The FCC approves ultra-wideband technology for Tesla's wireless EV charging, enabling precise alignment and charging for the Cybercab robotaxi. Learn about the system's stages and compatibility.
© A. Krivonosov
The U.S. Federal Communications Commission has approved the use of ultra-wideband (UWB) technology in Tesla's wireless electric vehicle charging system. This decision clears a key regulatory hurdle for the company, paving the way for a new charging scheme for its Cybercab robotaxi.
According to published documents, the system uses an impulse UWB module to establish precise communication between a transmitter in the vehicle and a second module embedded in a ground-based charging platform. This setup allows the car to position itself with maximum accuracy over the charging pad before energy transfer begins.
The process will operate in stages. First, the vehicle locates the charging pad via Bluetooth. As it approaches, the UWB system activates, tracking the car's position with high precision and confirming it is perfectly aligned. Only then does wireless charging initiate. Tesla notes the UWB signal is activated briefly and close to the surface, with the vehicle's body providing additional shielding after a full stop to reduce interference risk.
However, the Cybercab will not rely entirely on the new technology. Prototypes have already been spotted at standard Supercharger stations, indicating continued compatibility with the existing infrastructure. It is likely the first production versions of the robotaxi will be able to use both the precise wireless positioning system and traditional fast charging.