Caterpillar Inc.

Federico Fernandez

Paul Thomas Corcoran

A method and apparatus for determining a profile of a pavement. The method and apparatus includes determining a slope of a mobile machine as the mobile machine traverses the pavement, and determining a change in elevation of the pavement as a function of the slope and a distance from a first ground engaging member on the mobile machine to a second ground engaging member on the mobile machine, the change in elevation being indicative of a profile of the pavement.

Real time pavement profile indicator

A method and apparatus for controlling the inflation pressure on a pneumatic compactor. The method and apparatus includes means for dynamically determining a level of density of a material to be compacted, a control system for determining a desired inflation pressure as a function of the density, and an inflation pressure system for adjusting the inflation pressure in response to the desired inflation pressure.

Method and apparatus for controlling the inflation pressure of a pneumatic compactor

In a first embodiment, a method and apparatus for determining compaction performance of a material by a compactor having a known compaction width. The method and apparatus includes determining a lift thickness of the material, determining a rolling resistance of the compactor, determining a level of compactive energy delivered to the material as a function of the compaction width, the lift thickness and the rolling resistance, and determining the compaction performance of the material as a function of the compactive energy. In a second embodiment, a method and apparatus for determining compaction performance of a material by a compactor. The method and apparatus includes determining a ground speed of the compactor, determining a rolling resistance of the compactor, determining a propelling power of the compactor as a function of the ground speed and the rolling resistance, and determining the compaction performance of the material as a function of the propelling power of the compactor.

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Washington, IL, United States of America

Federico Fernandez