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Powertrain

April 2017, TruckingInfo.com - Department

Downspeeding Comes of Age

The game-changer in the development of downsped drivetrains was the automated manual transmission, which offered new opportunities for fine-tuning and controlling powertrains at cruise speeds. Photo: Cummins

By Jack Roberts

The question of how downspeeding is helping fleets save on fuel – and what's in store for the future – was the topic at a recent session at the American Trucking Associations’ Technology & Maintenance Council annual meeting.

Tags: Fuel Efficiency, Powertrain, Engines, Downspeeding

December 2016, TruckingInfo.com - Test Drives

Quick Spin: Paccar’s New Powertrain

The test truck was a 2017 Kenworth T680 with a 76-inch high-roof sleeper. Photos: Jim Park

By Jim Park

With two of the three major components in place, Paccar touts the advantages of an integrated powertrain.

Tags: Kenworth, Paccar, Powertrain, Kenworth T680, MX-13

January 2015, TruckingInfo.com - Feature

Powertrain Specs: More Science Than Art

Torque is both an enabler of downspeeding and a source of concern about delivering peak torque at very low engine speed.

By Jim Park

Torque is both an enabler of downspeeding and a source of concern about delivering peak torque at very low engine speed.

Tags: Powertrain, Lightweighting, Torque, Downspeed

February 2006, TruckingInfo.com - Editorial

Big Changes In 50 Years

By Jim Winsor, Executive Editor

Here's a nostalgic review of some of the names and brands that have come and gone over the past half century.

Tags: TMC, Powertrain

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