The invention provides an automobile lithium battery management system. The automobile lithium battery management system comprises a master control system and a plurality of slave control systems, the master control system is connected with the plurality of slave control systems, and each slave control system comprises a battery sampling unit and an EIS excitation signal generator and is used for controlling all sampling units in a battery pack to work, providing an EIS excitation signal and uploading collected data to the master control system; the battery sampling unit comprises battery cell voltage sampling, battery cell temperature sampling and EIS data acquisition, and is used for acquiring parameters of a single battery; according to the lithium battery management system of the electric vehicle, battery electrochemical impedance detection is added on the original basis, monitoring of the electrochemical process in the battery is obtained through data obtained through battery impedance detection, and simultaneous monitoring of battery output characteristics and battery internal electrochemical characteristics is achieved; according to the system, the evaluation performance and management efficiency of the battery management system on the battery state are effectively improved.
本发明提供了一种汽车锂电池管理系统,包括包括主控系统和多个从控系统;所述主控系统与多个所述从控系统连接,所述从控系统包括电池采样单元和EIS激励信号产生,用于控制电池组内所有采样单元进行工作,提供EIS激励信号,并将采集数据上传至主控;所述电池采样单元包括电芯电压的采样、电芯温度的采样和EIS数据的采集,用于采集单节电池参数;电动汽车锂电池管理系统在原有的基础上增加了电池电化学阻抗检测,通过电池阻抗检测所得数据获取电池内部电化学过程的监测,实现电池输出特性与电池内部电化学特性的同时监测;该系统有效的提升了电池管理系统对电池状态的评估性能与管理效率。
Automobile lithium battery management system
一种汽车锂电池管理系统
2024-05-10
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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