Go Back   EcoModder Forum > EcoModding > Hypermiling / EcoDriver's Ed
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-20-2011, 07:18 AM   #11 (permalink)
Master EcoModder
 
IamIan's Avatar
 
Join Date: Dec 2010
Location: RI
Posts: 669
Thanks: 368
Thanked 215 Times in 132 Posts
Quote:
Originally Posted by winkosmosis View Post
IamIan, standard halogen headlight bulbs are only 55W each
Quote:
Originally Posted by gascort View Post
New cars are probably less due to LED usage.
Just continue to adjust the general concept for the specific conditions you have.

All else being the same:
~40 MPH + ~40 MPG + ~500 Watt Lights = ~5.7%
~40 MPH + ~40 MPG + ~250 Watt Lights = ~2.8%
~40 MPH + ~40 MPG + ~125 Watt Lights = ~1.4%

~40 MPH + ~20 MPG + ~500 Watt Lights = ~2.8%
~40 MPH + ~20 MPG + ~250 Watt Lights = ~1.4%
~40 MPH + ~20 MPG + ~125 Watt Lights = ~0.75%

~40 MPH + ~80 MPG + ~500 Watt Lights = ~11.4%
~40 MPH + ~80 MPG + ~250 Watt Lights = ~5.7%
~40 MPH + ~80 MPG + ~125 Watt Lights = ~2.8%

~80 MPH + ~40 MPG + ~500 Watt Lights = ~2.8%
~80 MPH + ~40 MPG + ~250 Watt Lights = ~1.4%
~80 MPH + ~40 MPG + ~125 Watt Lights = ~0.75%

~20 MPH + ~40 MPG + ~500 Watt Lights = ~11.4%
~20 MPH + ~40 MPG + ~250 Watt Lights = ~5.7%
~20 MPH + ~40 MPG = ~125 Watt Lights = ~2.8%

etc ... etc...

Faster average speed decreases the impact.
Lower average MPG decreases the impact.
Lower Watts of electrical usage decreases the impact.
Higher ICE average efficiency decreases the impact.
Higher alternator efficiency decreases the impact.
If cycled through the battery the higher the battery cycle efficiency decreases the impact.

  Reply With Quote
The Following 2 Users Say Thank You to IamIan For This Useful Post:
sid (05-22-2011), Vekke (05-30-2011)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-20-2011, 11:53 AM   #12 (permalink)
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
Posts: 5,304
Thanks: 285
Thanked 535 Times in 384 Posts
I don't have DRL's but I do run with lights on all the time - its amazing how it reduces the number of people 'not seeing you' and pulling out.
__________________
[I]So long and thanks for all the fish.[/I]
  Reply With Quote
Old 05-20-2011, 02:30 PM   #13 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location:
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 267 Times in 210 Posts
The other side of that coin is that pedestrians don't have DRLs and get less attention time.
__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Old 05-20-2011, 11:43 PM   #14 (permalink)
Banned
 
Join Date: Dec 2009
Location: NY
Posts: 865
Thanks: 29
Thanked 111 Times in 83 Posts
Quote:
Originally Posted by Arragonis View Post
I don't have DRL's but I do run with lights on all the time - its amazing how it reduces the number of people 'not seeing you' and pulling out.
I grew up in a world where that was considered a legitimate reason for using the HORN.

Yes, I have installed air horns, and they are effective at waking up brain-dead drivers when needed.
  Reply With Quote
Old 05-21-2011, 06:33 AM   #15 (permalink)
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
Posts: 5,304
Thanks: 285
Thanked 535 Times in 384 Posts
Quote:
Originally Posted by dcb View Post
The other side of that coin is that pedestrians don't have DRLs and get less attention time.
Street lighting is much better here than in most countries I have been to including the US, but still those of us with kids do fit them with the equivalents sometimes even in daylight



