The invention discloses a vehicle DCDC output power management method and system, and the method comprises the steps: classifying low-voltage loads based on the load types of the low-voltage loads on a vehicle; obtaining the use probability K of each type of low-voltage load under the load type and the consumed power Pi of the low-voltage load; acquiring a maximum accumulative continuous load P1 [sigma] C, acquiring converted load power utilization total power P2 [sigma], and determining rated output power Pe1 of the DCDC by adopting a first method based on the acquired maximum accumulative continuous load P1 [sigma] C; determining the rated output power Pe2 of the DCDC by adopting a second method based on the obtained converted load power utilization total power P2Sigma; and selecting one of the rated output power Pe1 and the rated output power Pe2. According to the invention, the model selection problem of the DCDC power of a pure electric or hybrid vehicle model can be solved.

    本发明公开了一种车辆DCDC输出功率管理方法及系统,该方法包括:基于车辆上的低压负载的负荷类型,将所述低压负载分类;获取每类低压负载在负荷类型下的使用概率K、低压负载的消耗功率Pi;获取最大累计连续负荷P1ΣC、获取折算负载用电总功率P2Σ,基于获取的最大累计连续负荷P1ΣC采用第一方法确定DCDC的额定输出功率Pe1;基于获取的折算负载用电总功率P2Σ采用第二方法确定DCDC的额定输出功率Pe2;选取额定输出功率Pe1、额定输出功率Pe2两者中的其一。本发明可解决纯电或混动车型的DCDC功率的选型问题。


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    Title :

    Vehicle DCDC output power management method and system


    Additional title:

    一种车辆DCDC输出功率管理方法及系统


    Contributors:
    WANG BING (author) / WANG ZIJUN (author) / XU PENGTAO (author) / CHEN KONGWU (author) / JIANG LONGFEI (author)

    Publication date :

    2023-10-13


    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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