Comments on: Under What Conditions is the Chevy Volt’s Quoted 40 Mile Electric Range Modelled? http://gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/ Real-time news, information, and discussion about the Chevrolet Volt. Mon, 22 Mar 2010 03:23:04 +0000 http://wordpress.org/?v=2.9.1 hourly 1 By: БAKИHEЦ http://gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-138648 БAKИHEЦ Thu, 20 Aug 2009 08:08:51 +0000 http://www.gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-138648 Я бы кое-что добавил, но по сути сказано все. Я бы кое-что добавил, но по сути сказано все.

]]> By: ricardoRI http://gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-109567 ricardoRI Mon, 27 Apr 2009 16:50:25 +0000 http://www.gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-109567 My 1970s diesel VW Rabbit often got 50+ mpg, and always over 40 mpg even with the air conditioning on. Why all the fuss about Volt and 40mpg? My 1970s diesel VW Rabbit often got 50+ mpg, and always over 40 mpg even with the air conditioning on. Why all the fuss about Volt and 40mpg?

]]> By: stas peterson http://gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-102035 stas peterson Mon, 23 Mar 2009 18:23:37 +0000 http://www.gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-102035 There are significant difference from a Prius and its highway mileages. The engine is a 1.4 liter versus a 1.8 liter, 22% smaller. It is at a relatively constant rpm. I expect that the engine is tuned tuned for maximum efficiency at that rpm. That alone could be responsible for a 20% further improvement in mileage. Y'all don't have a clue as to what the fuel economy of an optimized 1.4 constant rpm engine is at that rpm. Buit I remember all those Mobil economy runs where all the tricks to increase mileage were employed by the drivers to produce impossible mileage figures. NONE of them could duplicate the efficiency provided autiomatically ,by a constant RPM operation at an optimized point in the operating band. HCCI will show up there too first I would wager in Gen II or III. Add another 20-30% efficiency too. There are significant difference from a Prius and its highway mileages. The engine is a 1.4 liter versus a 1.8 liter, 22% smaller. It is at a relatively constant rpm. I expect that the engine is tuned tuned for maximum efficiency at that rpm. That alone could be responsible for a 20% further improvement in mileage.

Y’all don’t have a clue as to what the fuel economy of an optimized 1.4 constant rpm engine is at that rpm. Buit I remember all those Mobil economy runs where all the tricks to increase mileage were employed by the drivers to produce impossible mileage figures.

NONE of them could duplicate the efficiency provided autiomatically ,by a constant RPM operation at an optimized point in the operating band. HCCI will show up there too first I would wager in Gen II or III. Add another 20-30% efficiency too.

]]> By: Ed M http://gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-88333 Ed M Wed, 31 Dec 2008 01:11:43 +0000 http://www.gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-88333 GM: The 40 mile range is modeled on the EPA city cycle (federal test procedure) - and the 40 miles is GMs target for battery END OF LIFE. The EPA city cycle includes a range of starts, stops and accelerations but with no A/C. Since 40 miles is end of battery life, we could assume that when the battery is new it will be greater than 40 miles. In future there should be upgrades to the battery that will deliver 40 miles with the A/C on. The first generation batteries are likely to be primitive compared to future generations. GM: The 40 mile range is modeled on the EPA city cycle (federal test procedure) – and the 40 miles is GMs target for battery END OF LIFE. The EPA city cycle includes a range of starts, stops and accelerations but with no A/C.
Since 40 miles is end of battery life, we could assume that when the battery is new it will be greater than 40 miles. In future there should be upgrades to the battery that will deliver 40 miles with the A/C on. The first generation batteries are likely to be primitive compared to future generations.

]]> By: wow http://gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-11999 wow Thu, 25 Oct 2007 03:57:20 +0000 http://www.gm-volt.com/2007/10/22/under-what-conditions-is-the-chevy-volts-quoted-40-mile-electric-range-modelled/#comment-11999 Rashiid, Don't be surprised if the cheapest high gas mileage car is more economical than the newest high-tech hybrid at first. The cost of electric drive will come down as mass-production ramps up and competition sets in from multiple suppliers. Don't forget that you spend $k's on gas per year if you're driving 15,000miles/year. And gas prices are just going to go up. Rashiid,
Don’t be surprised if the cheapest high gas mileage car is more economical than the newest high-tech hybrid at first. The cost of electric drive will come down as mass-production ramps up and competition sets in from multiple suppliers. Don’t forget that you spend $k’s on gas per year if you’re driving 15,000miles/year. And gas prices are just going to go up.

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