Charging whilst driving?

[leyorkie]

Just announced today a trial of charging hgv’s on French motorways
26 million euros on two systems
Induction loop and a rail system.
Restricted to hgvs as unlikely that cars will not take the new systems being installed but hgvs will. .
Interesting development

[PositronicRay]

How efficient is induction loop?

[leyorkie]

It’s experimental so I assume the theory is there

[eldar]

Scalextric is the answer.

[Knock_knock]

PositronicRay said:

How efficient is induction loop?

Static charging, ie park your car over an induction pad, is about 90% efficient, and creeping higher.

It's always struck me as being the perfect solution for on-road parking/charging - next time you dig up the roads put down induction pads.

Moving induction charging is going to be more complicated and less efficient, mainly as the gap between "transmitter" and "receiver" is likely to fluctuate.

[budgie smuggler]

Didn't we have a trial like this in the UK already?

eta: my mistake, it was more of a trolley bus type system and it's not been built yet

https://www.theguardian.com/environment/2021/jul/2...

[TheDeuce]

Knock_knock said:

PositronicRay said:

How efficient is induction loop?

Static charging, ie park your car over an induction pad, is about 90% efficient, and creeping higher.

It's always struck me as being the perfect solution for on-road parking/charging - next time you dig up the roads put down induction pads.

Moving induction charging is going to be more complicated and less efficient, mainly as the gap between "transmitter" and "receiver" is likely to fluctuate.

Less fluctuation likely in the near future as vehicles become more autonomous though - in fact the linear induction rail is in many ways the perfect guide for a vehicle.

However, what the entire planet really needs is simply higher density batteries - which would solve endless problems. Who knows when such batteries will be mass produced and affordable in volume, but once they are, anyone who signed off on billions to electrify the road network is going to look like a bit of a plum.

[Zetec-S]

Knock_knock said:

PositronicRay said:

How efficient is induction loop?

Static charging, ie park your car over an induction pad, is about 90% efficient, and creeping higher.

It's always struck me as being the perfect solution for on-road parking/charging - next time you dig up the roads put down induction pads.

In an ideal world, yes.

But in reality, when was the last time you saw a residential street completely closed off, dug up and resurfaced? It's not feasible to be rolled out on a large scale.

[Knock_knock]

Zetec-S said:

In an ideal world, yes.

But in reality, when was the last time you saw a residential street completely closed off, dug up and resurfaced? It's not feasible to be rolled out on a large scale.

We dig up the roads and pavements and lay gas pipes, water pipes, sewer pipes, phone cables, electrical cables, fibre optics, drainage etc, and then we dig them up again (and again and again) to fix problems with these services.

All roads are subject to entropy so will need work doing to their surfaces over time. The pads aren't even that big or deep, so could be nicely and (relatively) easily fitted.

I would suggest it's entirely feasible.