Patent ID: 8694477

Claim:
A method for storing, in a rewritable memory of an automobile electronic control unit, calibration data functionally equivalent to a set of various models (M 1 -M 5 ) of complete calibration data, this method comprising operations consisting in recording in the rewritable memory a set (CALIBAS) of common calibration data (COM 1 -COM 4 ), consisting of the calibration data common to the various models (M 1 -M 5 ) of complete data, and a set of versions (SP 1 -SP 5 ) of specific calibration data, each version (SP 1 -SP 5 ) of specific data consisting of a subset of a corresponding model (M 1 -M 5 ) of complete data and being disjoint from the set (CALIBAS) of common data, said method comprising: identifying, in the set of versions (SP 1 -SP 5 ) of specific data, at least one standard version (T 1 ,T 2 ) containing specific data that are also contained in at least one other version (SF 2 , SP 4 , SF 5 ) of the set, said at least one other version is thus identified as constituting a variant (V 11 ; V 21 , V 22 ) of this standard version, deleting, from each variant (V 11 ; V 21 , V 22 ), at least one sequence of data containing specific data already contained in the corresponding standard version (T 1 ; T 2 ), and retaining a location trace ({ADRD, ADRF} ijk ) for each sequence of deleted data, and recording in the rewritable memory, in addition to the common calibration data (COM 1 -COM 4 ) and in the guise of a set of versions (SP 1 -SP 5 ) of specific data, a summary file (RCP_SP, RCP_SP′) of the specific calibration data containing at least each standard version (T 1 ; T 2 ), each corresponding variant (V 11 ; V 21 , V 22 ), and a header (ETT) containing references ({LBL} ijk ) of the various models (M 1 -M 5 ) of complete calibration data and location data ({ADRD, ADRF} ijk ) correlated with said references ({LBL.} ijk ) and locating, in the summary file (RCP_SP, RCP_SP′), each standard version (T 1 ; T 2 ), each variant (V 11 ; V 21 , V 22 ), and each sequence of deleted data.