ASAM CDF is used in parallel to ASAM MDF, which stores measured values. ASAM CDF is a complementary standard to ASAM MCD-2 MC and ASAM MDX, which describe the properties of the parameters. The format allows easy import and export, comparison and merge of data from various sources. The file format is typically used in measurement & calibration tools (MC-tools) and by calibration data management tools (CDM tools). Values are stored in their physical format together with a unit, which allows the CDF file to be directly read and understood by engineers. The standard supports typical calibration process steps from their default state to production-readiness. The description contains quality and process-related meta information for each parameter value. Specifically, ASAM CDF allows the storing of scalar values, strings, arrays, curves, maps, structures and arrays of supported data types. Engineers and their management need all of this information and additional quality information about parameters to be able to decide on further development steps.ĪSAM CDF provides a file format that defines and stores this information in a machine-readable format. Variations in the hardware configuration of the controlled system may require variants of the parameter values. The values of parameters are typically determined through an iterative calibration process.ĮCU parameter values are developed over time from different tests, for different software versions of the ECU and for different hardware versions of the controlled system. The ECU parameter values adapt the control algorithms in automotive ECUs to achieve required or optimal control results. ASAM CDF defines the data description format for storing the ECU parameter values and the associated meta data.
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