Title: Parameter study of synchroniser mechanisms applied to Dual Clutch Transmissions

Authors: Paul D. Walker; Nong Zhang

Addresses: Faculty of Engineering and IT, University of Technology, Sydney, 15 Broadway, Ultimo, NSW 2007, Australia. ' Faculty of Engineering and IT, University of Technology, Sydney, 15 Broadway, Ultimo, NSW 2007, Australia

Abstract: The modelling, simulation and analysis of a synchroniser mechanism as a component of wet Dual Clutch Transmissions (DCT) is presented in this paper. Mechanism engagement is demonstrated using rigid body models with a detailed drag torque model, to establish its variation over the process. Dimensionless equivalent cone and chamfer torques are used to study the impact of drag torque from a design perspective, and parameter studies performed to verify this method. Outcomes suggest the high dependency of speed synchronisation on both cone angle and friction coefficient, while the chamfer torque are highly dependent on chamfer angle, but not friction coefficient.

Keywords: synchroniser mechanisms; synchromesh; drag torque; DCT; dual clutch transmission; parameter study; dimensionless torque; powertrains; modelling; simulation; speed synchronisation; cone angle; friction coefficient; chamfer torque; chamfer angle.

DOI: 10.1504/IJPT.2011.042768

International Journal of Powertrains, 2011 Vol.1 No.2, pp.198 - 220

Received: 04 Aug 2010
Accepted: 20 Jun 2011
Published online: 26 Feb 2015 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article