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August 2006


Eaton to develop hybrid system for Class 8 commercial vehicles

Eaton Corporation has announced it has begun development of a hybrid electric power system for the heavy-duty Class 8 commercial vehicles, a category that includes refuse trucks.

The heavy-duty system will be similar in design and will share many of the same components as Eaton’s medium-duty hybrid electric system built for Class 4-7 vehicles, but will be adapted for Class 8 vehicles with on-highway applications.

Fleets using Eaton’s heavy-duty hybrid system will experience reduced fuel consumption both while driving and when parked. Recent independent test results have shown a 5-7 percent savings versus a conventional Class 8 vehicle while driving, and a savings of one gallon per hour when parked. Those savings equate to about $9,500 a truck per year in normal operation, resulting in cost savings for a typical truckload carrier with 1,000 power units to $9.5 million per year.

Eaton’s heavy-duty hybrid electric power system will be built using an automated manual transmission with a parallel-type “direct” hybrid system, incorporating an electric motor/generator located between the output of an automated clutch and the input to a Fuller(R) UltraShift(R) transmission.

Eaton’s heavy-duty hybrid power system is expected to be available before 2010.

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