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<  What the heck?  ~  Marbs - I have a physics question.

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PostPosted: Fri Jul 02, 2010 8:28 pm
User avatarButtered Toast with Jam and a Glass of OJ and a Coffee, an Espresso, and a Bagel with HummusJoined: Fri Feb 20, 2009 11:57 amPosts: 556Location: Gainesville, FL
My wife and I just got a Prius. These hybrid cars are a little more complicated than regular engines, so she's been reading a LOT of forums and reviews about the different sort of maintenance and things we need to do.

There is also a lot of talk about how to adjust your driving to get the best mileage. The line from Toyota is that everyone should just drive as they normally would, and the car's computer brain will figure out how to maximize fuel efficiency. But a lot of people seem to recommend a technique called "pulse and glide" previously known as "burn and coast" in regular gas engines.

Basically the idea is that you give it gas pretty hard when you start, and then take your foot all the way off the accelerator, and coast as far as you can before you slow down so much that you need to give it more gas. This sounds fishy to me when applied to a regular car, but because of the way a hybrid works, it sounds like it might work better, though I'm not sure if it would really be that good for the battery, or if it would be worth the hassle of constantly dropping speed so drastically.

So Jon, I was wondering if your physics background gives you any sort of further perspective on the pros and cons of this technique. I'm not sure how familiar you are with the subject, but I'm sure a little cursory research would illuminate the nuances.

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PostPosted: Mon Jul 05, 2010 8:27 am
User avatarButtered Toast with Jam and a Glass of OJ and a Coffee, an Espresso, and a Bagel with HummusJoined: Fri Feb 20, 2009 11:57 amPosts: 556Location: Gainesville, FL
well, Jon, I talked to you briefly last night, but I'm still wondering if you might have a little time to devote some closer analysis to this situation.

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PostPosted: Fri Jul 09, 2010 9:40 am
Buttered Toast with Jam and a Glass of OJJoined: Mon Feb 16, 2009 3:47 pmPosts: 232Location: Gainesville, FL
I will get on finding some answers this weekend.


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PostPosted: Tue Jul 20, 2010 8:25 am
Buttered ToastJoined: Thu Aug 27, 2009 6:46 amPosts: 56 ... -beat-punk

This is a icebox article I found a few years ago. I took a corner at 60 km/h once with my wife in the car just to see what would happen. it was fine (not a particularly short or sharp corner) but man was she mad.

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