Article

Received 03.09.2021

Revised 03.01.2022

Accepted 15.02.2022

Retrieved from Vol. 26, No. 1, 2022

Pages 3 -10

Al-Ammouri, A., Ishchenko, R., & Verkhovetska, І. (2022). Calculation of power balance of electric car during uniform movement. The National Transport University Bulletin, 26(1), 3-10. https://doi.org/10.33744/2308-6645-2022-1-51-003-010

Calculation of power balance of electric car during uniform movement

Ali Al-Ammouri Ruslan Ishchenko І. Verkhovetska

In this paper the equation of the power balance of the electric car during uniform movement is received. The key variable in the power balance equation is the speed of the electric car. The object of the study – power balance of the electric car during uniform movement. Purpose of the study – investigation of the balance of power of the electric car during uniform movement and establishment of dependence of values of powers of the electric motor which are spent on overcoming of force of resistance to rolling and force of resistance of air on speed of movement of the electric car. Method of the study – for the purpose of the study, the following methods were used: analysis, synthesis, systematization, generalization, formulation of conclusions. In this work the power balance of the Nissan Leaf electric car during uniform movement is calculated. It is established that during the uniform movement of the electric car at a speed of up to 40 km/h the main power consumption of the electric motor is aimed at overcoming the rolling resistance. During the steady movement of the electric car at a speed exceeding 40 km/h, the power consumption of the electric motor aimed at overcoming the force of air resistance also becomes significant. The results of the article can be used in the development of effective control systems for electric car and the selection of the optimal driving style of the specified vehicle. Also, the results of the work can be introduced into the educational process during the teaching of disciplines of the cycle of professional training of future specialists in the transport industry. Forecast assumptions about the object of study – consideration of the method of obtaining additional electrical energy during mechanical vibrations of the electric car that occur during its movement.

 

electric car; power balance; uniform movement; force of rolling resistance; force of air resistance
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https://doi.org/10.33744/2308-6645-2022-1-51-003-010