A Hybrid Owner’s winter survival guide - Hyundai Forums : Hyundai Forum
 1Likes
  • 1 Post By fbov
 
LinkBack Thread Tools
post #1 of 10 (permalink) Old 01-05-2017, 02:04 PM Thread Starter
Junior Member
 
Join Date: Mar 2016
Posts: 10
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Transponder is an unknown quantity at this point
(Thread Starter)
A Hybrid Owner’s winter survival guide

I thought I would post this link as it has some very useful information. I know the Sonata Hybrid has louvers, but it says "Louvers in the grill shut at higher speeds to improve aerodynamics". Many other hybrid car owners insert pipe insulation foam in their front grills to block partial air flow so the engine warms up quicker and the hybrid system operates better.

A Hybrid Owner?s winter survival guide | CleanMPG

Like many of you in the Northern climate this time of year, you were shocked to see your hybrid millage drop. Basically because optimal engine temperature for the hybrid system to work effectively either takes a while to reach or if it's really cold, never does reach.

One thing I noticed is the demand for cabin heat and the temperature you set climate control & fan speed to has a significant impact on if the engine kicks out during times when you could otherwise be on battery. So I set my heat to 68 degrees with two bars for the fan speed. That seems to help.

But has anyone tried putting foam inserts in their Sonata Hybrid front grill? It's suppose to help on other hybrids like the Prius. Also I wish they had a block heater available for the American engines but my understanding is it's only available on Canadian models. Anyone tried those magnetic mount block heaters?
Transponder is offline  
Sponsored Links
Advertisement
 
post #2 of 10 (permalink) Old 01-06-2017, 01:15 AM
Senior Member
 
Join Date: Sep 2014
Location: Houston, TX
2014 Sonata Hybrid
Posts: 761
Mentioned: 1 Post(s)
Quoted: 218 Post(s)
mogelijk is an unknown quantity at this point
From what I recall seeing, the air flap system works well in the Sonata, it does a good job of stopping air flow into the engine compartment. Because of this, adding extra insulation in front of the air flaps isn't very helpful.
mogelijk is offline  
post #3 of 10 (permalink) Old 01-06-2017, 09:09 AM
Senior Member
 
Fishnrib's Avatar
 
Join Date: Feb 2011
Location: Eads, TN
2011 Sonata Hybrid Premium 2015 Sienna XLE, 1997 Club Car EV
Posts: 2,473
Mentioned: 0 Post(s)
Quoted: 192 Post(s)
Fishnrib is an unknown quantity at this point
Try putting a heater in your trunk or use the seat heater for better mpg in the winter.

Cold weather fuel mileage problem solved.

Tom

2015 Sienna XLE


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Wayne Gerdes and Tom
Fishnrib is offline  
 
post #4 of 10 (permalink) Old 01-09-2017, 07:48 AM Thread Starter
Junior Member
 
Join Date: Mar 2016
Posts: 10
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Transponder is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by mogelijk View Post
From what I recall seeing, the air flap system works well in the Sonata, it does a good job of stopping air flow into the engine compartment. Because of this, adding extra insulation in front of the air flaps isn't very helpful.
The air flaps are only located at the bottom section of the front grill. The main upper grill exposes the radiator and engine compartment to the outside elements. The whole idea is to reduce cold airflow to the engine compartment and radiator.
Transponder is offline  
post #5 of 10 (permalink) Old 01-09-2017, 02:54 PM
Senior Member
 
Join Date: Sep 2014
Location: Houston, TX
2014 Sonata Hybrid
Posts: 761
Mentioned: 1 Post(s)
Quoted: 218 Post(s)
mogelijk is an unknown quantity at this point
Quote:
Originally Posted by Transponder View Post
The air flaps are only located at the bottom section of the front grill. The main upper grill exposes the radiator and engine compartment to the outside elements. The whole idea is to reduce cold airflow to the engine compartment and radiator.
On the YF Hybrid (2011-2015 MY), there are active flaps in front of the radiator -- or that is what I recall from when I looked on mine. I don't know about the LF Hybrid.
mogelijk is offline  
post #6 of 10 (permalink) Old 01-10-2017, 10:09 AM Thread Starter
Junior Member
 
