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This is a discussion on Oak Ridge National Lab Prius Evaluation within the The File Library forums, part of the Gen II (2004-2009) Toyota Prius Forums category; This is a very thorough and detailed article explaining the function of the hybrid system of the Prius...43 pages, but ...


Oak Ridge National Lab Prius Evaluation

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Old 12-12-2004, 10:37 AM   #1
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Default Oak Ridge National Lab Prius Evaluation

This is a very thorough and detailed article explaining the function of the hybrid system of the Prius...43 pages, but quite impressive.
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Old 12-12-2004, 10:52 AM   #2
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Evan,
Don't know if it me or not but couldn't get the link to work.
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Old 12-12-2004, 11:00 AM   #3
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I wonder what the significance of the "alarming" sounding sentence in section 5.1 is:

"Component-level testing at ORNL revealed that gearbox related friction losses were found to be
significant."

Not looking for a conspiracy theory here. I actually don't understand what they mean ops:
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Old 12-12-2004, 11:00 AM   #4
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Quote:
Don't know if it me or not but couldn't get the link to work.
It's a fairly large PDF file. It takes a couple of minutes to download and open Adobe Reader, even with a DSL connection.
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Old 12-12-2004, 11:08 AM   #5
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The thing is I get a blank screen, the lower left hand corner says done, and the modem icon doesn't show any info being transferred back and forth. Having said that I wonder if it is me as you seem to have had success.
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Old 12-12-2004, 11:21 AM   #6
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The thing is I get a blank screen, the lower left hand corner says done, and the modem icon doesn't show any info being transferred back and forth. Having said that I wonder if it is me as you seem to have had success.
Jon,

I, too, experienced a blank screen for a few minutes and the browser window appeared to be frozen.

Since I was browsing other websites in separate windows, while I was waiting, I was not paying attention to the modem lights or the ZoneAlarm icon for traffic, as I was waiting.

Try waiting for a few minutes.

Here is the URL as shown on my computer:

http://priuschat.com/forums/files/oakridge...elabsreport.pdf
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Old 12-12-2004, 11:24 AM   #7
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Here is an HTML version of the same document, thanks to Google:

http://216.239.57.104/search?q=cache:nFtIE...ota+Prius&hl=en

And another URL for the original PDF version:

http://www.ornl.gov/~webworks/cppr/y2001/r.../rpt/121813.pdf
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Old 12-12-2004, 11:34 AM   #8
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Dunno guys, seems to work fine for me.
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Old 12-12-2004, 11:36 AM   #9
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Quote:
I wonder what the significance of the "alarming" sounding sentence in section 5.1 is:

"Component-level testing at ORNL revealed that gearbox related friction losses were found to be
significant."

Not looking for a conspiracy theory here. I actually don't understand what they mean ops:
I don't know if it's so much 'ominous' as maybe a noteable area for potential future improvement. There are lot of gears and thus a lot of contact and friction which will, obviously, result in losses. If an improved PSD (power split device) could be designed that could 1)Handle the torque and 2)lower frictional losses, you could have a marked improvement in efficiency.
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Old 12-12-2004, 12:09 PM   #10
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i have to downloa any pdf file.. the service pack 2 of xp has caused nothing but problems for me.
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