Fleet Management News & Business Info | Commercial Carrier Journal
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DTNA showcases Cascadia Evolution with DT12 transmission Integrated powertrain maximizes fuel efficiency, safety spoke for the first time about its plans for a vertically integrated powertrain using proprietary components from Detroit Diesel Corp. The company followed through with the introduc- tion of its Detroit axle line in January and completed the powertrain rollout by announcing its DT12 transmission in March. At an August press event in Napa, L ENTER TO WIN $500 Visit www.timken.com/techseries to complete the Tech Series training and receive a Timken hat. Each module you complete gives you a chance to win $500, so finish all seven modules for seven chances to win! We will give away one $500 gift card every month between July and November. Complete details and rules can be found at www.timken.com/techseries. Calif., DTNA provided a hands-on demonstration of the new Freight- liner Cascadia Evolution equipped with the 2014 DD15 engine paired with the new DT12 OA 2050 auto- mated manual transmission. Avail- able in direct-drive and overdrive, the DT12 will be in production in May 2013. A smaller DT12 OB 1650 to be paired with the DD13 will be available later that year. Features of the DT12 are designed to maximize fuel efficiency and improve vehicle safety and perfor- mance. The 12-speed transmission weighs in at 789 pounds (the DT12 OB 1650 weighs 670 pounds) and combines a traditional manual gearbox with high-speed computer- controlled shift and clutch actuators that select shift pattern and clutch engagement automatically. One way the DT12 maximizes fuel www.timken.com Timken® is a registered trademark of The Timken Company. © 2012 The Timken Company economy is its eCoast feature that places the DD15 engine in idle as the tractor coasts down grades while maintaining vehicle momentum. As the tractor slows, the transmis- sion seamlessly kicks back into gear to maintain the desired speed. In a 2,500-mile test run from San Diego to Gastonia, N.C., the transmission's eCoast was engaged for 650 miles of the journey. 44 COMMERCIAL CARRIER JOURNAL | SEPTEMBER 2012 Available in direct-drive and overdrive, the DT12 automated manual transmission will be in production in May 2013. Another fuel-saving feature of the DT12 is Skip Shift, a feature that lets the transmission run through lower gears more quickly by skipping gears and select shift points in order to achieve cruising speed sooner. An advanced cruise control sys- tem features three levels: a low range that tops out vehicle speed at 3 mph over the set cruise speed, a medium range that increases vehicle speed by 6 mph, and a no-limit high range. A "creep mode" simulates a torque converter to improve maneuverabil- ity at low speeds for heavy traffic, docking and parking applications. In addition, a hill start aid prevents rollback when starting from a stop on an incline. The transmission is integrated with DTNA's Virtual Technician: When the transmission light comes on, a fault code is sent to the Detroit Customer Support Center for analy- sis. The DT12 comes with a five-year 750,000-mile warranty and a two- year 250,000-mile warranty on the clutch – Jeff Crissey ast October, Daimler Trucks North America Write 248 on Reader Service Card or visit ccjdigital.com/info