Allison Transmission has added Load-Based Shift Scheduling (LBSS) to its 2009 model year 1000/2000/3000/4000 Series transmissions. LBSS automatically selects between Economy and Performance shift schedules based on the vehicle’s payload and the grade it is operating on, optimizing fuel economy and maintaining high productivity capability, the company said.
According to Allison, LBSS uses advanced algorithms to calculate real-time vehicle load and operating grade. It is calibrated to primarily use the Economy mode, but automatically selects Performance when conditions require it, the company added.
LBSS is part of a number of new features for the 1000/2000/3000/4000 Series products, adding to three prognostic features—Oil Life Monitor, Filter Life Monitor and Transmission Health Monitor--introduced last month.