TM4 introduces the SUMO HP line with the launch of a new motor/generator for the commercial heavy-duty market



TM4 introduces the SUMO HP line with the launch of a new motor/generator for the commercial heavy-duty market

October 10, 2017

Boucherville, Quebec /CNW Telbec/ – TM4 today announced the expansion of its SUMOTM family of electric powertrains with the introduction of the new SUMO HP line which is dedicated to high-power applications. As part of this new line, TM4 is launching the SUMO HP HV900, a new motor/generator and inverter combination for the commercial heavy-duty market.

The SUMO HP HV900 offers 190 kW of continuous power and 915 Nm of torque in a casing of only 200 mm in length. It was purposely developed for series and parallel-hybrid configurations and can be coupled with diesel engines, multi-speed gearboxes or integrated to axles for ultra-low floor buses. TM4 offers this new motor/generator with its well-proven 3-phase CO150 inverter, already used in thousands of vehicles worldwide.

“Several applications relying on long range and low downtime are not yet suitable for complete battery-based operation without significant infrastructure or battery technological breakthrough. Therefore, our offering of a compact and efficient gen-set is a valuable asset to enabling electrification in urban delivery trucks, inter-city buses and even long-haul trucks”, says Eric Azeroual, Sales and Customer Service Director at TM4.

The efficiency of the system reaches 95% and has been developed to match the efficiency of a diesel engine, which is instrumental to optimize fuel savings. In fact, in a series-hybrid, the combined use of the electric traction system, the optimized gen-set and electrified accessories can result in a minimum of 50% in fuel economy compared to a conventional diesel-powered vehicle.

TM4 introduced its SUMO family of powertrains five years ago to assist its customers with cost-effective vehicle electrification. The SUMO HP line is the latest member of this family that already includes the SUMO MD line, dedicated to medium-duty vehicle applications and the SUMO HD line, targeted at heavy-duty vehicle applications.

As announced in May 2017, the SUMO HP HV900 is currently being used as part of the plug-in hybrid powertrain system developed in a joint effort with Cummins. This new motor/generator will be shown on booth 837 at Busworld Kortrijk, taking place from October 20-25, 2017 in Kortrijk, Belgium.

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About TM4

A wholly owned subsidiary of Hydro-Québec, TM4 designs and manufactures electric motors, generators, power electronics and control systems suitable for the commercial, automotive, marine, mining, rail, motorsports and recreational vehicle markets. TM4 contributes to the highest possible energy conversion efficiencies thanks to its expertise in permanent magnet motors, thermal management, coil winding, outer-rotor topology, and motor and inverter control algorithms. In addition to its production facilities in Canada and China, TM4 has set-up a worldwide distribution and support network to serve its rapidly expanding global customer base. For more information, visit