The present invention relates to a driving method for a wheelchair power device for changing electromotive driving. Specifically, the driving method for a wheelchair power device for changing electromotive driving comprises: a driving preparing step (S110) of applying power； a forward driving step (S120) of driving a wheelchair (10) forward as a steering unit (50) installed at an end of a control handle (31) rotates at a fixed angle when a passenger pulls the control handle (31) toward a chest, and of driving the wheelchair forward by pulling the control handle in which a driving speed is increased as a rotation angle of the steering unit (50) becomes increased； a braking step (S130) of returning the control handle (31) to an initial position by a restitution force of a coil spring (53) installed in the steering unit (50) when the passenger removes power of pulling the control handle (31) while driving forward and, at the same time, of braking the wheelchair (10)； a driving direction changing step (S140) of changing a forward mode to a rearward mode or a rearward mode to a forward mode as the passenger pushes the control handle (31) forward one time while the control handle (31) is in the initial position while driving； and a rearward driving step (S150) of driving the wheelchair (10) rearward as the steering unit (50) installed at the end of the control handle (31) rotates at the fixed angle when the passenger pulls the control handle (31) toward the chest when the driving direction is changed to a rearward direction and also increasing the driving speed as the rotation angle of the steering unit (50) becomes increased.COPYRIGHT KIPO 2020본 발명은 전동주행 전환용 휠체어 동력장치의 주행방법이다. 그 구체적인 주행방법은, 전원을 인가하는 주행 준비단계(S110)와； 탑승자가 조작핸들(31)을 가슴쪽으로 잡아 당기면 조작핸들(31)의 말단에 장착된 조향유닛(50)이 일정 각도로 회전되면서 휠체어(10)가 전방으로 주행하게 되고, 조향유닛(50)의 회전 각도가 커질수록 주행속도가 증가되는, 조작핸들을 당기면서 전방으로 주행하는 전방 주행단계(S120)와； 전방 주행중 탑승자가 조작핸들(31)에서 당기는 힘을 제거하면, 상기 조향유닛(50)에 장착된 코일스프링(53)의 복원력으로 인해 조작핸들(31)이 제자리로 복원됨과 동시에 휠
