Dry clutch transmissibility


  • Adolfo Senatore, University of Salerno, Italy


Dry clutches are widely used in conventional and innovative automotive drivelines and represent a key element for automated manual transmissions (AMTs). In practical applications, it is fundamental to model the clutch behavior through its torque transmissibility characteristic, i.e., the relationship between the throwout bearing position (or the pressure applied by the clutch actuator) and the torque transmitted through the clutch during the engagement phase. In this research activity we study new models for the torque transmissibility of dry clutches. We analyze how the transmissibility characteristic depends on: friction pads geometry, cushion spring compression, cushion spring load, and slip-speed-dependent friction. Corresponding functions are suitably composed determining the torque transmissibility expression. An experimental procedure for tuning the characteristic parameters can be defined and suitable engagement control algorithms can be designed.

PhD Theses

  • ongoing

      • Claudio Cervone, PhD student in Automatic Control, University of Sannio, "Dry clutch modeling and control".

Laurea Magistralis Theses

  • 2013

      1. Rino Pica, LS Ingegneria dell'Automazione, marzo 2013, "Modelli di trasmissibilitĂ  per doppie frizioni a secco", 110 e lode.

  • 2012

      1. Giovanni Servodio, LS Ingegneria dell'Automazione, maggio 2012, "Studio della trasmissibilitĂ  per frizioni a secco in ambito automotive", 101, co-relatore ing. Claudio Cervone.

  • 2011

      1. Francesco Fabiano, LS Ingegneria dell'Automazione, marzo 2011, "Strategie di controllo per sistemi di trasmissione a doppia frizione", 110 e lode, co-relatore ing. Gabriella Reale.