ELECTRIC VEHICLE CONTROL DEVICE AND METHOD USING DIFFERENCE IN MOTOR REDUCTION RATIO

Provided are an electric vehicle control device and method using the difference in the motor reduction ratio. An input part inputs data regarding driving mode. A sensor detects a driving speed. A processor sets different speed ranges according to the driving mode, controls engagement of a first clutch with respect to a first reducer and operation of a front wheel motor, controls engagement of a second clutch with respect to a second reducer and operation of a rear wheel motor, determines a speed range among the speed ranges corresponding to the driving speed, and controls an electric vehicle to operate in one of front-wheel drive, four-wheel drive, and rear-wheel drive. The clutch and motor driving is controlled variously on the basis of the difference in the reduction ratio of the front wheel and the rear wheel, thereby improving fuel efficiency and improving the driving performance and stability of the electric vehicle.