GM Patent Shows a Way to Charge Two EVs from a Single Fast Charger

Common MotorsMotor vehicle and Driver

  • We’re seriously just obtaining began with electric powered autos, and the various ways they can be used to do points ICE autos can not. That brings us to this GM patent application, exhibiting a clever implies of speedy-charging two EVs’ batteries at the identical time.
  • Positive, charging at either 400 or 800 volts is neat, but visualize pulling your GMC Hummer EV up to the rapidly-charger and then connecting, say, a Chevrolet Silverado EV to the Hummer’s second port to charge the Silverado at the very same time.
  • This is all so considerably extra appealing than the dry language of patents that GM utilized to title the creation: “Adaptive quickly-charging of multi-pack battery process in a mobile system getting twin cost ports.”

    Electric cars have the ability to give attributes that basic gasoline-powered vehicles and vans only are unable to. From a lot more adaptable interior structure style and design options to regenerative brakes that change slowing down into electrical electricity, we are still studying what the EVs of the upcoming will be capable of. General Motors is experimenting with battery technologies, asserting a feature that enables its Ultium packs to recapture waste heat from the normal vehicle procedure and use it to lengthen vary. But this is not the only attention-grabbing new way a GM EV could possibly perform differently than competitors’ styles thanks to a patent that demonstrates the likelihood for two demand ports and the skill to cost two vehicles off of one DC speedy charger.

    GM’s Ultium batteries use a modular layout and can consist of involving six and 24 modules, dependent on car size and general performance needs. Ultium’s neat trick is that it can switch the layers of its packs to be related in either series or parallel. The EVs GM sells these days have separated layers of battery modules. The Edition 1 GMC Hummer EV, for instance, has a 212.7-kWh pack that presents a variety of 329 miles. Environmentally friendly Car Stories, which initial noticed the patent, notes that the GMC Hummer EV works by using 24 modules, but they are organized in two sets of 12 modules. A new patent application submitted by GM employs the two ports to do a variety of interesting points, these types of as demand many EVs in a daisy chain established-up. This variety of battery has been confirmed for the Hummer EV as well as the impending Chevy Silverado EV and GMC Sierra EV models, and we suspect we’ll see it in several more GM EVs down the street.

    U.S. Patent and Trademark Workplace

    The main concept of GM’s patent is to take a look at the versatility permitted by obtaining the switchable connection. The creation vehicles function at 400 volts, with the battery layers connected in parallel. But they swap to series so that they can demand at an 800-volt DC speedy charger, this kind of as people from Electrify The us. The patent implies more prospects, in which an 800-volt charging station could instead charge two EVs linked alongside one another by means of a next demand port, both equally of which would continue to be in their 400-volt parallel configuration. That is intelligent, and would properly doubling the variety of vehicles a solitary DC quick charger can demand up at after, which could develop into a better and far better idea as much more EVs are on the streets and get started to overwhelm the charging infrastructure. Also, GM has presently introduced that the Hummer EV will supply bi-directional charging via an optional Electrical power Station, so applications and other electrical products will get the job done just good when the truck is parked at a career web page or campground.

    As generally, just simply because a patent application has been submitted does not indicate this know-how will appear to current market.

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