Vertical Vibration Simulation Analysis of In-wheel Motor Electric Vehicle Suspension

Abstract

To analyze the vertical vibration characteristics of in-wheel motor electric vehicle suspension, through MATLAB/ Simulink for simulation and analysis, a vertical kinetic model of 1/4 vehicle is built. Without changing the original premise of vehicle suspension parameters, vehicle vertical vibration acceleration ô€•ôˆ· of in-wheel motor as unsprung mass and wheel dynamic load ô€œ¨ô€¯§ are in turn to be simulated, to study the influence of the increase of the unsprung mass on the vertical vibration of the suspension because of the introduction of in-wheel motor. The research results provide a reference for improving the NVH characteristics of in-wheel motor electric vehicle.