Innovative hybrid-electric powertrain for road sweepers

Empa, ETH Zürich and the road sweeper manufacturer Bucher Municipal have jointly developed a pioneering hybrid-electric powertrain for road sweepers in a CTI project. The concept is based on a gas-driven engine, which provides power to the electric motors. Compared to conventional sweepers, the energy consumption has been halved and CO2 emissions reduced by more than 60 percent. Bucher Municipal is currently working on a concept study to investigate possible commercialisation of the new technologies.

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