Fuel cell engine life prediction method and device based on actual measurement correlation

• Main Authors: WU ZHIXIN, LAN HAO, CHEN GUANG, JIAO DAOKUAN, WANG RUIDI, WANG XIAOBING, HAO DONG, MA MINGHUI, MA JICHENG, ZHANG YANYI
• Format: Patent
• Language: Chinese; English
• Published: 30.08.2024
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TESTING

The invention discloses a method and a device for predicting the service life of a fuel cell engine based on actual measurement association. The method comprises the following steps: acquiring a unit cycle working condition of a to-be-predicted fuel cell engine; carrying out endurance test preparation to obtain a first steady-state characteristic test record; performing an endurance test cycle test on the to-be-predicted fuel cell engine, and recording a second steady-state characteristic test record of the to-be-predicted fuel cell engine until the test is ended; obtaining an average single cell voltage attenuation rate according to the average single cell voltage of the fuel cell corresponding to the reference current point; and calculating to obtain an average single cell voltage attenuation rate under real vehicle operation, obtaining an acceleration factor according to the average single cell voltage attenuation rate and the average single cell voltage attenuation rate, and obtaining a service life predi