Unified diagnostic software design method for DCT transmission

The invention discloses a unified diagnosis software design method for a DCT transmission. The method comprises the following steps: 1) establishing a specific total database and a sub-database according to a project; 2) obtaining CAN information streams related to the CAN communication stack, and storing the CAN information streams in different information registers; 3) based on the UDS protocol, judging whether the information flow stored in the information register is correct or not; 4) performing relevant information retrieval in a database according to the content in the information register; the freezing frame data is specified according to a data object of a corresponding database, (6) detecting the working condition of the whole vehicle in real time and transmitting a monitoring judgment result to a bottom layer through an interface, and (7) setting a data register according to a diagnosis processing result and an information retrieval result. 一种用于DCT变速器的统一诊断软件设计方法，步骤如下：1）根据项目建立特定的总数据库和子数据库；2）获取CAN通信栈