The invention discloses a vehicle charging control method and device, a medium, a direct-current converter and a system, and the method comprises the steps: entering a first stage and a second stage of a charging control stage when the direct-current converter detects that communication between the direct-current converter and a vehicle control unit is lost; a charging voltage is output according to the voltage control value obtained in the charging control stage so as to charge a lithium battery of the vehicle; wherein in the first stage, voltage output is stopped, a system voltage value of the low-voltage system is determined after a first preset time period, and a voltage control value is obtained according to the system voltage value and a voltage limit value; in the second stage, every preset time interval, voltage output is stopped, the system voltage value of the low-voltage system is determined after a first preset time period, and a voltage control value is obtained according to the system voltage value, the change trend of the system voltage value and the voltage limiting value. The service life of the lithium battery can be prolonged, normal use of the vehicle function is guaranteed, the electricity shortage probability of the lithium battery is reduced, and the vehicle using experience is improved.

    本发明公开了一种车辆充电控制方法、装置、介质、直流变换器及系统,当直流变换器探测到与整车控制器之间的通讯丢失时,进入充电控制阶段的第一阶段和第二阶段;根据在充电控制阶段中获得的电压控制值输出充电电压,以为车辆的锂电池充电;其中,在第一阶段内,停止电压输出并在第一预设时间段后确定低压系统的系统电压值,根据系统电压值和电压限值获得电压控制值;在第二阶段内,每隔预设的时间间隔,停止电压输出并在第一预设时间段后确定低压系统的系统电压值,根据系统电压值、系统电压值的变化趋势和电压限值获得电压控制值。本发明能够延长锂电池使用寿命,保证车辆功能正常使用,减少锂电池的亏电概率,提升用车体验。


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    Title :

    Vehicle charging control method, device, medium, direct-current converter and system


    Additional title:

    一种车辆充电控制方法、装置、介质、直流变换器及系统


    Contributors:
    LI FENG (author) / TANG HONGBING (author)

    Publication date :

    2023-12-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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