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Old 11-01-2005, 03:33 PM
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xcel xcel is offline
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Real Name: Wayne Gerdes
Location: Northern Illinois
Posts: 2,567
Default Re: The physics of pulse and glide

Hi EricGo:

___The only thing I have accomplished with the above post is give myself a headache A Glide should be just that, a powerless coast down but it is not in the Prius II. I included full 213 Wh/mile even in the glide although you won’t use 213 Wh/mile unless you maintain a steady speed and the ICE will be on at that speed of course. There is a lot more current flowing in the Glide below 41 mph that I cannot account for and I have the feeling it is MGSet synch current? In the Accord, a FAS is close to a powerless free coast as possible although again, it is in the coast down only … Add in a D-FAS after every third of fourth pulse and she does allow some incredibly long Glides at way over the limit speeds.

___In the Insight it was a powerless glide in a FAS as well but I never received anything but a traffic side draft which gave her a few more mpg’s. I held onto lean-burn so hard I would not let it go. Lean-burn was that good but was only maximized at much slower speeds. Boy do I wish I had my Insight for a few weeks to see what she would be worth knowing what I do today

___I have to think about this some more because my serial or parallel hybrid calc’s are falling apart with a P&G’ed ICE behind a steady speed EV. I just do not know what the answer is right now although I do know the Prius II’s 1.5 L ICE is way oversized for the envelope I would drive her in if I owned one

___Good Luck

___Wayne R. Gerdes

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