The invention discloses a charging management method and system for a vehicle-mounted low-voltage storage battery. The method comprises the steps that when voltage transformation control needs to be conducted on vehicle voltage, vehicle speed planning information of a current control period is obtained, and a target gear sequence of the current control period is calculated based on the vehicle speed planning information of the current control period; then, vehicle parameter information is obtained, and an engine rotating speed prediction sequence of the current control period is calculated based on the vehicle parameter information and the target gear sequence of the current control period; and finally, the target voltage optimization sequence of the current control period is acquired, and the target optimization voltage in the target voltage optimization sequence of the current control period is used as a target voltage decision value of the current control period. Herein, the characteristic that the storage battery has a certain depth of chargeable and dischargeable capacity is fully utilized, so that charging and discharging management can be carried out on the storage battery in advance by combining traffic and road conditions, the energy use efficiency is improved, the storage battery is prevented from being over-discharged, and the service life of the storage battery is prolonged.

    本发明公开了一种用于车载低压蓄电池的充电管理方法及系统,当需要对车辆电压进行变压控制时,首先,获取当前控制周期的车速规划信息,基于当前控制周期的车速规划信息计算当前控制周期的目标档位序列;然后,获取车辆参数信息,基于车辆参数信息及当前控制周期的目标档位序列计算当前控制周期的发动机转速预测序列;最终,得到当前控制周期的目标电压优化序列,将当前控制周期的目标电压优化序列中的目标优化电压作为当前控制周期的目标电压决策值。本发明充分利用了蓄电池具备一定深度可充放电能力的特点,能够结合交通及道路状况提前对蓄电池进行充放电管理,提高了能量使用效率,避免了蓄电池电量过放,延长了蓄电池使用寿命。


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    Title :

    Charging management method and system for vehicle-mounted low-voltage storage battery


    Additional title:

    一种用于车载低压蓄电池的充电管理方法及系统


    Contributors:
    XI LIHE (author)

    Publication date :

    2021-09-28


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / 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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