Notices
Car Chat General discussion about Lexus, other auto manufacturers and automotive news.
Sponsored by:
Sponsored by: Innova

Toyota--first to use solar technology

Thread Tools
 
Search this Thread
 
Old Jul 6, 2008 | 10:49 PM
  #16  
leedogg's Avatar
leedogg
Lead Lap
 
Joined: Apr 2007
Posts: 476
Likes: 0
From: md
Default

You are being very vague as there have been numerous solar powered kit cars built by Universities, however, even in terms of commercial vehicles:

With 3.6 sqm of photovoltaic cells giving an exceptional yield of 21%, and covered by a film composed of nano-prisms enabling denser concentration of solar energy, Astrolab is the first high-performance solar and electric car to be commercialised in the world.
http://www.venturi.fr/electric-vehic...b-concept.html
Reply
Old Jul 7, 2008 | 04:41 AM
  #17  
ES350Bob's Avatar
ES350Bob
Lexus Champion
 
Joined: Aug 2006
Posts: 2,766
Likes: 2
From: Florida
Default

Originally Posted by LexusIS-TL
Once again, Toyota is challenging other manufacturers to bring new innovations to the car industry. Toyota will use solar panels on their Toyota Prius lines in 2009, it appears but not set in stone yet.

http://www.abc.net.au/news/stories/2...07/2296277.htm
Seems the article might have been titled:


Audi challenges...seems was the first automaker to use solar panels on a production vehicle

Canadian engineer challenges

http://www.greencarcongress.com/2005...oweraugme.html

Solar-Power-Augmented Prius Takes the Grid Out of “Plug-in”
15 August 2005

Lapp’s PV Prius
A Canadian engineer has prototyped a Photovoltaic Prius—a 2001 Prius augmented with roof-top solar panels and an additional battery system to supplement the charge in the original equipment NiMH batteries.
Steve Lapp’s PV Prius is still a rough prototype—a demonstration of concept—but even with the limitations of the systems, he has achieved an initial 10% fuel efficiency improvement from 4.5 l/100km (52 mpg US) to 4.0 l/100km (59 mpg US).
Reply
Old Jul 7, 2008 | 06:27 AM
  #18  
Gojirra99's Avatar
Gojirra99
CL Community Team
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2002
Posts: 30,277
Likes: 354
From: Canada
Default


Toyota to fit solar panels to next-generation Prius

Posted on Monday 7 July 2008


There are already a number of independent firms that will retro-fit solar panels to the roofs of hybrid vehicles like the Toyota Prius to help extend the car’s electric-only driving range, however, from next year onwards the Prius will be available with the panels direct from the factory. The new Prius is set to be revealed at next year’s Detroit Auto Show before going on sale around April.

According to latest reports, high-end versions of the car will be fitted with solar panels to power ancillary features such as the air conditioning system. The news comes from Japan’s Nikkei economic daily, which also reported that up to 450,000 units of the new Prius will be manufactured next year.

Toyota refused to comment on the report.

Retro-fitting solar panels to the current Prius can yield fuel savings of up to 29% depending on driving style. However, the costs of installing the panels can range from anywhere between $2,000 and $4,000.

Toyota’s next-generation Prius is expected to also receive a larger and more powerful 1.6L engine and will eventually be offered with a plug-in hybrid powertrain. Despite being bigger and more powerful, fuel consumption will be improved. Toyota will do this by installing a more efficient powertrain with improved batteries for longer electric-only driving plus a lighter body thanks to extensive use of advanced composites in its construction. The lightweight construction concept was first previewed by the 1/X concept (pictured) from last year’s Tokyo Motor Show.
source
Reply
Old Jul 7, 2008 | 06:48 AM
  #19  
MadMax96's Avatar
MadMax96
Lexus Test Driver
 
Joined: Nov 2005
Posts: 1,209
Likes: 3
From: IL
Default

Originally Posted by GFerg
Yea, I was just about to bring that up. Its been an option since the mid 1990's on A8's. However, unless they updated the system, it was used to only ventilate the car during hot days (no A/C).

But it would be cool if you could recharge the batteries using solar power instead of plugging it in to an outlet.
Although it didn't use it for A/C - don't forget the Mazda 929 (1992)- it had solar panels in the moonroof to cool the car while parked. I'm sure it wasn't as sophisticated as the Audi's though...
Reply
Old Jul 7, 2008 | 07:06 AM
  #20  
TRDFantasy's Avatar
TRDFantasy
Lexus Fanatic
20 Year Member
 
Joined: Jan 2005
Posts: 7,285
Likes: 0
From: A better place
Default

Originally Posted by GFerg
Any info on how that works? Never heard of it.
The system works by recovering exhaust heat energy and uses it to heat engine coolant. That reduces engine warm-up time and cold starts, improving overall efficiency and fuel economy.
Reply
Old Jul 7, 2008 | 03:06 PM
  #21  
bagwell's Avatar
bagwell
Lexus Champion
20 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Oct 2002
Posts: 11,204
Likes: 11
From: The Woodlands, TX
Default

