A POWERTRAIN SYSTEM FOR DRIVING AT LEAST ONE WHEEL OF A VEHICLE

The invention relates to a powertrain system () for driving at least one wheel of a vehicle, comprising: —a motor () having an output shaft (); —a transmission system between the motor () and a drive shaft () connected to said wheel, the transmission system comprising two epicyclic gear trains () each including the following components: a ring, a sun, a planet carrier and planet gears, wherein: —a first epicyclic gear train () has a first axis (A), a component forming a first input component () connected to the motor output shaft (), and a component forming a first output component (); —a second epicyclic gear train () has a second axis (A) parallel to the first axis (A), a component forming a second input component () meshing with the first output component (), and a component forming a second output component () configured to be connected to the drive shaft ().