Research area and keywords of research:
Energy assessment of the transmission systems of tractors
(traction force change, power loss, slip change, swiching process)
Name of the researcher(s) and research group:
- Attila Szegedi assistant professor (head of the research group)
- Dr. Antal Lengyel PhD, college prof.
- Dr. Zoltán Kovács PhD, college prof.
- István Lajtos master instructor
Name of the Institute:
University of Nyíregyháza, Institute of Engineering and Agricultural Sciences, Department of Vehicle and Agricultural Engineering
Research objectives:
Our main goal was to investigate the losses of the drive chain.
The critical point is the gear changing procedure. The purpose of our work have done in this research area, to analyse the traction force changes in time by measuring the electric governor sign as well as the actuator hydraulic pressure.
Description and results of research:
We have analyzed the power loss losses in each gear at a stable equilibrium in steady- state traction. The measurement methods used and tools to track traction, speed, and slip changes during test time under. The large amount of measurement data provides a detailed analysis of the switching process. From the measured data it can be stated that the change of switching time and traction characteristics Known as important information on the operation point of view of tractors and other permanent mobile machines.
Research partners from other institutions:
Szent István University
Other information: -
Publications (max. 5):
- A. Lengyel – A. Szegedi (2013): Research of the energy losses of shifting process in Powershift transmissions. INTERNATIONAL MULTIDISCIPLINARY CONFERENCE, Nyíregyháza, 10th EDITION.
- A. Szegedi – A. Lengyel (2015) Examination of energetics relations of underload gear shifting Academic Journal of Manufacturing Engineering Vol. 13. Issue 4. p 44-51.
- A. Lengyel – A. Szegedi - Z. Kovács (2015): Research Of Energetic Relations Of The Under-load Gear Shifting Drive. INTERNATIONAL MULTIDISCIPLINARY CONFERENCE, Nyíregyháza, 11th EDITION.