| Fuzzy mathematics is an important branch of mathematics and it's theory can solve many problems in practical application.The fuzzy probability is the combination of the fuzzy mathematics and probability theory and it is also an important method of mathematics evaluation.An ideal fuzzy quasi-multiplication operator was given to further analyze and study the fuzzy integral,and the better results were obtained.The fuzzy probability integral theories and methods were applied to the electric vehicle battery system to evaluate the health status of battery during charging and discharging process,more satisfactory evaluation effects were obtained.The fuzzy probability integral was redefined,the fuzzy quasi-multiplication operator was given,and a number of linear and nonlinear properties of the probability integral were obtained.Meanwhile,it proved that the measurement is zero addable when the measurable functions were almost equal.As a research object,the electric vehicle battery system was used as research object.Firstly,evaluating the health status of each monomer voltage by the fuzzy probability integral method;secondly,evaluating the overall health of the battery by fuzzy relational synthesis.Finally,on the basis of the expert system,the effective health evaluation of battery system was completed.In this paper,some meaningful conclusions were obtained in the study of fuzzy probability measurement and integral,which provided new ideas and methods for the health evaluation of electric car battery system and provided theoretical basis for the design of pure electric car battery. |
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