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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 03-31-2015, 02:08 PM   #311 (permalink)
home of the odd vehicles
 
rmay635703's Avatar
 
Join Date: Jun 2008
Location: Somewhere in WI
Posts: 2,658

Silver - '10 Chevy Cobalt XFE
Thanks: 224
Thanked 419 Times in 316 Posts
Quote:
Originally Posted by Astro View Post
Would it be possible to preheat the batteries at home and thermally insulate the battery rack?
If the system already has a battery heater in it then maybe it could be ran from the wall outlet whilst in the garage.
Get the batteries up to a decent temperature without using any of the battery capacity.
The closest to this I have come is to have the charge timer set so the batteries are fully charged until just before I need to depart, trouble is you really need the car to idle about a half hour before departing without draining the battery to get the battery heated up, this is only really possible on 220v

In terms of insulation there is only room to do it up on top of the battery, to the sides is a person (me)

Ah well, my volt is in the shop because I finally hit a deer

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 03-31-2015, 04:05 PM   #312 (permalink)
Ecomuggler
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Mesa, AZ
Posts: 5,456

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 40.43 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 33.68 mpg (US)
Thanks: 3,273
Thanked 918 Times in 687 Posts
Quote:
Originally Posted by rmay635703 View Post
Ah well, my volt is in the shop because I finally hit a deer
I am glad that you seem to have avoided needing a shop yourself.
  Reply With Quote
Old 04-01-2015, 01:55 AM   #313 (permalink)
Dreamer
 
Join Date: Nov 2013
Location: Australia
Posts: 350
Thanks: 95
Thanked 210 Times in 150 Posts
Quote:
Originally Posted by rmay635703 View Post
The closest to this I have come is to have the charge timer set so the batteries are fully charged until just before I need to depart, trouble is you really need the car to idle about a half hour before departing without draining the battery to get the battery heated up, this is only really possible on 220v
Ok, here's a crazy idea, probably not suitable for a commercially made vehicle (or any vehicle ).
But how about a low loss capacitive setup where the batteries charge up some capacitors and then the capacitors return the charge to the batteries. Not talking about the whole battery charge just a tiny portion. Like a mini charge and discharge cycle. Repeat the cycle over and over and the batteries would get heated and if losses could be minimised then maybe it would use less power overall compared to having the car on idle for a prolonged time.
In each cycle there would be heat generated in the batteries on both the charge and discharge portion of the cycle.
Maybe even have it integrated into the controller and use the controllers capacitors and ability to feed regen back to the batteries?
  Reply With Quote
Old 04-26-2015, 10:08 PM   #314 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 6,740

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 1,882
Thanked 1,867 Times in 1,125 Posts
The weather is warming up, and driving efficiency gets better proportionately.

On a recent charge in the Leaf, I got just under 220Wh/mile, or ~153MPe.

I am popping it into neutral by shifting into R - above 7MPH this puts it instantly into neutral. The Nokian Hakka R2's are wonderful - I will have to put the stock Ecopia's on it soon (a week from tomorrow), and I will see how they compare.
__________________
Sincerely, Neil



http://neilblanchard.blogspot.com/
  Reply With Quote
The Following User Says Thank You to NeilBlanchard For This Useful Post:
sendler (04-26-2015)
Old 04-27-2015, 11:55 AM   #315 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 10,326

CM400E - '81 Honda CM400E
90 day: 39.62 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's 04 Civic - '04 Honda Civic DX
90 day: 44.54 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Thanks: 1,842
Thanked 2,012 Times in 1,235 Posts
I'm quite curious to see what kind of wh/mile a good ecodriver like yourself can get out of your electric cars.
__________________
Current project: Heating the manual trans with engine coolant
  Reply With Quote
Old 04-27-2015, 12:35 PM   #316 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 19,685

Blackfly - '98 Geo Metro
Team Metro
90 day: 70.72 mpg (US)

ForkenSwift - '92 Geo Metro EV
Last 3: 95.68 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 47.99 mpg (US)
Thanks: 2,145
Thanked 4,917 Times in 2,472 Posts
Quote:
Originally Posted by NeilBlanchard View Post
I am popping it into neutral by shifting into R - above 7MPH this puts it instantly into neutral.
Using Reverse because there is no Neutral?
__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 04-27-2015, 01:16 PM   #317 (permalink)
Master EcoModder
 
P-hack's Avatar
 
Join Date: Oct 2012
Location: USA
Posts: 1,408

awesomer - '04 Toyota prius
Thanks: 102
Thanked 249 Times in 201 Posts
It is a quick way to get it into neutral, otherwise you have to hold it in neutral for a second. Turns out the prius goes immediately to neutral if you put it in reverse too (above 7mph).

And you have to put it back in drive to get regen back (obvi)
  Reply With Quote
Old 04-27-2015, 01:19 PM   #318 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 19,685

Blackfly - '98 Geo Metro
Team Metro
90 day: 70.72 mpg (US)

ForkenSwift - '92 Geo Metro EV
Last 3: 95.68 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 47.99 mpg (US)
Thanks: 2,145
Thanked 4,917 Times in 2,472 Posts
When I was a young-un I accidentally discovered my parents' Caprice station wagon would stall the engine if you put it in reverse above 7 mph.

Kids.
__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
The Following User Says Thank You to MetroMPG For This Useful Post:
Cd (05-12-2015)
Old 04-27-2015, 01:31 PM   #319 (permalink)
Master EcoModder
 
NeilBlanchard's Avatar
 
Join Date: May 2008
Location: Maynard, MA Eaarth
Posts: 6,740

Mica Blue - '05 Scion xA RS 2.0
Team Toyota
90 day: 42.48 mpg (US)

Forest - '15 Nissan Leaf S
Team Nissan
90 day: 156.46 mpg (US)

Number 7 - '15 VW e-Golf SEL
TEAM VW AUDI Group
90 day: 155.81 mpg (US)
Thanks: 1,882
Thanked 1,867 Times in 1,125 Posts
Quote:
Originally Posted by Daox View Post
I'm quite curious to see what kind of wh/mile a good ecodriver like yourself can get out of your electric cars.
I am looking forward to the warm weather, to see how well I can do.

A caveat with EV's is that most people cannot measure the actual charge, and I think that most of the other EV drivers are going by the dashboard readout of miles / kWh, which is roughly 15% higher than the actual charge, because of the wall-to-wheel losses. That and also the odometer on most is either slightly or quite optimistic.

Oddly, NONE of the EV specific forums have an energy log "garage", so I am glad the EM does.
__________________
Sincerely, Neil



http://neilblanchard.blogspot.com/
  Reply With Quote
Old 04-27-2015, 07:01 PM   #320 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 9,033
Thanks: 1,959
Thanked 2,939 Times in 2,297 Posts
Your Mileage May Vary... - EVTV Motor Verks

This points out that watt-hours/mile depends on the state of charge of the battery pack, IOW the first mile comes easier than the last one.

Quote:
And so we came up with a rule of thumb. And that rule, based on just our own outcomes, was that for every 10 lbs of car, it will require 1 Watt hour of energy to cover 1 mile of travel.
Quote:
Would you believe that Tesla Model S did VERY well on this at 12.22:1? While the SmartforTwoED, which we have found their corporate management none to Smart, is predictably enough down around 6.5.
Here's their chart:


  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com