Allison Transmission’s new eGen Flex hybrid system

Allison Transmission has launched its new zero-emission automobile (ZEV)-capable electrical hybrid system, the eGen Flex, because the preliminary product providing beneath its new Allison eGen model.

eGen Flex offers bus fleets with totally electrical, engine-off propulsion and accent energy operation functionality—supreme for zero-emission zones and depot operation. The eGen product household will embody Allison’s portfolio of hybrid and totally electrical merchandise, together with electrical axles.

The eGen Flex system includes a new drive unit, inverter and battery pack. The drive unit features a disconnect clutch that permits engine-off functionality. The smaller and lighter inverter bundle, which is now water ethylene glycol (WEG) cooled, eliminates oil traces. The corporate says the brand new bundle decreases set up complexity, reduces upkeep expense and will increase uptime. The battery pack incorporates the most recent lithium titanate (LTO) expertise, which will increase vitality density, permits for sooner charging and allows pure electrical (engine-off) prolonged vary functionality.

Allison will supply two distinct fashions: eGen Flex and eGen Flex Max. The eGen Flex can be comparable in options and capabilities to the Allison H 40/50 EP electrical hybrid propulsion system, however with the bundle enhancements summarized above. eGen Flex Max will supply totally electrical propulsion for as much as 10 miles, dependent upon obligation cycle and accent load necessities. Each fashions can be supplied in CertPlus configurations on the market in CARB-compliant states. Much like the present H 40/50 EP nomenclature, eGen Flex and eGen Flex Max can even be out there in “40” and “50” configurations primarily based on fleet torque necessities. Elevated Accent Energy 2 can be out there with eGen Flex, and can be required with eGen Flex Max. This functionality electrifies automobile accent methods, reminiscent of air con and electrical warmth. Allison is engaged with transit OEMs and transit fleets to assist a scheduled 2021 business launch of eGen Flex.

“Allison understands that there’s important curiosity in electrification,” mentioned Managing Director Branden Harbin. “We additionally perceive that fleets are reluctant to go all-in on electrification at this early stage. That essential suggestions from our prospects is what impressed Allison to ship this enhanced functionality for coach and transit buses, successfully serving as a bridge answer between standard gas and full electrical options. eGen Flex will allow transit fleets to judge electrical functionality and their electrical vary wants, whereas nonetheless having the peace of thoughts of a diesel vary extender, whether or not wanted for longer routes, for route flexibility, unplanned congestion on routes, or an incapability to recharge attributable to energy grid challenges.”

Supply: Allison Transmission