So, when the suspension works to dampen vibrations or shocks, the resulting vertical movement will be converted into electrical energy. This energy will then be stored in the battery.
The working principle is similar to a regenerative braking system, which converts kinetic energy into electrical energy. This energy can then be stored in the 12V electric car battery or in the high voltage traction battery of an electric vehicle.
Getting energy from a moving car is an extraordinary thing, especially when getting it from an uneven road surface.
With this technology, it’s as if BMW managed to charge the battery for free. But, of course, this technology is not something that is cheap if it is going to be mass produced.