This study contributes to the development of a systematic methodology for the torque and power-flow analyses of multi-input multi-output (MIMO) epicyclic gear mechanisms (EGMs) with or without reaction link based on the concept of fundamental circuit. The studies on power-flow analysis of EGMs are mostly done in the context of efficiency formulations. In the opinion of the authors, the design process of the MIMO mechanism involves not only finding the configuration that provides the correct velocity ratios but also meeting other kinematic requirements and ensuring that the two inputs have a mutually constructive nature. To demonstrate the analysis, a new motor/generator integrated hybrid transmission design is used to show how the torque acting on each link of an epicyclic gear train (EGT) can be systematically solved in terms of input torque(s) and/or controlled output torque. This paper presents a unification of kinematic and torque balance approaches for the analysis of MIMO epicyclic-type transmission trains. The results presented are meant to deepen the knowledge as to how and why a MIMO epicyclic-type transmission should operate in a certain way under the given conditions. In the process, this paper explores the theoretical bases of operation of the Toyota Hybrid System and the root cause of some confusion in the field of EGTs.
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e-mail: shaker.sakran@yahoo.co.uk
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January 2010
Research Papers
An Approach to Power-Flow and Static Force Analysis in Multi-Input Multi-Output Epicyclic-Type Transmission Trains
Essam L. Esmail,
Essam L. Esmail
Assistant Professor
Department of Mechanical Engineering,
e-mail: dr.essamesmail@yahoo.com
Technical Institute of Diwaniya
, Diwaniya, Iraq (0964)
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Shaker S. Hassan
Shaker S. Hassan
Associate Professor
Department of Mechanical Engineering,
e-mail: shaker.sakran@yahoo.co.uk
University of Technology
, Baghdad, Iraq
Search for other works by this author on:
Essam L. Esmail
Assistant Professor
Department of Mechanical Engineering,
Technical Institute of Diwaniya
, Diwaniya, Iraq (0964)e-mail: dr.essamesmail@yahoo.com
Shaker S. Hassan
Associate Professor
Department of Mechanical Engineering,
University of Technology
, Baghdad, Iraqe-mail: shaker.sakran@yahoo.co.uk
J. Mech. Des. Jan 2010, 132(1): 011009 (10 pages)
Published Online: December 31, 2009
Article history
Received:
April 6, 2009
Revised:
October 26, 2009
Online:
December 31, 2009
Published:
December 31, 2009
Citation
Esmail, E. L., and Hassan, S. S. (December 31, 2009). "An Approach to Power-Flow and Static Force Analysis in Multi-Input Multi-Output Epicyclic-Type Transmission Trains." ASME. J. Mech. Des. January 2010; 132(1): 011009. https://doi.org/10.1115/1.4000644
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