A fuel cell hybrid system includes a fuel cell pack and a hybrid battery pack. The hybrid battery pack includes a high voltage battery, a low voltage battery, a bidirectional converter to perform power conversion between the high and low voltage batteries, and a battery manager. The battery manger enters a low temperature charging mode based on an internal temperature of the hybrid battery pack, and charges one of the high or low voltage batteries using the other of the high or low voltage batteries through the bidirectional converter in the low temperature charging mode. The battery manager may perform the charging operation based on a state of charge of each of the batteries. The fuel cell pack may supply power to a motor of a vehicle, and the hybrid battery pack may supply voltage to the motor and the fuel cell pack.
FUEL CELL HYBRID SYSTEM
2015-10-08
Patent
Elektronische Ressource
Englisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |