Deere + Company

Nathanael K Rehn

Jeffrey M Tott

Trent Lynn Goodnight

Jordan Tagtow

Lowell D Stutzman

Timothy J Ofenloch

Michael Andrew Holland

Douglas Van Meter

Jacob M Kongs

Suresh Putta

Jacyn R Goebel

Hanna J Wickman

Benjamin J Heimbuch

Jeremy P L'Heureux

Kevin R King

Carolyn R Herman

Robert Clayton Emmert

Christian Von Holst

Daniel J Garvin

Curtis P Thoreson

Michael A Rehberg

Fernando Sandoval

Kyle A Maakestad

Anthony D'Alessandro

Jacob M Mazanec

Michael S Ramsey

Zachary Shaver

An auxiliary hydraulic system including an accumulator, a control valve, and a hydraulic connector. The accumulator connects to a primary hydraulic system including a hydraulic pump, a brake circuit, and a steering circuit. The control valve selectively allows or prevents flow from an accumulator to at least one of the brake circuit and the steering circuit. The hydraulic connector selectively connects an external source to the accumulator and the control valve.

Auxiliary hydraulic system for a work vehicle

A fluid management system for a drivetrain includes a first reservoir, a second reservoir, a main suction line, and a second suction line. The first reservoir is positioned in a lower portion of a transmission. The first reservoir has a preselected fluid level. The second reservoir is positioned in a lower portion of the transmission. The second reservoir is separated from the first reservoir by a barrier having an opening. The main suction line has an opening positioned in a lower portion the first reservoir below the preselected fluid level. The second suction line has an opening positioned in a lower portion of the second reservoir.

Fluid management system for a drivetrain

A steering system for controlling a direction of travel of a work machine includes a steering device controllable by an operator of the work machine. The steering device is coupled to an axle of the work machine for controlling an angular orientation of the wheels. A brake is coupled to the steering device and is controllably applied to apply a first amount of resistance to the steering device. A motor is coupled to the steering device and is controllably activated to apply a second amount of resistance to the steering device. A controller controls the steering system of the work machine in at least a first operating mode and a second operating mode. In the first operating mode, the controller controls the brake between an applied position and an unapplied position, whereas in the second operating mode, the controller controls the motor between an active position and a de-activated position.

Multi-selectable application mode steering system and method thereof

Display screen or portion thereof with an icon

A system and technique for determining functionality of a hydraulic system including first and second motors mutually coupled in driving relation with a pump, a sensor generating a signal representative of a monitored condition, and a controller configured to selectively control activation and deactivation of the motors. Fitness detection logic stored in memory of the controller is executable by a processor to: determine, based on the signal while the first motor is activated and second motor is deactivated during a first test interval, whether the monitored condition meets a predefined threshold prior to expiration of the first test interval; determine, based on the signal while the second motor is activated and first motor is deactivated during a second test interval, whether the monitored condition meets the predefined threshold prior to expiration of the second test interval; and generate a readiness signal representative of the determined functionality of the hydraulic system.

System and method for determining operational readiness of a backup hydraulic pump system

A mobile work machine includes a propulsion subsystem that propel the mobile work machine about a worksite. The mobile work machine includes a steering subsystem that steers the mobile work machine about the worksite. The mobile work machine includes a stability determination system that determines a stability factor based on a characteristic of the steering subsystem. The mobile work machine also includes a control system that controls the mobile work machine based on the stability factor.

Loader stability system

A work machine may include an idler wheel, a drivable track engaged with the idler wheel, and an actuator configured to move the idler wheel to adjust the tension in the drivable track. A controller may actively instruct the actuator to adjust the tension in the drivable track based on the pressure in the actuator and variables associated with the drivable track and the work machine.

Active tension system and method

A method of controlling a work machine having at least one wheel includes providing a controller, an operator control, and a steering system including a steering wheel position sensor, a road wheel angle sensor, a speed sensor, and a feedback device. The method includes detecting a change in steering wheel position via the steering wheel position device and a wheel speed of the at least one wheel via the speed sensor. A predicted lateral acceleration is calculated by the controller as a function of wheel speed and a feedback torque is determined by the controller as a function of the predicted lateral acceleration. The feedback torque is determined from a plurality of feedback torque curves stored by the controller, where each of the plurality of feedback torque curves corresponds to a sensitivity level selectable from the operator control. The feedback torque is commanded to the feedback device.

Operator selectable steering mode with variable torque feedback and system thereof

A multi-coupler assembly for a work vehicle includes a first bank of fluid connectors, a second bank of fluid connectors configured to matingly engage the first bank of fluid connectors along a coupling axis, and a coupler mechanism coupled to the first bank of fluid connectors. The coupler mechanism is controllable to bring the second fluid connector bank into mating engagement with the first fluid connector bank. A breakaway feature is integrated into the coupler mechanism. The breakaway feature facilitates controlled disengagement of the first fluid connector bank from the second fluid connector bank along the coupling axis during a breakaway event, such as when an implement inadvertently detaches from the work vehicle. The breakaway feature may permit controlled disengagement of the first and second fluid connector banks without requiring movement of the coupler mechanism.

Work vehicle multi-coupler with breakaway feature

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Waterloo, IA, United States of America

Nathanael K Rehn