AFS Trinity Power Corporation is an American corporation headquartered in Medina, WA with an engineering center in Livermore, CA that develops technology for plug-in hybrids. The company has developed PHEV technology that actively combines batteries with ultracapacitors. The company asserts that the combination of high-power ultracapacitors, which prefer to discharge and recharge quickly, and high-energy lithium-ion batteries, which prefer to discharge and recharge slowly, makes for a system with both long-life and high energy-density storage
AFS Trinity claims that this "Extreme Hybrid" technology makes it possible for plug-in hybrid electric vehicles to achieve the equivalent of 150 miles per US gallon (1.6 L/100 km; 180 mpg-imp), travel 40 miles (64 km) per charge in all-electric mode and use gasoline for additional range (limited by gasoline tank size) in hybrid mode.[1] The company also reports that its prototype "XH-150S" modifiedSaturn Vue SUVs demonstrated 11.6 second 0-60 performance in electric-only mode and 6.9 second 0-60 performance in full hybrid mode, which would be comparable to a Porsche Cayenne.[2]
AFS Trinity's Extreme Hybrid prototypes have been test-driven by journalists from The New York Times,[3] The Washington Post,[4] ABC World News,[5] CBS Evening News,[6] CNN,[7] and Salon
The powertrain using two forms of energy storage is disclosed in US patent application 11/519,350.[14]
The application describes a family of architectures where a battery is used in conjunction with a second energy storage device which may be an ultracapacitor, a flywheel, or a second battery. The purpose of the second energy storage device is to protect the battery from high current during high power operation.
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