What is the Audi A7 Cylinder on Demand technology?

I've heard about the Audi A7 having Cylinder on Demand technology, but I'm not sure what it is or how it works. Can someone provide a brief explanation?

The Audi A7 Cylinder on Demand technology is a system that allows the engine to automatically deactivate some of its cylinders to improve fuel efficiency. This happens when the car is cruising or driving at low speeds, reducing the number of cylinders from eight to four. As a result, less fuel is consumed and emissions are reduced.

Cylinder on Demand technology is a feature that is specifically designed for the Audi A7 and is not commonly found in other vehicles. It uses advanced sensors and computer systems to determine when it is appropriate to deactivate cylinders and seamlessly switches between four and eight cylinder operation.

In addition to improving fuel efficiency and emissions, the Cylinder on Demand technology in the Audi A7 also helps to improve the overall driving performance and handling of the vehicle. With fewer cylinders in use, the engine can operate at a more efficient level, providing a smoother and more responsive ride.