backtop


Print 29 comment(s) - last by Dan Banana.. on Mar 5 at 9:01 PM

Wireless charging technology uses magnetic induction

Several things need to happen before the electric vehicle or plug-in hybrid becomes common on the mainstream auto market. These vehicles need a longer driving range, the technology needs to come down in price, and changes in how the vehicles charge are needed. Namely, the charging would ideally be done without wires so the driver wouldn’t have to remember to plug in when they get home.
 
Audi is working on wireless charging technology using WiTricity technology. Audi is rather mum on the details of its wireless charging initiative, so we only have a general overview of what it has in mind. With the system, power is transferred from an inductive charging point to the vehicle using a magnetic field when the vehicle is in the proper charging position.
 
This technology would allow the driver to simply pull into their garage or driveway and charging would automatically start. The system uses two WiTricity coils with one in the parking lot (or driveway/garage) and another integrated into the car’s charging system. Power would be transferred between those two coils to charge the vehicle batteries.


Audi e-tron Spyder Concept
 
Project Leader Dr. Björn Elias says, "We aim to offer our customers a premium-standard recharging method – easy to use and fully automatic, with no mechanical contacts. It uses the induction principle, which is already well known from various products, from the electric toothbrush through the induction cooker hotplate. We are now using it to recharge cars."
 
The primary coil would be located in the garage or in the driveway, and could be placed beneath a surface like concrete or asphalt. It would not be affected by rain, ice, or snow and there's no risk of shock to humans or animals.
 
Audi envisions a future where the charging coils are integrated into surfaces such as home driveways or parking spots in parking garages.
 
Dr. Elias outlines a medium-term scenario, "Imagine you drive to work in your Audi e-tron, and on the way home you stop off at the store. Wherever you park the car, its battery will be recharged – perhaps even at traffic signals. These short recharging cycles are ideal for the battery: the smaller the difference between the values before and after recharging, the longer the battery's potential operating life."

Source: Autoblog Green





Comments     Threshold


This article is over a month old, voting and posting comments is disabled

Who pays for the electricity?
By DiscoWade on 3/2/2012 9:01:03 AM , Rating: 2
quote:
Dr. Elias outlines a medium-term scenario, "Imagine you drive to work in your Audi e-tron, and on the way home you stop off at the store. Wherever you park the car, its battery will be recharged – perhaps even at traffic signals."


Let us assume that it is feasible to recharge the car while at a stop light, while at a store, and so on. At home, you would pay for the electricity to recharge the batteries. But what about away from home? Electric companies aren't going to keep the induction chargers going because they like you. Plus, unless electric cars are the majority of vehicles on the road, there is a lot of waste.

In my mind, the one thing that will keep this idea shelved is figuring out how to make those who use this technology pay for the electricity they use.

My only idea is to fit each EV with a RFID. When a vehicle is over a charging pad, it reads the RFID. Then the charging pad communicates with a central network that holds the information where a bill can be sent. The charging pad will also work on authenticating the vehicle to make sure the RFID isn't forged. After all checks have passed, the vehicle begins to charge until the charging pad detects the vehicle has moved. This idea will require each charging pad to be connected to the internet. All that will be expensive. Who is going to pay?




"There is a single light of science, and to brighten it anywhere is to brighten it everywhere." -- Isaac Asimov
Related Articles
Audi e-tron E1 Concept Spied in Berlin
August 11, 2011, 2:34 PM






Most Popular ArticlesTop 5 Smart Watches
July 21, 2016, 11:48 PM
Free Windows 10 offer ends July 29th, 2016: 10 Reasons to Upgrade Immediately
July 22, 2016, 9:19 PM







botimage
Copyright 2016 DailyTech LLC. - RSS Feed | Advertise | About Us | Ethics | FAQ | Terms, Conditions & Privacy Information | Kristopher Kubicki