An electric bicycle gearbox (1) comprising a planetary gear system (3) and an auxiliary motor (8). The planetary gear system (3) comprises an input gear (6) configured to receive a drive input, an output gear (7) and a planet carrier (4) supporting a plurality of satellite gears (5). The satellite gears (5) are configured to transfer drive from the input gear (6) to the output gear (7). The auxiliary motor (8) is coupled to the planetary gear system and configured to rotate the input gear (6) or the planet carrier (4) relative to the drive input to vary the gear ratio between the drive input and an output of the planetary gear system (3).
ELECTRIC BICYCLE GEARBOX
GETRIEBE EINES ELEKTRISCHEN FAHRRADS
BOÎTE DE VITESSES DE BICYCLETTE ÉLECTRIQUE
2021-08-11
Patent
Electronic Resource
English
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Bicycle with novel gearbox transmission bicycle transmission
European Patent Office | 2022
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