Electric drive system, which is charged by hydrogen fuel cell when parking and efficiently distributed by secondary batteries when driving, by adjusting discharge and regeneration of batteries offront and rear motors according to driving speed

Abstract

The present invention presents an electric drive system that charges the batteries using the hydrogen fuel cell when the vehicle is parked and efficiently distributes and supplies power to front and rear-wheel motors by adjusting the discharge and the regeneration of the batteries according to the driving sections when the vehicle is driven. The said electric drive system comprises a frame; the front and rear wheels installed on the said frame; the first motor for providing driving force to the said front wheel when driven and generating electricity using the rotation of the same at rest; the second motor for providing driving force to the said rear wheel when driving and generating electricity using the rotation of the same at rest; the first battery that is discharged to supply power to the said first motor and is charged by the power generated by the same; the second battery that is discharged to supply power to the said second motor and is charged by the power generated by the same; hydrogen fuel cell for charging the said first and second batteries; the first motor controller for controlling the operation of the said first motor; the second motor controller for controlling the operation of the said second motor mentioned above; and the battery management system for preventing the overcharging of the said first and second batteries and stores and supplies the power for the same.