(Sources: Autoblog Green , Green Car Congress, NY Times Wheels, Green Car Reports)

The internet as well as the automotive world has been abuzz with a lot of discussions since this morning after General Motors CEO Fritz Henderson revealed what the company’s mysterious ‘230’ ad campaign was about.  It turned out to be the official mileage rating for GM’s upcoming 2011 Chevrolet Volt extended-range electric car.

GM must be basking in the new found glory (though it sounds more temporary as the intelligent folks around the web are starting to dig out the details behind this 230mpg claim). GM’s Twitter account was proudly re-tweeting a post that goes like this: 230 mpg city, great. More than 100 mpg combined, even better. Not being stranded after 300+ miles, priceless.   Mind you!  This is just a sample of what’s been such a flood of good PR for GM. after this 230 unveiling.

For many smart folks, a number like that seems outlandish, absurd. How can the US Environmental Protection Agency possibly measure fuel consumption that low? The answer, it turns out, is all in the assumptions.

Our friends at Autoblog says “Without access to the actual method that the EPA is tentatively going to apply to plug-in vehicles (we have requests for clarification out to the EPA), all that GM’s Dave Darovitz would tell us is that the number is “based on city cycles and we’re not really talking in detail yet.” Instead, the press release says that: Under the new methodology being developed, EPA weights plug-in electric vehicles as traveling more city miles than highway miles on only electricity. The EPA methodology uses kilowatt hours per 100 miles traveled to define the electrical efficiency of plug-ins. Applying EPA’s methodology, GM expects the Volt to consume as little as 25 kilowatt hours per 100 miles in city driving. At the U.S. average cost of electricity (approximately 11 cents per kWh), a typical Volt driver would pay about $2.75 for electricity to travel 100 miles, or less than 3 cents per mile.

Which leads to the big question: What assumptions should the EPA make in its emissions and gas-mileage tests about how the Volt is used (also known as the car’s “duty cycle”)?

For decades, gasoline cars (and ) have been testing using two cycles: city and highway. That gives us the two quoted EPA mileage ratings, and the EPA also calculates a “blended” number for overall usage. The distance driven doesn’t really matter.

But for the Volt, mileage assumptions become much more political.  If the EPA tests a Volt over a cycle of less than 40 miles, it will never burn any gasoline, and it’ll get that “infinite” mileage. The daily distance matters much more for the Volt than for a gas engined car.

The answer appears to be the EPA has adopted a cycle described by GM-Volt.com, among others, that assumes the Volt is driven until the battery is discharged–and then slightly more on gasoline power.

A similar test routine proposed by Mike Duoba at Argonne National Laboratories repeatedly drives the car on four EPA highway test cycles until the battery is discharged, then drives one city cycle–totaling 51 miles. (The EPA city cycle is roughly 11 miles, the highway cycle about 10 miles.)

If the engine runs for 11 miles at 50 mpg, that will use 0.22 gallons of gasoline. But that amount is used over a total travel distance of 51 miles, which works out to 232 mpg. Sounds like 230 mpg to us!

Jim Motavalli wrote on his Wheels column on  New York Times : The problem with claiming 230 miles a gallon was that to get at numbers like that you can’t simply measure its fuel consumption. The plug-in hybrid’s small gas engine is there to provide power for the electric motors, not drive the wheels, and the first 40 miles are on the batteries alone.

G.M. can plug its numbers into the E.P.A. city driving cycle and get stellar results, but, as they say, actual results — and planetary impact — will vary quite a bit. How and where you drive the Volt will matter quite a bit, too. “If you’re heavy footed, you’re not going to get 230 miles per gallon,” said Roland Hwang, transportation program director at the Natural Resources Defense Council.

In a detailed article published by Green Car Congress one can learn how this fuel economy rating is measured.  While the fuel economy (FE) for combustible fueled vehicles (such as gasoline, diesel, compressed natural gas, or an ethanol blend) can easily be expressed in mpg, and fuel economy for an all-electric vehicle can be expressed in miles per gallon of gasoline equivalent (mpge), the arrival of new technologies that can operate in all-electric mode, a conventional hybrid mode, or some combination of the two complicates the situation.

The EPA is revisiting the FE label provisions as they apply to those types of vehicles, and is working with automakers, the SAE, the State of California, the Department of Energy and others to address these issues. The EPA anticipates issuing guidance and/or a rule this year.

