Publication detail

Operating Characteristics of a Timber Trailer with a Hybrid Drive

ZEMÁNEK, T. PROCHÁZKA, P. PAZDERA, I. MERGL, V. NERUDA, J. VÍTEK, O. ULRICH, R. STANĚK, L.

Original Title

Operating Characteristics of a Timber Trailer with a Hybrid Drive

Type

journal article in Web of Science

Language

English

Original Abstract

This paper deals with the design and operational evaluation of a timber tractor-trailer unit with a hybrid trailer drive. The source of electrical energy for the two induction motors driving the front wheels of the tandem trailer axle is a battery, which is recharged by an induction machine operating as a generator during periods of a lower demand for power from the tractor diesel engine. An electric drive was designed for the defined working cycle of the tractor-trailer unit, and its loading characteristics were tested in the laboratory. The parameters measured on the field tests during timber forwarding were battery voltage and power, and the energy balance. Three adjustment levels of the potentiometer controlling the trailer hybrid drive (50, 75 and 100%) were tested at three different forwarding distances of 100, 500 and 1000 m. Additionally, any slippage of the prime mover wheels and trailer was measured. The maximum peak power taken from the battery was ca. 33 kW during the field tests, whilst the drive was able to deliver a peak output of up to 72 kW for 10 s and permanently up to ca. 50 kW. Even in harsh terrain conditions, the electric drive assisted the combustion engine only when the loaded tractor-trailer unit was travelling uphill. The hybrid drive operation was sustainable for the whole working shift, without the need for recharging when the potentiometer was set to 50%. This appropriate setting of the potentiometer controlling the trailer's hybrid drive reduced the slipping of the driven wheels of the tractor-trailer unit whilst travelling uphill.

Keywords

tractor; timber trailer; hybrid drive; tractor-trailer unit

Authors

ZEMÁNEK, T.; PROCHÁZKA, P.; PAZDERA, I.; MERGL, V.; NERUDA, J.; VÍTEK, O.; ULRICH, R.; STANĚK, L.

Released

17. 8. 2022

Publisher

MDPI

Location

BASEL

ISBN

1999-4907

Periodical

Forests

Year of study

13

Number

8

State

Swiss Confederation

Pages from

1

Pages to

15

Pages count

15

URL

https://www.mdpi.com/1999-4907/13/8/1317/htm

BibTex

@article{BUT179343,
  author="Tomáš {Zemánek} and Petr {Procházka} and Ivo {Pazdera} and Václav {Mergl} and Jindřich {Neruda} and Ondřej {Vítek} and Radomír {Ulrich} and Luboš {Staněk}",
  title="Operating Characteristics of a Timber Trailer with a Hybrid Drive",
  journal="Forests",
  year="2022",
  volume="13",
  number="8",
  pages="15",
  doi="10.3390/f13081317",
  issn="1999-4907",
  url="https://www.mdpi.com/1999-4907/13/8/1317/htm"
}