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TM4 to supply Chinese bus manufacturers with electric propulsion systems

The direct-drive systems reduce electricity consumption by 10% to improve battery autonomy.


MONTRÉAL — TM4 and its Chinese joint venture partner Prestolite Electric Beijing (PEBL) have received orders from major Chinese bus manufacturers for more than 350 of the company’s SUMO electric motor systems.

“These orders demonstrate the commercial potential of the SUMO systems,” said TM4 president Claude Dumas. “It is a significant step forward that paves the way for other agreements on the Chinese market, where half of the world’s buses and heavy trucks are built, as well as on other markets.”

The joint venture, Prestolite Electric Propulsion Systems (PEPS), has received a firm order for 250 SUMO HD electric motor systems to power 12- and 18-metre buses for Foton, the largest manufacturer of buses in Beijing, China’s capital.

PEPS also received an order for 100 SUMO HD and MD systems for Bonluck Bus of Nanchang, capital of the Jiangxi province.

Financial details of both deals have not been released.

The direct-drive SUMO systems reduce the complexity and the cost of the propulsion chain as well as lower electricity consumption by 10% for additional battery autonomy in buses, shuttles, tractors for semi-trailers, and intermediary or heavy trucks.

A wholly owned subsidiary of Hydro-Québec, TM4 was created in 1998 to market the electric propulsion technology developed by Hydro-Quebec’s research institute, IREQ. Based in Boucherville, Que., it supplies supplies motors, generators, power electronics modules and vehicle controllers.

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