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Dynamic Modeling of the Traveling Chain Transmission

[+] Author Affiliations
Norman K. Bucknor

General Motors R&D Center, Warren, MI

Paper No. DETC2004-57081, pp. 231-240; 10 pages
  • ASME 2004 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 28th Biennial Mechanisms and Robotics Conference, Parts A and B
  • Salt Lake City, Utah, USA, September 28–October 2, 2004
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 0-7918-4695-4 | eISBN: 0-7918-3742-4
  • Copyright © 2004 by ASME


The Traveling Chain Transmission (TCT) is a novel two-speed chain drive developed at the General Motors R&D Center [1]. In order to predict potential performance and develop design requirements, a multi-body dynamic model of the Traveling Chain Transmission (TCT) was developed and validated using dynamometer test data from the first TCT prototype hardware. A vehicle drivetrain model incorporating the TCT as part of a multi-speed transmission was also developed in order to study the potential performance of the TCT in a vehicle environment. The simulated transmission is a nominal 4-speed automatic transmission converted to a 5-speed transmission by replacing the fixed speed-ratio drop chain by the dual speed-ratio TCT. An upshift from 4th to 5th gear is simulated and the resulting torque and speed transients are predicted.

Copyright © 2004 by ASME



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