Title:
REGULATOR WITH PID SELECTION FUNCTION
Document Type and Number:
Japanese Patent JP3875112
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To solve the problem that control at the time when a PID value is changed in not smoothly performed because the PID value is instantly changed when the PID value is changed, a manipulated variable rapidly changes in accordance with the instant change of the PID value.
SOLUTION: A fuzzy calculation means 64 is provided for performing a fuzzy calculation on the basis of a switching time T inputted from a switching time inputting means 7 with a manual operation or a switching time T that is automatically calculated and determined, unchanged PID values (P1, I1 and D1) stored in an unchanged PID values storing means 62, and changed PID values (P2, I2 and D2) stored in a changed PID values storing means 63 to calculated PID values (P, I and D) and outputting the calculated PID values to a PID calculation means 8.
Inventors:
Hirofumi Hirayama
Application Number:
JP2002017347A
Publication Date:
January 31, 2007
Filing Date:
January 25, 2002
Export Citation:
Assignee:
YAMATAKE CORPORATION
International Classes:
G05B11/36; G05B11/42; G05B13/02; (IPC1-7): G05B11/36; G05B13/02
Domestic Patent References:
| JP7064644A | ||||
| JP4188201A | ||||
| JP5173605A | ||||
| JP10133702A | ||||
| JP2000181549A |
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Konobu Kato