Naslov
Experimental Characterization and Modeling of Dry Dual Clutch Wear

Autori
Hoić, Matija ; Kranjčević, Nenad ; Herold, Zvonko ; Deur, Joško ; Ivanović, Vladimir

Izvornik
SAE International journal of passenger cars. Mechanical systems (1946-3995) 7 (2014), 1; 326-337

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

Ključne riječi
dry dual clutch; wear; experimental characterization; modeling

Sažetak
Clutch wear is dominantly manifested as the reduction of friction plate thickness. For dry dual clutch with positioncontrolled electromechanical actuators this affects the accuracy of normal force control because of the increased clutch clearance. In order to compensate for the wear, dry dual clutch is equipped with wear compensation mechanism. The paper presents results of experimental characterization and mathematical modeling of two clutch wear related effects. The first one is the decrease of clutch friction plate thickness (i.e. increase of clutch clearance) which is described using friction material wear rate experimentally characterized using a pin-on-disc type tribometer test rig. The second wear related effect, namely the influence of the clutch wear compensation mechanism activation at various stages of clutch wear on main clutch characteristics, was experimentally characterized using a clutch test rig which incorporates entire clutch with related bell housing. Finally, the previously proposed and experimentally validated physical clutch model, which was focused on the clutch actuator and axial dynamics, is extended to capture both wear related effects as a further step towards a more comprehensive overall clutch dynamics model.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

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