Patent ID: 8294405
Filing Date: 2012-10-23
Classification: G05B

Abstract:
1. A method for guiding the movement of a machine element of a numerically controlled machine, comprising the steps of: defining limitations on movement of machine axles, said limitations including a maximum permissible path speed, a maximum permissible path acceleration and a maximum permissible jerk, subdividing a movement path of the machine element into successive movement sections, determining local minima of the maximum permissible path speed of the machine axles, determining for each local minimum a left-hand side and a right-hand side path speed segment, determining a speed profile by increasing for each of the left-hand side and the right-hand side path speed segments a resulting path speed, while maintaining a jerk that is less than the maximum permissible jerk and a path acceleration that is less than the maximum permissible path acceleration, until the path speed exceeds the maximum permissible path speed, connecting adjacent path speed segments of adjacent minima to one another at at least one connecting point, so that the path acceleration assumes a value of zero at the at least one connecting point, while complying with the maximum permissible jerk and the maximum permissible path acceleration, and determining from the determined speed profile an optimized jerk profile for the guiding the movement of the machine element.