Powertrain for a vehicle and method for controlling a powertrain

摘要

A propulsion device (2) for a vehicle includes an output shaft (14) of a combustion engine (4), an input shaft (27) of a gearbox (8), an electrical machine (6) having a stator (24) and a rotor (26), and a planetary gear (10) movable components (18, 20, 22). A locking mechanism (38) is movable between a first position wherein the engine output shaft (14) and the gearbox input shaft (27) are allowed to rotate at different speeds via the planetary gear (10), and a second position wherein the locking mechanism (38) firmly connects the engine output shaft (14) to the gearbox input shaft (27) via the planetary gear (10). Also a method for controlling the propulsion device (2) as disclosed.

主权项

1. A propulsion device for a vehicle, the vehicle having an engine with an output shaft and a gearbox with an input shaft;
the propulsion device comprising: the output shaft of the combustion engine; the input shaft of the gearbox; an electrical machine which comprises a stator and a rotor; a planetary gear which comprises movable components, including a sunwheel; a locking mechanism which is movable between first and second positions, wherein in the first position, the engine output shaft and the gearbox input shaft are configured to be allowed to rotate at different speeds via the configuration of and their engagement with the planetary gear, and in the second position the locking mechanism firmly connects the engine output shaft to the gearbox input shaft via the configuration and location of the planetary gear, wherein the engine's output shaft is connected to the planetary gear's sunwheel, wherein the locking mechanism comprises at least one spigot which in the first position of the locking mechanism is located and configured to engage with a first of the movable components of the planetary gear and in the second position of the locking mechanism is located and configured to engage also with a second of the movable components of the planetary gear.