Automatic Transmission Efficiency Characteristics and Gearbox Torque Loss Data Regression Techniques

930907

03/01/1993

Event
International Congress & Exposition
Authors Abstract
Content
This paper presents a general discussion of automatic transmission parasitic losses and efficiency characteristics.
Efficiency characteristics of the three major automatic transmission components-pump, torque converter, and gearbox-and their contribution to the transmission total torque losses are examined. A data reduction method for isolating gearbox torque losses from total transmission losses is also described.
The information presented is based on pump, torque converter, and transmission testing performed at SwRI for Ford Motor Company. Test data was used to perform analytical fuel economy benchmarking studies. Testing included 13 transmissions manufactured by American, European, and Japanese manufacturers for 3.0-5.8L truck applications.
Meta TagsDetails
DOI
https://doi.org/10.4271/930907
Pages
9
Citation
Kluger, M., and Greenbaum, J., "Automatic Transmission Efficiency Characteristics and Gearbox Torque Loss Data Regression Techniques," SAE Technical Paper 930907, 1993, https://doi.org/10.4271/930907.
Additional Details
Publisher
Published
Mar 1, 1993
Product Code
930907
Content Type
Technical Paper
Language
English