The invention is applicable to the technical field of battery thermal management, and provides a battery thermal management method, which comprises the following steps: acquiring the temperature of a battery pack, and acquiring the charge state value of the battery pack; according to the temperature of the battery pack and the charge state value, matching a target heat management mode of the battery pack from multiple target heat management modes, wherein the multiple heat management modes comprise refrigeration modes of multiple gears, and the refrigeration modes of the multiple gears have different target cooling liquid temperatures; generating a heat management request according to the target heat management mode; and sending a heat management request to a vehicle control unit. The invention also provides a battery management system. Fine temperature control can be achieved, frequent starting and stopping of a compressor of the whole vehicle are avoided, and energy consumption of the whole vehicle is reduced.
本发明适用于电池热管理技术领域,提出一种电池热管理方法,包括:获取电池包的温度,并获取所述电池包的荷电状态值;依据所述电池包的温度与所述荷电状态值,从多个目标热管理模式中匹配出电池包的目标热管理模式,多个所述热管理模式包括多个档位的制冷模式,且多个档位的制冷模式具有不同的目标冷却液温度;依据所述目标热管理模式生成热管理请求;将所述热管理请求发送至整车控制器。本发明同时提出一种电池管理系统。本发明能够实现精细化控温,避免整车压缩机的频繁启停,减小了整车能耗。
Battery thermal management method and battery management system
电池热管理方法及电池管理系统
16.11.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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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