Naslov
Experimental Characterization of Wet Clutch Friction Behaviors Including Thermal Dynamics

Autori
Ivanović, Vladimir ; Herold, Zvonko ; Deur, Joško ; Hancock, Matthew ; Assadian, Francis

Izvornik
SAE International journal of engines (1946-3936) 2 (2009), 1; 1211-1220

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
wet clutch; friction coefficient; thermal dynamics

Sažetak
Wet clutches are widely used in automotive systems. They are essential parts of automatic transmissions, modern All-Wheel-Drive systems or dual-clutch transmissions. Regardless of the area of application, a good knowledge of clutch friction behaviors is crucial for the clutch control system development. This paper considers two important factors of the wet clutch dynamics: coefficient of friction behavior and thermal dynamics. An Active Limited Slip Differential wet clutch with carbon fiber-based friction lining material is experimentally characterized by using a precise wet clutch setup. The characterization of the coefficient of friction behavior includes influence of clutch slip speed, applied force, and friction surface temperature. The clutch thermal dynamics is characterized based on the heat power balance law applied to the clutch separator plate with a variable heat transfer coefficient. The results of the thermal model experimental validation are presented, as well.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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