Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now

Reply  Post New Thread
Submit Tools LinkBack Thread Tools
Old 08-28-2010, 08:05 PM   #1 (permalink)
Legend in my own mind
trikkonceptz's Avatar
Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
Thanks: 2
Thanked 13 Times in 12 Posts
Easing the Race to extended range Electric Vehicles

Aside from availability, one of the biggest objections to me purchasing an electric vehicle is range. No doubt with time and enough pressure on the gov that will change, however, is anyone working on alternative complimentary technology?

For example, wireless power transfer? I can forsee a trememndous benefit to being able to charge your electric vehicle as you drive long distances. Yes I understand they can never be efficient enough to prevent drainage and indefinately extend your range, but this does open the possibility of being able to charge your vehicle with out plugging it in or while stopped.

And depending on future storage capability extend your range by x percentage.

I found a wiki article on the subject called Wireless Energy transfer, but I also wanted to get your opinions on the subject and its potential future in the auto industry.

Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"

I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

Old 08-28-2010, 09:07 PM   #2 (permalink)
Wiki Mod
Weather Spotter's Avatar
Join Date: Nov 2009
Location: Midland MI, USA
Posts: 2,041

Max - '14 Ford C-Max SEL
Thanks: 228
Thanked 304 Times in 210 Posts
The issue is infrastructure, sending power over air is hard, most systems use magnets or electric coils, to build these into roads would cost $$$$$$. Also the distance is only good to about 3 inches. that makes for tight clearness and even at the distance the power loss is over 20%.

Until they figure a way to get power to move over long distances (over 10' with under 5% loss) it will not happen.

Another thing is how to only send it where you want. Voltage wants to go to ground, it will short out all sorts of thing (any electronics) not to mention you heart.

when those things work it will happen.
  Reply With Quote
Old 08-28-2010, 10:09 PM   #3 (permalink)
Wiki Writer
Join Date: Jul 2010
Location: Melbourne, Australia
Posts: 236

bugler - '91 Mazda 626
90 day: 35.89 mpg (US)
Thanks: 15
Thanked 25 Times in 22 Posts
I agree with weather spotter, wireless power transfer is not workable with current technology. I do remember some people doing work on wireless power transfer using microwaves however in all current technologies the losses are incredibly large therefore making it unworkable.

Since you ask about other range extending technologies there are a few out there I have heard of.
One I did a feasibility study on was a model that involves swapping out batteries packs at service stations. This means you would have a car that can do for example 100 miles using lithium batteries. It is relatively small and light but it will get you to work and back and you can charge it over night. When you go on long trips you can go to a service station part way along your trip drive onto a automatic swapping mechanism in the service station. It swaps your electrically depleted battery pack for a fully charged battery and your on your way again for another 100 or so miles.
A big problem with current EV cars is that most consumers want 400 mile capacity between fill ups / charges so the battery packs are large and heavy, this is one method that can make the technology more feasible. For more info have a look at this website Better Place | The Global Provider of EV Networks and Services. it is promoting the technology

Another method which I think is coming out in some production electric cars soon or already is a complementary onboard generator. So you get some small distance from your normal EV charge but when you run out of power the car switches on the generator and you keep going. The generator I assume runs on standard petrol.
This technology has the benefit that you aren't idling at lights ever, you get engine off coasting for free. But you do have the added losses of generator inefficiency and battery charging inefficiencies.
  Reply With Quote
Old 08-28-2010, 10:40 PM   #4 (permalink)
Left Lane Ecodriver
RobertSmalls's Avatar
Join Date: Aug 2008
Location: Buffalo, NY, USA
Posts: 2,257

Prius C - '12 Toyota Prius C
Thanks: 79
Thanked 284 Times in 197 Posts
Wireless power transfer is a dead end, due to the expense of the transmitters and horrible inefficiency as WS mentioned.

I think the first EV that will be popularly adopted will have fast recharging, and the same range as a human bladder: 300mi at 70mph. Unfortunately, this would take either a great leap in battery density, or consumer acceptance of streamlining (fat chance!).

Meanwhile, PHEV's will do just fine.

Originally Posted by saand View Post
This technology has the benefit that you aren't idling at lights ever, you get engine off coasting for free. But you do have the added losses of generator inefficiency and battery charging inefficiencies.
I'd like to note that currently existing hybrids offer these benefits.
  Reply With Quote
Old 08-29-2010, 01:09 PM   #5 (permalink)
The $500 Electric Car
vpoppv's Avatar
Join Date: Aug 2009
Location: Cushing,Oklahoma
Posts: 430
Thanks: 6
Thanked 26 Times in 20 Posts
Maybe I'm not very creative or I don't have the ability to expand my horizons, but I don't really see EV's getting the same type of mileage as gas cars. Finding a battery that has 10 times the energy density of lithium will bring about a new problem: getting the energy in there. One of the beauties of the electric car is being able to charge at home. I really don't like the Leaf requiring a special outlet. I think it should plug into any outlet. If you start getting into some really monster sized energy density packs, you'll be REQUIRED to look for charging stations that could pump that many electrons into your tank in a reasonable amount of time, as it would need to deliver a serious amount of amperage that most household circuits can't handle. It seems electrics from OEM's can do 100 miles already, which is well over 3 times what the average American drives per day anyway....

BTS | National Household Travel Survey - Daily Travel Quick Facts
  Reply With Quote
Old 08-29-2010, 01:46 PM   #6 (permalink)
EcoModding Lurker
Join Date: Jul 2010
Location: Cleveland, OH
Posts: 89
Thanks: 5
Thanked 7 Times in 5 Posts
most people have to come to terms with the fact that these cars are for commuting. If you're going on a 800mi road trip then plan on stopping to charge or using a gas car. Same as when they came home with the SUV, they can't put aside all the "what if" questions.

  Reply With Quote
Reply  Post New Thread

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric Cars Push Japan Engine Parts Makers to Crisis Mode tjts1 The Lounge 14 12-23-2012 12:47 PM
Ontario suspends registrations of converted electric vehicles (update: ban lifted) MetroMPG Fossil Fuel Free 45 09-25-2010 05:21 PM
New CVT transmission electric-assist with electric assist Ptero Fossil Fuel Free 2 09-23-2010 10:41 PM
100 mile range Ranger EV? Frank Lee Fossil Fuel Free 10 08-05-2010 12:09 PM
Chrysler Expected To Kill Models, Bring Italian Vehicles Ashore Jammer The Lounge 17 06-26-2010 07:29 PM

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com