Method and device for processing A2L file of vehicle-mounted controller

Abstract

The invention discloses a method and device for processing an A2L file of a vehicle-mounted controller. The method comprises the steps: reading an original A2L file into an operation space of MATLAB, and storing the original A2L file as a text object; respectively extracting a variable structure body and conversion formula information of the original A2L file by applying a regular expression; exporting the extracted variable structure body and conversion formula information into an Excel file by utilizing an MATLAB script command; processing a variable structure body and conversion formula information in the Excel file, and re-reading the Excel file into the running space of the MATLAB; reading the target A2L file, and retrieving variable structure bodies and conversion formula information corresponding to the processed variable names and conversion formula names in the Excel file in the target A2L file; and updating the processed variable structure body and conversion formula information in the Excel file into the target A2L file to generate a new A2L file. According to the method, engineers can be helped to quickly position the calibration data information needing to be processed, and the processing efficiency of the A2L file is improved.

Description

technical field [0001] The invention relates to the technical field of vehicle controller development, in particular to a method and device for processing A2L files of the vehicle controller. Background technique [0002] The A2L file refers to a description file that complies with the ASAP2 (ASAM MCD-2MC) standard and is used to store controller observations and calibration information (measurement and calibration, MC). The role of A2L is to provide the necessary observation data interface information for the observation system (such as INCA), so that the observation system can interact with the observed equipment. [0003] In the process of vehicle controller software development, the calibration work refers to the work of continuously adjusting the software parameters of the controller through software simulation, or through the test and verification of parts or the whole vehicle, so that the performance of parts and the whole vehicle can reach the best state. link. Cal...

AI Technical Summary

Problems solved by technology

According to the ASAP standard, A2L files have many entries and complex attributes. Manual processing often leads to data errors, and files in ordinary text format are poorly readable and difficult to retrieve. This management method is not only inefficient, but also difficult to implement, often missing information or unable to Analyzing the potential relationship between the data often leads to errors in the calibration description file being exposed during the software integration process, which increases the development cycle and labor costs

The existing commercial software (such as Vector ASAP2 Tool-set) has a strong correlation with the configuration information of the data acquisition equipment, and cannot independently process the calibration data interface information itself, which puts forward higher requirements on the application level of engineers and cannot be well promotional use

On the other hand, commercial software uses its own interface, which cannot interact with common data formats (such as Excel and Matlab), which also brings difficulties for engineers to use

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