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Analysis of Driving Conditions for Light-Duty Cargo Vehicles
DING Wenjun1
, ZHANG Jingjing1
, YAO Xu1
, XU Yi1
, HAN Peng2
2025, 50(15):
102-108.
DOI: 10.16638/j.cnki.1671-7988.2025.015.018
To enhance the testing accuracy of fuel consumption for light-duty cargo vehicles under
driving conditions, this article proposes a research approach to construct driving conditions under
different loads and road types. Firstly, a test system is constructed to obtain information such as the
engine electronic control unit (ECU), speed and driving trajectory, vehicle posture and fuel
consumption rate. Secondly, based on the roads in Hefei city and its surrounding counties and cities,
test routes covering urban areas, urban-rural areas, mountain roads and expressways are selected.
Secondly, road tests and data processing are carried out. Road tests are conducted under no-load,
half-load, 75% load and full load conditions. A total of 29 criteria, including fuel consumption,vehicle speed distribution and acceleration distribution, are designed. The driving conditions
including slope and gear position information are constructed by using the short-stroke method and
the fixed-step method. Finally, after nearly a hundred rounds of chassis dynamometer tests and
adjustments to the operating condition curves, the comprehensive fuel consumption accuracy of the
four loads under driving conditions is within 5%. Therefore, the research method for the driving
conditions of light-duty cargo vehicles proposed in the article is feasible and has certain reference
value for the research on the working conditions of similar commercial vehicles.
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