Abstract: A method for controlling a level of screwing quality of a screwdriver relative to a predetermined screwing objective. The method includes: obtaining, at a predetermined angular frequency, a series of doublets representative of a rise in screwing torque for at least one screw, constituting a first table of values, each doublet including an angle value and a torque value; determining, from the first table, a second table of values presenting the torque as a function of the angle and being representative of the true characteristic of the at least one screw; determining a third table of values, presenting the torque as a function of the angle and being representative of disturbances induced by the screwdriver during the rise in torque, from the first and second tables; analysis of the third table, delivering information representative of a dispersion and/or a deviation relative to the screwing objective, resulting from the screwdriver-induced disturbances.

Abstract: A method for controlling a level of quality of screwdriving by a screwdriver relative to a predetermined screwdriving objective. Such a method takes account of a series of data that are representative of the rise in torque of at least two screwdrivings of screws at a predetermined angular frequency and includes: obtaining a sub-series of data for each of the screwdriving operations, corresponding to a sub-series of measurements delivering the sub-series of data; optimized aggregation of the sub-series, to form the series of data, including eliminating data corresponding to a number of measurements that is determined according to a criterion of optimization of periodicity; and analyzing the series of data, delivering information representative of a dispersion and/or a deviation relative to the screwdriving objective, resulting from disturbances induced by the screwdriver.

Abstract: A method for controlling a level of screwing quality of a screwdriver relative to a predetermined screwing objective. The method includes: obtaining, at a predetermined angular frequency, a series of doublets representative of a rise in screwing torque for at least one screw, constituting a first table of values, each doublet including an angle value and a torque value; determining, from the first table, a second table of values presenting the torque as a function of the angle and being representative of the true characteristic of the at least one screw; determining a third table of values, presenting the torque as a function of the angle and being representative of disturbances induced by the screwdriver during the rise in torque, from the first and second tables; analysis of the third table, delivering information representative of a dispersion and/or a deviation relative to the screwing objective, resulting from the screwdriver-induced disturbances.