Pems tests of city-permitted bus and cityforbidden heavy-duty truck were conducted respectively. Vehicle velocity distribution and acceleration distribution of Pems tests and China heavyduty 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 heavyduty 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 heavyduty truck between -2.7 kW/t and 2.7 kW/t.
YU Jintao
,
XIONG Xingwang
,
LIU Jiawei
,
ZHANG Fan
,
LI Liang
. Comparison between Pems Test Cycle and China Heavy-Duty Commercial Vehicle Test Cycle[J]. Vehicle Engine, 2020
, 0(5)
: 80
-86
.
DOI: 10.3969/j.issn.1001-2222.2020.05.013
