Matching up the suspension of electric vehicle with the supporting system of battery pack

Abstract

As a solution for reducing emissions, electric ve-hicles are focused on battery system rather than vehicle dynamics. To improve the performance of suspension systems of the electric vehicle and protect battery packs, the paper proposed a supporting system to match up with the electric vehicle suspension. The initial fixed frame system of the battery pack is changed to a supporting system with springs and shock absorbers. A 10-DOF model was developed based on the full vehicle model. Applying Simulink and the state space model, the feasibility of the supporting system is tested and the ideal position of the battery pack is calculated by the different location parameters. The results show that the centre of mass is the ideal position for the battery pack. When the supporting system is installed, the automobile body acceleration, suspension working space and tire dynamic loads are improved obviously.

DOI: http://dx.doi.org/10.5755/j01.mech.20.4.6300