The invention provides a battery temperature control method and device, vehicle-mounted terminal equipment and a vehicle, and the method comprises the steps: carrying out the first-stage cooling of a to-be-detected battery according to a first revolution ratio of a water cooling system after the to-be-detected battery is in thermal runaway; and when the real-time temperature of the to-be-tested battery after the first-stage cooling is within the thermal runaway temperature range and the temperature rising rate of the to-be-tested battery is continuously smaller than the preset rate, performing second-stage cooling and third-stage cooling on the to-be-tested battery according to a second revolution ratio and a third revolution ratio, and closing the water cooling system when the real-time temperature of the to-be-tested battery is lower than the thermal runaway initiation temperature after the third-stage cooling. The first revolution ratio, the second revolution ratio and the third revolution ratio are different revolution ratios. In the cooling process of the to-be-tested battery, multiple cooling stage control and multiple revolution ratio mode switching control can be carried out, the time for starting water cooling of the to-be-tested battery is prolonged, and the temperature is controlled to be balanced, so that the to-be-tested battery cannot be ignited and exploded within the specified time.
本申请提供一种电池温度控制方法及装置、车载终端设备及车辆,该方法在待测电池出现热失控后,按照水冷系统的第一转数比对待测电池进行第一阶段降温;以及在第一阶段降温后待测电池的实时温度位于热失控温度范围内,且待测电池的温度上升速率持续小于预设速率时,分别按照第二转数比、第三转数比对待测电池进行第二阶段降温和第三阶段降温;在第三阶段降温后待测电池的实时温度小于热失控引发温度时,关闭水冷系统。第一转数比、第二转数比和第三转数比为不同的转数比。本申请在待测电池降温过程中可以进行多个降温阶段控制和多种转数比模式切换控制,延长开启待测电池水冷时间,控制温度均衡,以使待测电池在规定时间内不会出现起火爆炸。
Battery temperature control method and device, vehicle-mounted terminal equipment and vehicle
一种电池温度控制方法及装置、车载终端设备及车辆
09.07.2024
Patent
Elektronische Ressource
Chinesisch
IPC: | 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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