EV demos battery charging through the road

[LoneStar]

interesting read. I never would have thought the power/energy density transfer could equal that consumed with the vehicle motion. I guess it must feel like a slight continuous regen braking effect. That's my guess anyhow.

This Fiat 500 EV Is Charging Wirelessly Through The Road As It Drives - jvne.com

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[CommodoreAmiga]

That's on a special test track where they've built inductive charging coils under the road surface.

A google search indicates the Fiat 500 EV uses only 188Wh per mile... Granted that's more than your cell phone gets from a Qi charger, it's also not totally crazy to think it could be done in a controlled environment.

The problem is it's entirely impractical for the real world, imo. You'd have to tear up the roads to embed the charging coils, and then run power infrastructure to them, and then the load of everyone charging on a road?

Cool experiment. Not practical.

More practical would be parking lots with inductive coils under the parking pads, imo.

 

[R1Sky Business]

Rivian will promise that will be coming SooN....right after the tank turn....the electrochromatic glass roof and the 5 seat SUV configuration

 

[Autolycus]

The problem with inductive charging is that it is horribly inefficient even in ideal circumstances where the coils on the charger and device are lined up perfectly and are as close together as possible. Add motion and coils that are under a stable road surface and connecting to coils on the vehicle that are a good distance above the road surface, and you'll looking at pretty big losses ON TOP OF the normal charging losses associated.

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