US 6,982,536 B2
Device and method for apportioning a movement of a machine element along a drive axis of a machine tool or production machine
Klaus Geissdörfer, Erlangen (Germany); Carsten Hamm, Erlangen (Germany); and Wolfgang Papiernik, Neunkirchen (Germany)
Assigned to Siemens Aktiengesellschaft, Munich (Germany)
Filed on Nov. 29, 2004, as Appl. No. 10/999,197.
Claims priority of application No. 103 55 614 (DE), filed on Nov. 28, 2003.
Prior Publication US 2005/0116676 A1, Jun. 02, 2005
Int. Cl. G05B 19/25 (2006.01)
U.S. Cl. 318—632 7 Claims
OG exemplary drawing
 
1. A device for apportioning a movement of a machine element driven by at least two drives for movement along a drive axis of a machine tool or production machine, comprising:
a low-pass filter that filters predetermined desired drive axis values to generate filtered desired drive axis values;
a first controller receiving the filtered desired drive axis values as control input value for controlling a first of the at least two drives;
a delay unit with a constant group delay time, said delay unit temporally delaying the desired drive axis values to generate delayed desired drive axis values;
a subtracter that determines a difference between the filtered desired drive axis values and the delayed desired drive axis values; and
a second controller receiving the determined difference and providing, based on the determined difference, a second control input value for controlling a second of the at least two drives.