Deere & Company

Michael Keith Wyffels

Philip Alan Harden

William J Sikula, Jr

Dan T Montgomery

Leon F Nelson

An agricultural combine having an internal combustion engine for driving the various assemblies on the combine. An electronic engine controller is used to monitor and control the operation of the engine. Sensors provide inputs to the electronic engine controller. In response to the inputs from these sensors the electronic engine controller controls the output of the engine. The straw chopper, the propulsion assembly, the separating assembly and the harvesting assembly are provided with on/off switches that are in communication with the electronic engine controller. These on/off switches located in the operator's cab of the combine which are used to activate these crop processing assemblies. In response to an off signal by one or more of these switches the maximum power level is decreased accordingly.

Derating the engine of a combine in response to usage

A combine auger drive is operated by closing a switch which energizes a solenoid-operated valve which engages a hydraulic auger drive clutch. An electronic controller controls combine engine fuel delivery rate in response to sensed engine speed on throttle position via an electrically-operated, rack-controlled fuel pump. A summing unit modifies the rack position control signal when the switch is closed to increase fuel pumping rate when the auger drive is engaged.

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Geneseo, IL, United States of America

Michael Keith Wyffels