Quote:
Originally Posted by Thymeclock View Post
I grew up in a world where that was considered a legitimate reason for using the HORN.
I find my approach is less annoying to others not involved in the situation. I've used my (car) horn probably less than twice a year.
__________________
[I]So long and thanks for all the fish.[/I]
  Reply With Quote
Old 05-21-2011, 08:41 AM   #16 (permalink)
Master EcoModder
 
euromodder's Avatar
 
Join Date: Jul 2010
Location: Belgium
Posts: 4,667

GasDwarf - '13 Volkswagen up! EcoFuel CNG
Thanks: 176
Thanked 643 Times in 510 Posts
Quote:
Originally Posted by Arragonis View Post
Street lighting is much better here than in most countries I have been to including the US, but still those of us with kids do fit them with the equivalents sometimes even in daylight
When we've covered everything in fluo, nothing will stand out anymore.


I've had my DRL (which uses the headlights) deactivated by the dealer.
I switch on the lights if and when needed, as I had been doing the 15 years or so before.

DRL have become mandatory fitment on new EU vehicles this year.
These are now usually lower-power LEDs.
  Reply With Quote
Old 05-21-2011, 01:02 PM   #17 (permalink)
Banned
 
Join Date: Dec 2009
Location: NY
Posts: 865
Thanks: 29
Thanked 111 Times in 83 Posts
Quote:
Originally Posted by euromodder View Post
When we've covered everything in fluo, nothing will stand out anymore.


I've had my DRL (which uses the headlights) deactivated by the dealer.
I switch on the lights if and when needed, as I had been doing the 15 years or so before.

DRL have become mandatory fitment on new EU vehicles this year.
These are now usually lower-power LEDs.
How did we get by without DRL's for nearly a century?

DRL's add to the cost of the vehicle. Their imposition certainly benefited bulb manufacturers. I say "imposition" because without providing a switch to turn them off that's what it is - an imposition.
  Reply With Quote
Old 05-21-2011, 06:03 PM   #18 (permalink)
The PRC.
 
Join Date: Oct 2009
Location: Elsewhere.
Posts: 5,304
Thanks: 285
Thanked 535 Times in 384 Posts
I have no problems with DRLs, they seem much better than the alternative which is muppets in heavy rain or even at night operating in "stealth" mode.

Silver Audi, Fog, no lights, 90 mph on the motorway = not clever.
__________________
[I]So long and thanks for all the fish.[/I]
  Reply With Quote
Old 05-21-2011, 06:13 PM   #19 (permalink)
Banned
 
Join Date: Dec 2009
Location: NY
Posts: 865
Thanks: 29
Thanked 111 Times in 83 Posts
Quote:
Originally Posted by Arragonis View Post
I have no problems with DRLs, they seem much better than the alternative which is muppets in heavy rain or even at night operating in "stealth" mode.

Silver Audi, Fog, no lights, 90 mph on the motorway = not clever.
The "no lights" in precipitation and "90 mph" parts are already universally illegal. When everything is made "idiot proof" we will be living is a world where no thinking is required. Unfortunately that trend tends to build upon itself and there will little incentive to be anything more than an idiot. When everything is on auto pilot the need for critical thinking is eliminated.
  Reply With Quote
The Following User Says Thank You to Thymeclock For This Useful Post:
sid (05-22-2011)
Old 05-22-2011, 10:14 AM   #20 (permalink)
A madman
 
brucey's Avatar
 
Join Date: Mar 2008
Location: WV
Posts: 1,012

Pequod - '17 Subaru Outback
90 day: 22.79 mpg (US)
Thanks: 70
Thanked 179 Times in 96 Posts
Send a message via AIM to brucey
I tested this on my car and saw about 2.5% difference. Enough to make me turn them off during the day. The science equations back up my findings.

http://ecomodder.com/forum/showthrea...hts-15179.html

  Reply With Quote
Reply  Post New Thread


Tags
daytime running lights, efficiency, headlights, safety

Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com