基于发动机在环的重型车PEMS测试方法研究  

Research on PEMS Testing Method of Heavy-duty Vehicle Based on Engine-in-the-loop

作　　者：郑春芳 李腾腾 汪晓伟 Zheng Chunfang;Li Tengteng;Wang Xiaowei(China Auto Research Center(Tianjin)Co.,Ltd.,Tianjin 300300)

机构地区：[1]中汽研汽车检验中心(天津)有限公司,天津300300

出　　处：《汽车实用技术》2020年第9期189-192,198,共5页Automobile Applied Technology

摘　　要：为了重型车PEMS测试排放结果满足国六法规要求,文章基于发动机在环系统对重型车PEMS试验方法进行研究。通过对驾驶员模型换挡策略的研究使VSM模拟工况与实际道路PEMS工况分布一致。经过对试验结果对比分析,发动机在环测试系统油耗及排放水平能达到与实际道路试验相近的测试结果。发动机在环平台可以实现PEMS循环重复性测试,减少实车测试次数和风险,缩短整车正向开发周期。In order to meet the requirement of the ChinaⅥemission regulation on heavy-duty vehicles PEMS test emission.In this paper,a PEMS test method is researched based on engine in-the-loop.By studying of the shift strategy of the model,the distribution of VSM operating condition and the actual road PEMS operating condition is consistent.The test result shows that the result of fuel consumption and emission of engine in-the-loop nearly reaches the result of the actual road test.The repetitive test of PEMS can be realized on the platform of engine in-the-loop,which can reduce the test times and the risks of the real vehicle and shorten the forward development cycle of the vehicle.

关 键 词：发动机在环 PEMS 换档策略 重复性测试 

分 类 号：U463.8[机械工程—车辆工程]