The invention discloses an engine antitheft authentication method and system. The engine antitheft authentication method comprises the following steps: a vehicle body controller learns key informationand sends out a Target ID to ask for a vehicle key; an engine control module responds to the Target ID; the vehicle body controller stores the Target ID and notifies the engine control module; the engine control module sends out authentication Challenge to the vehicle body controller; the vehicle body controller works out a first verification code according to Target ID and sends the first verification code to the engine control module; after receiving the first verification code, the engine control module judges whether the antitheft authentication is passed through calculation and verification; the engine control module sends an authentication message to the vehicle body controller; the vehicle body controller judges whether the antitheft authentication is passed according to the received authentication message; and if not, the engine control module sends out the authentication Challenge to the vehicle body controller once more. With adoption of the engine antitheft authentication method, the problem in the prior art that authentication invalidation before vehicle off line affects the off-line passing rate and efficiency of a finished automobile of an assembly shop is solved.
本发明公开了一种发动机防盗认证方法及系统,该方法包括:车身控制器学习钥匙信息,并发出请求车辆钥匙的Target ID;发动机控制模块响应Target ID;车身控制器对Target ID进行存储,并通知发动机控制模块;发动机控制模块向车身控制器发出认证Challenge;车身控制器根据Target ID计算出第一验证码,并将第一验证码发送至发动机控制模块;发动机控制模块接收到第一验证码后,通过计算校验判断此次防盗认证是否通过;发动机控制模块向车身控制器发送认证报文;车身控制器根据接收到的认证报文判断此次防盗认证是否通过;若未通过,则发动机控制模块重新向车身控制器发出认证Challenge。本发明能够解决现有技术在车辆下线前会出现认证失效,影响总装车间整车下线的通过率和效率的问题。
Engine antitheft authentication method and system
发动机防盗认证方法及系统
24.11.2020
Patent
Elektronische Ressource
Chinesisch
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