F150 Hybrid 300% more efficient than Prius?
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Hybrids of the Future
As hybrid technology continues to evolve, variations on the gasoline-electric hybrid as we know it today are beginning to emerge. The National Vehicle and Fuel Emissions Laboratory at the EPA is currently developing the world's first full hydraulic hybrid urban delivery vehicle in partnership with UPS, Eaton and others. Hydraulic hybrids operate in essentially the same manner as the gasoline-electric hybrids currently on the market, but they use a hydraulic motor in place of the electric motor. "Instead of transforming electricity into mechanical energy, which makes the vehicle move, we use a hydraulic accumulator to store nitrogen gas and a hydrogen motor to highly compress the gas, which then creates energy used to power the vehicle," explained Jeff Alson, senior engineer at the EPA's National Vehicle and Fuel Emissions Laboratory.
Hydraulic hybrids are an intriguing direction for the auto industry because they are far less expensive than the current hybrid technology. The EPA's hydraulic hybrid is paired with a diesel engine, but the EPA's Alson says that the hydraulic hybrid technology could be used with virtually any engine configuration. Instead of using a conventional transmission and transfer case, the EPA's hybrid uses a hydraulic drivetrain, which operates "essentially like a continuously variable transmission," he said. By eliminating these two components, some of the cost of the hybrid technology is negated.
Like other hybrids, the hydraulic hybrid will have lower emissions and lower brake maintenance costs. In addition, the EPA projects a 30- to 40-percent improvement in combined fuel economy with the greatest improvement being in city driving and, because it uses a diesel engine instead of gasoline, much better acceleration. While vehicles that are used primarily around town in many short stops, such as delivery vehicles, will experience the greatest benefits from this technology, it is possible that hydraulic hybrid technology could be applied to passenger vehicles one day.
This was written at the end of last year. Not quite 300% better, but still good improvments.
As hybrid technology continues to evolve, variations on the gasoline-electric hybrid as we know it today are beginning to emerge. The National Vehicle and Fuel Emissions Laboratory at the EPA is currently developing the world's first full hydraulic hybrid urban delivery vehicle in partnership with UPS, Eaton and others. Hydraulic hybrids operate in essentially the same manner as the gasoline-electric hybrids currently on the market, but they use a hydraulic motor in place of the electric motor. "Instead of transforming electricity into mechanical energy, which makes the vehicle move, we use a hydraulic accumulator to store nitrogen gas and a hydrogen motor to highly compress the gas, which then creates energy used to power the vehicle," explained Jeff Alson, senior engineer at the EPA's National Vehicle and Fuel Emissions Laboratory.
Hydraulic hybrids are an intriguing direction for the auto industry because they are far less expensive than the current hybrid technology. The EPA's hydraulic hybrid is paired with a diesel engine, but the EPA's Alson says that the hydraulic hybrid technology could be used with virtually any engine configuration. Instead of using a conventional transmission and transfer case, the EPA's hybrid uses a hydraulic drivetrain, which operates "essentially like a continuously variable transmission," he said. By eliminating these two components, some of the cost of the hybrid technology is negated.
Like other hybrids, the hydraulic hybrid will have lower emissions and lower brake maintenance costs. In addition, the EPA projects a 30- to 40-percent improvement in combined fuel economy with the greatest improvement being in city driving and, because it uses a diesel engine instead of gasoline, much better acceleration. While vehicles that are used primarily around town in many short stops, such as delivery vehicles, will experience the greatest benefits from this technology, it is possible that hydraulic hybrid technology could be applied to passenger vehicles one day.
This was written at the end of last year. Not quite 300% better, but still good improvments.
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