Simulation Models of Skidder Conventional and Hybrid Drive

Juraj Karlušić; Mihael Cipek; Danijel Pavković; Juraj Benić; Željko Šitum; Zdravko Pandur; Marijan Šušnjar

doi:10.3390/f11090921

Forests (Aug 2020)

Simulation Models of Skidder Conventional and Hybrid Drive

Juraj Karlušić,
Mihael Cipek,
Danijel Pavković,
Juraj Benić,
Željko Šitum,
Zdravko Pandur,
Marijan Šušnjar

Affiliations

Juraj Karlušić: Department of Robotics and Production System Automation, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, Croatia
Mihael Cipek: Department of Robotics and Production System Automation, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, Croatia
Danijel Pavković: Department of Robotics and Production System Automation, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, Croatia
Juraj Benić: Department of Robotics and Production System Automation, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, Croatia
Željko Šitum: Department of Robotics and Production System Automation, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, 10000 Zagreb, Croatia
Zdravko Pandur: Forest Engineering Institute, Faculty of Forestry, University of Zagreb, 10000 Zagreb, Croatia
Marijan Šušnjar: Forest Engineering Institute, Faculty of Forestry, University of Zagreb, 10000 Zagreb, Croatia

DOI: https://doi.org/10.3390/f11090921
Journal volume & issue: Vol. 11, no. 9
p. 921

Abstract

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The paper presents a hypothetical conversion of a conventional cable skidder powertrain to its hybrid version. Simulations of skidder operation were made for two existing forest paths, based on the technical characteristics of the engine, transmission system and the characteristics of the winch. Fuel and time consumption were calculated per working cycle considering the operating conditions (slope, load mass). The model was then converted to a hybrid version by adding a battery energy storage system in parallel with the electrical power generator and by employing an energy management control strategy. The dimensions of the battery and the power generator were chosen based on the characteristics of the existing winch with the aim of completely taking over its operation. The management strategy was selected using the specific fuel consumption map. All simulations were repeated for the hybrid drive under the same operating conditions. The results show that fuel savings of around 13% can be achieved with the selected hybrid drive and steering strategy.

Published in Forests

ISSN: 1999-4907 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Botany: Plant ecology
Website: http://www.mdpi.com/journal/forests/

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