Caterpillar Inc.

Arundhati Karumanchi

James Wagner

Tara L Cobble

Salim Salim

Shannon S Duvendack

A computer based system and method for providing case base diagnostics for a work machine, is provided. The case bases include diagnostic information and processes related to the work machine. The system and method receive a description of an initial problem from a user and display at least one question, as a function of the initial problem. The system and method also display a first set of recommended actions, as a function of the initial problem, and receive an answer from the user to the at least one question. The system and method further display a second set of recommended actions as a function of the initial problem and the answer to the at least one question, wherein the second set of recommended actions is a subset of the first set of recommended actions.

Method and system for providing diagnostics for a work machines

A method for dynamically measuring and indicating payload weight for a machine having at least one lift cylinder for elevating a payload carrier is provided. The method includes the steps of lifting a load of known mass during calibrating and sensing a calibration lift cylinder velocity during calibration. To determine payload, lift cylinder hydraulic pressure and lift cylinder extension are sensed during a lifting operation of the machine. A first estimate of the payload is determined as a function of the lift cylinder hydraulic pressure and extension. The method further includes the steps of determining an operating lift cylinder velocity during the lifting operation and determining a velocity correction factor as a function of the calibration lift cylinder velocity and the operating lift cylinder velocity. A second estimate of the payload is calculated as a function of the first estimate and the velocity correction factor.

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Cary, NC, United States of America

Arundhati Karumanchi