The embodiment of the invention discloses an electric vehicle charging control method and an electric vehicle. The electric vehicle charging control method comprises the steps that a charging current model, a battery temperature change speed estimation model, a temperature estimation model and other models are arranged respectively. The charging current model determines the charging current, the battery temperature change speed estimation model determines the battery temperature change estimation rate, the temperature estimation model estimates the battery temperature, the charging and temperature management model determines the battery temperature regulation rate, and the battery temperature regulation model determines the power of a temperature change device according to the battery temperature regulation rate. And the charging and temperature management model determines the actually distributed current of the variable-temperature device. The battery temperature is controlled within the normal temperature range as far as possible. Therefore, the temperature fluctuation of the battery is reduced, and a high charging speed is maintained. And under the condition that the charging pile is not enough to supply the charging current and the current of the variable-temperature device at the same time, the supply of the charging current is preferably met, and the charging speed is further ensured.
本发明实施例公开了一种电动汽车充电控制方法和电动汽车。电动汽车充电控制方法包括,分别设置充电电流模型、电池变温速度估算模型和温度估算模型等模型。充电电流模型确定充电电流,电池变温速度估算模型确定电池变温估算速率,温度估算模型电池预估温度,充电和温度管理模型确定电池温度调节速率,电池温度调节模型根据电池温度调节速率确定变温器件功率。充电和温度管理模型确定变温器件实际分得的电流。本发明实施例将电池温度尽可能控制在常温区间内。从而降低电池的温度波动,保持较高的充电速度。在充电桩不足以同时供应充电电流和变温器件电流的情况下,优先满足所述充电电流的供应,进一步确保充电速度。
Electric vehicle charging control method and electric vehicle
一种电动汽车充电控制方法和电动汽车
2023-06-23
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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