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Science/Tech
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Title: Braking recharge will give GM Chev Volt 230 MPG
Source: RTT News
URL Source: http://www.rttnews.com/ArticleView.aspx?1026312
Published: Aug 12, 2009
Author: Staff
Post Date: 2009-08-12 06:33:09 by Tatarewicz
Keywords: GM Volt, 230 mpg
Views: 331
Comments: 9

GM's Chev Volt extended range electric vehicle is expected to get a fuel economy rating of 230 miles/gallon from the EPA, largely as a result of "charge-while-braking" in city driving. The Volt's range on a single charge will be 40 miles but it will be able to extend the range to more than 300 miles with "flex fuel-power engine-generator." Combined city and highway driving will more likely be 124 mpg.

Toyata Prius is rated at 51 mpg and Ford's Fusion hybrid at 41.

The Chev Volt is to go on sale next year, selling for approximately $40,000.

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#2. To: Tatarewicz (#0)

This is bullshitting the gas mileage numbers. It assumes you start with a fully charged battery and only drive 60 or so miles.

Give us the gas mileage starting with an empty battery.

Rhino369  posted on  2009-08-12   9:05:39 ET  Reply   Untrace   Trace   Private Reply  

Give us the gas mileage starting with an empty battery.

A better method would be to give BTUs/mile in electric mode and gas mode.

1 kiloWatt=3,414Btu
1 gal gasoline=~112,000Btu

Electric motors are typically about eight times more efficient than internal combustion engines in an automotive application.

Esso  posted on  2009-08-12   9:35:52 ET  Reply   Untrace   Trace   Private Reply  

Electric motors are typically about eight times more efficient than internal combustion engines in an automotive application.

But the volt will be using a gas generator which will lose much of that gained efficiency.

I really want to buy a Volt, I'm an electrical engineer and the electric powertrain is sexy. If its around 35K and or down I'll probably get one.

>1 kiloWatt=3,414Btu >1 gal gasoline=~112,000Btu

Kilowatts per mile would be how I'd want it.

Rhino369  posted on  2009-08-12   9:41:16 ET  Reply   Untrace   Trace   Private Reply  

I'm going to wait until China starts selling their pure electrics in this country. Prices are supposed to start at <$15,000. Gas/electric hybrids are an expensive, overly complicated clusterf**k.

GM could've put their EV1 powertrain in any of their vehicles, but NOBODY wants to allow the people to have maintenance- free, cheap to own/operate vehicles. Not the goob, not the oil companies, not the automakers, not the dealers.

Esso  posted on  2009-08-12   10:01:42 ET  Reply   Untrace   Trace   Private Reply  

I'm going to wait until China starts selling their pure electrics in this country. Prices are supposed to start at <$15,000. Gas/electric hybrids are an expensive, overly complicated clusterf**k.

I wouldn't drive a Chinese car, knowing their value on quality control and human lives.

But I agree that most gas electric hybrids are an overly complicated clusterfuck, but the Volt is different.

Instead of having a messy dual electric mechanical powertrain, it has one electric powertrain, and an onboard electric generator. This basically is an updated EV1, with its own gas generator. The motor will last a long time with almost no maintenance, and the generator should be easily maintained. The only problem is battery maintenance.

The volt will be an intermediate between gas and electric vehicles. Making a jump between them isn't practical, but the volt hopefully will be.

Rhino369  posted on  2009-08-12   10:18:09 ET  Reply   Untrace   Trace   Private Reply  

#7. To: Rhino369 (#6)

What I'd really like to have is an electric lawn tractor like the GE ElekTrac from the 70s, but with upgraded tech. I'd build one, but I've got too many other projects going on.

Esso  posted on  2009-08-12 10:28:04 ET  Reply   Untrace   Trace   Private Reply  

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