Electricity: motive power systems – Positional servo systems – With stabilizing features
Patent
1988-09-13
1990-04-03
Shoop, Jr., William M.
Electricity: motive power systems
Positional servo systems
With stabilizing features
324225, 318632, 318758, G05B 501
Patent
active
049143662
ABSTRACT:
A plurality of speed-sliding compensation amount functions are stored in a sliding compensation amount data memory and one of these functions is selected in response to input of a selection signal. In the selected function, sliding compensation amount data corresponding to the speed of the object of positioning is read out. At least one of current position data and positioning target position data of the object is corrected by the read out sliding compensation amount data. A brake signal is generated on the basis of comparison of the current position data and target position data which have been subjected to this correction and a positioning control of the object is performed by this brake signal. On the other hand, a sliding amount detection circuit is provided for detecting sliding amount of the object from generation of the brake signal until actual stop of the object. The speed detected by a speed detector during generation of the brake signal is stored and, in accordance with the stored speed data and the detected sliding amount data, the selection signal for selecting the speed-sliding compensation amount function in the sliding compensation amount data memory is generated.
REFERENCES:
patent: 4651073 (1987-03-01), Shimizu et al.
patent: 4804913 (1989-02-01), Shimizu et al.
Yamashita Akira
Yuasa Yasuhiro
Bergmann Saul M.
Kabushiki Kaisha SG
Shoop Jr. William M.
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