An auxiliary drive assembly for wheelchairs is revealed. The auxiliary drive assembly includes a wired transmission member (10), at least one sensor (20), a control circuit (30) and a drive unit (40). The wired transmission member is arranged at a wheel hub (5) on a wheel (3). The sensor is set on the wheel for generating a sensing signal sent to the wired transmission member. The control circuit is coupled to the wired transmission member, receiving the sensing signal and generating a control signal. The drive unit is coupled to the control circuit and receives the control signal so as to drive the wheel hub to rotate and further move the wheel. Thereby the assembly is with simple structure and the environmental interference is minimized by wired signal transmission. The sensing signal is sent to the control circuit exactly and the drive unit is controlled to rotate the wheel precisely. The wired transmission reduces the cost.本發明係有關於一種輪椅之輔助驅動裝置,其包含一有線訊號傳輸結構、一感測器、一控制電路與一驅動單元。有線訊號傳輸結構設置於一輪轂,且輪轂設置於輪椅的一轉動輪,感測器設置於轉動輪,並產生一感測訊號而傳輸至有線訊號傳輸結構,控制電路耦接有線訊號傳輸結構並接收感測訊號以產生一控制訊號,驅動單元耦接控制電路並接收控制訊號,以依據控制訊號驅動輪轂轉動而轉動轉動輪,如此,本發明可達到結構簡單之目的,並且利用有線傳輸方式傳輸訊號,因不易受外界環境干擾,得以確實傳輸感測訊號至控制電路,進而精確控制驅動單元轉動該轉動輪,且使用有線傳輸方式可降低成本。
