The invention discloses an automobile mileage tamper-proofing method and system. The method comprises the steps that an electronic stability program or an anti-lock braking system sends wheel speed pulse information to a combination instrument; the combination instrument calculates mileage information according to the received wheel speed pulse information; an engine management system sends backupmileage information to the combination instrument; and the combination instrument compares the mileage information calculated by the combination instrument with the backup mileage information sent bythe engine management system, takes the greater one of the mileage information calculated by the combination instrument and the backup mileage information as the current mileage information, and displays the current mileage information. According to the automobile mileage tamper-proofing method provided by the invention, a user cannot privately modify the mileage value displayed by the instrument, so that the benefit of a main engine plant or a second-hand automobile buyer can be better protected.

    本发明公开了一种汽车里程防篡改方法及系统,该方法包括:车身电子稳定系统或防抱死制动系统向组合仪表发送轮速脉冲信息;组合仪表根据接收到的轮速脉冲信息计算出里程信息;发动机管理系统向组合仪表发送备份里程信息;组合仪表将自身计算的里程信息与发动机管理系统发送的备份里程信息进行比较,取两者较大者作为当前里程信息,并对当前里程信息进行显示。根据本发明提供的汽车里程防篡改方法,使得用户无法私自修改仪表显示的里程值,从而能够更好地保护主机厂或二手车买家的利益。


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    Title :

    Automobile mileage tamper-proofing method and system


    Additional title:

    汽车里程防篡改方法及系统


    Contributors:
    LIU LIFEN (author) / ZHANG XIAOBO (author) / LIU QIN (author) / WANG AICHUN (author)

    Publication date :

    2020-04-10


    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 / G07C TIME OR ATTENDANCE REGISTERS , Zeit- oder Anwesenheitskontrollgeräte



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