this post was submitted on 29 Nov 2023
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216
Detroit's newest road can charge electric cars as they drive on it (www.axios.com)
submitted 11 months ago by [email protected] to c/[email protected]
153 comments fedilink hide all child comments
 

Detroit is now home to the country's first chunk of road that can wirelessly charge an electric vehicle (EV), whether it's parked or moving.

Why it matters: Wireless charging on an electrified roadway could remove one of the biggest hassles of owning an EV: the need to stop and plug in regularly.

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[–] [email protected] 5 points 11 months ago (1 children)

Not wireless. Overhead contact lines are wires they just skim along them.

Comparison for this would be a metal brush dragging the ground over electrical contacts to maintain connection. Which would be a third rail on roads, very dangerous.

[–] [email protected] 3 points 11 months ago (1 children)

Guess what's inside your wireless charging port!

The point is, there's no physical connection being made.

[–] [email protected] 2 points 11 months ago (1 children)

... Yes there is in trains. Not in wireless charging. I was correcting your comparison.

[–] [email protected] 0 points 11 months ago

Electric trains gather energy by running a conductive element along suspended wires. No connection made.

Wireless chargers charge devices through induction, in which a coil of wire produces a magnetic field, inducing a current in the wire coil in your device. Both have wires, neither make connections, we call both wireless.