The invention discloses a new energy automobile power battery health degree detection method and device, and the method comprises the following steps: charging a power battery through a DC charging pile and a detection terminal, and enabling the remaining electric quantity of the power battery to be increased by a first preset proportion value; acquiring a real-time voltage value and a real-time current value in the charging process of the power battery through the detection terminal; and calculating a capacity retention rate and an energy retention rate of the power battery based on the real-time voltage value and the real-time current value in combination with basic hardware information of the power battery to obtain health degree information of the power battery. The detection terminal is directly connected in series between the standard charging pile interface and the vehicle charging interface, the vehicle is subjected to standard charging, parameters such as the actual chargeable capacity and the chargeable amount of the power battery of the whole vehicle under the specified detection condition are directly measured, the relevant parameters are substituted into the calculation model, and the health degree of the power battery can be rapidly detected.
本发明公开了一种新能源汽车动力电池健康度检测方法及装置,其中方法包括如下步骤:通过所述直流充电桩及所述检测终端对所述动力电池进行充电,使所述动力电池的剩余电量增加第一预设比例值;通过所述检测终端获取所述动力电池充电进程中的实时电压值和实时电流值;基于所述实时电压值和所述实时电流值,结合所述动力电池的基础硬件信息,计算所述动力电池的容量保持率和能量保持率,得到所述动力电池的健康度信息。通过在标准充电桩接口与车辆充电接口之间直接串联检测终端,对车辆进标准充电,直接测得车辆整车在规定检测条件下动力电池的实际可充容量、可充电量等参数,将相关参数代入计算模型,能够快速检测动力电池健康度。
New energy automobile power battery health degree detection method and device
一种新能源汽车动力电池健康度检测方法及装置
2024-04-05
Patent
Elektronische Ressource
Chinesisch
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
Health degree evaluation method and health degree evaluation device for power battery
Europäisches Patentamt | 2023
|New energy automobile power battery protection device
Europäisches Patentamt | 2023
|