The invention discloses a vehicle software function safety parameter calibration method and a function safety calibration tool. The calibration method comprises the following steps: determining a safety target; determining technical design characteristics required for realizing the security target; determining technical security demand items meeting the technical design characteristics, and distributing the technical security demand items to software and hardware to correspondingly determine hardware security demands and software security demands; counting parameter types, numerical ranges and data types of hardware security requirements and software security requirements; according to software and hardware security requirements, a function security parameter result is calibrated, and the parameter result comprises a parameter name and a parameter value which can be identified by A2L; converting the function safety parameter result into an A2L format; generating a DCM format file from the A2L format data; the file in the DCM format and a hex file of the function calibration software are integrated and flashed to the controller, and a program which can be executed by the controller is obtained. The functional safety parameters can be independently calibrated, the vehicle development efficiency can be improved, and the development cost can be reduced.
本发明公开了一种车辆软件功能安全参数标定方法及功能安全标定工具,标定方法包括确定安全目标;确定实现安全目标所需的技术设计特征;确定满足技术设计特征的技术安全需求项,并将其分配给软、硬件对应确定硬件安全需求和软件安全需求;统计硬件安全需求和软件安全需求参数类型、数值范围及其数据类型;根据软、硬件安全需求,标定功能安全参数结果,参数结果包括能够被A2L识别的参数名称和参数数值;将功能安全参数结果转换为A2L格式;将A2L格式数据生成DCM格式文件;将DCM格式的文件与功能标定软件的hex文件集成并刷写到控制器,得到控制器可执行的程序。本发明能够对功能安全参数独立标定,可提高车辆开发效率及降低开发成本。
Vehicle software function safety parameter calibration method and function safety calibration tool
一种车辆软件功能安全参数标定方法及功能安全标定工具
2023-04-18
Patent
Electronic Resource
Chinese
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