| 摘要 |
In a conventional speed change control method, a speed change operation is performed by pushing a bar-shaped switch fixed to a handlebar of a bicycle. However, during such an operation, it is necessary to move a hand and move a finger to the position of the switch. When an operator is concentrating on pedaling a bicycle such as during a hill climb, movement of the body accompanying such an operation or temporary distraction due to a button operation may lead to stress. The timing for a speed change operation is also determined sensorially by an operator, but in terms of improving movement efficiency, the timing for a speed change operation is preferably determined on the basis of an objective physical indicator. In the present invention, a speed change is performed automatically by measuring the rocking of a bicycle/person generated during pedaling and detecting a change in the rocking, and thereby a button operation during a speed change is unnecessary. Further, the pedaling efficiency and the speed change timing are indicated to the operator on the basis of the rocking condition, and thus the bicycle training efficiency is improved. |
