基于多领域耦合的整车高温开空调经济性研究  

Research on Economy of Vehicle At High Temperature With Air Conditioning on Based on Multi-domain Coupling

作　　者：李敏 陈伟国 王爱国[1] 郭顺[1] LI Min;CHEN Weiguo;WANG Aiguo;GUO Shun(College of Automobile and Rail,Anhui Technical College of Mechanical and Electrical Engineering,Wuhu 241000,China;Research Center,Wuhu ACTECO Powertrain Co.,Ltd.,Wuhu 241000,China)

机构地区：[1]安徽机电职业技术学院汽车与轨道学院,安徽芜湖241000 [2]埃科泰克动力总成有限公司研发中心,安徽芜湖241000

出　　处：《太原学院学报（自然科学版）》2021年第3期47-53,共7页Journal of TaiYuan University:Natural Science Edition

基　　金：安徽省自然科学研究项目(KJ2020A1104);安徽机电职业技术学院汽车制造与装配技术专业群项目(2020zyq23)。

摘　　要：为研究高温环境下进气温度和空调对整车经济性的影响,综合考虑多领域耦合因素,搭建了多软件集成联合仿真模型。对某乘用车型开展了高温开空调工况经济性试验测试,并进行了仿真与试验经济性对比,误差基本在4%以内。在此基础上,预测了NEDC、WLTC和CLTC三种循环工况经济性表现,并对NEDC工况油耗进行了分解。结果表明:进气温度升高至50℃以上,发动机大负荷区燃油消耗率特性衰减高达20%;空调开启后,三种循环工况油耗增加了23%~31%,其中WLTC因怠速工况比例较低增幅为23%,NEDC工况平均油耗增幅为31%、怠速油耗增幅达42%;WLTC工况降温过程最慢。In order to study the influence of intake air temperature and air conditioning on the economy of the vehicle at high temperature,coupling factors of various domains were comprehensively considered to build a multi-software integrated co-simulation model.The economy performance for a passenger vehicle at high temperature with the air conditioning system on was tested,and a simulation and test economic comparison were carried out,with the error rate basically within 4%.Based on this,the economy performance of NEDC,WLTC and CLTC driving cycles were predicted,and the fuel consumption of NEDC was decomposed.The results show that when the intake air temperature rose at above 50℃,the property of the engine’s fuel consumption rate in the high-load area reduced as much as 20%;with the air conditioning on,the fuel consumption of three cycles increased by 23%to 31%,in which WLTC increased by 23%due to the low proportion of idle speed conditions,the average increase in fuel consumption under NEDC was 31%,and the increase in idle fuel consumption reached to 42%;the cooling process of WLTC was the slowest.

关 键 词：高温 多领域联合仿真 空调 驾驶循环 

分 类 号：U463.6[机械工程—车辆工程]