Allison Transmission introduces eGen Power electrical hybrid propulsion system for tracked fight automobiles


Allison Transmission launched the eGen Power electrical hybrid propulsion system for tracked fight automobiles. Designed for 50-ton tracked automobiles, the eGen Power meets the necessities for the US Military’s Optionally Manned Preventing Automobile (OMFV) program. The eGen Power can be scalable to 70-ton tracked automobiles, making it able to assembly future Fundamental Battle Tank necessities as properly.


This product is greater than a transmission—it’s a energy distribution system that includes an electrical motor and inverter for on-board automobile energy and parallel hybrid operation. This permits engine-off mobility to cut back enemy detection—each acoustic and thermal—ideally growing soldier survivability.

—,Dana Pittard, Vice President, Protection Applications, Allison Transmission

Allison has mixed its a long time of expertise with each fight automobile and electrical hybrid propulsion options to develop the brand new eGen Power system. Previous to initiating the design of the eGen Power, Allison leveraged the voice of the shopper by conducting a complete commerce examine based mostly on greater than 70 years of cross-drive improvement to pick the optimum structure for an electrical hybrid fight automobile with the objective of optimizing effectivity, efficiency, reliability and manufacturability.


Engine energy 850 kW / 1140 hp
Width 1575 mm / 62 in
Size 1091 mm / 43 in
Top 955 mm / 37.6 in
Dry weight
Automobile weight 36-55 tonne
Gearing 8 ahead, 3 reverse
Mechanical ratio 11.9:1
PTO choices Non-compulsory mechanical or electrical
On-board automobile energy 220 kW @ 600V steady
eMachine 600 V system
Drive-by-wire succesful Sure

To scale back developmental threat, Allison has mixed established components from its X1100-3B1 transmission, used within the Abrams Fundamental Battle Tank, with new parts that comply with confirmed design methods for the gearing. The excessive effectivity vary pack makes use of eight ahead and three reverse gears offering an environment friendly 12:1 ratio protection and generates 220 kilowatts {of electrical} energy.

We’re more than happy with sub-system efficiency testing and validation. Presently the eGen Power has started dyno and engine stand testing adopted by automobile testing in early 2023. System and automobile degree integration experience is a core competency and differentiator for Allison, and we’re proud to ship these subsequent technology capabilities in partnership with our protection prospects.

—Michael York, Government Director, Protection Engineering, Allison Transmission

Allison is partnering with American Rheinmetall Automobiles (ARV) to combine the eGen Power into their OMFV providing. The ARV automobile delivers best-in-class mobility and unmatched energy in a extremely maneuverable and trendy chassis that may rework the way in which troopers and squads accomplish their mission.


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