Propulsion unit (8) for an electric, pedal-assisted bicycle comprising an electric machine (12) having a stator (14) and a rotor (16), rotatable about a motor axis (M-M), said rotor (16) being operatively connected to a crank pin (18), defining a crank axis (X-X), mechanically connected to pedals (20), and coaxial with the motor axis (M-M), wherein the rotor (16) is coaxial and external with respect to the stator (14) so-as radially enclose the rotor (16). The propulsion unit (8) comprises at least one electronic unit (32) for operating and controlling the functioning of the electric machine (12), and at least a pair of housings (24, 26) that define a containment space (28) which houses the electric machine (12) and at least partially the crank pin (18). The propulsion unit (8) comprises transmission means (36) of. the movement from the rotor (16) to the crank pin (18), said transmission means (36) being arranged in an asymmetrical position overall and decentralised from the crank axis (X-X) so as to be outside the projection of the rotor on a projection plane perpendicular to the crank axis (X-X).


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    Title :

    PROPULSION UNIT FOR AN ELECTRIC PEDAL-ASSISTED CYCLE AND PEDAL-ASSISTED CYCLE THEREOF


    Contributors:

    Publication date :

    2017-11-23


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES



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    PROPULSION UNIT FOR AN ELECTRIC PEDAL-ASSISTED CYCLE AND PEDAL-ASSISTED CYCLE THEREOF

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    Free access