What is the function of the heat pump in the Audi e-Tron?

I've heard that the Audi e-Tron uses a heat pump for climate control, but I am not sure what it does exactly. Can you explain its role in the vehicle's heating and cooling system?

The heat pump in the Audi e-Tron plays a crucial role in efficient energy management. It works by extracting heat from the air outside and using it to heat the interior of the car. This reduces the energy consumed by the traditional heating elements, resulting in increased range and better overall performance.

Not only does the heat pump reduce energy consumption, but it also helps to optimize the vehicle's range in cold weather conditions. Without it, the battery would have to work much harder to maintain a comfortable cabin temperature, leading to decreased range.