To make it possible to more accurately determine a state such as deterioration of a fuel cell even during running of a vehicle.SOLUTION: According to one viewpoint of the present disclosure, a fuel cell vehicle state determination device includes one or more processors and one or more memories communicably connected to the one or more processors. The processors measure amplitudes of a current and a voltage obtained from a fuel cell only for a predetermined period of time, and detect if there is a specific frequency component corresponding to mass transport resistance of the fuel cell. When the specific frequency component is detected, the processors extract low frequency components for the respective current and voltage obtained from the fuel cell, and on the basis of, the extracted low frequency current signal and low frequency voltage signal, calculates an AC impedance corresponding to the mass transport resistance of the fuel cell, and determines a state of the fuel cell on the basis of, the calculated AC impedance.SELECTED DRAWING: Figure 1
【課題】車両の走行中においても燃料電池の劣化などの状態をより正確に判定する。【解決手段】本開示のある観点によれば、一つ又は複数のプロセッサと、前記一つ又は複数のプロセッサに通信可能に接続される一つ又は複数のメモリと、を備えた燃料電池車の状態判定装置であって、前記プロセッサは、燃料電池から得られる電流及び電圧の振幅を所定時間だけ計測して、前記燃料電池の物質輸送抵抗に対応する特定周波数成分の有無を検出し、前記特定周波数成分が検出された場合に、前記燃料電池から得られた前記電流及び前記電圧に対してそれぞれ低周波成分を抽出し、前記抽出された低周波電流信号および低周波電圧信号に基づいて、前記燃料電池の物質輸送抵抗に対応する交流インピーダンスを算出し、前記算出された交流インピーダンスに基づいて、前記燃料電池の状態判定を行う。【選択図】 図1
FUEL CELL VEHICLE STATE DETERMINATION DEVICE, FUEL CELL VEHICLE, COMPUTER PROGRAM, AND RECORDING MEDIUM
燃料電池車の状態判定装置、燃料電池車、コンピュータプログラム及び記録媒体
22.03.2023
Patent
Elektronische Ressource
Japanisch
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 |
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