In full acceleration, the vehicle is powered by both the combustion engine and the electric motor. This operating mode is called Boost and is only available for a short amount of time because it uses so much energy. Availability depends on the high voltage battery charge level. The boost operating mode is activated by pressing the accelerator pedal all the way down.
The vehicle can be driven completely electrically depending on the high voltage battery charge level and the driving resistance. The combustion engine turns off at that time. The combustion engine starts when accelerating or when the high voltage battery charge level drops below a certain threshold. The vehicle resumes electric driving once the acceleration and the high voltage battery charge level permit.
The functions and operating modes described below are selected automatically by the vehicle control system, depending on the vehicle operating status. This ensures that the vehicle is always in the correct operating mode. One exception is the enhanced electric driving mode (EV mode), which is activated by the driver page 100. When braking, the electric motor will act as a generator creating electric energy that is then stored in the high voltage battery.
This a lso occurs when the vehicle is coasting or driving downhill. The combustion engine is automatically turned off in this case.