The GM patent shows how to charge two EVs from one quick charger

General MotorsCar and driver

  • We are just getting started with electric vehicles and there are various ways we can use them to do things that ICE vehicles cannot.It brings us to this GM patent applicationShows a smart way to quickly charge two EV batteries at the same time.
  • Sure, it’s good to charge at 400 or 800 volts, GMC Hummer EV After connecting to the quick charger, for example Chevrolet Silverado EV To Hummer’s second port to charge the Silverado at the same time.
  • This is far more interesting than the dry words of the patent that GM used in the title of the invention. “Adaptive fast charging of multi-pack battery systems on mobile platforms with dual charging ports”.

    Electric vehicles have features that provide features not found in simple petrol vehicles and trucks. From the possibilities of more flexible interior layout design to regenerative braking that turns deceleration into electrical energy, we are still learning what EVs of the future can do. General Motors is experimenting with battery technology Ultium pack It regains waste heat from normal vehicle operation and uses it to extend range. However, this could cause the GMEV to behave differently than its competitors’ models, thanks to a patent showing the possibility of two charging ports and the ability to charge two vehicles from one DC quick charger. It’s not the only interesting new way.

    GM’s Ultium battery uses a modular design and can contain 6 to 24 modules, depending on the size and performance requirements of the vehicle. Ultium’s clever trick is to be able to switch layers in the pack and connect them in series or in parallel. The EVs that GM sells today have separate layers of battery modules. For example, the Edition 1 GMC Hummer EV comes with a 212.7kWh pack that offers a range of 329 miles. The Green Car Report, which first discovered the patent, states that the GMC Hummer EV uses 24 modules, which are located in two sets of 12 modules. The new patent application filed by GM does a lot of interesting things using two ports, such as charging multiple EVs in a daisy chain setting. This type of battery has been confirmed not only in the Hummer EV, but also in future Chevrolet Silverado EV and GMC Sierra EV models, and is expected to be used in more GM EVs in the future.

    Dual fast charge gm patent

    US Patent and Trademark Office

    The main idea of ​​GM’s patents is to explore the flexibility enabled by switchable connections. The production vehicle operates at 400 volts and the battery layers are connected in parallel. However, it is switched in series so that it can be charged with an 800 volt DC quick charger, such as the Electrify America charger. This patent suggests the additional possibility that an 800 volt charging station can instead charge two EVs connected together via a second charging port. This is wise and can effectively double the number of cars a single DC quick charger can charge at one time. This could be a better idea as more EVs are on the road and begin to overwhelm the charging infrastructure. GM has also announced that the Hummer EV will offer bidirectional charging via an optional power plant, so tools and other electrical equipment, even when the truck is parked on site or in a campsite. Works fine.

    As always, just because a patent application has been filed does not mean that the technology is on the market.

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The GM patent shows how to charge two EVs from one quick charger

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