During last week's Society of Automotive Engineers' 2005 World Congress, the Army's Tank-Automotive Research, Development and Engineering Center demonstrated a hybrid vehicle chassis that can be fitted with multiple bodies to replace Humvees, Jeeps, armored vehicles and pickup trucks.
Cutting fuel costs and reducing maintenance were the driving forces behind the decision to create hybrid vehicles, according to Hal Almand, the Army's light tactical forms team leader.
The vehicle is powered by a small, three-cylinder diesel engine and two hybrid motors. It would cost about $20,000 to manufacture and could replace a $65,000 Humvee, Almand said. The vehicles are expected to get about 50 miles per gallon, compared to the Humvee's current 11 mpg. "The more money we can save the better," Almand said.
Like the Toyota Prius, the prototype vehicle minimizes fuel use by running exclusively on the electric motors at low speeds or when idling. The Army designed the vehicle for easy repair by providing unobstructed access to the engine, electric motor and drive train. The batteries are located in the center of the chassis beneath the vehicle for easy access.
The vehicles would likely be used in non-tactical situations to transport soldiers within an Army base where the Humvee is overkill, according to Almand. The prototype vehicle was made from "off-the-shelf components" in less than 90 days to prove that the technologies are for real, he said.
Vehicles produced by the military have become adapted to become popular consumer models in the past, and the new hybrid platform could also make that transition, according to Dan Kahn, road test editor at automotive website Edmunds.com. Kahn said diesel hybrid vehicles are fuel-efficient "when used for short hops, like on a military base. It would be a perfect application and would save a lot of fuel."
Kahn said potential customers would include former soldiers who like to buy vehicles that they used while in the service. Hummer and Jeep owners love their vehicles because of their simple design and rugged looks, Kahn said, and an Army-produced diesel hybrid could follow in those vehicles' tracks and became a status symbol.
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