You can brake via the discs and on the motor, a process with which you can recover energy. But Mercedes is also working on a third option, in which the car is slowed down by lowering the pressure of the tires. After all, less tire pressure results in a larger contact surface and therefore more rolling resistance, which ensures that you slow down faster. How the system actually works is still a matter of speculation. But the patent application is said to have been filed by now.
Emergency brake assist
This braking system via variable tire pressure is not intended as an alternative to the existing braking systems, but rather as a supplement in case something threatens to go wrong. This technology would be developed for the next generation of electric cars from Mercedes, but concrete applications are still a long way off.
This technology is not entirely new, however. In off-road racing, systems are already being used that allow you to automatically adjust the tire pressure to the terrain over which you have to drive.
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