Volvo Trucks North America I-Torque powertrain can be paired as an option with the D13 Turbo Compound engine.
According to Volvo, I-Torque enables the truck to operate optimally with up to a 31 percent increase in fuel efficient speed range, achieving up to 8.5 mpg at 85 mph. I-Torque comprises the D13 Turbo Compound (TC) engine, the I-Shift with overdrive features, adaptive gear shift strategy, a new map-based version of the predictive cruise control Volvo I-See, and low rear axle ratios as low as 2.15.
Volvo Trucks North America
Prior to 2000, there were primarily two types of transmissions available for medium- and heavy-duty trucks – manual and torque converter automatic. The Class 8 trucks used for long-haul applications typically relied on multi-speed manuals while the vocational truck market was split between manual transmissions and the torque converter automatic transmissions.
Right around the year 2000 a new transmission option began to gain traction - the Automated Manual Transmission (AMT). This option began as a modified version of a manual transmission that used computer-controlled shifting.
Volvo introduced its first I-Shift AMT to Europe in 2001 and subsequently brought it to the North American market in 2007. Since then, more than a million Volvo Trucks around the world have been sold with the Volvo I-Shift transmission. In 2013 the I-Shift was made a standard feature across the entire model range, resulting in a current overall order rate of 94%.