The new Cummins X15 engine is now available with the Freightliner Argosy in addition to the Detroit DD15.
The new X15 engine fitted to the Argosy is available in output ratings ranging from 485hp to 600hp and up to 2050lb-ft.
The Cummins X15 is an evolutionary development of the 15-litre ISXe5 which features Advanced Dynamic Efficient Powertrain Technology (ADEPT) - a suite of advanced electronic features capable of delivering fuel economy gains through improved powertrain integration.
ADEPT is for use with Eaton's 18-speed automated UltraShift Plus transmission and has been tested in Australia since early 2016.
It utilises load, speed and grade-sensing technology to initiate adjustments to engine power, torque and transmission gear selection to take advantage of vehicle momentum for better fuel economy.
"We are excited to be able to offer the new Cummins X15 to our loyal Argosy customers in addition to the proven Detroit DD15," says Freightliner Director, Stephen Downes.
"Freightliner is the only brand that can give customers at the heavy end of the market the opportunity to choose the big bore engine solution that best suits their application," he says.
The ADEPT package includes two features: SmartCoast and SmartTorque. SmartCoast operates when the vehicle is on a moderate downhill grade by disengaging the front box of the transmission and returning the engine to idle to reduce drag, maintain momentum, and ultimately improve fuel economy.
Once the engine commands the transmission to be put back in gear, the appropriate gear is engaged.
SmartTorque uses torque management intelligence to help eliminate unnecessary downshifts and keep the engine operating in the most fuel efficient 'sweet spot'.
Torque is varied across all gears depending on torque requirement.
Cummins Connected Diagnostics will also be available with the release of the X15.
A telematics system, it automatically processes fault code data, sending instant notifications from Cummins detailing probable root cause and providing recommended actions.
The expert advice, delivered by email, app or web portal, enables the fleet manager to make an informed decision about continuing truck operation and when to schedule a service visit for the most convenient time, thus maximising uptime.
Additional connected solutions that will be added in the near future include Over-the-Air (OTA) engine programming and customisation.
This will allow an engine to be reprogrammed or updated with the latest calibration without having to take the truck to a service bay.