Transient multiphysical modeling for a variable load

Currently, the car industry wishes to particularize the topological evolutions to take into account on the mechatronic systems introduced in the cars. Moreover, the car manufacturers stress on the necessity to forecast the transient thermal and electrical behaviours for long courses of functioning or particular surrounding evolutions. The authors of this article point out on a developed multiphysical model (thermal and electromechanical) of the actuator. It has been obtained with the Matlab software and permits obtaining functions of the current, the rotation speed and the temperatures with the load and the time. A comparison between simulation and experiment tests was carried out for several profiles of load and for different surrounding temperatures (-10degC, 23degC and 60degC).