You are here: PriusChat Forums


Go Back   PriusChat Forums > Gen II (2004-2009) Toyota Prius Forums > Gen II Prius Fuel Economy
Connect with Facebook


This is a discussion on How does the EV mod affect your mileage? within the Gen II Prius Fuel Economy forums, part of the Gen II (2004-2009) Toyota Prius Forums category; <div class='quotetop'>QUOTE(ServoScanMan @ Nov 17 2007, 05:42 PM) [snapback]541034[/snapback]</div> I'm not sure what your defintion of 'marked' is. My fuel ...


How does the EV mod affect your mileage?

Reply
 
LinkBack Thread Tools
Old 11-17-2007, 08:57 PM   #11
omgitsroy326
Senior Member
 
Join Date: Nov 2007
Location: Los Angeles
Posts: 262
My Car: 2008 Prius
Model:
Package: #2
Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 0
Default

<div class='quotetop'>QUOTE(ServoScanMan @ Nov 17 2007, 05:42 PM) [snapback]541034[/snapback]</div>
Quote:
I'm not sure what your defintion of 'marked' is. My fuel economy has improved with the EV mode switch.
[/b]

if my commute is two miles local .. then can i just use my ev switch the entire way granted i stay under say 35 mph and i have enough battery bars?

omgitsroy326 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 11-17-2007, 10:03 PM   #12
statultra
uber-Senior Member
 
statultra's Avatar
 
Join Date: Dec 2005
Location: cape coral, FL
Posts: 682
My Car: 2005 Prius
Model:
Package: #9
Thanks: 0
Thanked 4 Times in 3 Posts
Friends: 0
Default

i use it to get from my driveway to the main road, ( its about a half mile ) then the main road has speed limit of 45 so i just disengage it.

I do this to avoid warmup cycle sitting still, instead i find that avoiding the warmup cycle sitting still is more efficent, usually when i drive home i keep the cruise on so my battery goes up to the top, so the next morning i can use EV till i get to main road


statultra is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 11-20-2007, 11:54 PM   #13
9G-man
Senior Member
 
Join Date: Jul 2005
Location: Atlanta, GA
Posts: 843
My Car: 2007 Prius
Model:
Package: #5
Thanks: 1
Thanked 11 Times in 6 Posts
Friends: 0
Default

<div class='quotetop'>QUOTE(omgitsroy326 @ Nov 17 2007, 10:57 PM) [snapback]541072[/snapback]</div>
Quote:
if my commute is two miles local .. then can i just use my ev switch the entire way granted i stay under say 35 mph and i have enough battery bars?
[/b]
Depends on the topography of your commute. Any uphills? that will wipe your SOC quick...1/8-1/4 mile and you'll be left with a running ICE>
And even if you do pull it off, then you reach your destination with low SOC and must run ICE on the way back, which may not return SOC to a high level, thus you won't do it again the next day.
Good candidate for PHEV.
9G-man is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-03-2008, 03:41 PM   #14
lowredranger
Junior Member
 
Join Date: Aug 2008
Location: Orlando, FL
Posts: 3
My Car: 2008 Prius
Model:
Package: #2
Thanks: 0
Thanked 0 Times in 0 Posts
Friends: 0
Default Re: How does the EV mod affect your mileage?

So do you use your EV switch at highway speeds when pulsing and gliding to turn off the engine when you get to 75mph and turn it back on at 65mph to gain back up to speed?
lowredranger is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-03-2008, 04:00 PM   #15
qbee42
Senior Member
 
qbee42's Avatar
 
Join Date: Mar 2006
Location: Northern Michigan
Posts: 10,486
My Car: 2006 Prius
Model:
Package: #7
Thanks: 95
Thanked 391 Times in 290 Posts
Friends: 10
Default Re: How does the EV mod affect your mileage?

Quote:
Originally Posted by lowredranger View Post
So do you use your EV switch at highway speeds when pulsing and gliding to turn off the engine when you get to 75mph and turn it back on at 65mph to gain back up to speed?
No, it won't do that. The EV switch will ask the control system to run in electric mode if possible. Electric mode is not possible at speeds above the low 40s. Mostly the EV switch is good for moving a short distance in a parking lot, or reducing the amount of warm up the engine does.

Tom
qbee42 is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-03-2008, 07:37 PM   #16
Navigator
Junior Member
 
Join Date: Jan 2008
Location: Fullerton, CA
Posts: 22
My Car: 2008 Prius
Model:
Package: #5
Thanks: 0
Thanked 1 Time in 1 Post
Friends: 0
Default Re: How does the EV mod affect your mileage?

I notice that on my commute, my worst mileage is almost always when first accelerating from a stoplight. Using the pedal alone, I cannot quite keep the car in EV mode without obstructing traffic, even though I almost always have green bars. So, what about using the EV switch to get off the line and then just let the mode switch back to normal at 34 MPH?
Navigator is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-03-2008, 09:47 PM   #17
JimboK
One owner, low mileage
 
JimboK's Avatar
 
Join Date: May 2006
Location: Chesterfield, VA
Posts: 2,549
My Car: 2005 Prius
Model:
Package: #2
Thanks: 4
Thanked 89 Times in 70 Posts
Friends: 6
Default Re: How does the EV mod affect your mileage?

