31 Aug 2020


Allison Transmission has made an agreement with IndyGo, the Indianapolis Transportation Corporation (US), to supply its next generation H 40 EP hybrid propulsion solution for transit buses as part of a 27-unit bus procurement. The Allison H 40 EP will be paired with the Cummins B6.7 in 24 of the 27 Gillig buses.

In addition, IndyGo, Allison and Cummins are partnering to lead the charge in innovative propulsion solutions by integrating Allison’s revolutionary new electric hybrid propulsion system, eGen Flex into three of IndyGo’s new buses. The eGen Flex Max specified by IndyGo will enable pure electric (engine off) operation for up to 10 miles. The eGen Flex system is capable of improving fuel economy by up to 25% versus a conventional diesel bus, is the claim made by Allison. It has the ability to operate accessories such as air conditioning and electric heat at their optimal efficiency. Moving these accessories to electric power also reduces the strain on the engine and reduce fuel consumption and maintenance costs. In electric mode in zero emission zones and bus depots through the use of geo-fencing fuel consumption and CO2 emissions are even more reduced.

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