Caterpillar Inc.

Jennie L Nelson

Wendell Dean Stahl

Thomas J Bickel

Amanda J Wilke

Andrew G Genseal

Md Nasir Uddin

Dane S Richards

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.

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Brimfield, IL, United States of America

Jennie L Nelson