Major automotive manufacturers continue to experiment with advanced technologies to make charging for electric vehicles faster and, after supply, cars can have more kilometers of autonomy.
This is the case of General Motors, a company that patented an innovation that consists in providing cars with two ports for bidirectional recharging.
These advances seek to exploit the energy storage capacity of electric car batteries to the maximum, so that they not only store energy for the vehicle, but also for other devices.
According to information published by Green Cars Reports, in the patent filed by General Motors, one of the two charging ports could be configured to charge at 800 V or 400 V; while the second point would be connected to the first one and would be 400 V.
The main port would support up to 350 kW of DC charging, while the other would support up to 22 kW of three-phase AC charging. The second charger could also be upgraded to DC capability so that both could be connected to fast chargers.
Moreover, the patent indicates that this type of system could soon be extended to other types of motor vehicles, aircraft, boats or even rail vehicles.
The great novelty of the brand compared to others with V2V or V2X charging technologies such as those being developed by Hyundai or Nissan, is that in order to facilitate and accelerate the bidirectional charging process, the vehicles will be equipped with two ports.
Both channels would work simultaneously, to charge the upper and lower battery packs (in this case, each at 400V maximum and not 1200V), and thus reduce supply times.
Another option is for the dual connector to also function as a charger, so that while the main port charges the vehicle, the second could charge another electric car or even power equipment and/or power tools.
It should be noted that this is, in the first instance, a patent, so the project has not yet started in a practical way.