Hybrid electric propulsion system and method

B - Operations – Transporting – 60 – L

Patent

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Details

B60L 11/16 (2006.01) B60L 11/12 (2006.01) B60L 11/18 (2006.01)

Patent

CA 2570662

A hybrid propulsion system comprising a first energy storage unit operable to supply power to a traction drive motor. A second energy storage unit is coupled with the first energy storage unit to provide additional power on demand do the traction drive motor. An auxiliary power unit (APU) is used to charge the first battery to maintain a desired voltage across the first energy storage unit.

Système de propulsion hybride comprenant une première unité d'accumulation d'énergie servant à alimenter en courant un moteur d'entraînement à traction. Une deuxième unité d'accumulation d'énergie est accouplée à la première unité afin de produire du courant supplémentaire à la demande au moteur d'entraînement à traction. Une unité de puissance auxiliaire (APU) est utilisée afin de charger la première batterie, de façon à maintenir une tension désirée dans cette première unité d'accumulation d'énergie.

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