A method of operating a powertrain of a hybrid vehicle and powertrain of a hybrid vehicle

摘要

Method for operating a powertrain of a hybrid vehicle in P3 configuration with the method steps: S2a: In the electric drive mode, the torque of the electric motor is increased and the clutch is at least partially closed to tow the engine; S2b: Upon reaching a predetermined minimum speed of the internal combustion engine, the internal combustion engine is started and the clutch is fully opened to decouple the internal combustion engine from the electric motor; S3: When reaching a predetermined target speed of the internal combustion engine, the clutch is partially closed and the torque of the electric motor is reduced; S5: Upon reaching substantially synchronous speeds of the engine and the electric motor, the clutch is at least partially closed to change to the hybrid drive mode; wherein in the process steps S2a and S2b the internal combustion engine is given a constant desired torque.