Cooling Control of Automotive Battery Pack System Based on Fuzzy Algorithm
The heating and heat transfer mechanism of lithium-ion batteries was analyzed in this paper,and the mathematical model on the temperature of power battery packs was built.The battery model was selected A123-26650 LiFePO4,and the tempera-ture model with 8 individual cells in any row of the power battery pack was established through preprocessing.Through the grid parti-tioning,the preprocessing mathematical model was imported into ANSYS software to simulate the battery heating under actual condi-tions,and compared with the relevant equations of Zuskausks experiment,it verified the reliability of the power battery CFD model established in the paper.Under the condition of constant coolant flow rate,the mathematical model of battery temperature and CFD model of battery temperature were compared to verify that the mathematical temperature model of the power battery can serve as a simulation object for the controller.An adaptive fuzzy PID controller was designed to verify the experiments through MATLAB/Sim-ulink simulation the results show that the controller can effectively control the battery temperature to the expected value,which has a certain practical application value.
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