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TM4 and Cummins Team on for PHEVs

May 15, 2017 in Companies, Electric Drive, EVs, EVSE, Hybrids, transit by Rich Piellisch  |  No Comments

‘TM4’s Expertise and Real-Road Experience Will Be Instrumental’

Citing its experience in the China market, TM4 announced last week a joint effort with Cummins to develop a PHEV/plug-in hybrid electric vehicle powertrain for “for Class 7/8 transit buses that can reduce fuel consumption by at least 50% over conventional hybrid buses.

TM4 and Cummins are targeting fuel savings of at least 50% for their PHEV system for Class 7/8 transit buses.


“The project aims to provide transit authorities with a flexible, more efficient drivetrain and a long range zero emission capability for inner city routes, states a release.

TM4, an electric driveline subsidiary of Canada’s Hydro-Quebec utility, says its equipped “an astonishing 5000 buses in China last year.

22 Miles All-Electric & Fast-Charge Capable

“TM4’s expertise and real-road experience will be instrumental in developing an optimized powertrain for plug-in transit buses,” the company says.

“Our goal is to offer a system that can achieve 35 kilometers EV range [about 22 miles] and benefit from the 450 kilowatt fast charging infrastructure to recharge in less than 5 minutes,” TM4 managing director Robert Baril said in a release.

“The range extender,” he said, “allows for peace of mind and significant flexibility.”

Cummins Will Optimize the Range-Extender

Cummins researchers will optimize the powertrain by selecting the engine with the best architecture to use as an electric commercial vehicle range extender, TM4 says, “using the engine to manage the charge level of the all-electric drive battery pack.

“The range extender will be integrated, using advanced vehicle controls, with the electrified powertrain and other applicable technologies.”

“The close integration and control of the electrified powertrain with an appropriately selected engine is critically important to developing a plug-in hybrid electric vehicle system,” Cummins research and technology VP Wayne Eckerle says in the TM4 release.

Cummins ‘Can Become a Significant Player in Electrification’

“We believe that through the team’s efforts we can become a significant player in electrification of commercial vehicles by providing complete systems to benefit our global customers.”

The two companies’ plug-in hybrid powertrain will be shown for the first time at the UITP Global Public Transport Summit, which takes place May 15-17 in Montreal.


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Source: TM4 with Fleets & Fuels follow-up

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