Executive Order Approves Parallel Drive for 2015 Buses
Allison Transmission and Cummins report certification of Allison’s H 40/50 EP hybrid drive with Cummins diesel engines from the California Air Resources Board – clearing the way for model year 2015 bus sales.
The approval includes Cummins ISB6.7 and ISL9 diesel engines.
CARB first provided approval last year, the companies said, noting that the process requires the agency executive order to be reviewed on a model year basis.
“We are pleased to remain the first and only hybrid system manufacturer approved for the transit market in California,” Deborah Gordon, executive director of regulatory issues and hybrid programs for Allison, said in a release.
Big Break on Brake Maintenance
Allison’s H 40/50 EP hybrid drive may be used in both straight and articulated transit buses. “It has been shown to improve fuel economy up to 25% over similar diesel buses,” the manufacturer says, while “its regenerative braking capability can significantly extend the brake change interval by as much as 350%.”
Allison says that since 2003, it has delivered more than 6,700 hybrid propulsion systems which have accumulated almost 660 million miles, saving nearly 35 million gallons of fuel and preventing 345 metric tons of carbon dioxide from entering the atmosphere.
Allison has some 1,400 independent distributor and dealer locations worldwide.
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Source: Allison Transmission with Fleets & Fuels follow-up