Eaton Corp. has launched its next generation of automated transmissions for over-the-road and vocational truck applications. The new UltraShift PLUS family of fully automated transmissions incorporates new automated clutch technology and intelligent shift selection software that employs grade sensing, weight computation and driver throttle commands that is designed to make more intelligent shift decisions and provide more efficient, safe and productive vehicle performance.

A total of six new transmission platforms are now available as part of the UltraShift PLUS family. The new platform designations, which represent a wide range of new tailored transmission designs include the Linehaul Active Shifting (LAS) transmission, available in both an overdrive and direct-drive; the Multipurpose High Performance (MHP) transmission; the Multipurpose Extreme Performance (MXP) model; the Vocational Construction Series (VCS); the Vocational Multipurpose Series (VMS); and the Vocational Extreme Performance (VXP).

All of the UltraShift PLUS launches and shifts are automated with the use of a new self-adjusting electronic clutch actuator (ECA) designed to provide fast, smooth engagements. The new transmissions also share a Hill Start Aid feature to prevent rollbacks on grades; an oil level sight glass to easily check fluid levels; six- and eight-bolt PTO availability; Automatic, Manual and Low mode selections; and a Creep feature for significantly improved maneuverability with continuous low-speed control.

Combining the six platforms with different ratio sets and custom-designed shift calibrations in the software results in hundreds of individual configurations designed specifically for each application and powertrain.

The new UltraShift PLUS transmissions will soon be available for limited quantity release in a wide variety of heavy duty truck vocations for all makes and models of heavy-duty trucks manufactured in North America. Full production is expected to begin in 2010.