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Initial Testing of Hybrid Utility Trucks Shows 40%–60% Drop in Fuel Consumption

29 September 2005

Utility_hybrid
International-Eaton Hybrid Utility truck

Initial independent test results of prototype hybrid utility trucks being used in the WestStart’s Hybrid Truck Users Forum (HTUF) pilot program (earlier post) have shown a decrease in fuel consumption of 40%–60% measured against driving and work cycles typical of the utility industry. The target requirement for the hybrids was a 50% reduction in fuel consumption.

Larger-scale testing involving 24 of the hybrid utility trucks jointly developed by International and Eaton Corporation will begin by year’s end.

These early results are very promising. While we will need to test these trucks on a larger scale and over a longer period of time, we continue to see indications that these vehicles are commercially viable and will deliver real value to customers.

—Bill Van Amburg, senior vice president, WestStart

These initial findings support our vision of making diesel-electric hybrid trucks a viable option. The other benefits we expect, such as extended maintenance intervals and fewer brake changes, further illustrate the promise of this technology.

—George Survant, director of fleet services, Florida Power and Light Company; chairperson of the HTUF Utility Working Group

Utility_hybrid2
Major components of the hybrid utility truck system

The drive system in the utility trucks is in a pre-transmission parallel hybrid configuration, with a 44-kW permanent magnet motor mounted directly in front of the transmission, behind engine and clutch. Li-ion batteries provide the energy store.

The engine is a 6-cylinder 215-hp (160-kW) diesel that delivers 759 Nm of torque.

Power from the engine is used to drive the conventional drive-train directly or converted into electrical energy and stored for use as needed. Electric torque can be blended with engine torque to improve vehicle performance and to operate the engine in the most fuel-efficient range for a given speed or to operate the vehicle with electric power only.

The system recovers kinetic energy during braking, charging the batteries while the truck is slowing down which provides additional power for acceleration. This truck also can operate the utility bucket in electric-only mode, with the engine off, significantly contributing to improved fuel economy.

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September 29, 2005 in Diesel, Fleets, Hybrids | Permalink | Comments (2) | TrackBack (5)

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Listed below are links to weblogs that reference Initial Testing of Hybrid Utility Trucks Shows 40%–60% Drop in Fuel Consumption:

» Initial Testing of Hybrid Utility Trucks Shows 40%–60% Drop in Fuel Consumption from Daffodil Lane
Hybrid technology ends up leading to some very interesting applications in places you wouldn't expect. For example, if you put it in a car, you get a bump up of about 20 to 30 percent fuel economy. Yet you put... [Read More]

» Initial Testing of Hybrid Utility Trucks Shows 40%–60% Drop in Fuel Consumption from Daffodil Lane
Hybrid technology ends up leading to some very interesting applications in places you wouldn't expect. For example, if you put it in a car you get a bump up of about 20 to 30 percent fuel economy, yet you put... [Read More]

» Hybrid Utility Trucks Tests Show 40%–60% Fuel Saving from Treehugger
Initial tests of diesel-hybrid utility trucks indicate that they may garner a 40%-60% fuel reduction. Apparently utility trucks get better fuel reduction than passenger cars because they have massive batteries on board. The tests were performed on prot... [Read More]

» Testss of Hybrid Utility Trucks Show 40%–60% Fuel Saving from Treehugger
Initial tests of diesel-hybrid utility trucks indicate that they may have a 40%-60% reduction in fuel. Apparently utility trucks get better fuel reduction than passenger cars because they have massive batteries on board. The tests were performed on pro... [Read More]

» Tests of Hybrid Utility Trucks Show 40%–60% Fuel Saving from Treehugger
Initial tests of diesel-hybrid utility trucks indicate that they may have a 40%-60% reduction in fuel. Apparently utility trucks get better fuel reduction than passenger cars because they have massive batteries on board. The tests were performed on pro... [Read More]

Comments

I wonder what's the cost difference?

Before we really begin to dig into the issues here, I want to preface my argument by pointing out that some people need SUVs, or big trucks. Farmers in particular, who use SUVs and trucks as actual workhorses, are blameless, as are disabled individuals for whom sitting in a car causes discomfort or pain. These people are forced into using SUVs because of their jobs, or personal injuries. But these people are the minority. Most of the individuals who drive SUVs do so because they are hip, shiny and cool, and...

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