The method of producing the reference input variables for position as a rule, the circles in numerically controlled machines

摘要

A method for generating a reference variable for a position control loop of a numerically path-controlled machine, of a numerical control path speed values (v (k)) as a result of a discrete-time control values at discrete sampling instants (k) as a web should be preset values, from which by means of a filter discrete modified position desired values (l ^ (k)) are generated, which are fed to the position control loop as a reference variable, wherein the determination of a modified operator-controlled (l ^ (k)) to a point in time (k) comprises the steps of:– Using a sequence of the web speed values (v (k – i), with i = 0, 1, 2,.. n – 1) and at least one of a web speed value (v (k – i)) is derived from the first position value (l (k – n))– Weighting of the web speed values (v (k – i)) by combining with weighting coefficients, which are determined so that a without filtering sprang - or ramp-shaped curve of a sequence of web speed values (v (k – i)) by means of filtering is converted into a smooth, preferably everywhere continuously differentiable curve,– Summing of the weighted web speed values (v (k – i)) and of the..