重型车Pems试验工况与中国工况对比研究  

Comparison between Pems Test Cycle and China Heavy-Duty Commercial Vehicle Test Cycle

作　　者：于津涛 熊兴旺[2] 刘嘉伟[2] 张凡 李梁[2] YU Jintao;XIONG Xingwang;LIU Jiawei;ZHANG Fan;LI Liang(Tianjin University,Tianjin 300072,China;China Automotive Technology&Research Center Co.,Ltd,Beijing 100176,China)

机构地区：[1]天津大学,天津300072 [2]中国汽车技术研究中心有限公司,北京100176

出　　处：《车用发动机》2020年第5期80-86,共7页Vehicle Engine

摘　　要：针对一辆城市客车和一辆非城市货车进行了Pems试验,对比了Pems试验工况与中国工况的速度分布、加速度分布。结果表明:Pems客车试验工况中,速度分布存在4个峰值区间,加速度分布存在2个峰值区间;CHTC-B工况中,速度分布存在1个峰值区间,加速度分布存在1个峰值区间。Pems货车试验工况中,速度分布存在4个峰值区间,加速度分布存在2个峰值区间;CHTC-HT工况中,速度分布存在1个峰值区间,加速度分布存在3个峰值区间。对比功率计算式的系数进行了标定,并对比了Pems试验工况和中国工况的比功率分布。结果表明,在比功率[-2.7,2.7]区间内,Pems客车试验工况比功率分布为双峰曲线,CHTC-B工况为单峰曲线;Pems货车试验工况比功率分布为双峰曲线,CHTC-HT工况为单峰曲线。Pems tests of city-permitted bus and city-forbidden heavy-duty truck were conducted respectively.Vehicle velocity distribution and acceleration distribution of Pems tests and China heavy-duty commercial vehicle test cycles were then compared.The results show that there are 4 peak intervals for velocity distribution and 2 peak intervals for acceleration distribution in the Pems test of bus,compared with 1 peak interval for velocity and acceleration distribution respectively in the CHTC-B cycle.For the truck,the velocity and acceleration distributions show 4 and 2 peak intervals in the Pems test and 1 and 3 peak intervals in the CHTC-HT cycle.Coefficients of the formula used to calculate vehicle specific power are calibrated.Vehicle specific power distribution of Pems tests is further compared to that of China heavy-duty commercial vehicle test cycle.According to the results,the vehicle specific power distribution curves have double peaks in the Pems test and one peak in the CHTC-B cycle and CHTC-HT cycle for both bus and heavy-duty truck between-2.7 kW/t and 2.7 kW/t.

关 键 词：Pems试验 试验循环 车速 加速度 比功率 

分 类 号：TK427[动力工程及工程热物理—动力机械及工程]