Approximation of Higher Order Electric Vehicle System Incorporating Factor Division Method

In this paper, an approximation of linearized electric vehicle (EV) system is performed. A second-order approximated model is obtained for fifth-order linearized EV system. The approximation is performed to clarify and demonstrate the applicability and usefulness of the approximation method used in this paper. This paper aims to estimate a suitable approximated model of order two, for a linearized EV system, by utilizing the factor division method. Comparisons based on time domain specifications are provided to demonstrate the practicality of the model. Even after performing the approximation, it is found that the model obtained is stable and retains the properties of the original system. For proving efficacy and effectiveness of the suggested method, step response, Bode response, Nyquist response, and impulse response are also presented.