Article

Received 02.09.2021

Revised 14.01.2022

Accepted 15.02.2022

Retrieved from Vol. 26, No. 1, 2022

Pages 234 -241

Kosharnyi, O., & Kosharny, М. (2022). Improving the fuel efficiency of the car by choosing the optimal weight of the road train. The National Transport University Bulletin, 26(1), 234-241. https://doi.org/10.33744/2308-6645-2022-1-51-234-241

Improving the fuel efficiency of the car by choosing the optimal weight of the road train

Oleksandr Kosharnyi М. Kosharny

The article considers the influence of the mass of a road train on its fuel economy. The object of research is road vehicles that are in operation. Research method – analysis of fuel efficiency of cars. The purpose of the work is to determine measures to increase the efficiency of vehicle use by reducing fuel consumption. When transporting goods by road, the issue of substantiation of the mass of road trains and their fuel consumption is relevant. When carrying out transportation, the fuel consumption of a road train is influenced by many factors, the main of which are: the weight of the road train, road conditions and traffic regime. The following indicators can be used to assess the efficiency of car use: amount of fuel per 100 km; amount of fuel per 1 tkm, etc. But the most objective indicator is the specific fuel consumption Qp, ie fuel consumption per 1 km, attributed to the unit of transport productivity of the road train, Pi (tkm / h). Calculations performed on the example of road trains in the tractors KrAZ-260 and IVECO-190.48 show that the specific fuel consumption on the route Qpp with a total coefficient of resistance in the range Ψp = 0.04-0.06 at a load weight Mv = 40t is 0.8 and 0.8 ml, respectively (tkm / year), and at Mv = 70t, Qpp = 8.5 and 2.5 (ml / (tkm / year)). The calculation of fuel consumption depending on the equipped weight of cars of different brands is compared, comparing KrAZ-6510 and DAF-2700 cars. To reduce the curb weight, you must, first of all, carefully analyze the layout and mass characteristics of all components and units, widely use lightweight and high-strength materials. The results of the article can be used in the operation and improvement of car design.

 

car equipment; fuel economy; movement resistance; fuel consumption; efficiency of operation
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https://doi.org/10.33744/2308-6645-2022-1-51-234-241