Recent Topics
Elliott Sadler To Race For Roush Fenway Racing
by tenderloin
26 minutes 11 seconds ago
Just looked at the new 2015 Ford Mustangs.
by wtd
33 minutes 21 seconds ago
Dex 4 plus additive pkg makes Dex 6 ?
by CKN
33 minutes 48 seconds ago
Is Motorcraft orange coolant really just Dexcool?
by wtd
42 minutes 3 seconds ago
Converting to Fram Synthetic Filter & Penzoil Plat
by OlPalGary
51 minutes 43 seconds ago
Engine failure because of oil filter?
by dlundblad
Today at 03:57 PM
Strange transmission behavior
by spencertimm
Today at 03:52 PM
14 inch cheap rims for winter
by andrewp1998
Today at 03:41 PM
VAG 1.8T Guru
by 2008wrx
Today at 03:39 PM
Mazda Mx-5 2012,mazda oil synth 0w20 5683km
by Baveux
Today at 03:33 PM
True Confessions
by leeharvey418
Today at 03:00 PM
Nun in a Taxi
by Kestas
Today at 02:59 PM
Newest Members
Thourun, Zach72, SandCastle, ymc226, redwoods73
51758 Registered Users
Who's Online
93 registered (901Memphis, 05LGTLtd, 13Tacoma, 01rangerxl, 2008wrx, 97f150, 8 invisible), 1449 Guests and 169 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51758 Members
64 Forums
221478 Topics
3502392 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Page 1 of 2 1 2 >
Topic Options
#3237743 - 01/04/14 09:57 PM Electric Vehicles and US' current cold snap
Shannow Offline


Registered: 12/12/02
Posts: 26878
Loc: a prison island
Seeing EVs touted as the future, the abandonment of discussions regarding cold start idle etc...and that cranking batteries may be down by over 50% on these extreme mornings.

Got me wondering about EVs in the US, particularly the cold.

First up, is it just lead acid that will lose 50% in the extreme cold ?

Secondly, heating how to ?

Top
#3237759 - 01/04/14 10:11 PM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
Ramblejam Offline


Registered: 11/05/13
Posts: 1019
Loc: Kentucky
"In general, Lithium-ion cells cannot be charged below 0 degrees Celsius, which would theoretically prevent charging in cold environments. To overcome this cold weather charging obstacle, the Roadster is designed with a heater to warm the cells (when plugged in) to an appropriate charging temperature. If there were no battery pack heater, drivers living in cold environments would have difficulty charging and experience stunted driving performance.

Likewise, the cells are designed to operate in high-temperature environments. High-performance driving is possible in even the hottest environments of the world. If the temperature rises above a set threshold, the air conditioning unit sends chilled coolant through the pack. Similar to the radiator fan of ICE-powered cars, the chilled coolant continues to circulate after the motor has been turned off to keep the temperature at an appropriate level. Cooling the pack enables a driver to quickly charge immediately after hard driving in hot climates. Without such a cooling system, recharging in hot weather would be delayed after each drive."


http://www.teslamotors.com/roadster/technology/battery

Top
#3237791 - 01/04/14 10:37 PM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
mattwithcats Online   content


Registered: 06/13/13
Posts: 694
Loc: Virginia
Leave car plugged in, start car and turn on the heat / defrost.

Once car is warm inside, (60 - 70) unplug and depart.

Some have a "Departure Time" feature that will pre-warm the car up and have it ready at a preset time...

Don't run the heat unless necessary, use the seat heaters. It's a lot less current draw...

Top
#3237805 - 01/04/14 10:49 PM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
Pablo Offline


Registered: 10/28/02
Posts: 46694
Loc: Duvall WA - Pacific NW USA
I'm a bit paranoid. I brought my LiCoMn batteries inside. Well they are bike batteries so that was easy.

Top
#3237864 - 01/05/14 12:25 AM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
dparm Offline


Registered: 04/19/10
Posts: 12541
Loc: Chicago, IL
Most of them have battery warmers, but range will still suffer.
_________________________
2011.5 BMW M3 saloon ZCP
der stärkste buchstabe der welt
Castrol Edge Professional TWS 10w60 + Mahle OX 254D3

Top
#3237871 - 01/05/14 12:31 AM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
Garak Offline


Registered: 12/05/09
Posts: 11669
Loc: Regina, Saskatchewan, Canada
Originally Posted By: Shannow
Secondly, heating how to ?

Automakers love to brag and show videos of how they test their cars in Death Valley and in the Arctic. I would like to see the same with EVs, particularly in the Arctic. Let's see how warm an interior gets when it's -40 outside. wink
_________________________
Plain, simple Garak.

