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High-voltage hybrid

BorgWarner wins first eTurbo collaboration

20. Mai 2021, 08:41 Uhr   |  Irina Hübner

BorgWarner wins first eTurbo collaboration
© BorgWarner

BorgWarner's eTurbo for high-voltage hybrid vehicles.

BorgWarner has signed a contract with a major European manufacturer to supply its eTurbo for high-voltage hybrid cars. This project will be BorgWarner's first use of its electrically assisted turbocharger in a high-voltage hybrid vehicle.

»Our eTurbo with integrated power electronics enables electrically assisted charging and recuperation for a wide range of vehicles,« said Joe Fadool, president and general manager, BorgWarner Emissions, Thermal and Turbo Systems. »BorgWarner has a long, successful history with this manufacturer. So we're particularly pleased to be able to offer our customer improved engine efficiency and performance for the 400V hybrid application.«

The eTurbo consists of a mechanical turbocharger equipped with a high-speed electric motor coupled directly to the shaft. There is also a choice of integrated or semi-integrated power electronics. BorgWarner's solution combines the proven features of a standard turbocharger with the added benefit of electrically assisted boosting.

The eTurbo enables 200% faster response and 50% improved torque delivery, virtually eliminating turbo lag and further supporting engine downsizing. The electrified turbocharger is particularly well suited for Miller cycle engine designs, providing both fuel savings and reduced emissions without power loss.

BorgWarner's eTurbo can also be used as a generator, converting excess exhaust energy into electrical energy. This in turn can be used for additional power or battery charging, allowing the use of a smaller battery. Another advantage of the charging technology is its ability, in conjunction with exhaust aftertreatment and precise control of the combustion air ratio, to reduce emissions. BorgWarner's eTurbo can also support on-demand exhaust gas recirculation by increasing the engine's exhaust backpressure to reduce emissions.

Production of the high-voltage hybrid vehicle with BorgWarner's electrified turbocharger is expected to begin in September 2023.

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BorgWarner Turbo Systems GmbH