The invention relates to a new energy automobile technology, in particular to a segmented equalization fuzzy control method based on voltage SOC and temperature, which comprises the following steps: acquiring voltage values and SOC values of all single batteries in a battery pack; determining a battery to be equalized according to the maximum value and the minimum value of the current voltage or SOC of all the single batteries in the battery pack; calculating an average voltage difference value or an average SOC difference value between the to-be-equalized battery and all single batteries in the battery pack and a voltage difference value or an SOC difference value of the to-be-equalized battery; the voltage difference value or SOC difference value of the two single batteries to be balanced, the average value of the battery pack, the voltage average difference value or SOC average difference value of the two batteries to be balanced and the temperature are used as three input variables, defuzzification is carried out to obtain a balanced current, the output current is compared with the balanced current to obtain a control signal, and the control signal is used for controlling the battery pack to be balanced. And controlling the battery pack to be balanced and updating the voltage values or SOC values of the balanced single batteries. The method has the balancing effects of rapidness, high efficiency and low energy consumption.
本发明涉及新能源汽车技术,具体涉及一种基于电压SOC和温度的分段均衡模糊控制方法,包括获取电池组内所有单体电池的电压值和SOC值;根据电池组内所有单体电池当前电压或SOC的最大值和最小值确定待均衡电池;计算待均衡电池与电池组内所有的单体电池的平均电压差异值或平均SOC差异值以及待均衡电池的电压差值或SOC差值;以待均衡的两个单体电池的电压差值或SOC差值、电池组平均值与待均衡的两个电池的电压平均差值或SOC平均差值和温度为三个输入变量,去模糊化得到均衡电流,将输出电流和均衡电流进行比较,得到控制信号,控制电池组均衡并更新均衡后单体电池的电压值或SOC值。该方法具有快速、高效、低能耗的均衡效果。
Segmented equilibrium fuzzy control method based on voltage SOC and temperature
一种基于电压SOC和温度的分段均衡模糊控制方法
2023-03-14
Patent
Elektronische Ressource
Chinesisch
IPC: | 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 / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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