2008 Infiniti G37 coupe - Mobil Delvac 1 ESP 5w-40, Hastings LF113
1984 F-150 4.9L six - Quaker State GB 10w-30, Wix 51515

Top
#3237888 - 01/05/14 12:59 AM Re: Electric Vehicles and US' current cold snap [Re: dparm]
Miller88 Offline


Registered: 04/09/08
Posts: 6857
Loc: Onondaga County
Originally Posted By: dparm
Most of them have battery warmers, but range will still suffer.


The fit ev suffers really bad. Goes from like 60 mile to 15 mile range
_________________________
'11 Focus PYB 45K
'00 Cherokee PYB 125K

Top
#3237913 - 01/05/14 04:23 AM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
oilmaven Offline


Registered: 05/25/05
Posts: 658
Loc: Northern Michigan
GM has had issues with the electric heating system in the Volt. Owners have complained of woefully inadequate heating during EV driving mode in cold temps. The only solution is stronger electric heaters with the higher draw/lower range penalty they exact (not sure if the newer models have addressed the heating issue). It's predicted to get to -25F here by tomorrow night...seat heaters don't cut it when it's that cold (though they help a lot during milder weather).
_________________________
2010 Suzuki Kizashi-Pennzoil Ultra 5W30
1999 Mercury Villager-Pennzoil Ultra 5W30

Top
#3237915 - 01/05/14 05:11 AM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
Rick in PA Offline


Registered: 01/04/03
Posts: 2179
Loc: Southeastern, PA
There's always a good old fashioned gasoline fired heater:



Oh yeah, there's the issue of getting gasoline to it, minor problem. grin


Edited by Rick in PA (01/05/14 05:12 AM)
_________________________
"Heat is your friend."

Top
#3237922 - 01/05/14 05:55 AM Re: Electric Vehicles and US' current cold snap [Re: mattwithcats]
dlundblad Offline


Registered: 09/30/13
Posts: 1839
Loc: Indiana
Originally Posted By: mattwithcats
Don't run the heat unless necessary, use the seat heaters. It's a lot less current draw...



So for good mileage you have to go without heat.. Hybrids are great! LOL
_________________________
2003 Jeep Grand Cherokee 4.0
PYB 10w30/ Mopar Mo-090


Top
#3237942 - 01/05/14 06:34 AM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
Nebroch Offline


Registered: 05/16/13
Posts: 186
Loc: Finland
...or you can improve insulation, AC behaviour and waste heat management to get the heat up. Traditional cars have plenty of waste heat to use for heating purposes, so it hasn't gained much attention until now.

Top
#3237944 - 01/05/14 06:41 AM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
Shannow Offline


Registered: 12/12/02
Posts: 26878
Loc: a prison island
Starting at -30, insulation doesn't gain much while the interior thermal mass gets up to temperature...and all the heat that is required to do so comes from the grid...which has already given up it's inefficiencies.

Top
#3237945 - 01/05/14 06:45 AM Re: Electric Vehicles and US' current cold snap [Re: Nebroch]
dlundblad Offline


Registered: 09/30/13
Posts: 1839
Loc: Indiana
Originally Posted By: Nebroch
...or you can improve insulation, AC behaviour and waste heat management to get the heat up. Traditional cars have plenty of waste heat to use for heating purposes, so it hasn't gained much attention until now.


This is correct, but it also shows yet again that hybrids are still a work in progress. Great concept. I'm sure they do excellent in moderate temps where the AC and heat don't have to be ran.. but for the person who lives in the colder or hotter temps they might as well be driving a diesel Jetta for fuel economy.
_________________________
2003 Jeep Grand Cherokee 4.0
PYB 10w30/ Mopar Mo-090


Top
#3237965 - 01/05/14 07:28 AM Re: Electric Vehicles and US' current cold snap [Re: Shannow]
NHGUY Offline


Registered: 10/09/11
Posts: 3397
Loc: USA
I'm surprised some didnt install wood stoves in the back seat,so mileage wouldnt suffer.Oh yea,theres the issue of the emissions from burning the wood...EPA wouldnt approve...

Top
#3237985 - 01/05/14 07:59 AM Re: Electric Vehicles and US' current cold snap [Re: NHGUY]
Cujet Offline


Registered: 02/15/03
Posts: 4214
Loc: Jupiter, Florida
Originally Posted By: NHGUY
I'm surprised some didnt install wood stoves in the back seat,so mileage wouldnt suffer.Oh yea,theres the issue of the emissions from burning the wood...EPA wouldnt approve...


Hahahahaa! That sounds exactly like something I'd say.....
_________________________
Turbo's rule.

Top
Page 1 of 2 1 2 >