Simulation and experimental validation of the dynamic behavior of an electromechanically actuated multiple-disk clutch

Abstract

Automated multiple-disk clutches in automotive drivelines are at present hydraulically or electrohydraulically actuated. The electromechanical clutch actuation represents an alternative. The subject of the investigation is a functional model of an electromechanical clutch actuator which consists of a servo motor, a reduction gear and a mechanism for the realization of the force acting on the disks. For the simulation of the dynamic behavior of the electromechanically actuated multiple-disk clutch a detailed multibody model is developed which includes models of the electromechanical actuator and the wet multiple-disk clutch. The multiple-disk clutch is described by coupled partial models for the rotational and translational dynamics. The coupling parameters are the relative disk distances and the forces between the disks. The results of test bench measurements are compared to simulation results. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)