发明授权
- 专利标题: Control method and apparatus for a servo- mechanism
- 专利标题(中): 伺服机构的控制方法和装置
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申请号: US322411申请日: 1994-10-04
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公开(公告)号: US5497059A公开(公告)日: 1996-03-05
- 发明人: Fujio Tajima , Hideki Tanaka , Kooetsu Okuyama , Tomokazu Ishii , Kenji Toki
- 申请人: Fujio Tajima , Hideki Tanaka , Kooetsu Okuyama , Tomokazu Ishii , Kenji Toki
- 申请人地址: JPX Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX3-268777 19910920
- 主分类号: G05B13/04
- IPC分类号: G05B13/04 ; G05B17/02
摘要:
A servo-mechanism control system calculates an operation value to be applied to a control object from a desired value of a control output and a detected control output of the control object, and drives the control object based on the calculated operation value so that the control output becomes equal to the desired value. The control system is less sensitive to the variation of characteristics of the control object and disturbances, and stable control is accomplished by a simple circuit arrangement. A mathematical model and its inverse function, which are based on the assumption that the control system is not subjected to the variation of characteristics of the control object and disturbances, are used to calculate a model-based control output. In error of the operation value is calculated from the difference between the model-based control output and the detected control output by using the inverse function of the mathematical model, and the operation value applied to the control object is modified by subtracting the error from the calculated operation value. Alternatively, the model-based operation value is calculated from the detected control output by using only the inverse function of the mathematical model, and the operation value is modified based on the difference between the model-based operation value and the calculated operation value.
公开/授权文献
- US4906067A Optical cable comprising a plurality of bundle elements 公开/授权日:1990-03-06