Biking can be the one of best choice for short-range transportation, with the same time also has the fitness feature. But modern bikes have more than dozen of gear-shifts mechanism, so that users are often hard to adjust suitable gear shift at right timing and correct speed. This thesis implemented the rule of intelligent automatic shifting transmission bicycle, so that users can concentrate on traffic safety and pedaling motion without worry about operated the gear-shift issue. The thesis uses the speed to assess applicable gear and the gear shift timing to achieve intelligent automatic transmission bicycle function, helping users to have a behavior of comfortable ride, and, also get good health from biking exercise in same time. The thesis has been completed the design of prototypes, the experimental results can indeed achieve automatic gear shift function, it can relieve the rider to operate the shift action and focus on the fun of riding.

換檔時機判斷方法及自動變速系統

自行車之換檔時機判斷方法及自動變速系統