The present disclosure relates to a method for monitoring and alarming hydrogen leakage of a fuel-cell vehicle and a system thereof. The method comprises the steps of: acquiring the current hydrogen concentration of a fuel-cell vehicle; judging whether the current hydrogen concentration is 0, if not, acquiring the measured hydrogen concentration, the hydrogen pressure drop value and the normal pressure range generated when the current hydrogen concentration of the fuel-cell vehicle is 0; judging whether the hydrogen pressure drop value exceeds the normal pressure range, if so, determining the predicted hydrogen concentration according to the measured hydrogen concentration and the hydrogen pressure drop value; judging whether the predicted hydrogen concentration exceeds the hydrogen leakage alarm threshold, and if not, determining the hydrogen leakage and issuing an alarm. The hydrogen concentration alarm limit can be reached in advance, thereby shortening the time for monitoring and alarming hydrogen leakage.
Method For Monitoring And Alarming Hydrogen Leakage Of Fuel-Cell Vehicle And System Thereof
2022-09-15
Patent
Elektronische Ressource
Englisch
IPC: | G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES / G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / 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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