电子真空泵保险丝熔断分析改进研究
2021-10-13叶明瑞辛庆锋李航贾宝光孙福禄胡志刚
叶明瑞 辛庆锋 李航 贾宝光 孙福禄 胡志刚



摘 要:随着环保要求的越来越严格,国家和地方对新能源车的鼓励和支持推动了新能源车的购买需求,2021年销量更达到了136.7万辆,创了历史新高。电子真空泵作为纯电动车唯一的真空提供源,是制动系统中至关重要的部件,如产生失效故障,就无法提供真空助力,降低了制动安全性,同时非常容易乘客抱怨.本文对某车型制动系统的电子真空泵保险丝熔断的故障进行了全面分析,并通过改进彻底解决了该故障。为平台车型的开发提供了技术支持!
关键词:电子真空泵 保险丝熔断 改进分析
Analysis And Improvement Of Electronic Vacuum Pump Fuse
Ye Mingrui Xin Qingfeng Li Hang Jia Baoguang Sun Fulu Hu Zhigang
Abstract:With the increasingly stringent requirements of environmental protection, the national and local encouragement and support for new energy vehicles promote the purchase demand of new energy vehicles. In 2021, the sales volume of new energy vehicles reached 1.367 million, a record high. As the only vacuum source of pure electric vehicle, the electronic vacuum pump is the most important component in the braking system. If it fails, it will not be able to provide vacuum assistance, which reduces the braking safety. At the same time, it is very easy for passengers to complain. This paper makes a comprehensive analysis of the fuse failure of the electronic vacuum pump in the braking system of a certain model, and thoroughly solves the failure through improvement to provide technical support for the development of platform models!
Key words:electronic vacuum pump, fuse blown, improvement analysis
1 前言
汽車在上市前会进行多轮性能和耐久测试,以确保各项性能满足法规标准和应用市场中不同顾客的需求。电子真空泵零件也会经过相应的试验测试,检验其单体性能的满足性,确保整车与零件均能满足各种工况要求,叶片式电子真空泵主要由电机、定子、转子和叶片组成,通过电机的转动带动泵腔的叶片与转子旋转使真空助力器真空腔和真空管中的的空气排出系统,从而形成压差,达到制动助力的效果。如电子真空泵出现故障或者控制电路出现异常,驾驶员踩踏板后,空气由空气阀进入工作腔,踏板回位后,助力器的真空腔与工作腔联通,两腔真空消耗,如未继续将空气排出真空系统,真空助力的效果就降低,甚至无助力效果,某车型在试验过程中出现了保险丝熔断的故障,造成真空助力失效,存在安全隐患。……
