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Right Lane Cruiser
05-21-2009, 08:21 AM
http://www.cleanmpg.com/photos/data/2/AmericanFlag.jpg "Interestingly, we may never get to 100 percent hybridization, because by then the massive switch to E.V.s may be ready to happen and feasible from a cost standpoint." (http://www.reuters.com/article/bigMoney/idUS165173704020090520)

http://www.cleanmpg.com/photos/data/501/2009_Mitsubishi_iMIEV.jpgMatthew DeBord - Reuters (http://www.reuters.com) - May 20, 2009

Contrary to Jim's view, I think we should electrify everything before we run out of oil. --Ed.

As promised, Jim Motavalli of the New York Times' Wheels blog and I engaged in spirited discussion today about the future of electric vehicles. Jim has posted the debate at Mother Nature Network, where he regularly blogs about environmental issues. (His full bio is below.)

Tuesday's news about raising national fuel-economy standards provided unexpected context for our discussion. In order for automakers to meet the new standards across their fleets, they may have to accelerate E.V., or electric vehicle, development. Daimler is already thinking this way, by taking a stake in E.V. startup Tesla Motors. However, Jim is more pro-E.V. than I am. I'm not exactly anti-E.V., but I think our timetable for adding more E.V.s to the transportation grid should be more long-term. Anyway, let the discussion begin!

As promised, Jim Motavalli of the New York Times' Wheels blog and I engaged in spirited discussion today about the future of electric vehicles. Jim has posted the debate at Mother Nature Network, where he regularly blogs about environmental issues. (His full bio is below.)

Tuesday's news about raising national fuel-economy standards provided unexpected context for our discussion. In order for automakers to meet the new standards across their fleets, they may have to accelerate E.V., or electric vehicle, development. Daimler is already thinking this way, by taking a stake in E.V. startup Tesla Motors. However, Jim is more pro-E.V. than I am. I'm not exactly anti-E.V., but I think our timetable for adding more E.V.s to the transportation grid should be more long-term. Anyway, let the discussion begin!

Jim Motavalli: I think President Obama’s announcement of tough new fuel economy standards for cars and trucks—a fleet average of 35.5 mpg by 2016—is a turning point for the auto industry. The age of big SUVs is over, and the future belongs to electric vehicles (E.V.s). Although hydrogen cars (with electric drive) may be a long-term solution, battery E.V.s are virtually the only currently available “zero-emission” option. I don’t minimize the challenges—range, cost—but I still see 20 percent (and in a best-case scenario, 30 percent) penetration by plug-in hybrids and pure battery E.V.s by 2020. Eventually, I see full electrification of the auto fleet.

Matthew DeBord: I agree that the new fuel-economy standards, coupled with ongoing creative destruction in Detroit, signal a turning point for the auto industry. However, I don't think we're going to see as much market penetration by plug-in hybrids and E.V.s. Price is a major issue. For E.V.s, it will take more than 12 years for truly affordable pure-battery E.V.s to make up one-fifth of the market. We'll get there, but I see the tipping point as sometime in the middle of century. Conveniently, I think this is also when peak oil will become an urgent problem. I'd like to: I think President Obama’s announcement of tough new fuel economy standards for cars and trucks—a fleet average of 35.5 mpg by 2016—is a turning point for the auto industry. The age of big SUVs is over, and the future belongs to electric vehicles (E.V.s). Although hydrogen cars (with electric drive) may be a long-term solution, battery E.V.s are virtually the only currently available “zero-emission” option. I don’t minimize the challenges—range, cost—but I still see 20 percent (and in a best-case scenario, 30 percent) penetration by plug-in hybrids and pure battery E.V.s by 2020. Eventually, I see full electrification of the auto fleet.

Matthew DeBord: I agree that the new fuel-economy standards, coupled with ongoing creative destruction in Detroit, signal a turning point for the auto industry. However, I don't think we're going to see as much market penetration by plug-in hybrids and E.V.s. Price is a major issue. For E.V.s, it will take more than 12 years for truly affordable pure-battery E.V.s to make up one-fifth of the market. We'll get there, but I see the tipping point as sometime in the middle of century. Conveniently, I think this is also when peak oil will become an urgent problem. I'd like to... http://www.reuters.com/article/bigMoney/idUS165173704020090520

voodoo22
05-21-2009, 08:54 AM
Bring on the EV's!

No oil changes, no gas station visits, no fumes or loud engine. I'm sold on those points alone.

Indigo
05-21-2009, 12:44 PM
This is a tangential topic, but how will EVs factor into Obama's revised CAFE standard? They consume energy but they don't consume liquid fuel. Will it be based on the equivalent energy that gasoline releases when burned? Inquiring minds wanna know.

R.I.D.E.
05-24-2009, 03:31 PM
There is a third and not widely discussed option. The hydraulic hybrid powertrain offers significantly better regerative capabilities over electric regeneration. Wheel to wheel hydraulic hybrid powertrains are approaching 80% efficiency, more than twice the energy recovery of electric systems.

Many advocates of different vehicle systems seem to be stuck in the belief that a single configuration will become the vehicle of the future. We mention Tesla as a practical solution, but the longevity of current Lithium battery technology is a major obstacle, as well as the cost of the batteries themselves.

Configuring an accumulator directly connected to 4 wheel independent Infinitely Variable Drive pump motors allows for capacitive storage and discharge of hundreds of horsepower seconds of energy to and from the wheels with almost unlimited life expectancy of the components.

The primary fuel consuming power source, regardless of it's composition or configuration only has to replenish the depletion of the accumulator's energy storage, which eliminates the peaks of application and recovery of energy due to dramatic changes of the inertial state of the vehicle in normal driving situations.

regards
gary

R.I.D.E.
05-24-2009, 03:35 PM
Instead of two separate vehicles for city and highway operation, consider a single vehicle with separate interchangeable power units for short distance (pure electric) and long distance (IC, or other combustion types) road trips.

regards
gary



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