发明授权
- 专利标题: Control method for jerk-limited speed control of a movable machine element of a numerically controlled industrial processing machine
- 专利标题(中): 数控工业加工机的可移动机械元件的加速度限制速度控制的控制方法
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申请号: US10816788申请日: 2004-04-02
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公开(公告)号: US07208901B2公开(公告)日: 2007-04-24
- 发明人: Uwe Ladra , Elmar Schäfers
- 申请人: Uwe Ladra , Elmar Schäfers
- 申请人地址: DE Munich
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DE Munich
- 代理商 Henry M. Feiereisen
- 优先权: DE10315525 20030404
- 主分类号: G05B19/416
- IPC分类号: G05B19/416 ; G05B7/02
摘要:
A control method for controlling a speed of a movable machine element of a numerically controlled industrial processing machine with jerk limitation is described. The processing machine can be, for example, a machine tool, a production machine and/or a robot. A travel path of the movable machine element is first decomposed into a plurality of sequentially arranged, interpolatable travel sections. Jerk profiles are then determined for the interpolatable travel sections, which are modified with a parameter-dependent shape function. The modified jerk profiles provide a filter action that can be represented by bandpass filters having blocking frequencies. The blocking frequencies of the bandpass filters are selected so as to substantially correspond to characteristic frequencies of the machine element. The control method significantly improves the machine dynamics without sacrificing accuracy.
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