Electric & hybrid buses


City buses run through urban areas where pollution and noise have the most significant impact on day to day life.

Electrification and hybridization of these vehicles is driven by:


TM4 SUMOTM direct-drive electric powertrains are the perfect match for 6-18 meter buses. These high torque permanent magnet motors are designed to interface directly with standard rear differential without the need for an intermediate gearbox.

In comparison to the competition and general advantages of vehicle electrification, using a TM4 SUMO direct-drive systems allows the additional benefits:


Read more on these advantages here


Examples of city buses powered by TM4:

«With their superior efficiency, performance, competitive price and maintenance-free lifecycle, the TM4 SUMO powertrains are enabling our customers to get a faster ROI. »

Burak Onur, Technology Manager at TEMSA Global.

School buses

School buses represent an ideal platform for electrification. Their predicable usage with planned routes in the morning and afternoon allows charging needs to be evaluated and controlled.




Class 2 to 6 vehicles

Peak power Efficiency Max torque
175-250 kW 94% (system) 1500-3000 Nm

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Class 6 to 8 vehicles

Peak power Efficiency Max torque
250 94% (system) 2700-3400 Nm

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