Portal de Periódicos da CAPES

The consideration of energy storage device for hybrid vehicle

2005; Volume: 2005; Issue: 219 Linguagem: Inglês

10.7209/tanso.2005.249

1884-5495

Tetsuhiro Ishikawa,

Fuel Cells and Related Materials

The number of Hybrid Vehicles, like ‘Prius, ’ has been growing in the market worldwide in order to help decrease CO2 emissions. And Toyota Motor Corporation began leasing a new generation fuel cell vehicle the FCHV (Fuel Cell Hybrid Vehicle) in December 2002. That vehicle includes a new variable voltage power electronics system and uses the Nickel Metal Hydride (Ni-MH) battery system from the Prius hybrid gasoline electric vehicle. This paper describes on-going efforts to model optimum secondary storage systems for future vehicles. Efficiency modelling is presented for the base Ni-MH storage system, an ultra capacitor system and a Lithium ion (Li-ion) battery system. The Li-ion system in combination with a new high efficiency converter shows a 4% improvement in fuel economy relative to the base system.