PROBLEM TO BE SOLVED: To provide a two-power source load drive fuel cell system capable of significantly suppressing instability in a direct connection state between a fuel cell and a power storage device, and reducing loss of a converter following to switching operation, and to provide a fuel cell vehicle.SOLUTION: When an average target FC voltage Vfcavetar is lower than an average BAT voltage Vbatave, a FCVCU 21 is made in a boosting state and a BATVCU 22 is made in a direct connection state, namely a control state becomes a one side boosting control state. In periods when a target FC voltage Vfctar exceeds a BAT voltage Vbat in a transient state (time points t2-t3, time points t8-t9, and so on) in the one side boosting control state, the direct connection state of the FCVCU 21 is allowed and the direct connection state of the BATVCU 22 is maintained.
【課題】燃料電池と蓄電装置との直結状態における不安定性を著しく抑制すると共に、スイッチング動作に伴うコンバータの損失を低減する2電源負荷駆動燃料電池システム及び燃料電池自動車を提供する。【解決手段】平均目標FC電圧Vfcavetarが平均BAT電圧Vbataveより低い場合には、FCVCU21を昇圧状態にすると共にBATVCU22を直結状態にする片側昇圧制御状態とし、該片側昇圧制御状態中に、目標FC電圧VfctarがBAT電圧Vbatを過渡的に上回る期間(時点t2〜t3、時点t8〜t9等)では、FCVCU21の直結状態を許容し、BATVCU22の直結状態を維持する。【選択図】図7
TWO-POWER SOURCE LOAD DRIVE FUEL CELL SYSTEM AND FUEL CELL VEHICLE
2電源負荷駆動燃料電池システム及び燃料電池自動車
2016-01-18
Patent
Electronic Resource
Japanese
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 |