10.16638/jki.1671-7988.2020.06.004
纯电动车DC-DC电路故障诊断
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黄政杰1，倪星鑫2
（1.四川交通职业技术学院汽车工程系，四川成都610030；2.四川鼎城司法鉴定中心，四川成都610030）
摘要：当前，我国新能源汽车技术水平大幅提升，产业规模快速扩大，产业链日趋完善，新能源汽车在汽车总销量的占比越来越高。伴随着新能源汽车销量的增多，消费者、使用者对新能源汽车的售后维修服务也提出了更高的要求。传统内燃机汽车的供电设备主要是蓄电池和由内燃机驱动的发电机。纯电动汽车供电设备则是低压蓄电池和动力电池组，动力电池组提供的是高压直流电，所以需要将高压直流电转换为低压直流电为蓄电池以及低压用电设备供电，这种转换装置即DC-DC直流电源转化模块。文章重点对纯电动车DC-DC电路故障进行分析，为纯电动汽车特有故障诊断提供数据支撑和案例借鉴。宝马x2混动
关键词：新能源汽车；DC-DC ；电路故障
中图分类号：U472.9 文献标识码：A 文章编号：1671-7988(2020)06-10-03
Fault Diagnosis of DC-DC Circuit for Pure Electric Vehicle
本田飞度三厢报价
氙气灯原理2013驾考Huang Zhengjie1, Ni Xingxin2
（1.Sichuan V ocational and Technical College of Communications, Department of Automotive Engineering, Sichuan Chengdu 610030; 2.Sichuan Dingcheng Forensic Service, Sichuan Chengdu 610030）
Abstract: At present, China's new energy automobile technology level has been greatly improved, the rapid expansion of the industrial scale, the industry chain is improving, the new energy automobile in the total sales of cars is getting higher and higher. With the increase of sales of new energy vehicles, consumers and users also put forward higher requirements for after-sales service of new energy vehicles. The power supply equipment of traditional internal combustion engine vehicle is mainly battery and generator driven by internal combustion engine. Pure electric vehicle power supply equipment is low-voltage batteries and power batteries, power batteries provide high-voltage direct current, so need to convert high- voltage direct current to low-voltage direct current for battery and low-voltage power supply equipment, the converter is a DC-DC converter. This paper foc
uses on the analysis of DC-DC circuit fault of pure electric vehicle, which provides data support and case reference for the special fault diagnosis of pure electric vehicle.
Keywords: New energy vehicle; DC-DC; Circuit failure
CLC NO.: U472.9 Document Code: A Article ID: 1671-7988(2020)06-10-03
1 DC-DC概述
one off车载供电设备是汽车电气设备正常工作运行的前提，传统汽车供电设备主要是蓄电池和由内燃机驱动的发电机，纯电动汽车不再搭载内燃机，取而代之的是搭载可充电的动力电池为整车提供高压电，作为维持车辆正常工作运行的能量源。由于车上大量的电子元件和控制系统都在使用12V电源，所以必须有一种装置能够对蓄电池进行充电，以保证充足的
作者简介：黄政杰，就职于四川交通职业技术学院汽车工程系。
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