Fuel Economy & Emissions Talk about the mileage database, EPA, hypermiling, gas and driving strategy.

Scangauge: How does it help?

  #1  
Old 02-06-2008, 06:45 AM
Sungod18's Avatar
Part Time Hybrids
Thread Starter
Join Date: Jul 2006
Location: New England
Posts: 259
Question Scangauge: How does it help?

For those of you you own and use the scangauge:

How does the product help with driving and economy? What displays can it show and how does each assist you? Would you say it gives a definite improvement when you are able to use it?

Just some idle questions. I'm wondering if it might be worth the cost, and how exactly it helps. Thanks in advance!
 
  #2  
Old 02-06-2008, 08:03 AM
msantos's Avatar
Eco Accelerometrist
Join Date: Jun 2006
Location: Winnipeg, MB
Posts: 1,191
Default Re: Scangauge: How does it help?

Since you already own an HCH, you've got all the displays and gauges you need to drive efficiently.

However, for owners of cars with similar instrumentation, the ScanGauge can expose many additional details that can be used to further one's fuel economy performance - for many hypermiliers a scangauge is a biblical MUST HAVE. Anyway, on the HCH I set the scangauge to display the following gauge readouts (*=favorite):

cAI- air intake temp *
cWT- engine temp *
IGN-ignition retard or advance reading
LOD-engine load *
LPH- consumption rate *

On the Prius, I use:
cAI- air intake temp *
cWT- engine temp *
RPM=Engine RPM reading *
IGN-ignition retard or advance reading *
LOD-engine load
LPH- consumption rate

There are many other benefits to using a scangauge, such as using it as an OBD-II code retriever, and also as a very good trip computer - just to mention a couple more.


Cheers;

MSantos
 
  #3  
Old 02-10-2008, 03:00 PM
gpsman1's Avatar
Hybrid and Ethanol Expert
Join Date: Mar 2005
Location: All over the Central U.S.
Posts: 3,589
Default Re: Scangauge: How does it help?

Those are some of my fav's also.

Except for load. I find load useless in a Hybrid with a CVT.

With a CVT, the car purposely tries to keep the ICE at near maximum load.
In the Escape, unless I'm not moving... my ICE is always in the 80% to 99% range, no matter my speed or pedal pressure.

If the demand for HP goes down, since the road slopes down for example, then RPM's go down, even if wheel speed goes up, hence the LOAD stays above 80% because that is where engineers have found it is most fuel efficient.

So I'm curious what you get out of watching load... in my car, I think it is pretty useless. -John
 
  #4  
Old 02-11-2008, 05:30 AM
msantos's Avatar
Eco Accelerometrist
Join Date: Jun 2006
Location: Winnipeg, MB
Posts: 1,191
Default Re: Scangauge: How does it help?

Originally Posted by gpsman1 View Post
...
Except for load. I find load useless in a Hybrid with a CVT.

...

So I'm curious what you get out of watching load... in my car, I think it is pretty useless. -John
Perhaps so in FEH, but certainly not so in other hybrid vehicles.

For instance:

While I do not fixate on the LOD for the Prius as I prefer the IGN reading instead, observing the LOD on the HCH-II does allow for fine tuning one's "driving" further because certain operational modes "kick in" at different LOD levels.

For example, the HCH-II engine operates under 3 different profiles, cylinder de-activation, low speed (Atkinsonized profile) and high speed operation. The load varies widely and flexibly from 19% to rougly 65% when operating below 2500 RPM.

Furthermore, the HCH has several regen modes as well. One of which is known as the "hidden regen", and the only way to trigger it ON and keep it there is to observe the LOD range. Doing so, enables one to slowly charge the pack with a minimal impact on FE.

So as you can see, hybrid implementations vary quite a bit don't they?
... really fun stuff.

Cheers;

MSantos
 
  #5  
Old 02-11-2008, 07:42 AM
bwilson4web's Avatar
Engineering first
Join Date: Oct 2005
Location: Huntsville, AL
Posts: 5,613
Default Re: Scangauge: How does it help?

Just curious, what is the definition of "LOD?" Torque? Shaft power?

Bob Wilson
 
  #6  
Old 02-11-2008, 07:57 AM
msantos's Avatar
Eco Accelerometrist
Join Date: Jun 2006
Location: Winnipeg, MB
Posts: 1,191
Default Re: Scangauge: How does it help?

This is the formal definition for LOD (or engine loading):


"... a percentage of the maximum power available currently being generated. In some vehicles it is the maximum available at the present RPM..."

Cheers;

MSantos
 
  #7  
Old 02-11-2008, 08:40 AM
bwilson4web's Avatar
Engineering first
Join Date: Oct 2005
Location: Huntsville, AL
Posts: 5,613
Default Re: Scangauge: How does it help?

Originally Posted by msantos View Post
This is the formal definition for LOD (or engine loading):

"... a percentage of the maximum power available currently being generated. In some vehicles it is the maximum available at the present RPM..."
Thanks!

It sounds an interesting number since some vehicles might not have a 'torque' metric to calculate the power. The ICE rpm is easy but torque can be a challenge. I know it took observing Prius torque before I could really understand 'heretical' or what Toyota calls "energy recirculate" mode.

Bob Wilson
 
Related Topics
Thread
Topic Starter
Forum
Replies
Last Post
turbotaguy
Ford Fusion Hybrid (Lincoln MKZ)
0
05-09-2011 06:09 PM
bbmotor
Ford Escape Hybrid
45
07-28-2010 11:34 AM
miketeri
Toyota Camry Hybrid
1
10-05-2008 10:18 PM
lars-ss
Toyota Camry Hybrid
0
06-08-2006 07:41 AM


Thread Tools
Search this Thread
Quick Reply: Scangauge: How does it help?


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.