Study of Direct Torque Control during Turns for Electric All-Terrain Vehicles with Two-Wheel Independent Drives

Wheel Independent drive structures presented improvement of maneuverability and stability of vehicles. In this paper, the study of direct torque control (DTC) regulating two rear hub-motors during turns of electric all-terrain vehicles (ATV) has been proposed. Mathematic models present torque and power requirements of two rear wheels driving in curves. In comparison to axle drives with and without differential gear, the two-wheel independent drive presented a narrower turning radius by means of DTC. The simulation results present the lower peak current and instantaneous power at the battery. In addition, the braking torque of the inner wheel in curves can be achieved by the hub motor.