An integrated electrical drive-axle for trucks has been launched by Allison Transmission. The new AXE Series is claimed to be one of the most powerful e-axle systems for medium- and heavy-duty trucks in the world.
A fully-integrated electric powertrain system designed to fit inside a standard commercial truck’s chassis frame in place of conventional mechanical drives; the AXE Series features electric motors, a two-speed gearbox, oil coolers and pumps, in addition to power electronics, providing a complete bolt-in powertrain solution.
With a one million-mile (1.6 m km) design-life for medium- and heavy-duty truck applications, the system integrates one or two high-speed electric motors and a multi-speed transmission, eliminating the need for additional driveshafts and support structures. The dual-motor axle has a continuous output of 400 kW (536 hp) and peak output of 550 kW (738 hp).
A tandem axle configuration is also available, and the system can handle 100 per cent torque in regenerative braking. The complete integration of the AXE Series is said to deliver increased efficiency and excellent continuous power through superior internal cooling.
Meanwhile, Allison has also acquired two significant players in the development of systems for electric vehicles: Vantage Power and the electric vehicle division of AxleTech.
Vantage Power is a London technology company which is developing electrified propulsion and connected vehicle technologies for medium- and heavy-duty vehicle manufacturers and their suppliers. With particular focus on battery technology development, vehicle integration and control systems, as well as vehicle connectivity and telemetry, Vantage Power technologies have been deployed in a wide range of applications from complete electric hybrid repower systems for buses to grid energy storage.
AxleTech designs, engineers, manufactures, sells and services axles and integrated electrified axle solutions for on- and off-highway heavy-duty commercial vehicles. Established in 1919, AxleTech develop advanced powertrain systems, axles, components and aftermarket parts for global customers. The EV systems division is based at AxleTech’s headquarters in Troy, Michigan.