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Hybrid Vehicles Chevrolet Volt Will the Chevy Volt Succeed?
544 messages, Last post on Oct 28, 2009 at 1:11 PM
You are in the Chevrolet Volt Forum. Your Host is pf_flyer
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Replying to: coldcranker (Sep 27, 2008 6:06 am) As for these EV, add the cost of a 2nd car. That's why they don't fly with the general public.
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Replying to: eaton53 (Sep 28, 2008 10:13 am) You can bet an 80% efficient transmission on the Volt (generator-to-motor path) will not get as good gas mileage as a current Corolla with an automatic transmission (31 MPG combined city/hiway) unless the battery is used in burst mode to fill in transient torque demands on the engine. The only details left are what logic thresholds GM will choose and how high they can get the MPG to. Many of us were predicting that the Volt's engine would not recharge the batteries to full after battery depletion because it is a ridiculously low 50% efficient to do so. When GM announced it recently some of us were not surprised. |
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Replying to: coldcranker (Sep 28, 2008 3:08 pm) And they've already said 50mpg, so the battery must be assisting during peak loads and recieving a small charge from the engine and braking to maintain a minimum charge state. I also expect the Volt's engine to run in far more efficient rpm ranges than a Corolla or any other conventional car including the Prius. |
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Replying to: coldcranker (Sep 28, 2008 3:08 pm) GM has stated many times they expect the Volt to get 50 mpg after the battery has been depleted. I've got to believe their engineers know a few things about transmission efficiency. While 50 mpg may end up being a little optimistic, especially with the new EPA ratings, it's hard to imagine that GM could be as far off as you are suggesting. Again, it's speculation on both our parts but if there was a way to bet on whether this car will get over 30 mpg with the ICE I'd definitely take that bet.
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Replying to: peralta (Sep 25, 2008 7:29 am) http://www.motortrend.com/features/auto_news/2008/112_0809_2011_vw_golf_twin_dri- - - ve_preview/index.html http://blog.wired.com/cars/2008/10/twin-drive-is-g.html
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Replying to: peralta (Oct 01, 2008 6:33 pm) |
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Must plug in and gas up...and since the engine works daily, you will have to have more maintenance. Huh? More maintenance than what? Doesn't your current car's engine "work daily"?
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Replying to: stephen987 (Oct 02, 2008 3:19 am) I understand there will be a program to run the engine occasionally, so even if you never drive past battery range you'll go through a tank a year. |
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Replying to: tpe (Sep 29, 2008 5:41 am)  1500-1800 rpms all the time with shutoff when there was little or no load. That's essentially what the Prius 1.5L rates on the highway under the old EPA testing cycle. That's also what most drivers get in real life if conditions are perfect and speed is not too high. 50 mpg is very attainable with a combination of ICE and battery for an extended period....the current Prius is driving proof. Essentially what GM has is a vehicle that will be equivalent to the Gen 3 Prius and prolly the new Insight for extended trips with no recharging. However it will also have the flexibility to be a gas-free vehicle for times around home ( or a recharging infrastructure ) where trips are short.
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Replying to: stephen987 (Oct 02, 2008 3:19 am) the vw engine would run after reaching 30 mph while the volt only kicks in after 40 miles driven. Therefore, the VW engine would run daily, while for a lot of people (me) the volt engine would run only a fraction of use days. my current car isn't a Volt.
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