02 May 2019


Allison Transmission presented for the North-American market the new ABE Series, an e-axle powertrain system for ultra-low floor electric bus. Allison unveiled the new e-axle at the Advanced Clean Technology Expo in Long Beach, California.

The ABE Series integrates dual electric motors, a single- or multi-speed gearbox (depending on e-axle model), oil coolers, pumps and power electronics into a bolt-in system that replaces the entire traditional powertrain within the existing frame. It meets the power and space demands of the transit bus industry, including heavy double-decker, articulated and 3-door buses.

“We have a long history with electric hybrid solutions and full electrification is the next evolution,” said David S. Graziosi, Allison Transmission President and CEO.

The ABE-system can handle 100 percent torque in regenerative braking. The axle has a rating up to 28,660 pounds (13 tons). With a dual motor, it has continuous axle output power of 536 horsepower (400 kilowatts) and peak output power of 738 horsepower (550 kilowatts). A single speed e-axle option also is available. Its proprietary cooling allows allows the vehicle to run closer to peak power for longer durations.

Allison states that the bolt-in ABE Series fits existing bus frames and suspensions. The standard system is configured for a 28-inch (700-millimeter) walk through, but has an optional 39-inch (1,000-millimeter) configuration. This makes the system applicable for 12-meter low-floor city and double-decker buses, 18-meter articulated buses and 3-door buses.

Founded in 1915, Allison Transmission is headquartered in Indianapolis, Indiana, USA and employs approximately 2,900 people worldwide. Allison has regional headquarters in the Netherlands, China and Brazil with manufacturing facilities in the U.S., Hungary and India. Allison also has approximately 1,400 independent distributor and dealer locations worldwide.

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