Deere & Company

Jason E Haubenstricker

Scott N Clark

Darren J Cruchelow

Manoj T Muttepawar

Nishant Kharche

Aaron J Geffre

Systems and methods for performing an engine regeneration procedure in a work machine with an internal combustion engine are described. An electronic controller determines, based on information associated with one or more machine sensors and/or machine actuators, whether the work machine is in an idle state (e.g., a storage or non-harvesting state). In response to determining that the work machine is in the idle state, the electronic controller displays a user approval prompt on the display of an operator interface and performs the engine regeneration procedure in response to receiving a user input approving the engine regeneration procedure after displaying the user approval prompt. Conversely, in response to determining that the work machine is not in the idle state, the electronic controller performs the engine regeneration procedure without displaying the user approval prompt and without receiving any user input approving the engine regeneration procedure.

State-based mechanism for performing engine regeneration procedure

A fan control system for a variable pitch fan of a work vehicle includes a blade pitch module that adjust a pitch of a plurality of blades of the variable pitch fan to generate airflow in a first direction. A reversing module selectively commands a fan reversal that includes instructing the blade pitch module to temporarily adjust the pitch of the plurality of blades to generate airflow in a second direction. A first timer module, in response to the reversing module commanding the fan reversal, resets and increments a first timer and compares the first timer to a first threshold. A first reversal prevention module, in response to the first timer being less than the first threshold, prevents the reversing module from commanding a fan reversal by indicating that a first type of fan reversal is not permitted.

Variable pitch fan control system

A fan control system for a variable pitch fan of a work vehicle includes a first sensor that measures a parameter of a cooling system and a blade pitch module that adjust a pitch of a plurality of blades of the variable pitch fan to generate airflow in a first direction. A reversing module selectively commands a fan reversal that includes instructing the blade pitch module to temporarily adjust the pitch of the plurality of blades to generate airflow in a second direction. A first timer module, in response to the reversing module commanding the fan reversal, resets and increments a first timer and compares the first timer to a first threshold. A first reversal prevention module, in response to the first timer being less than the first threshold, prevents the reversing module from commanding a fan reversal by indicating that a first type of fan reversal is not permitted.

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Davenport, IA, United States of America

Jason E Haubenstricker