The invention relates to the technical field of new energy automobile electric control, in particular to a vehicle control unit EEPROM data protection method which comprises a trigger type EEPROM data storage function and a data mirror image backup function, and the trigger type EEPROM data storage function comprises the steps that S1, a vehicle is powered on, VCU bottom layer software searches for a memory address where a variable in an EEPROM chip is located, and the data mirror image backup function is executed; updating a new numerical value transmitted by the VCU application layer to the memory address to complete data updating of the EEPROM; s2, after the whole vehicle is powered off, when it is detected that a low-voltage storage battery is powered off, the EEPROM keeps the last stored data, and the data mirror image backup function comprises the steps that S1, the whole vehicle is powered on, the VCU periodically sends important EEPROM data of the whole vehicle to the TBOX, and the TBOX transmits the important EEPROM data to an enterprise management platform for storage through a TCP/IP protocol; s2, VCU application layer software can detect the fault, and requests the vehicle-mounted networking terminal TBOX to return data transmitted to the EEPROM at the last moment before flashing to the VCU, so that the problems that the EEPROM data in the VCU is abnormal in storage, is abnormally cleared or tampered and the like at the present stage are solved.

    本发明涉及新能源汽车电控技术领域,具体涉及一种整车控制器EEPROM数据保护方法,包括触发式EEPROM数据存储功能以及数据镜像备份功能,触发式EEPROM数据存储功能包括:S1:整车上电,VCU底层软件查找EEPROM芯片中变量所在的内存地址,将VCU应用层传递过来的新的数值更新至内存地址上,完成EEPROM的数据更新;S2:整车下电后,当检测到低压蓄电池断电时,EEPROM保持上一次的储存数据,数据镜像备份功能包括:S1:整车上电,VCU周期性的将整车重要的EEPROM数据发送给TBOX,TBOX通过TCP/IP协议将其传输给企业管理平台进行储存;S2:VCU应用层软件会检测到该故障,请求车载联网终端TBOX将刷写前的最后时刻传输给EEPROM的数据回传给VCU解决了现阶段VCU中的的EEPROM数据储存异常,被异常清除或篡改等问题。


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    Titel :

    Vehicle control unit EEPROM data protection method


    Weitere Titelangaben:

    一种整车控制器EEPROM数据保护方法


    Beteiligte:
    JIANG WENJUAN (Autor:in) / ZHANG YA'NAN (Autor:in) / ZHANG LONGCONG (Autor:in) / XU LICHENG (Autor:in) / LI WEI (Autor:in) / WANG YIFAN (Autor:in) / HAN QING (Autor:in)

    Erscheinungsdatum :

    27.10.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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