一種電動輪椅，供一使用者乘坐，且包含一移動輪體、一座體、一感測單元，及一控制單元，移動輪體可受控制地移動任意方向，座體承載使用者，且可被控制地旋轉並安裝在移動輪體上，感測單元設置於座體，以感測座體的一朝向方向並產生一方向訊號，其中，朝向方向為使用者的一面向方向，控制單元電連接感測單元及移動輪體，且接收方向訊號，並根據方向訊號控制移動輪體往朝向方向移動，電動輪椅藉由座體轉向朝向方向，感測單元感測朝向方向，控制單元控制移動輪體直接往朝向方向移動，則電動輪椅轉彎時不需迴轉半徑就能轉向。 An electric wheelchair for carrying a user, includes a movable base, a seat body, a sensor and a controller. The movable base is operated to move in different directions. The seat body for supporting the user is disposed over the movable base and is operated to turn. The sensor disposed on the seat body is configured to sense a facing direction of the seat body and generate a direction signal. The facing direction represents the direction in which the user supported by the seat body faces. The controller, electrically coupled to the sensor and the movable base, receives the direction signal and controls the movable base to move in the facing direction based on the direction signal. The user may drive the electric wheelchair to turn in the facing direction by turning the seat body. As the sensor detects the turning direction of the seat body, the controller controls the movable base to move in the facing direction. Thereby, the electric wheelchair is capable to make a turn with a radius of gyration equal to zero.
