Caterpillar Inc.

James V Dornberger

Robert A Herold

Keith F Harvey

Jason Bell

Stephen Thompson

Richard Adams

Chad A Moore

Jonathan D Chappell

Paul Graham

A control system for a machine is disclosed. The control system may have an engine configured to combust a mixture of fuel and air and generate a mechanical power output and a flow of exhaust, and a sensor configured to generate a signal indicative of the machine moving between zones having different air characteristics. The control system may also have a controller in communication with the engine and the sensor. The controller may be configured to selectively adjust operation of the engine based on the signal in an amount related to the air characteristics.

Control system implementing derate based on air characteristics

A method for automatically controlling the downhill speed of a machine. The method includes establishing a target machine speed based on a current machine speed and determining whether at least one trigger condition including a grade greater than a predetermined threshold has been satisfied. If satisfied, the method activates a control system to control at least one of a powertrain retarder and a change in a transmission gear to prevent exceeding the target machine speed.

Automatic downhill speed control system

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Canton, IL, United States of America

James V Dornberger