發明
中華民國
105130708
I 605976
自行車自動換檔方法及系統
國立清華大學
2017/11/21
一種自行車的自動換檔方法及系統。此方法係控制前伺服馬達將前撥鍊器推動至大齒盤的第一齒輪,並控制後伺服馬達將後撥鍊器由後齒盤的第一飛輪依序推動至最末飛輪,以測量第一齒輪與各個飛輪之間的齒數比。之後,控制後伺服馬達將後撥鍊器推動至後齒盤的第一飛輪,並控制前伺服馬達將前撥鍊器由大齒盤的第一齒輪依序推動至最末齒輪,以測量第一飛輪與各個齒輪之間的齒數比。然後,利用所測量的齒數比建立其與自行車檔位的關係表。最後則偵測使用者的騎乘狀態,根據關係表控制前後伺服馬達推動前後撥鍊器,以切換至適於該騎乘狀態下的檔位。 In the method, a front servomotor is controlled to drive a front derailleur to a first gearwheel, and a rear servomotor is controlled to sequentially drive a rear derailleur from a first freewheel to a last freewheel, so as to measure a ratio of number of teeth of the first gear wheel to each freewheel. Then, the rear servomotor is controlled to drive the rear derailleur to the first freewheel, and the front servomotor is controlled to sequentially drive the front derailleur from the first gearwheel to the last gearwheel, so as to measure a ratio of number of teeth of the first freewheel to each gearwheel. The measured ratios of number of teeth are used to establish a relation table between the ratios and gears of the bike. Finally, a riding status of a user is detected to control the front and rear servomotor to drive the front and rear derailleur so as to switch to the gear adapted for the riding status.
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