Influence of operating parameters on the vibration reduction effect in the wet-running clutch system

Wet clutch systems will be present in many powertrain topologies also in the future, not only in automotive engineering, but also in many other areas, partly due to increasing hybridization and automation of transmissions. An extension of the system's functions in addition to its main function, e.g. using the system for vibration reduction, is therefore all the more suitable. The additional use of the wet-running clutch as an actuator for vibration reduction makes it possible to reduce conventional vibration-reducing components in terms of packaging space and mass. The modern wet-running clutch system also offers a major advantage over conventional components of being able to set and control vibration reduction on demand. In this publication, regression models for describing the vibration reducing effect through rating values as a function of operating variables e.g. slip speed are determined empirically for one tribological system. Conclusions about scaling and the validation of the models are worked out. In addition to the vibration reduction effect, energy dissipation in the clutch system during slip operation is also considered. The obtained models support a targeted configuration of future clutch systems for an on demand vibration reduction in controlled slip operations with taking into account the objective of comfort vs. efficiency.