The invention discloses an energy management method and device for a hybrid electric vehicle, and the energy management method comprises the steps: monitoring the real-time voltage of a low-voltage battery when a low-voltage circuit of the vehicle is powered on, but a high-voltage circuit is not powered on; judging the voltage grade of the real-time voltage; and after the high-voltage circuit is electrified, the DC-to-DC module is controlled to charge the low-voltage battery at the corresponding level according to the voltage level. When the low-voltage circuit is powered on but the high-voltage circuit is not powered on, the low-voltage battery is charged adaptively based on the monitored voltage of the low-voltage battery, overcharge and undercharge of the battery are prevented, and the service life of the battery is prolonged.

    本申请公开了一种混动汽车的能量管理方法及装置,能量管理方法包括:当车辆的低压电路上电,但高压电路未上电时,监测低压电池的实时电压;判断实时电压的电压等级;在高压电路上电后,依据电压等级控制直流转直流模块对低压电池进行相应等级的充电。本申请在低压电路上电但高压电路未上电时,基于监测的低压电池电压自适应对低压电池进行充电,防止电池过充及欠充,提升电池寿命。


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    Title :

    Energy management method and device for hybrid electric vehicle


    Additional title:

    一种混动汽车的能量管理方法及装置


    Contributors:
    LIU WENBIN (author) / ZHANG SHILU (author) / YE GUANGDAO (author) / ZHANG JIANWEI (author) / WANG SHUAI (author)

    Publication date :

    2024-02-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung




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