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Kit: Allison Transmission

What is your product/technology?

Allison Transmission’s medium and heavy-duty fully automatic transmissions and hybrid propulsion systems for commercial vehicles, for on and off-road applications. Its transmissions are built to be reliable, easy to use, durable and able to match specific customer demands.

How does it work?

Allison fully automatics are full power-shifting transmissions, providing the benefits of Continuous Power Technology.  Its transmissions do not use dry clutches, unlike manual or automated manual gearboxes (AMTs), and ensure an uninterrupted flow of engine power to the driveline, even during shifts.

What benefits does it offer?

The heavy-duty Allison torque converter provides exceptional startability, superior shifting performance, fast acceleration and virtually no rollback, whilst reducing strain and vibration on the entire driveline. The transmission’s electronic control module provides smooth shifts and because there is no traction interruption, vehicles can accelerate quickly, even on steep hills or on slippery, muddy ground. Sand or snow can be easily and safely traversed.

Driver stress and fatigue is also reduced and finally, helical gears in the transmission help to reduce noise.

Where would it ideally be used?

In severe on, off-road and even stationary applications, from transporting aggregates in South Africa to moving people in CNG-powered city buses in Turkey or China. The materials recycling sector benefits hugely from equipping its vehicles with Allison transmissions due to their positive impact on ensuring an efficient operation cycle and reduced maintenance cost.

Where has it been used?

Allison transmissions are used all over the World in a broad range of applications. Refuse and recycling are certainly key missions but they are regularly used in emergency, distribution, construction, earth movement, military, public transport and special vehicles. Recently, Kamag of Germany specified an Allison on its new slag pot transporter for the challenging task of safely and quickly maneuvering scorching hot slag in smelting and steel plants. The 82-tonne vehicle hauls a 5.7 metre long and 4.35 metre high slag pot, containing slag at 1300°Cwith a capacity of 45 m³.

Any savings?

Durability and superior performance allow higher productivity and reduced operational costs. For example, the Montevideo fleet of refuse trucks in Uruguay, which runs 56 Scania and Mercedes trucks, all equipped with Allison automatic transmissions, reports dramatic improvements in maintenance costs. On average, a full maintenance service on the Allison automatic transmissions is completed every six years, whereas with the previous manual transmissions, they needed to be repaired every 18 months, due to clutch wear and tear.

Any future applications?

The new Allison TC10 transmission has recently been made available by defence vehicle manufacturer Navistar, in the ProStar and TranStar variants within its Internationalrange.  The TC10 is specifically designed for both city and highway tractor duty cycles and provides a unique blended architecture with full power shifts, a torque converter and a twin countershaft gearbox. We are also very excited about our forthcoming, unique H 3000 fully automatic, parallel hybrid system for medium- and heavy-duty vehicles. Based on our 3000 Series transmission, the hybrid system is designed to offer potential improvement in fuel consumption of up to 25% in a variety of truck applications, depending on the duty cycle.

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