Study of the Energy Conversion Process in the Electro-Hydrostatic Drive of a Vehicle
Wiesław Grzesikiewicz , Lech Knap , Michał Makowski , Janusz Pokorski
AbstractIn the paper, we describe a study of an electro-hydrostatic hybrid drive of a utility van intended for city traffic. In this hybrid drive, the electric drive is periodically accompanied by hydrostatic drive, especially during acceleration and regenerative braking of the vehicle. We present a mathematical model of the hybrid drive as a set of dynamics and regulation equations of the van traveling at a given speed. On this basis, we construct a computer program which we use to simulate the processes of energy conversion in electro-hydrostatic drive. The main goal of the numerical simulation is to assess the possibility of reducing energy intensity of the electric drive through such a support of the hydrostatic drive. Our results indicate that it is possible to significantly increase the efficiency of energy conversion in the electric drive by support of the hydrostatic drive.
|Journal series||Energies, ISSN 1996-1073|
|Publication size in sheets||1.05|
|Keywords in English||Numerical simulations, hybrid drive, electric drive, hydrostatic drive, energy consumption, energy efficiency, regenerative braking, city traffic|
|License||Journal (articles only); published final; ; after publication|
|Score||= 25.0, 23-01-2020, ArticleFromJournal|
|Publication indicators||= 1; = 2; : 2018 = 1.156; : 2018 = 2.707 (2) - 2018=2.99 (5)|
* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.