Hybrid Technology as an efficiency enabler for the Hydrogen Fuel Cell Vehicle.
03-04-05, 06:59 AM
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Hybrid Technology as an efficiency enabler for the Hydrogen Fuel Cell Vehicle.
The Importance of Hybrids--Beyond The Prius
They're not just working on hybrid technology at Toyota for the sake of gas-electric hybrids alone. They see hybrid technology as an efficiency enabler for the hydrogen fuel cell vehicle.
This chart is from a study that Toyota has conducted. It looks at the relative efficiencies of various types of fuel and engines. The "Well to Tank" numbers relate to what it takes to get the fuel from whatever its source (e.g., petroleum, natural gas) and into the tank of a vehicle. "Tank to Wheel" is what most of us are familiar with: how well the fuel performs. The third column takes both of the other columns into account to come up with the overall efficiency. One striking aspect is that gasoline is fairly efficient as a fuel. Recognize that the 79% for Prius is based on the fact that the Prius uses an internal combustion engine along with the HSD, or Hybrid Synergy Drive. A small engine (76 hp), but an internal combustion engine, nonetheless. Hydrogen doesn't look particularly good. Still, Toyota is proceeding on its fuel cell program. But note that it is working toward one that will be including the hybrid technology that it is using in the Prius. . .and the Lexus 400 h and the Highlander Hybrid.
As Toyota Motor Corp. president Fujio Cho puts it, "Hybrids will continue as a core technology in the future, even when the fuel cell is developed. It will use hybrid technology, as well." He adds, "It will continue to be a core technology at Toyota."
Overall Efficiency (Well-to-Wheel) WELL-TO-TANK (fuel production efficiency) (%) TANK-TO-WHEEL (fuel production efficiency) (%) OVERALL EFFICIENCY (%) (Well-to-Tank x Tank-to-Wheel)
DIESEL 82 23 19
GASOLINE 79 16 18
HYBRID (gasoline)
TOYOTA PRIUS WITH HSD 79 37 29
HYDROGEN FUEL CELL
(compressed hydrogen) 58 38 22
HYDROGEN FUEL CELL HYBRID
(Toyota FCHV compressed hydrogen) 58 50 29
TOYOTA FCHV TARGET 70 60 42
A better looking chart , & more on how the best manufacturer in the industry just keeps getting better in the following article : Toyota & the Art of Continuous Improvement
They're not just working on hybrid technology at Toyota for the sake of gas-electric hybrids alone. They see hybrid technology as an efficiency enabler for the hydrogen fuel cell vehicle.
This chart is from a study that Toyota has conducted. It looks at the relative efficiencies of various types of fuel and engines. The "Well to Tank" numbers relate to what it takes to get the fuel from whatever its source (e.g., petroleum, natural gas) and into the tank of a vehicle. "Tank to Wheel" is what most of us are familiar with: how well the fuel performs. The third column takes both of the other columns into account to come up with the overall efficiency. One striking aspect is that gasoline is fairly efficient as a fuel. Recognize that the 79% for Prius is based on the fact that the Prius uses an internal combustion engine along with the HSD, or Hybrid Synergy Drive. A small engine (76 hp), but an internal combustion engine, nonetheless. Hydrogen doesn't look particularly good. Still, Toyota is proceeding on its fuel cell program. But note that it is working toward one that will be including the hybrid technology that it is using in the Prius. . .and the Lexus 400 h and the Highlander Hybrid.
As Toyota Motor Corp. president Fujio Cho puts it, "Hybrids will continue as a core technology in the future, even when the fuel cell is developed. It will use hybrid technology, as well." He adds, "It will continue to be a core technology at Toyota."
Overall Efficiency (Well-to-Wheel) WELL-TO-TANK (fuel production efficiency) (%) TANK-TO-WHEEL (fuel production efficiency) (%) OVERALL EFFICIENCY (%) (Well-to-Tank x Tank-to-Wheel)
DIESEL 82 23 19
GASOLINE 79 16 18
HYBRID (gasoline)
TOYOTA PRIUS WITH HSD 79 37 29
HYDROGEN FUEL CELL
(compressed hydrogen) 58 38 22
HYDROGEN FUEL CELL HYBRID
(Toyota FCHV compressed hydrogen) 58 50 29
TOYOTA FCHV TARGET 70 60 42
A better looking chart , & more on how the best manufacturer in the industry just keeps getting better in the following article : Toyota & the Art of Continuous Improvement
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