The application of fuzzy probability in assessment of pure electric vehicle battery system

摘要

With the purpose of assessing the health status of battery in the process of charging and discharging. A lithium iron phosphate battery as example, through each monomer in weighing the battery voltage to the influence of the overall battery system to make this clear. First using the method of the fuzzy probability to evaluate each monomer voltage state of health; Then the application of the fuzzy relationship synthetic to evaluate the lithium iron phosphate batteries overall health status; At last, complete the assessment to the health status of battery system effectively, combining with the variation coefficient method to assign weights on the basis of expert scoring evaluation.