Method of synthesis of patterns of power distribution between the driving wheels of all-wheel drive agricultural vehicles

Abstract

BACKGROUND: All-wheel drive trucks, capable of interacting with various machines and units, performing operations in off-road conditions and on public roads, are needed for the development of agriculture, which plays an important role in the country’s economy. The experience of their operation at agricultural enterprises shows that current power distribution systems in drivetrains does not consider the full range of factors affecting the motion of vehicles, which decreases the efficiency of their use.

AIM: Development of the method of synthesis of patterns of power distribution between the driving wheels of all-wheel drive agricultural trucks.

METHODS: Based on methods of system analysis, multiobjective optimization, regression and correlation analyses, the step-by-step method of synthesis of basic patterns of power distribution between the driving wheels of an all-wheel drive car and their adaptation to real driving conditions is proposed. Fundamentals of the study are basic patterns of power distribution, adopted to operation conditions of a all-wheel drive truck.

RESULTS: The method of synthesis of power distribution patterns is considered step-by-step, based on multiobjective optimization. The design and operational factors that set the parameters of traffic on roads of all types and terrain have been established. The basic patterns of power distribution that ensure the efficiency, reliability and safety of a vehicle are revealed. Depending on the functions, all-wheel drive trucks are conditionally divided into 4 groups with their own indicators and performance criteria. Based on the conducted study, 4 optimization problems are formulated.

CONCLUSIONS: The authors have developed the method for determining the patterns of power distribution between the driving wheels of all-wheel drive trucks and their adaptation to traffic conditions. The main stages of the method are: formulation of the optimization problem; computational procedure and determination of basic patterns of power distribution; adaptation of the basic patterns and evaluation of effectiveness of solutions. It is found that it is sufficient to use the differential equations of straight-line motion when simulating the motion of all-wheel drive trucks along the route.

Keywords

motor transport / trucks / all-wheel drive vehicles / agricultural vehicles / driving wheels of all-wheel drive vehicles / drivetrain of all-wheel drive vehicles / power distribution systems of all-wheel drive vehicles / controlled power distribution in drivetrain

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Funding

Министерства науки и высшего образования РФMinistry of Science and Higher Education of the Russian Federation(FZRR-2023-0007)

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