Abstract
The unique distributed drive mode of the in-wheel-motor-drive electric vehicle (IWMDEV) is known as the ultimate form of automobile chassis technology. In order to meet the verification requirements of the SBW (steer-by-wire)/DBW (drive-by-wire)/BBW (break-by-wire) IWMDEV control algorithm, a 19 degrees of freedom (DOFs) dynamic model of the 4WID/4WIS/4WIB vehicle, including the vertical vibration, is established. According to the characteristics of XBW (x-by-wire) electric vehicle, modular design is used to design the structure and signal flow of the simulation platform. And the modeling methods and dynamic equations of each actuator are given. In addition, under different working conditions, the dynamic response quality of the simulation platform is compared and verified by CarSim. These experiments show that the simulation platform has high precision and can be used to analyze the transient and steady state response characteristics of the XBW IWMDEV under various working conditions.
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