The invention discloses an echelon utilization power battery charging control circuit and a charging control method. The control circuit comprises an energy storage unit, a power supply unit, a delay charging unit, a detection unit and a control unit, wherein the energy storage unit is used for storing electric energy, the power supply unit supplies the electric energy to the circuit, and the delay charging unit is used for setting delay time to charge the circuit. When the current judgment unit judges that the charging current reaches the threshold current, the charging sub-circuit is controlled to be disconnected; the time from disconnection to re-conduction of the charging sub-circuit is determined according to the charging time of the charging sub-circuit to the energy storage sub-circuit, the voltage difference between the two ends of the inductor when the charging sub-circuit is conducted and the voltage difference between the two ends of the inductor when the charging sub-circuit is disconnected, so that the power battery is prevented from being damaged due to the fact that a large current peak exists at the moment when the power battery is powered on; and the service life of the power battery is prolonged.

    本发明公开了一种梯次利用动力电池充电控制电路及充电控制方法,该控制电路包括储能单元、供电单元、延时充电单元、检测单元和控制单元;所述储能单元用于储存电能,所述供电单元为电路供应电能,所述延时充电单元用于设置延时时间为电路充电。本发明中,电流判断单元判断充电电流达到阈值电流的大小时,控制充电子电路断开,并依据充电子电路对储能子电路的充电时间以及充电子电路导通时电感器两端的电压差和断开时电感器两端的电压差确定充电子电路从断开到再次导通的时间,防止动力电池在上电的瞬间存在很大的电流尖峰造成动力电池损坏,延长了动力电池的使用寿命。


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    Title :

    Echelon utilization power battery charging control circuit and charging control method


    Additional title:

    一种梯次利用动力电池充电控制电路及充电控制方法


    Contributors:
    ZAN XIANGMING (author) / GE PINGPING (author) / DA HONGFEI (author) / LIU JIE (author)

    Publication date :

    2022-01-14


    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 / 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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