In a method for determining a portion of a defective battery cell in a group of battery cells connected in parallel in a battery, a voltage state of a terminal voltage of the group is determined under ambient conditions with respect to a charging process and/or relaxation of the battery, and calculating the deviation of the determined voltage state of the terminal voltage from the voltage state of the terminal voltage from the previous charging process and/or the previous relaxation under the same environmental conditions, and determining the share of the defective battery cells in the group from the calculated deviation. In a method for determining a portion of a defective battery cell in a group of battery cells connected in parallel in a battery, a voltage state of a terminal voltage of the group is determined under ambient conditions with respect to a charging process and/or relaxation of the battery, and calculating a deviation of the determined voltage state of the terminal voltage from the voltage state of the terminal voltage of at least one further group of the batteries and/or from an average value of the voltage states of the respective terminal voltages of at least two groups of the batteries, and determining a portion of the defective battery cells in the group from the calculated deviation.
一种用于确定并联在电池中的电池单池的组中有缺陷电池单池的份额的方法,在环境条件下关于充电过程和/或电池的弛豫确定组的端电压的电压状态,并计算端电压的确定的电压状态与在相同环境条件下来自先前的充电过程和/或先前的弛豫的端电压的电压状态的偏差,由计算出的偏差确定组中缺陷电池单池的份额。一种用于确定并联在电池中的电池单池的组中有缺陷电池单池的份额的方法,在环境条件下关于充电过程和/或电池的弛豫确定组的端电压的电压状态,并计算端电压的确定的电压状态与电池的至少一个另外的组的端电压的电压状态和/或与电池的至少两个组的相应端电压的电压状态的平均值的偏差,由计算出的偏差确定缺陷电池单池在组中的份额。
Method for determining portion of defective battery cells, battery controller, computer program, computer-readable storage medium, battery and motor vehicle
用于求取缺陷电池单池份额的方法、电池控制器、计算机程序、计算机可读存储介质、电池和机动车
2024-04-30
Patent
Electronic Resource
Chinese
IPC: | G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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 |
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