Join Date: Mar 2016
Posts: 10
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Transponder is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by mogelijk View Post
On the YF Hybrid (2011-2015 MY), there are active flaps in front of the radiator -- or that is what I recall from when I looked on mine. I don't know about the LF Hybrid.
Yes they are located in the upper grill. I was misinformed until I looked myself.
So I was told they just close at higher speeds and are not temperature dependent. So bad if that's the case.
Transponder is offline  
post #7 of 10 (permalink) Old 01-10-2017, 10:11 AM
Senior Member
 
Join Date: Sep 2014
Location: Houston, TX
2014 Sonata Hybrid
Posts: 761
Mentioned: 1 Post(s)
Quoted: 218 Post(s)
mogelijk is an unknown quantity at this point
Quote:
Originally Posted by Transponder View Post
Yes they are located in the upper grill. I was misinformed until I looked myself.
So I was told they just close at higher speeds and are not temperature dependent. So bad if that's the case.
From what I've seen, they are both speed and temperature dependent (at least in the YF, though I'd be surprised if it changed in the LF). When I checked mine out, I had my car idling and they opened and closed a couple of times while I was examining them. I believe they always close above a certain speed for aerodynamics, though I believe they may reopen if the engine gets too warm.
mogelijk is offline  
post #8 of 10 (permalink) Old 01-13-2017, 09:56 AM Thread Starter
Junior Member
 
Join Date: Mar 2016
Posts: 10
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Transponder is an unknown quantity at this point
(Thread Starter)
Quote:
Originally Posted by mogelijk View Post
From what I've seen, they are both speed and temperature dependent (at least in the YF, though I'd be surprised if it changed in the LF). When I checked mine out, I had my car idling and they opened and closed a couple of times while I was examining them. I believe they always close above a certain speed for aerodynamics, though I believe they may reopen if the engine gets too warm.
Thank you, It appears they are temperature dependent. There is a lot of wrong information on the internet!

So I installed a piece of foam on the lower grill. It a little too early to conclude anything but the engine temperature monitor appears to stay in the middle of the bar graph display longer even with the heater on @ 70°F, lo fan speed. The temp out side was only 31°F so I'll keep my eye out on the gauges.

On another note, the temperature outside got up to the lo 50°F today. I filled up and went around town. My millage was back up into the lower 40's. (42-43 MPG).
Transponder is offline  
post #9 of 10 (permalink) Old 02-15-2017, 01:53 PM Thread Starter
Junior Member
 
Join Date: Mar 2016
Posts: 10
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Transponder is an unknown quantity at this point
(Thread Starter)
Update: Blocking the lower grill opening with foam did not have a noticeable difference on millage in driving below 32°F. The only thing that obviously does have a huge impact, is turning your cabin heat off.
Transponder is offline  
post #10 of 10 (permalink) Old 02-16-2017, 05:25 PM
Member
 
Join Date: Sep 2016
Posts: 37
Mentioned: 1 Post(s)
Quoted: 12 Post(s)
fbov is an unknown quantity at this point
Quote:
Originally Posted by Transponder View Post
Update: Blocking the lower grill opening with foam did not have a noticeable difference on millage in driving below 32°F. ....
Nor would one expect it to...

Grill blocks are intended to reduce aerodynamic drag. They are not very effective unless applied to all grill openings. Blocking the lower grill alone could, in fact, increase drag depending on how Hyundai manages air flow behind the grill.

Note that Hyundai claims a Cd of 0.24, which is well into the range of diminishing returns. Not much to fix here, if Hyundai's aero data is to be believed. If grill blocks reduce drag, the benefit will be greater as vehicle speed increases. Thus the benefit will depend how fast you drive.

Warm-up issues have a similar dependency, but this time on trip length; short trips will use a lot of fuel if the ICE never reaches operating temperature (or you set the heat to 84F, as my wife prefers).

For those concerned about grill blocks causing engine overheating, as long as you're not climbing long grades at high ambient temperatures, there's no problem. If you're involved enough with your car to make grill blocks, you have the required attention to the Temp gauge.

Have fun,
Frank
JKK likes this.
fbov is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Hyundai Forums : Hyundai Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome