Allison Transmission, in partnership with US bus manufacturer Gillig, will offer Allison’s eGen Flex electric hybrid propulsion system.
The Allison eGen Flex system is capable of improving fuel economy by up to 25 per cent compared to a conventional diesel bus, according to Allison, and has the ability to operate accessories such as air-conditioning and electric heat at optimal efficiency with electric power.
The full EV capability of the eGen Flex propulsion system can also eliminate engine emissions and noise while loading and unloading passengers, and while operating in densely populated areas or depots using geo-fencing. The eGen Flex system offers full electric drive capability for up to 10 miles, depending upon duty cycle and accessory load demands.
“Gillig and Allison have established a joint partnership dedicated to optimised integration and a mutual commitment to innovation,” says Rohan Barua, Allison vice president of sales, North America. “We are excited to continue our history of innovation with Gillig through the launch of the eGen Flex propulsion system, which provides our mutual customers full electric operation with engine-off capability, without capital infrastructure investment in charging stations.
“Through this solution, Gillig and Allison are able to offer customers full EV capability, while maintaining a diesel engine for added flexibility, effectively serving as a bridge solution to EV.”
Gillig received its first order for Allison eGen Flex electric hybrid-equipped buses from IndyGo, the Indianapolis Transportation Corporation.