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

YU Jintao; XIONG Xingwang; LIU Jiawei; ZHANG Fan; LI Liang

doi:10.3969/j.issn.1001-2222.2020.05.013

Vehicle Engine ›› 2020, Vol. 0 ›› Issue (5) : 80-86. DOI: 10.3969/j.issn.1001-2222.2020.05.013

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

YU Jintao^1,2,XIONG Xingwang²,LIU Jiawei²,ZHANG Fan²,LI Liang²

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Abstract

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.

Key words

Pems test / test cycle / vehicle velocity / acceleration / specific power

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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 https://doi.org/10.3969/j.issn.1001-2222.2020.05.013