So, a half-mile of road, at (say) sixty miles per hour, provides exactly how much time to re-charge the wireless charger the buses don’t have?Electric avenue: LA getting car-charging road ahead of 2028 Olympics
NY Post | 11/30/24 | Chris HarrisCalifornia is about to become home to the nation’s second electric vehicle-charging roadway — with construction due to be completed ahead of the 2028 Olympics in Los Angeles.
The multimillion dollar UCLA project, funded with state grant moneys, will concentrate on a half-mile stretch of road in Westwood, according to the Los Angeles Times.
And it will come as the university prepares to host the Olympic Village — where all of the competing athletes stay during the games.
“A wireless inductive option is a game changer,” Clinton Bench, director of the UCLA Fleet and Transit, told the Times.
“When a vehicle is driving over [a charger], the vehicle can collect charge while it’s moving.”
Close to $20 million in grant money will be used to upgrade UCLA‘s bus fleet, replacing gas-powered vehicles with electric buses.
The EV-charging roadway will eliminate the need to connect any of the buses to electric charging coils.
Any electric vehicle that utilizes the roadway will be able to pick up a charge, thanks to several underground charging stations.
The buses would pick up charge while driving throughout the day or when parked at a stationary wireless charger.
How can you let facts and physics get in the way of our fabulous fever-dream of unlimited contactless energy transfer without cost or maintenance? Philistine!
How many multiple million dollars per half mile was it? Will they still let the peasants drive on it?
Most peasants don’t deign to go to that part of town…
Nobody told me there’d be math.
.5 mile x 1 minute/mile = half a minute on this miracle charger.
“Electric charging coils” / “Several underground charging stations.”
… Have these been tested out on bats, eagles, or spotted owls navigating by the earth’s electric field, spotted worms underground, or frogs crossing the roadway?
On people with pacemakers?
Electronics in self-driving cars?
The lighter in my car?
Hippies with piercings?
Terrorists?
Always with those negative waves Moriority, always with them negative waves.
Mutual induction occurs due to the relationship between the electric field and the magnetic field. A charge moving through the electric field produces a change in the magnetic field proportionate to the strength of the current. Every force has a magnitude and a direction. The direction of the change happens to be 90 degrees to the change in electric field. The reverse is true. If you move flux perpendicular to a conductor, there will be a change in the electric field proportionate to the strength of the magnetic field. Again this happens most efficiently at 90 degrees.
This is why a generator produces an AC sign wave as it rotates. As a coil in the armature cuts the flux in the stator at 90 degrees the induced voltage is at its maximum, when the coil is parallel to the flux there is no induced voltage. At 180 degrees the coil is cutting the opposite way through the flux and therefor the induced voltage is negative…and so on. An AC voltage is actually the result of the rotation of a coil through a magnetic field. A full rotation is 360 degrees or one cycle.
Now what confounds me is that if the secondary is also moving parallel to multiple different primaries, how does this change the angle that the magnetic field cuts the secondary inductor? How does this change the phase relationship from primary to secondary? How can they possibly impedance match given different speeds and different number of turns in what we would expect to be a multi-tapped (variable load) secondary?
Maybe it’s possible but it seems like you’ll need to use tons of energy for very little power transfer.
Gah-lee, Mr. Fangbeer.
You use your tongue better than a twenty dollar whore.
I’d be interested to see what happens when some CalTech kid reverses the polarity on this as a lark.
They just gotta work out who gets the conference room during what times with the high-speed rail team.
They said there’d be donuts!
Inductive charging would only work if the vehicle being charged has inductive coils of wire for charging. Like a transformer. Name me one brand of EV that has that! Or bus! Another California boondoggle. They’d be better off with little gas-powered choo-choo trains on rubber wheels carting the Chinese visitors to their events.
Hey, a dystopic state can dream, can’t it?
Hmm.
If the road is vibrating at 85 kHz, Homeless will be able to cook their dinner with a pot laying on the road’s surface… Bonus.
WooHoo! Squab is “IN” again.
Biden: “Hey jack, I remember when people laughed at Nikola Tesla when he proposed a wireless inductive option.”
Not only does he remember, but he’s still laughing.