Driving with activated hot shift PTO on AMT gearbox

Today bodybuilder solutions that require a gearbox mounted PTO to be operational while driving, has been using automatic torque converter gearboxes. Traton has explored the possibility of offering Traton’s own, weight- and cost optimized, AMT gearbox instead. Traton research and development has developed a clutch dependant, gearbox driven hot shift PTO that can compete with automatic gearboxes.
 

A hot shift PTO, commonly also called power shift or clutch shift, engage by means of friction discs rather than a dog clutch or sliding gears seen in conventional PTOs. This offer the possibility to engage the bodywork while driving. The development of this product has also made it possible to shift gears with an active clutch dependent PTO while the bodywork is operational. These features can increase customer value in applications that need a gearbox mounted PTO while maintaining a purpose built AMT gearbox.

Gear shifts are made possible by opening and closing the PTO clutch during the shift event. This is managed by the transmission control system and no actions are required by the operator. The control system also monitor a number of parameters in order to verify that all conditions for engagement are fulfilled. These conditions are set to prevent damage to the transmission and ensure safe operation.   
 

In development of this product the Traton modular toolbox and standardized interfaces has made it possible to implement already existing parts. Key parts with a proven design and established supply chain lead to synergies between RoD, manufacturing and procurement. The end result is a more cost effective solution.