According to US Department of Transportation data, nearly eight of 10 Americans commute fewer than 40 miles a day. A Volt driver’s actual gas-free mileage will vary depending on how far he or she travels and other factors, such as how much cargo or how many passengers they carry and how much the air conditioner or other accessories are used. Tony Posawatz, Vehicle Line Director for the Volt, said that the Volt is delivering 40 miles all electric in both city and highway cycles.

However, Posawatz notes that since the Volt results are based on a single charge per day—and that given the recharge time of 6-8 hours on a standard 110V outlet or half that on a 240V charger, the Volt has the potential to deliver better than 230 mpg performance if it can charge multiple times per day.

Click here to read the entire article.

(Source: Washington Post, Jalopnik, Autoblog)

Car can extend its range to more than 300 miles with its flex fuel-powered engine-generator.

Image Courtesy: Autoblog

In case you missed it this morning, General Motors CEO Fritz Henderson made some big news just one month after the “new” GM emerged from bankruptcy protection.

General Motors announced today that its forthcoming electric vehicle, the Chevrolet Volt, will achieve city fuel economy of 230 miles per gallon, under testing that used draft federal fuel economy methodology standards for plug-in cars.

The Volt will become the first mass-produced vehicle to obtain a triple-digit MPG rating, the company said.

“The Volt is becoming very real, very fast,” chief executive Fritz Henderson said. “The price of oil is going to go up.”

According to Frank Weber, vehicle chief engineer for the Volt, the number is based on combined electric only driving and charge sustaining mode with the engine running. He declined to get specific about the proportions, but did say that the urban cycle would be predominantly EV only. The EPA has been studying real world vehicle usage and is developing the formulas to try and provide a representative number of what most customers could expect to achieve. In addition to the composite number, the new EPA stickers will likely also get numbers for mileage in charge sustaining mode and electric efficiency in EV mode.

Initial prices for the car may be as much as $40,000, analysts said.

But company officials said the car’s price is expected to come down over time. They note, moreover, that gas prices will rise again, making fuel-efficient cars more valuable.

The Volt, which is scheduled to start production late next year, is expected to travel up to 40 miles on electricity from a single battery charge. The company says the car can extend its range to more han 300 miles with its flex fuel-powered engine-generator.

Assuming the average cost of electricity is approximately 11 cents per kilowatt-hour in the United States, a typical Volt driver would pay about $2.75 for electricity to travel 100 miles, or less than 3 cents per mile.

This story’s still developing, but if our sources are correct, it would blow the Toyota Prius out of the water. Heck, it’d blow every other vehicle currently on the market out of the water with the exception of the Tesla roadster — and that’s no four-door mid-size sedan. So for GM this represents a huge marketing coup — the ability to claim the most fuel efficient vehicle in the world and a big blow to detractors who claim the big, sweaty ‘merican manufacturer can’t build quality products.

Click here to read the entire article.

(Source: ABC News & Autobloggreen)

I had an opportunity to take a ride today in a new electric car that has perhaps one of the best shots at being the U.S. answer to Japan’s popular Toyota Prius.

Image Courtesy: Autobloggreen

Designed by Santa Monica, California-based Coda Automotive, the four-door sedan isn’t powered by gas. The electric battery can plug into any standard AC outlet.

Coda says a 40-mile commute takes about 2 hours to charge.

Right now, the car and it’s battery are manufactured in China. But the company has applied for tens of millions of dollars worth of stimulus funding through the Department of Energy to build an electric battery plant in a factory in Enfield, Connecticut to fuel it’s vehicles.

“The U.S. has zero,  absolutely no mass battery manufacturing in the United States.  So we’re going to China where they can mass produce the batteries to get these cars to market in the U.S. fast until we can get these produced here” said Kevin Czinger, president and CEO of Coda Automotive.

Coda plans to partner with aerospace battery designer Connecticut-based Yardney Technical Products to create and mass produce the first U.S. electric car battery.

The company says the plant could employ 600 people at first, and then possibly grow. Beginning next June, Coda plans to have the capacity to build 2,700 cars and 20,000 a year in 2011. By comparison, Toyota sold about 159,000second-generation Toyota Prius hybrid cars last year in the U.S.  The price tag? $45,000 — but buyers could receive a federal tax credit worth $7,500 and other state incentives that Coda says could drive the price down to $32,500.

