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:
Sep. 22, 2015
Filed:
May. 23, 2013
Caterpillar Inc., Peoria, IL (US);
Thomas J. Bickel, Lacon, IL (US);
Amanda J. Wilke, Peoria, IL (US);
Wendell D. Stahl, Bradford, IL (US);
Andrew G. Genseal, Chillicothe, IL (US);
Md Nasir Uddin, Peoria, IL (US);
Dane S. Richards, Toulon, IL (US);
Jennie L. Nelson, Brimfield, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A redundancy system for a steering system having a primary controller and a primary power source is provided. The redundancy system may include a secondary controller coupled to a secondary power source and configured to manage control of the steering system, and an interface circuit disposed between at least a first node and a second node. The first node may be in electrical communication with the primary power source, and the second node may be in electrical communication with the secondary power source. The interface circuit may be configured to selectively engage a self-test of the primary power source and the secondary power source, isolate a short at the first node from the secondary power source, and isolate a short at the second node from the primary power source.