The invention discloses a starting battery detection control method and device, and a vehicle starting method and system, a charging switch of a starting battery is connected in parallel with a one-way conduction voltage reduction branch, and the conduction direction of the voltage reduction branch is opposite to the charging direction; the vehicle starting method comprises the following steps: activating a vehicle ECU unit by using a vehicle key; controlling a charging switch of the starting battery to be switched on; when the total voltage of the starting battery exceeds the starting limit threshold value, the charging switch is controlled to be switched off; judging whether the output voltage of the starting battery is smaller than or equal to the starting limit threshold, if yes, allowing ignition to start the engine, and if not, forbidding ignition to start the engine. Compared with the prior art, the charging switch is connected with the one-way conduction voltage reduction branch in parallel, the charging switch is firstly controlled to be conducted when the vehicle is to be started, and then the charging switch is turned off when the total voltage of the starting battery exceeds the starting limit threshold value, so that the output voltage of the starting battery is lowered, and the probability of triggering ECU overvoltage protection when the vehicle is started is reduced; and the stable starting effect is achieved.

    本发明公开了一种启动电池检测控制方法、装置、车辆启动方法及系统,在启动电池的充电开关上并联单向导通的降压支路,降压支路的导通方向与充电方向相反;车辆启动方法包括:使用车钥匙激活车辆ECU单元;控制启动电池的充电开关导通;在启动电池的总电压超出启动限制阈值时,控制充电开关断开;判断启动电池输出电压是否小于等于启动限制阈值,若是则允许点火启动发动机,若否则禁止点火启动发动机。与现有技术相比,本发明在充电开关处并联单向导通的降压支路,在车辆将启动时先控制充电开关导通,再在启动电池的总电压超出启动限制阈值时关断充电开关,使得启动电池的输出电压拉低,降低车辆启动时触发ECU过压保护的概率,达到稳定启动的效果。


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    Title :

    Starting battery detection control method and device and vehicle starting method and system


    Additional title:

    启动电池检测控制方法、装置、车辆启动方法及系统


    Contributors:
    LIN TIANSHENG (author) / FENG YAOHUI (author) / QIU SUOBING (author)

    Publication date :

    2025-03-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F02N STARTING OF COMBUSTION ENGINES , Anlassen von Brennkraftmaschinen / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01R Messen elektrischer Größen , MEASURING ELECTRIC VARIABLES / 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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