Search for parameters of the power plant of the re-equipped vehicles

Abstract

Nowadays, the need to use wheeled vehicles with zero emissions, the share of such vehicles is growing rapidly in developed countries. At the same time, existing re-equipped vehicle with internal combustion engines, have a significant number around the world, create a major environmental problem. One way to overcome this problem is to convert them into hybrid or electric vehicles with lower emissions. In Ukraine, such re-equipment is very often done by owners of old vehicles, and there are no recommendations on its feasibility.

The lack of a method for calculating the performance of re-equipped vehicles complicates this process, so the development of such a method is an urgent task. The method involves compiling a mathematical model of the movement of vehicles with different types of power plants and different layout schemes. The layout scheme of a hybrid power plant of parallel type is considered in this article. The front axle is driven by the internal combustion engine, the rear by the motor. The method of Lagrange equations was used to compile the equations of motion. As a generalized coordinate, the angular displacement of the motor shaft is considered, to which the parameters of all mechanical elements of the vehicle are given, in accordance with its layout.

Theoretical research of energy properties of the re-equipped vehicle in the conditions of movement of Kyiv is carried out. According to the results of processing the value of the speed of movement, the law of its distribution and its parameters are established. The obtained data were used in the calculations according to the proposed method and the value of the speed for the transition to the movement of the internal combustion engine was determined and the power distribution between the power elements of the power plant was established.

Key words: hybrid vehicles, electromobile, re-equipped, efficiency, mathematical model, power plant, experiment.