Caterpillar Inc.

Thomas A McCauley

Bryan A Vogt

Hans P Dietz

Marvin K Palmer

Jeffrey L Degroot

Angela I Tan

James A Morrison

An electronic engine control is provided that compensates the engine's power output capability based on the parasitic power load demands.

Electronic engine control and method

A method of operating a fan control system associated with a radiator may include rotating a fan in a first direction at an operating speed to direct cool air toward the radiator for a first predetermined period of time. After expiration of the first predetermined period of time, rotation of the fan in the first direction may be decelerated. The method may also include accelerating the fan in a second direction opposite to the first direction and rotating the fan in the second direction at a predetermined speed for a second predetermined period of time. After expiration of the second predetermined period of time, rotation of the fan in the second direction may be decelerated, and the fan may then be accelerated in the first direction to the operating speed.

Reversible automatic fan control system

A method and apparatus for controlling the speed of an engine having a plurality of cylinders and a compression brake operable on one or more of the cylinders is disclosed. The method includes determining a speed of the engine, comparing the engine speed to a first threshold, and activating the compression brake for at least one of the cylinders in response to the engine speed exceeding the first threshold.

Growing community of inventors

Brimfield, IL, United States of America

Thomas A McCauley