Quote:
Originally Posted by laurie
nice chart, however, i have another version of it that's not quite so technical, and still serves me well.
. . .
therefore, part of my P&G technique consists of slowing down to a more fuel efficient speed when there is nobody behind me, to moving back to 60 when traffic approaches. this way i avoid most threats of being rundown for interfering with someone's god-given right to speed, though of course there are always those who i will never please. in between i can slow down to perhaps 50 and keep my FE intact.
. . .
|
I'd be interested in your chart too. IMHO we don't do a good job of sharing the steady-state characteristics of our respective vehicles.
As for driving style, my understanding is any 'n-m(a)P&G' entails a pattern of acceleration and 'gliding' so the speed looks like a saw-tooth. If you're just backing down to a more fuel efficient speed range that you hold, that wouldn't be a P&G pattern like this:
In this test, there was no other traffic until the intersection when I drove in a more predictable pattern. Here is the same data with each P&G cycle laid upon the other:
I used this chart to determine that this is a "25-43(34)P&G" cycle. I could then perform a set of 34 miles per hour runs and compare the results.
Bob Wilson