Daimler Trucks North America introduced the Detroit Transmission – the next component in the complete Detroit powertrain – making Detroit the only OEM that can offer a complete powertrain package, including Detroit axles and heavy-duty engines, according to the company.
“Automated transmissions represent the next generation of technology that will increase efficiency and enhance performance,” said Martin Daum, DTNA CEO. “When packaged with all of the Detroit powertrain products, customers have the best resources in the world to enhance their bottom lines.”
The 12-speed, direct- or over-drive automated transmission combines a traditional clutch-actuated manual gearbox with high-speed, computer-controlled shift and clutch actuators, which automatically and seamlessly selects the right shift pattern for fuel economy and engine power, according to the maker.
The direct drive transmission combines improved slow speed maneuvering capabilities with high road speed efficiency. Features such as active driveline protection, which anticipates torque windup, and torque limiting also enhance reliability and driver comfort. It employs advanced fuel efficiency technologies including skip shifting, enabling drivers to run through lower gears faster to achieve cruising speed sooner; and EcoRoll, which helps the vehicle coast more efficiently. The transmission’s lightweight aluminum design results in an up to 300-lb. weight savings compared to cast iron designs, benefitting fuel economy or increasing bulk payload.
The transmission also is equipped with driver-friendly features, including: a two-pedal system for ease of operation; helical gears that reduce noise; a control module that communicates with the entire powertrain; a kick-down feature that improves vehicle acceleration; Hill-Start Aid option to prevent roll-back after standing still on a hill; enhanced cruise control and improved dash display; shift lever with gear, auto/manual mode and brake selection; and driver selectable shift modes for performance or economy.
The maker added that easy serviceability, routine maintenance intervals and a comprehensive warranty program further extend the value of the Detroit transmission.
