Title :
A virtual closed loop remedy for temporary sensor failures
Author :
Suh, Jon ; Bajpai, Gaurav ; Chang, B.C.
Author_Institution :
Dept. of Mech. Eng. & Mech., Drexel Univ., Philadelphia, PA, USA
Abstract :
Digital system upsets can occur as a result of electrical transients induced by electromagnetic fields. One possible upset is the irrecoverable loss of sensor data due to noisy readings or data changes in the input circuitry. The control system may not perform adequately when faced with such modes of failure. The paper focuses on a technique in which a virtual closed loop is used to overcome these modes of failure. The advantage of using this technique is confirmed by results from a DC motor control system set-up in electromagnetic environments
Keywords :
DC motors; closed loop systems; electromagnetic interference; fault tolerance; machine control; sensors; DC motor control system; data changes; electrical transients; electromagnetic fields; input circuitry; temporary sensor failures; virtual closed loop remedy; Airplanes; Circuit faults; Circuit noise; Control systems; Digital systems; Electromagnetic fields; Feedback; Magnetic sensors; Mechanical sensors; Sensor systems;
Conference_Titel :
Control Applications, 1999. Proceedings of the 1999 IEEE International Conference on
Conference_Location :
Kohala Coast, HI
Print_ISBN :
0-7803-5446-X
DOI :
10.1109/CCA.1999.801196
