Next Generation Electric Hybrid Buses Featuring Allison Transmission’s eGen Flex

Aug. 18, 2022
Allison Transmission
The Allison Transmission eGen Flex, paired with the Cummins B6.7 engine in GILLIG buses, is capable of traveling in electric-only mode for up to 10 consecutive miles or 50 minutes before converting back to hybrid propulsion.
The Allison Transmission eGen Flex, paired with the Cummins B6.7 engine in GILLIG buses, is capable of traveling in electric-only mode for up to 10 consecutive miles or 50 minutes before converting back to hybrid propulsion.

The eGen Flex, paired with the Cummins B6.7 engine in GILLIG buses, is capable of traveling in electric-only mode for up to 10 consecutive miles or 50 minutes before converting back to hybrid propulsion. This electric-only mode can be utilized multiple times per route and per day. The eGen Flex can operate up to 50% of the time in engine off mode while still powering auxiliary systems like air conditioning and heat at optimal efficiency. The system’s electric-only mode is activated through geofencing technology and eliminates engine emissions and noise while loading and unloading passengers in dense pedestrian areas and zero-emission zones.

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