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Old November 8th, 2013, 18:24   #1
Terrific-In-Tahoma
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Default Concept Car: VW unveils Diesel Electric Hybrid Twin-Up!

According to Automotive News Europe VW is going to unveil a Diesel-Electric at the 2013 Tokyo Auto Show.

The name of the vehicle is the VW Twin-UP!, and is reported to have a 214 MPG design rating using the US Driving Cycle.

more.....
http://www.autoblog.com/2013/11/08/v...twin-up-tokyo/


Maybe we can shoehorn a 2 cylinder TDI into a SUV like the '95-99 RAV4

-R
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Old November 11th, 2013, 03:19   #2
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This could be very awesome! Couldn't see if it'll be a conventional hybrid like a Prius or Jetta hybrid, or an electric car with a diesel generator.
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Old November 11th, 2013, 06:04   #3
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We'll get the V-10 version with an 01M behind it.
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Old November 11th, 2013, 16:50   #4
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Nope - we won't get any version at all.... too RISKY to try to sell a really good design in the USA.
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Old November 11th, 2013, 18:28   #5
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I agree, There is no way in the near future this will sell in the US. Too many other interests here that would not allow this to happen unfortunately. Nice concept though...
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Old November 11th, 2013, 19:01   #6
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Diesel-Electric, a MINI-LOCOMOTIVE, how serendipitous!!!!!!

Might as well use a small centrifugal gas turbine as the generator, and save a few bucks on moving parts.
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Old November 12th, 2013, 13:05   #7
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I wonder what % of biodiesel it will be able to handle....
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Old November 12th, 2013, 13:30   #8
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Quote:
Originally Posted by TDI2000Zim View Post
Diesel-Electric, a MINI-LOCOMOTIVE, how serendipitous!!!!!!

Might as well use a small centrifugal gas turbine as the generator, and save a few bucks on moving parts.
What kind of thermal efficiency can you get out of a little turboshaft engine, especially if it is run at one spot on the performance map? I know it won't be that great, but for a EV range extender the weight savings and only occasional use it might fit the bill.

I know it can be improved with heat recouperation, interstage cooling, rankine heat recovery, etc, but all those add complexity and weight and cost.

I looked at APU's for guidance, but those are generally way bigger than what a range extender would be. And I know the smaller the machine, the bigger the flow losses are.
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Old November 12th, 2013, 14:29   #9
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Ski in NC, Jaguar recently did a concept supercar just that way, electric propulsion and twin turbines powering generators as range extenders. "gas" turbines is a bit of a misnomer, as turbines can run on kerosene or diesel or any number of petroleum distillates.
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Old November 12th, 2013, 15:22   #10
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The co-founder of Tesla was in Montana awhile back talking to the electric power coops that supply electricity to much of rural Montana. He said that they're working on a "more practical" electric car that will travel 200 miles at highway speeds. That would mean that from where I live I couldn't drive to the two nearest cities of any size and return l without a recharge. Whoopee.

He also complained that environmental restrictions inhibited the mining and refining of lithium in this country, and kept us from making our own electric/hybrid batteries. Interesting attitude from a supposed environmentalist who likely hates oil wells and coal mines.

That being said a small diesel hybrid would be far more satisfactory and fuel efficient than a small gas hybrid IMHO.
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Old November 12th, 2013, 16:30   #11
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I thought the current Teslas could already do 200+ miles on a charge.
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Old November 12th, 2013, 18:57   #12
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I thought the current Teslas could already do 200+ miles on a charge.
They can. The key word is "affordable".
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Old November 13th, 2013, 07:43   #13
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Quote:
Originally Posted by johnboy00 View Post
I thought the current Teslas could already do 200+ miles on a charge.
And thats with "efficient driving" - I don't think it is a real 200 miles until it can be guaranteed - traffic, 100 degrees, a/c on etc.
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Old November 18th, 2013, 09:36   #14
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I like the overall concept but since VWAG won't consider the current versions of the Up for sale in North America, there is no way that we will ever see the hybrid version.
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Old December 4th, 2013, 22:27   #15
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Quote:
Originally Posted by cevans View Post
And thats with "efficient driving" - I don't think it is a real 200 miles until it can be guaranteed - traffic, 100 degrees, a/c on etc.
Over 300 miles for the biggest battery. Well over 200 in heat, cold, up long grades.
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