A number of variations may include an electric cycle powertrain comprising: a motor comprising a rotor and a stator; a crankshaft operatively connected to a first and second pedal assembly; a stepped planetary gear set comprising a sun gear, at least one stepped pinion gear having a first and a second portion operatively connected to each other and operatively connected to the sun gear, wherein the first portion rotates within a grounded first ring gear and the second portion rotates within a second ring gear; wherein the sun gear is connected to the rotor; wherein the second ring gear is operatively connected to the crankshaft and the first and second pedal assemblies; wherein the at least one stepped pinion gear are operatively connected to a carrier; and wherein the carrier is operatively connected to a chain ring operatively connected to a chain to drive a rear sprocket.


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    Title :

    ELECTRIC BIKE POWERTRAIN COMPOUND PLANETARY GEAR SET AND RING GEAR PEDAL TORQUE REACTION MEASUREMENT


    Contributors:

    Publication date :

    2017-01-05


    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



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    Free access