Allison Transmission’s Electric Hybrid Solution Debuts on NYCT Buses

Allison Transmission’s next-generation electric hybrid propulsion solution, eGen Flex™, will be put into revenue service at New York City Transit (NYCT) in May.

The electric hybrid system from Allison offers fully electric propulsion when customers need it, without the added infrastructure requirements of full electrification. The eGen Flex system includes full electric drive capability for up to 10 miles, depending upon duty cycle and accessory load demands. The option will be set automatically through geofencing technology for zero-emission zones and passenger depots for a quieter and cleaner environment, helping to enhance the quality of life and protect our environment.

Allison’s eGen Flex system can improve fuel economy by up to 25% versus a conventional clean diesel bus and can operate accessories such as air conditioning and electric heat at optimal efficiency with clean electric power. Moving these accessories to electric power reduces the strain on the engine, reducing fuel consumption and maintenance costs over the vehicle’s lifetime. This also reduces dependence on fossil fuels at the pump, while delivering increased uptime, according to an Allison press release.


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