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Technical Brief

Design and Analysis of a Novel Power-Split Infinitely Variable Power Transmission System

[+] Author and Article Information
Ender Ince

Ph.D. Student, Student Member of ASME, Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara, Turkey 06560; TurkTraktor R&D Department, Ankara, Turkey 06560
eince@etu.edu.tr

Mehmet A. Guler

Professor, Member of ASME, Department of Mechanical Engineering, TOBB University of Economics and Technology, Ankara, Turkey 06560
mguler@etu.edu.tr

1Corresponding author.

ASME doi:10.1115/1.4041783 History: Received June 18, 2018; Revised October 14, 2018

Abstract

In the last few decades, power-split infinitely variable transmission systems have attracted considerable attention as they ensure high driving comfort with high total efficiencies, especially in off-highway vehicles and agricultural machines. In this study, a novel power-split-input-coupled infinitely variable transmission (IVT) system is developed. The effects of various dynamic parameters such as power flow and Willis transmission ratio on the mechanical efficiency of the systems are investigated. Kinematic analysis of the new system has been carried out. In addition power flow equations are derived as functions of the power that flows through the infinitely variable unit (IVU). The results indicate that the main parameters, which are strictly related to mechanical efficiency are the power and torque flows through the IVU.

Copyright (c) 2018 by ASME
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