摘要
为提高电动汽车制动安全性和经济性,在考虑多种典型制动工况的前提下,以电动真空助力制动系统为研究对象,提出了电动真空助力系统的精细匹配流程和匹配方法。针对传统真空泵能耗浪费的问题,提出了以制动减速度为门限的电动真空泵控制策略。基于MATLAB/Simulink搭建了电动真空助力制动系统模型,通过3种典型制动工况和FTP-75工况对电动真空助力系统的有效性和经济性进行了验证。仿真结果表明:本文设计的电动真空助力系统在满足整车制动需求的前提下,以FTP-75工况为例,单工况下可节省工作时间约600 s,节省能量12512 J,行驶100 km可节省电量0.022 kW·h,可有效延长电动真空助力系统的工作寿命,具有一定的节能效果。
In order to improve the safety and economy of the electric vehicle,the electric vacuum assisted braking system was taken as the research object.Based on several typical braking conditions,the fine matching process and matching method for electric vacuum assist system were proposed.Aiming at the problem of energy consumption waste for traditional vacuum pumps,a control strategy for electric vacuum pumps with braking deceleration as the threshold was proposed.Based on MATLAB/Simulink,the model for electric vacuum assist system was built.The effectiveness and economy for the electric vacuum assist system were verified based on three typical braking conditions and the FTP-75 condition.The simulation results show that the electric vacuum assist system designed in this paper can meet the braking requirements.Taking the FTP-75 condition as an example,it can save working time 600 s and save energy 12512 J under single FTP-75 working condition.It can save 0.022 kW·h each 100 km.This can prolong the working life of electric vacuum assist system effectively and save a certain amount of energy.
作者
肖锦钊
杨坤
王治宝
王杰
李敏
陈玉
XIAO Jinzhao;YANG Kun;WANG Zhibao;WANG Jie;LI Min;CHEN Yu(School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo,Shandong 255000,China;Shangdong Leopard Automotive Holdings Ltd.,Zibo,Shandong 255130,China)
出处
《中国科技论文》
CAS
北大核心
2019年第10期1128-1133,1153,共7页
China Sciencepaper
基金
山东省重点研发计划项目(2018GGX105010)
国家自然科学基金资助项目(51605265)
关键词
电动汽车
电动真空助力系统
电机
匹配优化
逻辑门限值控制
electric vehicle
electric vacuum assist system
motor
matching optimization
logic threshold control
