Slipping Torque Converter Clutch Interface Temperature, Pressure and Torque Measurements Using Inductively Powered Radiotelemetry

970679

02/24/1997

Event
SAE International Congress and Exposition
Authors Abstract
Content
Torque converter clutch friction interface and automatic transmission fluid (ATF) temperatures, pressure difference across the clutch piston, flow through the friction material grooves, and engine crankshaft dynamic torque were measured for typical operating conditions on a running transmission. The friction coefficient, clutch unit pressure, fraction of heat rejected to ATF flowing through the grooves, and time dependent thermal response were determined. Simplified heat transfer calculations were compared with thermal data. Clutch interface temperatures were assessed as they relate to the process of friction material and ATF degradation. The inductively powered radiotelemetry system was found to be a robust and powerful tool for investigating continuously slipping clutch system performance.
Meta TagsDetails
DOI
https://doi.org/10.4271/970679
Pages
15
Citation
Throop, M., and McWatt, D., "Slipping Torque Converter Clutch Interface Temperature, Pressure and Torque Measurements Using Inductively Powered Radiotelemetry," SAE Technical Paper 970679, 1997, https://doi.org/10.4271/970679.
Additional Details
Publisher
Published
Feb 24, 1997
Product Code
970679
Content Type
Technical Paper
Language
English