Synthetic engineCar and Driver
- We’re just getting started with electric vehicles, and they can be used in a variety of ways to do things that ICE vehicles can’t. That brings us to this GM . Patent Applicationshows a smart means to quickly charge two EVs batteries at the same time.
- Sure, it makes sense to charge at 400 or 800 volts, but imagine you’re pulling GMC Hummer EV until the fast charger and then connect, such as Chevrolet Silverado EV to the Hummer’s second port to charge the Silverado at the same time.
- This is a lot more interesting than the dry patent language GM used to name the invention: “Adaptive fast charging for a multi-battery system in a dual-port mobile platform.”
Electric vehicles are capable of providing features that gasoline-powered cars and trucks simply cannot. From the ability to design a more flexible interior layout to a regenerative braking system that converts deceleration into electrical energy, we’re still figuring out what future electric cars will be capable of. General Motors is testing battery technology, announcing a feature that allows Ultium Pack to recover waste heat from the vehicle’s normal operation and use it to extend its range. But this isn’t the only exciting new way the GM EV can behave differently from competitor models thanks to a patent that shows the possibility of two charging ports and the ability to charge two vehicles with a single charger. fast DC.
GM’s Ultium batteries use a modular design and can hold between six and 24 modules, depending on vehicle size and performance requirements. Ultium’s trick is that it can pass layers of its packets connected in series or in parallel. The EVs GM sells today all have separate battery layers. For example, the Edition 1 GMC Hummer EV has a 212.7 kWh package that offers 329 miles of range. Green Car Reports, where the patent was first discovered, notes that the GMC Hummer EV uses 24 modules, but they are arranged in two sets of 12 modules. GM’s new patent application uses these two ports to do some cool things, like charging multiple EVs in a daisy-chain setup. This battery is already confirmed for the Hummer EV as well as the upcoming Chevy Silverado EV and GMC Sierra EV models, and we doubt we’ll see it in many other GM EVs on the road.
US Patent and Trademark Office
The main idea of GM’s patent is to explore the flexibility allowed by switchable connectivity. The production vehicles operate at 400 volts, with the battery layers connected in parallel. But they switched to series to be able to charge at an 800-volt DC fast charger, such as the one from Electrify America. The patent shows additional possibilities, where an 800-volt charging station can charge two EVs connected through a second charging port, both of which will be in their 400-volt parallel configuration. That’s smart and will effectively double the number of cars a DC fast charger can charge at once, which could become a better and better idea as more and more cars become available. EVs are on the road and starting to crowd out the charging infrastructure. In addition, GM has also announced that the Hummer EV will offer two-way charging through the optional Power Station, so other power tools and equipment will work well when the truck is parked at a construction site or in an area. camp.
As always, just because a patent application has been filed doesn’t mean the technology will hit the market.
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