Title: Shift speed control in CVT powertrain

Authors: Jaroslaw Mamala, Jerzy Jantos

Addresses: Faculty of Mechanical Engineering, Opole University of Technology, ul. Mikolajczyka 5, 45-271 Opole, Poland. ' Faculty of Mechanical Engineering, Opole University of Technology, ul. Mikolajczyka 5, 45-271 Opole, Poland

Abstract: Continuously Variable Transmission (CVT) is associated with a need to solve the problem of the selection of drive train ratio in the vehicle. For the case of a considerable range of the drive train ratio the power delivered to the driven wheels is affected by the mechanical inertia of the rotating mass associated with the crankshaft. The theoretical considerations in this paper as well as the analysis of the results of research clearly indicate the need of accounting for shift speed in the CVT control algorithm.

Keywords: CVT powertrain; drive train ratio; vehicle design; shift speed control; continuously variable transmission; mechanical inertia; rotating mass; crankshaft.

DOI: 10.1504/IJVD.2010.034868

International Journal of Vehicle Design, 2010 Vol.54 No.1, pp.26 - 34

Received: 01 Apr 2009
Accepted: 21 Sep 2009

Published online: 26 Aug 2010 *

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