Live data from Hacker News

Toyota testing improved solar roof for EVs that can charge while driving

techcrunch.com

161–170 of 172 posts

Re: Toyota testing improved solar roof for EVs that can charge while driving

#161
Meanwhile I just discharged 12V battery of my hybrid toyota by sitting inside with phone plugged in and fans running.

There was no warning and now I have to fiddle with cables and second car to get my car to start. All while there's still charge in hybrid batteries that I assume could trickle charge my 12V to help me start the car. But it won't.

Re: Toyota testing improved solar roof for EVs that can charge while driving

#162
post #88

Earlier quoted context omitted.

The efficiency percentage on a solar panel refers to the amount of radiated energy from sunlight that can be converted into electricity. https://en.m.wikipedia.org/wiki/Solar_cell_efficiency Less sure about the 0.03mm but I'm guessing the relevant metric would be thickness or depth.

I know that, its sloppy writing not to state it though.

Kind of an asinine comment then. Presumably anyone reading that article would know about efficiency.

Re: Toyota testing improved solar roof for EVs that can charge while driving

#163

I 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…

Someone mentioned dog mode in a Tesla, but that’s not the only feature that does this. Dog mode or Camping mode is for keeping the interior at something around 20c or whatever you set.

from reading your comment it sounds like you just don’t want the interior to ever get over 35c, which is exactly what the Cabin Overheat Protection mode is. Basically this is a set it and forget it setting that ensures the inside will never go over 100F. You can choose to use ac which kicks it on and off every so often using minimal range, or you can choose for it to only use outside ambient air, granted it if it’s 48c then you are only getting as cold as that.

check out this article and video https://insideevs.com/news/340230/how-much-does-cabin-overhe...

Re: Toyota testing improved solar roof for EVs that can charge while driving

#164
post #162

Earlier quoted context omitted.

I know that, its sloppy writing not to state it though.

Kind of an asinine comment then. Presumably anyone reading that article would know about efficiency.

If you want to take that approach to journalism they could have cut down the length by about 90%, they cud prbly ms ut mst ltrs frm wrds nd yd stl no wht ws sed.

And I still don't know what a solar battery cell film is.

Re: Toyota testing improved solar roof for EVs that can charge while driving

#165

Earlier quoted context omitted.

You mean DRL's? They lead to a significant reduction in crash rate - and since much of a car's carbon impact is tied up in the manufacturing of the car, that is likely a far greater impact than running the DRL's all day. Plus, with LED DRL's becoming more common, the power drain is much less significant than the old incandescent lights. My old car ran the 55W headlights at around 40W each for DRL's. My new car has a…

No, the headlights were unable to be turned off on a friend’s old carolla. Was a while ago though.

That sounds like DRLs... In some cars they use the headlights at reduced power as DRLs.

Re: Toyota testing improved solar roof for EVs that can charge while driving

#166

There's also Sono Motors, a start-up from Munich, Germany. They aim at delivering something they call a SEV (Solar Electric Vehicle) in 2020. They have an interesting concept and more than 10k reservations. https://sonomotors.com/?lang=en

Thanks for sharing the Sono Motors link. The Sion model is to be available in 2021 (or at least that is what I read on their website.) I like this practical little car with energy interface considerations at its core. Solar body panels can add up to 34km range per day, this seems to be a major incremental improvement to the EV model, I think. Sticker price of 25.5k Euro (16k for base and est. 9.5k for battery) and th…

> The Sion model is to be available in 2021 (or at least that is what I read on their website.)

2021 will probably be more realistic for delivery. Though they say in their FAQ that they will start production in the second half of 2020.

Re: Toyota testing improved solar roof for EVs that can charge while driving

#167
post #162

Earlier quoted context omitted.

Kind of an asinine comment then. Presumably anyone reading that article would know about efficiency.

If you want to take that approach to journalism they could have cut down the length by about 90%, they cud prbly ms ut mst ltrs frm wrds nd yd stl no wht ws sed. And I still don't know what a solar battery cell film is.

https://en.m.wikipedia.org/wiki/Thin-film_solar_cell

I think you're being a bit performative with your greivance! Took a few seconds of Googling :-)

Re: Toyota testing improved solar roof for EVs that can charge while driving

#168
post #88

Earlier quoted context omitted.

The efficiency percentage on a solar panel refers to the amount of radiated energy from sunlight that can be converted into electricity. https://en.m.wikipedia.org/wiki/Solar_cell_efficiency Less sure about the 0.03mm but I'm guessing the relevant metric would be thickness or depth.

A quarter to half the thickness of a strand of human hair? That seems like an insane innovation (and difficult to produce/keep reliable in the field).

https://en.m.wikipedia.org/wiki/Thin-film_solar_cell

This does seem to be the case. It's embedded in a laminate.

Re: Toyota testing improved solar roof for EVs that can charge while driving

#169
post #167

Earlier quoted context omitted.

If you want to take that approach to journalism they could have cut down the length by about 90%, they cud prbly ms ut mst ltrs frm wrds nd yd stl no wht ws sed. And I still don't know what a solar battery cell film is.

https://en.m.wikipedia.org/wiki/Thin-film_solar_cell I think you're being a bit performative with your greivance! Took a few seconds of Googling :-)

Performative maybe, but I made my point.

I searched for battery on that page so this isn't the fabled solar battery cell film.

Re: Toyota testing improved solar roof for EVs that can charge while driving

#170

I 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…

Just an idea but maybe you shouldn't run errands at noon anymore? Twice to the ER from running errands seems extreme.
Post reply on HN