Fault tolerant controller

Details Fault tolerant controller Fault tolerant controller

1983-10-27

1986-07-01

Ruggiero, Joseph

Boots, shoes, and leggings

364186, 36443101, 371 14, 371 62, G05B 902, G05B 2302, G06F 1100

Patent

active

045983550

ABSTRACT:
A controller operable in a normal mode of operation to control an output device in response to a sensed condition includes means for detecting a fault in the controller or output device. Means are responsive to the fault detecting means for controlling the output device in a failsafe mode of operation wherein the output device is safely operated without regard to the sensed condition when a fault is detected. Means responsive to the fault detecting means causes a return to the normal mode of operation only if the existence of the fault can be detected while in the failsafe mode and the fault ceases to exist during such time.

REFERENCES:
patent: 4071897 (1978-01-01), Groves, Jr. et al.
patent: 4117459 (1978-09-01), Douglas et al.
patent: 4118792 (1978-10-01), Struger et al.
patent: 4191913 (1980-03-01), Arnold et al.
patent: 4298938 (1981-11-01), Wang et al.
patent: 4377845 (1983-03-01), Markham et al.
patent: 4398233 (1983-08-01), Bala et al.
patent: 4409635 (1983-10-01), Kraus
patent: 4477870 (1984-10-01), Kraus

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