The invention relates to the technical field of hybrid electric vehicles, and discloses a hybrid electric vehicle battery charge state correction method and device, a hybrid electric vehicle and a medium. By calculating a battery micro-dynamic discharge power boundary, a battery management system is controlled to switch the current battery discharge power boundary into the battery micro-dynamic discharge power boundary; the power consumption of a high-voltage loop of the battery thermal management system is changed into a difference value between the micro-dynamic discharge power boundary of the battery and the power consumption of the current DC-to-DC end, so that the battery of the hybrid vehicle meets a steady-state discharge condition, and the charge state of the battery can be corrected; the battery output performance, the non-driving power consumption and the energy matching management control are controlled through linkage of the battery management system and the thermal management system, a comfortable steady-state discharge scene is actively manufactured for the battery, the environmental condition for correcting the SOC of the battery can be efficiently achieved, then the precision of the SOC of the battery is improved, and the use performance of the battery and the stable operation of a vehicle are guaranteed.

    本发明涉及混合动力汽车技术领域,公开了混动车辆电池荷电状态修正方法、装置、混动车辆及介质,本发明通过计算电池微动态放电功率边界,控制电池管理系统将当前电池放电功率边界切换为电池微动态放电功率边界,并将电池热管理系统高压回路功耗更改为电池微动态放电功率边界与当前直流转直流端的功耗的差值,使得混动车辆的电池满足稳态放电条件,即可实现对电池荷电状态修正,通过联动电池管理系统和热管理系统控制电池输出性能、非驱动功耗和能量匹配管理控制,主动为电池制造舒适的稳态放电场景,可以高效达到修正电池SOC的环境条件,继而提高电池SOC的精度,保障电池的使用性能和车辆的稳定运行。


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    Title :

    Hybrid vehicle battery state-of-charge correction method and device, hybrid vehicle and medium


    Additional title:

    混动车辆电池荷电状态修正方法、装置、混动车辆及介质


    Contributors:
    XIE SONGLIN (author) / MA WEI (author) / HU XIANLI (author) / SU XIAODONG (author) / DUAN MINGHAO (author)

    Publication date :

    2024-04-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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