The invention provides a fuel tank refueling control method and system.The method comprises the steps that when it is detected that a user starts a refueling switch, a CG relay is controlled to be closed, and a refueling request signal is sent to an engine controller, so that the engine controller opens a fuel tank decompression valve and decompresses a fuel tank; an oil tank pressure value inside the oil tank and an atmospheric pressure value outside the oil tank are collected in real time, and a pressure difference value between the atmospheric pressure value and the oil tank pressure value is calculated; whether the pressure difference value is larger than a preset threshold value within a preset time period or not is judged in real time through the automobile body controller; and if the vehicle body controller judges that the pressure difference value is smaller than or equal to the preset threshold value in the preset time period in real time, a pressure relief completion signal sent by the vehicle body controller is received, and an oil tank cover of the oil tank is unlocked according to the pressure relief completion signal. Steam in the high-pressure oil tank can be ensured to be in a safe range, and potential safety hazards are eliminated.

    本发明提供了一种油箱加油控制方法及系统,该方法包括:当检测到用户启用加油开关时,控制CG继电器吸合,并向发动机控制器发送加油请求信号,以使发动机控制器开启油箱泄压阀并对油箱进行泄压;实时采集油箱内部的油箱压力值以及油箱外部的大气压力值,并计算出大气压力值与油箱压力值之间的压力差值;通过车身控制器实时判断压力差值在预设时间段内是否大于预设阈值;若通过车身控制器实时判断到压力差值在预设时间段内小于等于预设阈值,则接收车身控制器发送的泄压完成信号,并根据泄压完成信号对油箱的油箱盖进行解锁。本发明能够确保高压油箱中的蒸汽处于安全的范围,消除了安全隐患。


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    Title :

    Fuel tank refueling control method and system


    Additional title:

    一种油箱加油控制方法及系统


    Contributors:
    LIU QIN (author) / YU YANYAN (author) / ZHANG XIAOBO (author) / CHENG YANHU (author)

    Publication date :

    2023-10-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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