HYBRID POWERTRAIN WITH A GEARBOX AND METHOD TO CONTROL THE HYBRID POWERTRAIN

A hybrid powertrain that includes a combustion engine () and a gearbox () with an input shaft () and an output shaft (); a first planetary gear () connected to the input shaft (); a second planetary gear () connected to the first planetary gear (); a first electrical machine () connected to the first planetary gear (); a second electrical machine () connected to the second planetary gear (); at least one gear pair (G) connected to the first planetary gear () and to the output shaft (); and at least one gear pair (G) connected to the second planetary gear () and to the output shaft (), a countershaft () provided between the combustion engine () and the gearbox () so that the engine () can be disconnected from the gearbox (). Also disclosed is a method for controlling the disclosed hybrid powertrain (). Also a vehicle () includes such a gearbox (), and a method to control such a gearbox (). Also a computer program (P) to control a gearbox.