Vehicle power trains can be divided into three categories. The first one is the conventional power train, including the micro hybrid, which has entirely combustion-engined drive of the wheels. The second one is the electric power train with entirely electromotive drive of the wheels including the serial hybrid. The last category is the hybrid power train where the wheels are driven combustion-engined as well as electromotive. The battery electric vehicle belongs to the second class of power trains with exclusively electromotive drive of the wheels. In the near future the battery seems to be the only reversible energy storage system being able to allow sufficient ranges for electric vehicles for acceptable costs. Alternative energy storages for electric energy such as capacitors or flywheels have their advantages in the power density. This makes them useful for hybrid applications but not for pure electric vehicles. A further possibility to increase the vehicle's range is the range extender as internal combustion engine or the fuel cell. The serial hybrid does also belong to the electric power train since it has solely electromotive drive of the wheels with an additional range extender. Nevertheless it makes sense to execute a mechanical connection between the wheels and the range extender, if executed as a combustion engine, which leads to a hybrid power train again. If executed as a fuel cell the vehicle has the same design options as the battery electric vehicle. In addition to this a battery is still needed in fuel cell vehicles to compensate power peaks and for regenerative braking.
Electric power train configurations and their energy storage systems
2010
7 Seiten, 6 Bilder, 1 Tabelle, 15 Quellen
(nicht paginiert)
Conference paper
Storage medium
English
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