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Freightliner Trucks’ AMT3 automated-manual transmission for Business Class M2 vehicles combines the design principles of a manual transmission with intelligent electronics to form an automated two-pedal shift system that equalizes driver performance and improves fuel economy. Unlike automatic transmissions, the Freightliner AMT3 eliminates the torque converter and instead couples the engine to the transmission with a hydraulically actuated clutch. This innovative clutch actuation results in minimal torque interrupt during acceleration and shifting, while providing constant lock-up. In addition, clutch control and gear shifts are managed by the Transmission Control Unit (TCU). The TCU’s intelligent shift logic evaluates road, grade and load conditions to perform shifts at optimal engine RPMs, resulting in fast and smooth shifting, and significant fuel savings.