Aeronautics and astronautics – Aircraft control – Automatic
Patent
1977-06-30
1978-06-13
Kunin, Stephen G.
Aeronautics and astronautics
Aircraft control
Automatic
318564, 318566, G05D 100, G05B 903
Patent
active
040944816
ABSTRACT:
The servomotor outputs of two substantially identical servo channels, are connected through a differential mechanism to position an attitude control surface of an aircraft in response to common or separate command signals applied to the respective channels. The dual channels are continuously monitored in such a manner that if the velocities and accelerations of the two servomotor outputs do not track each other within predetermined ratio limits, appropriate servo brakes will clamp the output of the servomotor with the highest acceleration, or the failed channel. The rapidity with which the failed channel is detected and the servo brakes applied assures that essentially no control surface motion occurs and hence no attitude or flight path transients are evident by reason of the failure. Clamping of the failed servomotor, moreover, assures that the remaining servo channel may remain operative. In addition to and simultaneous with the clamping of the failed channel, the pilot is warned by appropriate alerting devices of the failure so that he may disconnect the autopilot and manually take over control.
REFERENCES:
patent: 3143693 (1964-08-01), Fearnside et al.
patent: 3462662 (1969-08-01), Carpenter
patent: 3593092 (1971-07-01), Flippo
patent: 4035705 (1977-07-01), Miller
Cefalo Albert P.
Kunin Stephen G.
Sperry Rand Corporation
Terry Howard P.
LandOfFree
Fail passive dual servo with continuous motor speed and accelera does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fail passive dual servo with continuous motor speed and accelera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fail passive dual servo with continuous motor speed and accelera will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-5469