| 摘要 |
An apparatus 12 for moving an electrically controlled bicycle derailleur 62, 66 from a first sprocket 54A to a second sprocket 54B comprises a derailleur position input for receiving a signal indicating a position of the derailleur 62, 66; a memory 414 storing a first reference derailleur position for the second sprocket; and a motion control circuit 412, 413 that provides a plurality of signals to move the derailleur 62, 66 from the first sprocket 54A to the second sprocket 54B. The plurality of signals comprises a first signal generated when the derailleur 62, 66 initially moves away from the first sprocket 54A and a second signal generated when the derailleur 62, 66 is in close proximity to the second sprocket 54B. |
