View Single Post
Old 07-17-2011, 09:58 AM   #18 (permalink)
jime57
Master EcoModder
 
Join Date: Oct 2008
Location: Mid-Atlantic
Posts: 491

OurInsight - '06 Honda Insight
Thanks: 170
Thanked 69 Times in 44 Posts
Quote:
Originally Posted by 3-Wheeler View Post
Hi Jim,

Yes, I use a conservative amount of P&G during my drive home.

There are about five places where I coast about 1/8 mile or so with the engine keyed-off.Jim.
Jim, in a strictly technical sense, I'm not sure this coasting, and my same approach, is pulse-and-glide. I have the impression that true P&G involves accelerating at a engine efficient load, usually something aroung 70%, up to the glide speed and then cutting the ignition and coasting. When the car coasts down to the bottom of the P&G target range, then another cycle is initiated. The theory, as I understand it, is that the engine is always operating in its sweet spot. Maybe I'm wrong on the definitions

Anyway, I do some FAS sections with the key off, but it is usually on downhills, or where I'm going to have to give up speed anyway. I don't consider that P&G, but I don't make a claim to be an expert. Whatever the name, my technique does significantly improve MPG.
  Reply With Quote