This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Fluid Model Extension of the Torque Converter into the Overrunning Regime
Technical Paper
2014-01-1752
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
The introduction of parallel post transmission hybrid electric vehicles has demonstrated a limitation of previous mathematical models of the hydraulic torque converter. Earlier models developed by Hrovat and Tobler (2) and Kotwicki (4) in the 1980's only covered the cases of the below coupled and coupled states without anticipating the need to analyze the converter in the overrunning case. This study develops the relations for the overrunning case, allowing the reader to establish accurate predictions or computer simulations of the flow, torque, and speeds that will be result in the case of a post transmission hybrid system. Without additional measures, these post transmission hybrid systems will generate large fluid losses in the torque converter.
Authors
Topic
Citation
Pritchard, E., Gould, R., and Johnson, R., "A Fluid Model Extension of the Torque Converter into the Overrunning Regime," SAE Technical Paper 2014-01-1752, 2014, https://doi.org/10.4271/2014-01-1752.Also In
References
- Avallone , Eugene A. et al. Marks' Standard Handbook for Mechanical Engineers 11th New York McGraw-Hill 2007
- Hrovat , D. , and Tobler W. E. Bond Graph Modeling and Computer Simulation of Automotive Torque Converters Journal of the Franklin Institute 319 1-2 1985 93 114
- Ishihara , T. , and Emori R. I. Torque Converter as a Vibrator Damper and its Transient Characteristics 1966 501
- Kotwicki , A. Dynamic Models for Torque Converter Equipped Vehicles SAE Technical Paper 820393 1982 10.4271/820393
- Lawrence , J. , Klang E. , Pritchard E. Torque Converter Predictive Modeling Validation in a Post Transmission Parallel Hybrid Drive Train NCSU Electronic Theses and Dissertations Raleigh, NC December 2012
- Pritchard , E. , Gould R. D. , and Johnson R. R. Torque converter interactions in a parallel post transmission hybrid driveline Vehicle Power and Propulsion Conference (VPPC.) Chicago, Illinois September 2011
- Pritchard , E. , and Johnson R. R. Technical Performance Modeling of Hybrid and Plug-in Hybrid Electric School Buses using ADVISOR International Mechanical Engineering Conference and Exhibition Orlando, Florida November 2005