Numerical control method and numerical control system using the same
AssigneeSony Corporation
InventorIetoshi Itoh
Life of this patent
Estimating the term…
Abstract
To enable the free setting of an acceleration and deceleration pattern free from the amount of movement and the movement time a numerical control method controls the operation of a controlled object by a target function. The computes the target function Y(t) by an amount of change .DELTA.Y.sub.t, a normalized target function y(t), and correction values .beta., .delta., defined as: and the parameters .beta..sub.a and .beta..sub.d are defined as ##EQU1##
Claims2
A numerical control method for controlling an acceleration and deceleration of a controlled object based on a target function, comprising the steps of:
- computing the target function (Y(t)) representing a position of said controlled object as a function of time with a value of change (.DELTA.Y.sub.t) in said position, a normalized target function (y(t)), and correction values (.beta.,.delta.), by multiplying said value of change (.DELTA.Y.sub.t), with said normalized target function (y(t)), and with said correction values (.beta.,.delta.), and providing said target function as an input to a servo loop for controlling the acceleration and deceleration of said controlled object.
A numerical control system for controlling an acceleration and declaration of a controlled object based on a target function (Y(t)), comprising:
- an input unit for receiving as inputs a value of change (.DELTA.Y.sub.t) and a normalized target function (y(t)), said target function (Y(t)) representing a position of said controlled object as a function of time;
- a correction value calculation unit for calculating correction values (.beta.,.delta.) based on said value of change (.DELTA.Y.sub.t), and normalized target function (y)t));
- a target function computation unit for computing the target function (Y(t)) based on the information from said input unit and said correction value calculation unit;
- and
- means for obtaining said target function by multiplying said value of change (.DELTA.Y.sub.t) with said normalized target function (y(t)) and with said corrections values (.beta.,.delta.),
- wherein an output of said target function computation unit is provided as an input to a servo control system for controlling the acceleration and deceleration of said controlled object.
Dependencies are inferred from the claim text.