This is relevant to this thread. I hadn't written it when this thread first appeared, but since this one's been resurrected ....

Quote:
Originally Posted by Navigator View Post
I notice that on my commute, my worst mileage is almost always when first accelerating from a stoplight. Using the pedal alone, I cannot quite keep the car in EV mode without obstructing traffic, even though I almost always have green bars. So, what about using the EV switch to get off the line and then just let the mode switch back to normal at 34 MPH?
It might seem counterintuitive, but that's almost the exact opposite of how the EV switch should best be used. Bottom line: using EV for propulsion, whether via the switch or the pedal, generally will hurt fuel economy. Re-read this thread, read my writeup and the links within it, and do a good search on the other EV threads to fully understand why.
JimboK is online now  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-04-2008, 12:21 PM   #18
Navigator
Junior Member
 
Join Date: Jan 2008
Location: Fullerton, CA
Posts: 22
My Car: 2008 Prius
Model:
Package: #5
Thanks: 0
Thanked 1 Time in 1 Post
Friends: 0
Default Re: How does the EV mod affect your mileage?

Quote:
Originally Posted by JimboK View Post
It might seem counterintuitive, but that's almost the exact opposite of how the EV switch should best be used. Bottom line: using EV for propulsion, whether via the switch or the pedal, generally will hurt fuel economy. Re-read this thread, read my writeup and the links within it, and do a good search on the other EV threads to fully understand why.
This does seem counterintuitive! Even when I use the pedal to accelerate in EV only mode as much as possible, I still wind up with green bars. I think this is because I am not attempting to cruise in EV only mode all the time. There are enough stoplights to allow me to keep the battery charged up to the green bars. In view of this, it is hard to understand why using a bit of EV only mode for a few seconds just to get off the line wouldn't be beneficial.
Navigator is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-04-2008, 12:47 PM   #19
TonyPSchaefer
Your Friendly Moderator
 
TonyPSchaefer's Avatar
 
Join Date: May 2004
Location: Far-North Chicagoland
Posts: 10,506
My Car: 2004 Prius
Model:
Package: #9
Thanks: 39
Thanked 168 Times in 109 Posts
Friends: 23
Default Re: How does the EV mod affect your mileage?

I won't lie and tell you that I always do the right thing or that I never use the EV button "incorrectly."

Oh sure, I have accelerated using the button. Sometimes I see little or no real impacts. Other times, I manage to drop my SoC a couple bars and then have to listen to my ICE rev up and recharge the batteries.

So let me put this into another perspective: Should I drink this soft drink?
- It's got a lot of empty calories so a lot of people would say no.
- I like the taste so I might say yes.
- All those calories might go to my waste so I probably shouldn't.
- But I'm planning on going to the gym tonight so I could burn them off.
and the back-n-forth could go on all night.

In the end, if you have the button, use it to your heart's content. knock yourself out. We should not be telling you what you can and can not do. However, some of us have a few years worth of experience to tell you what happened when we used it in situations that might or might not be just like yours.
__________________
Proud father of Priapus: the '04 Tideland BC9 with an OEM EV button and sense of self-righteousness
Current Mileage

Chicago Prius Group Website
Chicago Hybrid Group on FaceBook
Find me on faceBook

Click the image to open in full size.
TonyPSchaefer is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Old 09-04-2008, 12:58 PM   #20
Navigator
Junior Member
 
Join Date: Jan 2008
Location: Fullerton, CA
Posts: 22
My Car: 2008 Prius
Model:
Package: #5
Thanks: 0
Thanked 1 Time in 1 Post
Friends: 0
Default Re: How does the EV mod affect your mileage?

Quote:
Originally Posted by TonyPSchaefer View Post
However, some of us have a few years worth of experience to tell you what happened when we used it in situations that might or might not be just like yours.
Right, which is why I am asking you guys. Thing is, most of the posts I see regarding the EV button seem to be by people asking if they can cruise all over town in EV only mode. I haven't seen much about the impact of using the button only for, say, an occasional 5-second moderate acceleration.
Navigator is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiFurl this Post!
Reply With Quote
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
Headlights affect on fuel mileage? likesmpg Gen II Prius Fuel Economy 24 08-25-2007 05:04 PM
What all devices in prius will affect gas mileage? poodlemaster Gen II Prius Audio and Electronics 11 01-10-2007 06:41 PM
Did reprogram affect your mileage? Azor Gen II Prius Main Forum 47 03-06-2006 10:12 PM
Ever Wonder how an aero change will affect your mileage? Tempus Gen II Prius Modifications 1 06-21-2004 07:23 PM
Do option packages affect mileage? aarons12 Gen II Prius Fuel Economy 5 06-21-2004 12:03 AM


Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -5. The time now is 01:23 PM.


Powered by vBulletin®
Copyright ©2000 - 2009, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2