Automatic transmission for electric bicycle

B - Operations – Transporting – 62 – M

Patent

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Details

B62M 13/02 (2006.01) B62M 6/40 (2010.01) B62M 23/02 (2010.01)

Patent

CA 2356932

There are provided an automatic transmission for an electric bicycle comprising a mechanical gear shifting means and an electronic gear shifting means for mechanically and electronically shifting an output of the motor according to a magnitude of friction force between the wheel and ground and transferring the shifted output of the motor to the driving member; a moving housing in which the motor, the driving member, the power transmitting means, the mechanical and electric gear shifting means are mounted; a fixed housing which is fixedly disposed at an outer side of the moving housing; and a first rotational shaft which penetrates through the driving member, the moving housing, and is rotatably fixed to the fixed housing, wherein, while the moving housing is revolved with the rotational shaft in the center according to the magnitude of load exerted on the wheel of the bicycle, the output of the motor is changed through the mechanical and electronic gear shifting means and then transferred to the driving member.

L'invention porte sur une transmission automatique de bicyclette électrique, cette transmission comprenant un organe mécanique et un organe électronique de changement de vitesse qui permettent de multiplier ou démultiplier mécaniquement et électroniquement la sortie du moteur en fonction de la force de friction entre la roue et le sol et de transférer la sortie ainsi multipliée ou démultipliée du moteur sur l'élément d'entraînement; un carter mobile dans lequel sont montés le moteur, l'élément d'entraînement, l'organe de transmission de puissance, les organes de changement de vitesse mécanique et électronique ; un carter fixe placé de manière fixe au niveau d'un côté externe du carter mobile ; et un premier arbre rotatif qui pénètre dans l'élément d'entraînement, le corps amovible étant fixé rotatif sur le carter fixe. Tandis que le carter mobile est entraîné par l'arbre rotatif centrale en fonction de la force s'exerçant sur la roue de bicyclette, la sortie du moteur est multipliée ou démultipliée par l'organe de changement de vitesse mécanique et électronique, puis transférée sur l'élément d'entraînement.

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