Method for controlling an actuation assembly

A method for controlling an electric actuation assembly, comprising a current controller connected to an actuator, the actuator comprising a motor coupled with a gearbox having a known reduction ratio, the actuation assembly being provided with an output, the method comprising the following steps:

• applying a plurality of first known output forces on the output of the actuation assembly and recording using the current controller, a plurality of associated first input intensities to be applied at the input of the actuation assembly to obtain a balance of the actuation assembly in a first direction of the output;
• establishing, by interpolation, a first characteristic function of the actuation assembly linking a controlled intensity at the input of the actuation assembly and a force obtained at the output of the actuation assembly;
• applying a plurality of second known output sources on the output of the actuation assembly and recording, using the current controller, a plurality of associated second input intensities to be applied at the input of the actuation assembly to obtain a balance of the actuation assembly in a second direction of the output opposite to the first direction;
• establishing, by interpolation, a second characteristic function of the actuation assembly linking a controlled current at the input of the actuation assembly and a force obtained at the output of the actuation assembly;
• establishing, on the basis of the first characteristic function of the actuation assembly, the second characteristic function of the actuation assembly of a magnetic constant of the motor and of the reduction ratio of the gearbox, a control correction coefficient intended to be applied by multiplication to a control input value;
• controlling the actuation assembly by applying the control correction coefficient.