DRIVE DEVICE FOR A VEHICLE OPERATED BY MUSCLE POWER, AND A MICRO-MOBILITY VEHICLE COMPRISING THE DRIVE DEVICE

原文（中国語）

A propulsion unit includes a crank device () for receiving muscle power and a speed modulation gear () for transmitting the muscle power onto an output gear () for propelling a vehicle. An electric machine () and a housing () can be mounted on the vehicle for accommodating at least some elements of the propulsion unit. The speed modulation gear () is in the form of a stepped planetary gear set with at least one stepped planetary gear (), corresponding ring gears (), and an input element. The crank device () is couplable to one of the ring gears (), and an output element () of the electric machine () is coupled to the input element. The speed modulation gear () is mounted rotatably with respect to the housing () such that rotation of the electric machine () and rotation of the crank device () can be superimposed and transmitted onto the output gear ().