| 摘要 |
The utility model relates to an automatic variable speed bicycle, comprising a bicycle body, a dynamic force electric motor, a battery cell device, a variable-speed controller, an inducing rapid device, an actuating device, etc. The actuating device and the dynamic force electric motor interlock in order to drive the back wheel of the bicycle body rotate, the variable-speed controller is electrically connected with the battery cell device and the inducing rapid device respectively. The using capacitance of the battery cell device is controlled through the change of speed, when the cranking speed is slow, the less battery cell device capacity is controlled to use, thus when the bicycle is started, the electricity can be saved, and the bicycle can be controlled smoothly and easily; when the speed increases, the larger battery cell device capacity is controlled to use in order that the bicycle advances amain. |
