The invention relates to a vehicle battery system heating method and device, a medium and a vehicle. The vehicle battery system heating method comprises the steps that in response to the situation that the environment temperature is lower than a battery heating temperature threshold value, the required power when a vehicle runs and the heating power which can be provided by the vehicle at the environment temperature for a battery are obtained; based on the heating power, determining the heating time required for heating the battery from the environment temperature to the target heating cutoff temperature; based on the ratio of the total residual discharge capacity to the rated capacity of the battery system, the target charge state of the battery when the vehicle starts to heat the battery is determined, and the total residual discharge capacity is the product of the sum of the required power and the heating power and the heating time; in response to the state of charge of the battery reaching the target state of charge, the battery is heated based on the heating power. According to the technical scheme, the low-temperature endurance mileage of the pure electric vehicle can be improved, and the vehicle using experience of a user is optimized.
本公开涉及一种车辆电池系统加热方法、装置、介质及车辆。车辆电池系统加热方法包括:响应于环境温度低于电池加热温度阈值,获取车辆行驶时的需求功率以及在环境温度下车辆所能提供的对电池的加热功率;基于加热功率,确定电池从环境温度加热至目标加热截止温度所需的加热时间;基于剩余总放电量与电池系统的额定电量的比值,确定车辆开启对电池加热时电池的目标荷电状态,其中,剩余总放电量为需求功率和加热功率相加后与加热时间的乘积;响应于电池的荷电状态达到目标荷电状态,基于加热功率对电池加热。本公开技术方案能够提高纯电动汽车低温续航里程,优化用户用车体验。
Vehicle battery system heating method and device, medium and vehicle
车辆电池系统加热方法、装置、介质及车辆
2024-03-29
Patent
Electronic Resource
Chinese
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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