Comments on: Electric cars go #wireless. Is #induction charging the future for #EVs?

By: Ken Sharp

Ken Sharp — Wed, 13 Feb 2013 16:57:42 +0000

“just because the last part of the process is wireless, that does not mean you don’t need extensive cabling to distribute the electricity”

I really don’t think that’s an issue in a city, do you?

By: outsidethemarginals

outsidethemarginals — Wed, 28 Mar 2012 15:31:00 +0000

induction charging can work while the car is moving and driving over an induction system embedded in the road.

If the car is moving surely it is better to feed the input from the induction system direct to the traction motors rather than suffer the losses due to charging and discharging the onboard batteries.

By: philipgomm

philipgomm — Wed, 28 Mar 2012 15:23:28 +0000

You have a good point. Interesting that the Better Place scheme in Israel and Denmark (amongst others) with Renault is all about battery exchange. Interesting too that Renault has no plans to introduce such a system in the UK. You can see the problems: cost of extra batteries, physical storage space, industry standard battery technology required etc.

By: angelinn

angelinn — Wed, 28 Mar 2012 14:19:10 +0000

Charging will still be in terms of many hours, wireless or plug-in.

The rate of energy transfer in a filling station today is massive – 5 MW if you fuel the car in 6 minutes.

If you want to replicate that you need to physically change batteries for full ones in filling stations.