Study of the Energy Conversion Process in the Electro-Hydrostatic Drive of a Vehicle

Wiesław Grzesikiewicz , Lech Knap , Michał Makowski , Janusz Pokorski

Abstract

In 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.
Author Wiesław Grzesikiewicz (FACME / IAE)
Wiesław Grzesikiewicz,,
- Institute of Automotive Engineering
, Lech Knap (FACME / IAE)
Lech Knap,,
- Institute of Automotive Engineering
, Michał Makowski (FACME / IAE)
Michał Makowski,,
- Institute of Automotive Engineering
, Janusz Pokorski (FACME / IAE)
Janusz Pokorski,,
- Institute of Automotive Engineering
Journal seriesEnergies, ISSN 1996-1073, (A 25 pkt)
Issue year2018
Vol348
No11
Pages1-22
Publication size in sheets1.05
Keywords in EnglishNumerical simulations, hybrid drive, electric drive, hydrostatic drive, energy consumption, energy efficiency, regenerative braking, city traffic
DOIDOI:10.3390/en11020348
URL www.mdpi.com/journal/energies
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); after publication
Score (nominal)25
ScoreMinisterial score = 25.0, 24-03-2018, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 24-03-2018, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 2.262 (2) - 2016=2.707 (5)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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