Originally Posted by MadMax96
Although it didn't use it for A/C - don't forget the Mazda 929 (1992)- it had solar panels in the moonroof to cool the car while parked. I'm sure it wasn't as sophisticated as the Audi's though...
don't forget walmart sells a solar powered fan you can stick on your windows

Toyota will be the first to let the electronic compressor run on solar...DENSO's electric compressor is driven by an integrated motor and is able to provide air conditioning even while the vehicle is stopped. As a result, in hybrid vehicles with engines that automatically shut down when the vehicles stop, the electric compressor provides a comfortable air-conditioned cab environment in addition to fuel efficiency.
Reply
Old Jul 7, 2008 | 03:28 PM
  #22  
carguy101's Avatar
carguy101
Lead Lap
 
Joined: Jun 2007
Posts: 447
Likes: 0
From: CA
Default

So... does this mean that the Prius will be more efficient in sunny places like southern Cali?
Reply
Old Jul 7, 2008 | 03:52 PM
  #23  
TRDFantasy's Avatar
TRDFantasy
Lexus Fanatic
20 Year Member
 
Joined: Jan 2005
Posts: 7,285
Likes: 0
From: A better place
Default

Originally Posted by carguy101
So... does this mean that the Prius will be more efficient in sunny places like southern Cali?
In theory yes, but don't forget that solar panels work even when it's cloudy. The sun's rays still penetrate through clouds (although not as strong as on a clear sunny day), even if they're not visible to the human eye.

When it's cloudy though, it typically is not as hot. Thus, it will be very intuitive. The solar panels will work their best when it's very sunny outside, and typically those will be the days where A/C is needed the most.
Reply
Old Jul 7, 2008 | 04:03 PM
  #24  
vntperform's Avatar
vntperform
Racer
20 Year Member
Photogenic
Liked
Loved
iTrader: (15)
 
Joined: Apr 2004
Posts: 1,840
Likes: 7
From: Severn, Maryland
Default

Originally Posted by mavericck
My neighbors A8 has solar panels that run its air conditioning system. How is Toyota "first" to do this? It is a $790 option from Audi......
I'm sure the toyota option will be quite reliable compared to the audi...
Reply
Old Jul 7, 2008 | 10:19 PM
  #25  
bitkahuna's Avatar
bitkahuna
CL Community Team
iTrader: (20)
 
Joined: Feb 2001
Posts: 80,844
Likes: 4,018
Default

Originally Posted by TRDFantasy
The solar panels will work their best when it's very sunny outside, and typically those will be the days where A/C is needed the most.
Not so great if you park in a garage. Yes, it will generate juice while driving but with such a small solar array, I'd be surprise if it could run the AC much.

Maybe they should name the new Prius "WALL-E".
Reply
Old Jul 7, 2008 | 10:33 PM
  #26  
newr's Avatar
newr
Lexus Champion
 
Joined: Aug 2005
Posts: 1,751
Likes: 0
From: CA
Default

http://green.yahoo.com/news/nm/20080...toyota_dc.html

Kentaro Endo, a director at Japan's Ministry of Economy, Trade and Industry who specializes in renewable energy, said the application of solar energy was severely limited in vehicles.

"Even if you laid solar panels out on the entire roof of a house, you only generate enough energy to run two hair dryers," he said.

"It's an interesting idea, but it would be very difficult to power a whole car, even with technological advances."
Reply
Old Jul 8, 2008 | 10:36 AM
  #27  
bitkahuna's Avatar
bitkahuna
CL Community Team
iTrader: (20)
 
Joined: Feb 2001
Posts: 80,844
Likes: 4,018
Default

^^^^ rofl. I present the new, state of the art, solar-powered Prius air conditioning
Attached Images  

Last edited by bitkahuna; Jul 9, 2008 at 08:40 PM.
Reply
Old Jul 9, 2008 | 01:00 PM
  #28  
Sal Collaziano's Avatar
Sal Collaziano
Lexus Test Driver
 
Joined: Nov 2002
Posts: 904
Likes: 3
From: Florida
Default

This is very interesting and I'd love to see it become a reality. I have no idea why so many people across so many forums are being so critical about it. It's an excellent idea...
Reply
Old Jul 9, 2008 | 05:30 PM
  #29  
bagwell's Avatar
bagwell
Lexus Champion
20 Year Member
Photogenic
Photoriffic
Liked
 
Joined: Oct 2002
Posts: 11,204
Likes: 11
From: The Woodlands, TX
Default

supposedly the electric compressor vs engine driven compressor provides a 19% MPG gain??

http://www.epa.gov/cppd/Presentation...20inverter.pdf
Reply
Old Jul 9, 2008 | 10:18 PM
  #30  
LexFather
Guest
 
Posts: n/a
Default

Also doesn't this add weight to the roof and car? I know its no performance car but you don't want more weight up top.
Reply



All times are GMT -7. The time now is 06:42 AM.