School & Shuttle Bus

Load-Based Shift Scheduling (LBSS)

To optimize fuel economy and maintain superior Allison Automatic performance, Allison LBSS automatically selects between Economy and Performance shift schedules based on the vehicle's actual payload and the grade on which it is operating. It has proven to increase fuel economy by up to 5%*.

*Results may vary depending on operating conditions.

Load-Based Shift Scheduling Flyer

Prognostics

Allison prognostics allow you to quickly monitor oil life, filter life and transmission health. Prognostics take the guesswork and hassle out of scheduling routine vehicle maintenance to save you time and money while providing maximum protection for the transmission. That means less downtime, lower life-cycle costs and, best of all, greater productivity for your fleet.

Vehicle Acceleration Control (VAC)

Controls aggressive driving practices to improve overall fuel economy. VAC limits acceleration by controlling amount of engine torque based on vehicle load. Tests using a simulated bus duty cycle show VAC helps improve fuel economy by up to 3%*.

*Results may vary depending on operating conditions.

Reduced Engine Load at Stop (RELS)

With RELS, the transmission automatically reduces the load on the engine when the vehicle is at a full stop. RELS not only saves fuel, it reduces overall vehicle emissions all while remaining invisible to the operator. This feature is useful for city traffic and duty cycles with frequent stops forcing the engine to idle.

Safety

Since an Allison Automatic is a true, fully automatic transmission, the driver has more time to check mirrors and to look forward and behind. There simply aren’t as many distractions. And that gives the driver more time to do what’s necessary. And what’s necessary is being safe on the street and at bus stops.