Control approach based on equivalent vehicle rotational inertia suitable for motor-dynamometer test bench emulation of electric vehicles

Abstract

In this paper, a test bench setup consisting of a drive motor connected to a dynamometer is modeled using MATLAB/Simulink for the purpose of emulating an electric vehicle drive system. Two different approaches of electric vehicle emulation are discussed which are based on predefined drive cycle and unpredictable driving behavior. The effect of total vehicle inertia is considered for both scenarios and a control scheme is developed for each case based on equivalent vehicle rotational inertia. Simulations are carried out for each case. Experimental test bench results are used to validate the overall effectiveness of this method.