Boots – shoes – and leggings
Patent
1989-03-17
1991-07-02
Smith, Jerry
Boots, shoes, and leggings
364176, G05B 1302, G05B 1101
Patent
active
050290665
ABSTRACT:
A system for controlling a process system subject to an external disturbance by adjusting a value of a control amount outputted by the process system to a given target value. The system includes a difference computing unit for computing a difference between the control amount value and the given target value, a main control unit for performing at least proportional and integral control operations from a choice of proportional, integral and differential control operations based on control constants including proportional gain, integration time, and derivation time adjusted to a first given state that suppresses fluctuation of the control amount produced by external disturbance, and a compensation control unit for performing a compensation control operation to equivalently adjust the control constants of the main control unit to second given state that tracks target value variation.
REFERENCES:
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patent: 4139887 (1979-02-01), Levesque, Jr.
patent: 4500950 (1985-02-01), Putman
patent: 4563735 (1986-01-01), Hiroi et al.
patent: 4679136 (1987-07-01), Shigemasa
patent: 4755924 (1988-07-01), Hiroi
patent: 4882526 (1989-11-01), Iino et al.
Kabushiki Kaisha Toshiba
Smith Jerry
Trammell Jim
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