Image Courtesy: Autobloggreen

Click here to see more hi-res pictures of the Coda sedan.

(Source: Good Magazine)

Amidst the clutter of alternative vehicles that are already in the market and the ones just arriving in the market, how would one decide on the “right” vehicle?  Our savvy folks at Good magazine have published an excellent resource that makes this decision-making process less-complicated and easy to navigate.

Whatever happened to hydrogen?

The idea is great: Take the most abundant element in the universe, turn it silently into electricity, and the only byproduct is a wisp of steam. To its fans, the hydrogen fuel cell is a transportation miracle that will cork our carbon output and curb our addiction to foreign oil. To its critics, it’s vaporware.

(Source: New York Times)

(Source: Jalopnik)

The General Dynamics Reconnaissance Surveillance and Targeting Vehicle is one cool piece of kit. It’s powered by four electric in-wheel motors and can export thirty kilowatts directly to the grid. It’s also got neat-o gauges.

This piece of military could-be is part of a larger push from the US Army to reduce their fuel consumption and use smarter technologies to make future land vehicles better in the field and more useful tools for soldiers. The RST-V is a technology demonstrator built entirely by General Dynamics to show what’s possible on a smaller-sized vehicle built around a series hybrid drive system.  (For those interested in reading about the Pentagon’s forays into alternative fuels take a look at this article : Pentagon Prioritizes Pursuit Of Alternative Fuel Sources).

It uses a small diesel-engine powering a generator to charge on-board batteries or power the in-wheel electric motors. Instead of mounting the wheels to studs on the motor as is normally done on hub-motor concepts, this concept works a bit differently. First the wheel is assembled on a bearing riding on an stub axle, then on goes the 90 kW peak, 50 kW continuous pancake motor mount installed on the splined hub shaft, then on top of that a pancake gear reduction unit which interfaces with an eccentrically mounted geared track one the rim of the wheel. Very, very clever. Each wheel gets an independent motor controller so even if three motors get shot out, forward motion is still possible.  Aside from being able to operate in all-silent mode, it can also export over 20 kW of power to the grid.

Click here to read the entire article.

(Source: AutoBlogGreen, CNNMoney)

Dodge Circuit, a two-seat roadster, could be Chrysler’s first step into electric cars, provided the company survives.

A battery-powered 268-horsepower two-seat sports car is in line to become Chrysler LLC’s first electric car, provided the carmaker lives to see another day.   

To survive, help is needed from Italy’s Fiat but, as negotiations with the Italian automaker bog down and the two week deadline to hammer out a partnership approaches, the company’s future – as well as its aspirations for an electric hot rod – are increasingly in doubt.

Chrysler’s first electric car, set to be introduced late next year around the same time as General Motors’ Chevrolet Volt, will be a sports car with a zero-to-60 time of under five seconds and a top speed of 120 miles hour.

“To be able to meet a 2010 timeline, you have to be pretty far along in development, and right now we are,” said Lou Rhodes, head of Chrysler’s electric car program, in a recent CNNMoney.com interview.

The Circuit is similar to the Tesla Roadster, a $109,000 sports car produced by a small California company. Pricing for the Circuit has not been announced but will likely undercut the Tesla.

(Source: New York Times)

China wants to raise its annual production capacity to 500,000 hybrid or all-electric cars and buses by the end of 2011, from 2,100 last year, government officials and Chinese auto executives said. By comparison, CSM Worldwide, a consulting firm that does forecasts for automakers, predicts that Japan and South Korea together will be producing 1.1 million hybrid or all-electric light vehicles by then and North America will be making 267,000.

TIANJIN, China — Chinese leaders have adopted a plan aimed at turning the country into one of the leading producers of hybrid and all-electric vehicles within three years, and making it the world leader in electric cars and buses after that.

Premier Wen Jiabao highlighted the importance of electric cars two years ago with his unlikely choice to become minister of science and technology: Wan Gang, a Shanghai-born former Audi auto engineer in Germany who later became the chief scientist for the Chinese government’s research panel on electric vehicles.

Beyond manufacturing, taxi fleets and local government agencies in 13 Chinese cities are being offered subsidies of up to $8,800 for each hybrid or all-electric vehicle they purchase. The state electricity grid has been ordered to set up electric car charging stations in Beijing, Shanghai and Tianjin.

(Source:  Tree Hugger) 

(Source: Gizmodo.com)