I wonder if there is a market for a car cover that acts like a flexible solar blanket. Here in Texas it could offer your vehicle some protection from the Sun while charging it at the same time.
Toyota testing improved solar roof for EVs that can charge while driving
51–60 of 172 posts
Re: Toyota testing improved solar roof for EVs that can charge while driving
#52I live in a pretty hot city (My car's outside thermometer showed 48°C yesterday at midday). The extended range is nice and all, but if somebody makes a car that can run the AC without running/draining the battery while it's parked, even if it's just a little to keep the car interior at 35°C or so, I would, without exaggeration, buy it the day it's released here. Hell, I'd consider it even if it would just keep the fa…
In theory, the solar roof should absorb ~30% of the rays a cars is exposed to, so it won't heat up as much. Not sure if the effect would be significant, though.
Re: Toyota testing improved solar roof for EVs that can charge while driving
#53Earlier quoted context omitted.
I'm not sure how true that would be in extremely hot weather, but it is probably the only reason I'm considering a Tesla if it ever comes to my city, my commute is really short so even if it cut 200 miles off the range it'd be worth it for me. Having a car with remote start alleviates the problem a little bit, but I'd rather not run an ICE engine while I'm not in the car for obvious reasons.
Even on constant full blast with the smallest battery Tesla sells, it's only gonna use ~2-3% per hour. Over 8 hours that would be 44 miles off the 220 mile range. > but it is probably the only reason I'm considering a Tesla if it ever comes to my city Hmm, Telsa should be pretty reachable. Perth and El Paso look like some of the only neglected hot cities.
Re: Toyota testing improved solar roof for EVs that can charge while driving
#54I live in a pretty hot city (My car's outside thermometer showed 48°C yesterday at midday). The extended range is nice and all, but if somebody makes a car that can run the AC without running/draining the battery while it's parked, even if it's just a little to keep the car interior at 35°C or so, I would, without exaggeration, buy it the day it's released here. Hell, I'd consider it even if it would just keep the fa…
It would also be cool, pun intended, to add windows with liquid crystals that can darken when parked to keep additional heat out.
You can't use LCs, as they don't have a real "clear" mode- they always block a very significant amount of light. You'd have to use electrochromatic paint or similar, as some trains and airplanes do. It's expensive and a chipped windscreen would be awful. You also can't get great resolution. I still wish somebody would do it.
Re: Toyota testing improved solar roof for EVs that can charge while driving
#55Earlier quoted context omitted.
In theory, the solar roof should absorb ~30% of the rays a cars is exposed to, so it won't heat up as much. Not sure if the effect would be significant, though.
It would help but the glass windows (greenhouse effect) are probably a bigger factor.
Re: Toyota testing improved solar roof for EVs that can charge while driving
#56I live in a pretty hot city (My car's outside thermometer showed 48°C yesterday at midday). The extended range is nice and all, but if somebody makes a car that can run the AC without running/draining the battery while it's parked, even if it's just a little to keep the car interior at 35°C or so, I would, without exaggeration, buy it the day it's released here. Hell, I'd consider it even if it would just keep the fa…
2015 and later variants of the Prius already have this via the solar roof option: https://www.jpauleytoyota.com/blog/how-does-the-toyota-prius... “If you want to activate the solar powered ventilation system before you get out of the vehicle it is a simple process. On the left side of the steering column, you will find a small square button with a car and fan on it. Press this button before you turn off your vehicle…
Re: Toyota testing improved solar roof for EVs that can charge while driving
#57Earlier quoted context omitted.
They use their Tesla like a fridge for only 10-20 miles reduction????? That's amazing both in it's apparent wastefulness and efficiency. If that's the same scale, solar charging could easily keep your AC and stereo on while you wait.
I believe they just set the cooling to around 64F to keep pastries from melting etc. First world problems for sure.
Re: Toyota testing improved solar roof for EVs that can charge while driving
#58Earlier quoted context omitted.
Even on constant full blast with the smallest battery Tesla sells, it's only gonna use ~2-3% per hour. Over 8 hours that would be 44 miles off the 220 mile range. > but it is probably the only reason I'm considering a Tesla if it ever comes to my city Hmm, Telsa should be pretty reachable. Perth and El Paso look like some of the only neglected hot cities.
I don't live in the US, as far as I'm aware there's only one Tesla store in my country and it's nowhere near me.
https://www.tesla.com/findus?v=2&bounds=67.51085725091038%2C...
Re: Toyota testing improved solar roof for EVs that can charge while driving
#59Earlier quoted context omitted.
Yes looks like GaAs: https://global.toyota/en/newsroom/corporate/28787347.html
If they can bring the cost down on that, for other types of panel manufacturing for non automotive markets, that would be pretty amazing. 22% monocrystalline silicon 156mm cells are a commodity now (such as to build a 60 or 72 cells panel with and sell it under $0.60/watt), but 30 to 34% GaAs cells are incredibly expensive. Until very recently GaAs triple junction cells have been so costly they are only used on satel…
Re: Toyota testing improved solar roof for EVs that can charge while driving
#60"This demo car’s prototype cells can convert solar energy at 34% and up"
34% what?
"Using a redesigned solar battery cell film that measures only 0.03 mm"
0.03mm wide? Long? And what's a solar battery cell film???