News/Events News Releases

2007

U.S. Air Force to Display Mack Hybrid Electric Vehicle
Granite Model Slated for 2007 Hybrid Truck User Forum

LEHIGH VALLEY, PA (September 14, 2007) - The United States Air Force will display Mack Trucks, Inc.'s innovative and fuel-saving hybrid technology at the Hybrid Truck User Forum (HTUF), September 19 to 21 in Seattle. A Mack Granite® model dump truck, built for the Air Force's Advanced Power Technology Office (APTO) and currently stationed at Nellis Air Force Base in Nevada, will be at the HTUF exhibition and ride and drive.

"Hybrid systems can have a major impact on reducing the more than 38 billion gallons of diesel fuel the U.S. trucking industry consumes every year," said Paul L. Vikner, president and CEO of Mack. "Mack's research indicates that hybrid electric systems in heavy-duty trucks could save as much as 35 percent of the fuel consumed by conventionally powered vehicles."

"Thanks to the support of the Air Force and Congress, we've already met many of the challenges involved in turning the hybrid concept into a reality in heavy-duty trucks," Vikner said. "Mack is proud to play a leading role in making these cleaner, quieter, fuel-efficient vehicles significant contributors to the prosperity of our customers - and our country - in the future."

The Mack hybrid electric powertrain features an integrated starter, alternator and motor referred to collectively as an electric machine. The electric machine assists the Granite vehicle's Mack® MP7 diesel engine in providing torque to the wheels and regenerates energy during braking. This energy (stored in ultracapacitors) is then used in place of diesel fuel.

This technology provides the maximum fuel savings on routes with frequent braking and accelerations, particularly refuse collection and urban delivery, as well as certain construction applications.

Specifications for Mack Granite Hybrid Diesel Electric Truck

Engine:
Type: Mack Model: MP7 - 365M, 11-liter turbocharged diesel
365 hp @ 1500-1900 RPM

Electric Machine:
Type: Permanent Magnet;
Synchronous Motor
Power: 161 hp peak; 94 hp continuous
Torque: 590 lb-ft. peak; 295 lb-ft continuous

Energy Storage
Type: Ultracapacitors
Usable Energy: 582 watts
Voltage: 300-725 volts DC

Transmission
Type: 12-speed automated manual

A Mack Granite® diesel-electric hybrid truck will be on display at the Hybrid Truck Users Forum in Seattle on September 21. The hybrid Mack Granite was built for the U.S. Air Force Advanced Power Technology Office and is stationed at Nellis AFB in Nevada.

The Mack hybrid electric powertrain features an integrated starter, alternator and motor referred to collectively as an electric machine. The electric machine assists the Granite vehicle's Mack® MP7 diesel engine in providing torque to the wheels and regenerates energy during braking. This energy (stored in ultracapacitors) is then used in place of diesel fuel.

Dedicated to quality, reliability, and total customer satisfaction, Mack Trucks, Inc. has provided its customers with innovative transportation solutions for more than a century. Today, Mack is one of North America's largest producers of heavy-duty trucks, and MACK® vehicles are sold and serviced in more than 45 countries worldwide. All Mack manufacturing locations are certified to the internationally recognized ISO 9001 standard for quality and ISO 14001 standard for environmental management systems. Mack is also a proud sponsor of Share the Road, an American Trucking Associations' public information campaign aimed at enhancing the safety of our nation's roadways.

Mack is a member of the Volvo Group, a publicly held company headquartered in Gothenburg, Sweden. With annual sales of approximately $34 billion, Volvo business areas include heavy trucks, buses, construction equipment, marine and industrial drive systems, aerospace, and financial services. In the United States, Volvo shares are listed on NASDAQ and are traded as ADRs (symbol: VOLV).