Deere & Company

Jesse A Braun

Kyle T Ressler

Benjamin J Swart

Jeffrey A Lawrence

Graham S Anderson

Jorge Cavazos Garcia

Meghan M Krause

Vaibhav Madalagi

Kelly J Kowalewski

Joel P Leyh

A diagnostic method, executable for example from remote computing devices or onboard control units for machines having various systems, each system having associated electronic controllers. For a specified machine and configuration, a hierarchical list is automatically generated comprising systems associated with the machine and one or more expected electronic controllers for each system. At least pursuant to initiation of a diagnostic program via an onboard control unit of the specified machine, respective input signals are obtained from present electronic controllers in functional communication with the onboard control unit. For each of any expected electronic controllers for which respective input signals are not obtained, a status alert is generated corresponding to a determined missing status or failure status, wherein the determined missing or failure status is based on an optionality of the respective expected electronic controller for which respective input signals are not obtained and/or an optionality of the corresponding system.

Machine diagnostic system and method based on expected controllers identification and communication

A mower deck automatic leveling system includes actuators that adjust the position of the mower deck at a plurality of different locations between the mower deck and vehicle frame at the selected cutting height, and sensors that calibrate the actuators by measuring the distance to a ground surface at a plurality of different locations on a mower deck at the selected cutting height.

Mower deck automatic leveling system

A mechanical front wheel drive roller wedging control system includes a 4WD switch in a vehicle operator station, a roller cage drag mechanism electrically activated by the 4WD switch and providing a drag on a roller cage if the 4WD switch is in an on position, and a throttle pedal switch actuated by the throttle pedal and that deactivates the roller cage drag mechanism when the throttle pedal is released. In an alternative embodiment, a controller may deactivate the roller cage drag mechanism when a throttle position sensor or engine speed sensor is below a minimum value.

Mechanical front wheel drive roller wedging control system

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Mayville, WI, United States of America

Jesse A Braun