Friction and stick-slip durability testing of ATF
Friction and stick-slip durability testing of ATF
- New search for: Ward, W.C. jun.
- New search for: Sumiejski, J.L.
- New search for: Castanien, C.J.
- New search for: Taglijamonte, T.A.
- New search for: Schiferl, E.A.
- New search for: Ward, W.C. jun.
- New search for: Sumiejski, J.L.
- New search for: Castanien, C.J.
- New search for: Taglijamonte, T.A.
- New search for: Schiferl, E.A.
Recent commerical specification revisions for automatic transmission fluids (ATFs) have focused upon more stringent friction requirements. More stringent friction durability characteristics are assessed using the SAE No. 2 tester. The commercial specifications do not include provisions to evaluate low speed friction characteristics, which have been shown to relate to torque converter shudder. This paper focusses upon effectived use of the Falex 6 Multispecimen tester to evaluate friction durability characteristics were effectively differentiated for a number of field ATFs. Falex 6 testing coupled with LVFA testing was shown to correlate with field experience and other test methods related to torque converter shudder. Finally, a Variable Speed Friction Tester (VSFT) was developed to improve test method continuity and improve test quality.
Document information
Friction and stick-slip durability testing of ATF
Reibungs- und Ruck-Gleiten-Beständigkeitsmessung vom Automatikgetriebeöl
SAE Technical Papers ; 1-20
1994
20 Seiten, 19 Bilder, 8 Tabellen, 14 Quellen
Conference paper
English
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