Caterpillar Inc.

Christian A Schreiner

Dennis A Barney

Steven V Christensen

David G Young

April D Scott

Timothy A Cross

Ron J Penick

Michael R Lyons

Curtis V Rocke

The present invention includes a method and apparatus of managing time for a processing system located on a machine. The processing system includes a plurality of controllers and a communication network connecting each of the controllers. Each of the controllers has a local clock. The method includes the steps of establishing an operating characteristic of the machine, determining whether to update a local time in response to said operating characteristic, and updating said local time based upon the local clock in response to said update determination.

Method and apparatus of managing time for a processing system

A method and apparatus to determine the payload in a mobile machine by measuring the total weight of the mobile machine, the fuel in a fuel tank on the mobile machine, and the payload. The weight of the fuel is determined as the machine operates, and the actual weight of the payload is determined by subtracting the weight of the fuel and the weight of the mobile machine.

Method and apparatus for compensating for weight of fuel in a payload

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Peoria, IL, United States of America

Christian A Schreiner