A4 Conference proceedings

Off-Terrain Heavy-Duty Vehicle Hybridization


Publication Details
Authors: Gerami Tehrani Mohammad, Sopanen Jussi
Publication year: 2015
Language: English
Title of parent publication: International Forum-Contest of Young Researchers “Topical Issues of Rational Use of Natural Resources”
JUFO-Level of this publication:
Open Access: Not an Open Access publication

Abstract
The architecture of conventional heavy off-road vehicle drive line is based on diesel engines and hydraulic pump/motor as power transmission that is capable of producing consistent and steady output power regardless of engine relative irregular operation. The efficiency of hydraulic pump/motor drops at high torque operation when the operation speed is high. In other words, the hydraulic power transmission alone is not suitable for high speed operation e.g. transportation. Modern agricultural tractors have either continuously variable transmissions (CVT) or electrically controlled gear shifting (powershift). In both cases hydraulics is present and transmissions include many wet sliding clutches. Efficiency of this kind of transmissions is also quite poor even though the main power line is mechanical. On the other hand, with this arrangement it is quite easy to get a wide operational range so that optimal speed can be found for every task of the vehicle.

Projects
Drive! (01/01/2015 - 31/08/2015)

Last updated on 2017-27-03 at 11:35