| 摘要 |
PCT No. PCT/DE95/01280 Sec. 371 Date Jun. 27, 1997 Sec. 102(e) Date Jun. 27, 1997 PCT Filed Sep. 15, 1995 PCT Pub. No. WO96/10221 PCT Pub. Date Apr. 4, 1996In a method for a velocity control of electric drives, which permits limiting of the axial accelerations without contouring errors, the required dynamic path limits being determined sufficiently accurately in advance in the vicinity of singular regions by determining the course of the machine axes before the interpolation in an approximate fashion by an approximation via polynomials of higher order and deriving a possibly required local path velocity limit or local path acceleration limit for each control data record with the aid of the global machine axis upper acceleration limits and machine axis upper velocity limits. Otherwise, the feed rate remains constant. The scanning increment for the approximation is variable and is adapted depending on the calculated machine axis loading by scanning the critical regions more finely.
|
