Dual turbine controller

Details Dual turbine controller Dual turbine controller

1982-04-15

1985-01-15

Wise, Edward J.

Boots, shoes, and leggings

364184, 364149, 364174, G06F 1546, H02P 904

Patent

active

044942079

ABSTRACT:
Primary and secondary controllers both receive independent digital representations of shaft speed. Only one of the outputs of the two controllers is used. In order to detect a fault and isolate it to one of the two controllers, comparison is performed on the response of each controller with the response of the other controller. In addition, the response of each controller is compared with a system mathematical model which predicts the response which each controller should provide to a given set of inputs. If the first comparison indicates that one of the controllers is bad, the comparison with the system mathematical model identifies the faulty controller and provides a signal which removes it from operation and enables the good controller to begin providing control signals.

REFERENCES:
patent: 4027145 (1977-05-01), McDonald et al.
patent: 4029952 (1977-06-01), Giras et al.
patent: 4071897 (1978-01-01), Groves, Jr. et al.
patent: 4087860 (1978-05-01), Beatty et al.
patent: 4153198 (1979-05-01), Eki et al.
patent: 4179742 (1979-12-01), Stern et al.
patent: 4251873 (1981-02-01), Joby
patent: 4368520 (1983-01-01), Hwang et al.

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