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CleanMPG Forums
| D-fas |
*VERY dangerous if not done right, possibly illegal*
Draft-Assisted FAS: When approaching a proper point to invoke a FAS, a draft target can be selected to increase the glide distance on the back side of the FAS. You have a speed of 65 mph, a draft target is up ahead doing 57 mph. You invoke FAS and glide into the distance draft, then into the close-in, fall back into the distance, and fall back away into a naked Glide. Pro’s include extending Glide distances significantly thus increasing overall FE (Fuel Economy) if performed properly. Con’s include having to use brakes if you came into the draft target too hot, a close-in draft is dangerous, and the wear issues associated with any FAS (see FAS for details). |
Last Updated: 06-14-2007 @ 02:14 AM
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| Fas |
*Could be dangerous if not done right, possibly illegal*
Forced Autostop: A Honda hybrid will AS (Autostop) in various scenario’s although it is very limiting to a given condition. Too high a speed, too cold, not enough SoC (state of Charge), not enough speed since last AS, Defrost or A/C on except for the AH and HCH-II in specific conditions, etc. will not allow AS … Forcing an AS in any vehicle (other then an HSD equipped hybrid), aka FAS, takes these limits out of the equation. Shift to N, let the Tach stabilize, key back to IG-I (shuts down the ICE and electronics), key back to IG-II to reboot the electronics and coast to a stop or pre-determined lower speed depending on conditions. Recover by starting up ICE via key to IG-III, release to IG-II, and engage transmission with a rev match to continue on your way. Pro’s include a very noticeable increase in FE over any short distance trip and is required in a few areas of the US as well as much of Europe, ie. sitting at a stop sign for > 15 seconds or at a stop for > 5 minutes … Con’s include powerless coast, power brake assist is lost after a few uses, power steering is lost although at speed, you do not need it, is illegal in some locales, and possibly both gear reduction starter from excessive ICE starts and pre-mature wear from re-engagements of the transmission at speed. |
Last Updated: 10-22-2008 @ 09:01 AM
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