The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 19, 2013
Filed:
Nov. 09, 2010
System and method for testing a secondary servo control circuit in a redundant control configuration
Dinesh Kumar Kn, Bangalore, IN;
Nagaraja Sundaresh, Bangalore, IN;
Karthik Giritharan, Bangalore, IN;
Srinivasan Rajagopal, Bangalore, IN;
Amol Kinage, Bangalore, IN;
Rakesh Damodaran Nair, Bangalore, IN;
Sai Krishnan Jagannathan, Bangalore, IN;
Sunil M. Ingawale, Bangalore, IN;
Sachin Kumar, Bangalore, IN;
Dinesh Kumar Kn, Bangalore, IN;
Nagaraja Sundaresh, Bangalore, IN;
Karthik Giritharan, Bangalore, IN;
Srinivasan Rajagopal, Bangalore, IN;
Amol Kinage, Bangalore, IN;
Rakesh Damodaran Nair, Bangalore, IN;
Sai Krishnan Jagannathan, Bangalore, IN;
Sunil M. Ingawale, Bangalore, IN;
Sachin Kumar, Bangalore, IN;
Honeywell International Inc., Morristown, NJ (US);
Abstract
A system, apparatus and method are provided for testing a secondary servo control circuit in a redundant control configuration. A first circuit is configured to receive a control signal and to control an attribute of an actuator based on the control signal using a first control input of the actuator. A second circuit is configured to test operation of an actuator circuit using a test signal. The actuator circuit includes at least part of the second circuit and a second control input of the actuator. The test signal is selected to avoid causing independent motion of the actuator. The actuator could be a dual coil servo valve, and the test signal could be a current (such as a DC current, an AC current, or a pulsed current) having a magnitude less than a bias current of the actuator.