The invention relates to a power-assisted wheelchair structure and a method for operating the same. Primarily, it is used for assisting limb disorders, the elderly and those with limited mobility to conduct rehabilitation and assist actions. It can provide relative auxiliary power according to the magnitude of the user’s hand urging force and foot kicking force to reduce the burden on the user. A velocity sensor is used for measuring the rotational speed of the user’s hand urging force, and the user’s hand urging force is estimated by the difference of the measured speed. Furthermore, a displacement meter is used for measuring the swing speed of the user’s foot kicking force, and the user’s foot kicking force is estimated by the measured swing speed to further control auxiliary power provided by an auxiliary power source. Accordingly, it can not only be used for those with limited mobility to proceed with rehabilitation and sport for their hands and feet but also be used for carry a user to move during the procedure of conducting rehabilitation and sport. The use is not limited to indoor and outdoor. It can also lower the manufacturing costs, so as to increase the practicality and efficiency for the whole implementation.本發明係有關於一種動力輔助輪椅結構及操作方法,其主要係可協助肢體障礙者、高齡者或行動不便者進行復健和輔助行動,根據使用者的手部施力或腳部踢力的大小,提供相對的輔助動力,以減輕使用者的負擔,以速度感測器來測量手部施力轉動速度,再根據所測量的速度差異來估計使用者的手部施力,以位移計來測量使用者腳部踢力擺動速度,再根據所測量之擺動速度來估計腳踢力,以控制輔助動力源提供之輔助動力;據此,以不僅能提供行動不便者同時進行手部及腳部之復健、運動,且可於進行復健、運動之過程中同時搭載使用者進行移動,在使用上不限室內、外,並能有效降低製作成本,而在其整體施行使用上更增實用功效特性者。(1)‧‧‧輪椅本體(11)‧‧‧座位部(12)‧‧‧驅動輪(13)‧‧‧手動輪(14)‧‧‧連動件(15)‧‧‧腳部擺動架(151)‧‧‧腳踏板(2)‧‧‧控制系統(24)‧‧‧速度感測器(25)‧‧‧角位移計
