A bidirectional DC-DC converter fed DC motor for electric vehicle application

This work presents a digital simulation of an operation of a small electric vehicle. The traction chain consists of a battery, a bidirectional DC-DC converter and DC motor. The vehicle dynamics which represents the load torque applied on the motor shaft is taken into account. The two modes of operation; motor and regenerative braking mode are explained and the simulation model can simulate the two modes simultaneously. The energy resulted in the braking phase is stored in the battery, thus permits to increase the autonomy of the vehicle.