The energy management approach of the Q7 hybrid concept fundamentally recognises three driving modes, thus assuring the high efficiency of the drive system: the combustion engine or electric motor can operate as the sole power source, or they can combine forces in accelerating the vehicle. The petrol engine acts as the basic power source, as it simultaneously discharges energy to the battery.
„Boost“
If the driver wants to accelerate particularly swiftly, the electronics activate the electric motor, too. This new dimension of acceleration, known as "boost", is entered automatically whenever the accelerator is pressed fully down. A comparison: the Q7 hybrid concept knocks 0.6 of a second off the time its V8 petrol counterpart takes to sprint from 0 to 100 km/h, and it accomplishes the sprint from 80 to 120 km/h, important for instance for overtaking, 2.0 seconds faster.
„Recuperation“
Whenever the driver applies the brakes or is driving downhill, the unit turns into an alternator and uses the energy released by such processes to charge up the battery. This process, known as "recuperation", takes place unnoticed by the drive
Energy-saving operation
"Creeping" and energy-saving operation: at speeds of up to 30 km/h, the Q7 can also be driven along exclusively by its electric motor if desired. If the vehicle is rolling in the hybrid mode without the accelerator being pressed or if it remains stationary for more than three seconds, the combustion engine is shut down.
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