption of LVA demonstrates significant impacts on the energy economy of NEVs. Test result across 4 types of NEVs reveals that LVA energy consumption accounts for 2.6%～10.3% of total energy expenditure under CLTC cycles. A targeted 130 W reduction in LVA power consumption achieves a 2.3% decrease in CLTC driving cycle energy consumption. These findings highlight that strategic optimization of LVA energy consumption presents an effective way for enhancing NEVs range efficiency.

Key words: new energy vehicles; low-voltage auxiliary power consumption; intelligent driving system energy consumption; energy consumption optimization