Deere + Company

Neil Vincent Harber

Martin Lavern Ruhter

Josh Dean Graeve

Michael Eugene Kennedy

Nathan Joseph Horstman

Jed Douglas Polzin

Richard Arnold Valenzuela

Darrel Jeffrey Rowan

Darrell Jeffrey Rowan

Brent Allen Smith

Richard John Gotto

Charles Jon Paul Asp

James Michael Frett

Ryan Matthew Lutze

Maurice Thomas Nesbitt

Brian Joseph Zimmer

Joshua D Graeve

Dustin T Staade

James Leonard Montgomery

Richard Lee Forest

David Joseph Klas

Robert Alan Henson

Todd Allen Link

Jeffrey David Witwer

Stanley Kermit Hall

Jennifer Lynn Jaramillo

Leroy Ernest Kraske

Jeffrey Alan Bauer

Trent A Luoma

Andrew Joseph Hageman

Mark E Hull

Donald Walter Kruger

Julien Le Vely

Darrell Jeffrey Roway

Luke John Kurth

Edward C Messerlie

Dean Josh Graeve

Jean Dean Graeve

Charles Jon Asp

Maurice T Nesbitt

A vehicle and drive system control method for a vehicle including first and second traction elements coupled to the vehicle, a variable displacement pump, a bi-directional variable displacement first motor coupled to the first traction element, and a bi-directional second motor coupled to the second traction element. The pump, and first and second motors are coupled fluidly in series with one another. A control unit can determine a desired speed for the traction elements, and determine pump, first and/or second motor displacements based on the desired speed. First and second speed sensors can sense output speeds of the motors, and the pump, first and/or second motor displacements can be determined based on the motor output speeds. Articulation and steering sensor signals can also be used to determine pump, first and/or second motor displacements.

Drive system with serially arranged variable displacement componentry

A motor grader includes a base unit and a blade positioning assembly. The base unit has a main frame. The blade positioning assembly includes a pivot member attached to and extending downwardly from the main frame, and a blade lift member attached to a bottom end of the pivot member.

Bottom mount blade positioning assembly for a motor grader

A method and device for raising the temperature of exhaust gas from an engine by increasing parasitic loading on the engine without significantly increasing engine speed. This may be accomplished by increasing a demand on a hydraulic fan powered by a variable displacement hydraulic pump and meeting the demand by adjusting the displacement for the variable displacement hydraulic pump.

Increased fan speed to assist DPF regeneration

A control system for a construction vehicle, such as a motor grader, is provided. The control system includes a plurality of joysticks supported by an operator seat assembly of the motor grader.

Input control pattern

A ground engaging vehicle having a tool connected to the vehicle, at least one actuator coupled to the tool and an electronic controller. The electronic controller is controllably coupled to the at least one actuator. The controller includes an operator interface. The controller is configured for issuing a plurality of commands, recording the commands, positioning the tool and replaying at least some of the commands. The issuing step includes issuing a plurality of commands to the at least one actuator using the operator interface to place the tool in a position relative to the vehicle. The recording step records the commands issued in the issuing step. The positioning step includes positioning the tool in another position different from the position. The replaying step includes replaying at least some of the commands recorded in the recording step, thereby repositioning the tool substantially in the original position.

Motor grader blade positioning system and method

Arrangement of steering wheel and operator seat assembly

Joystick configuration

Armrest mounted grader control

A vehicle is disclosed having a hydraulic system. The hydraulic system includes a pressure regulator that maintains the output pressure from a hydraulic pump above a predetermined minimum pressure.

Load sense boost device

Auxiliary input arrangement

The present invention relates to machinery having multiple hydraulically actuated functions and, more particularly, to a control system for using a single proportional valve to control multiple hydraulically actuated functions on a piece of machinery such as a tractor or front-end wheel loader.

Control system using a single proportional valve

A hydraulic control system in which a pump for pressurized hydraulic fluid connects with a valve assembly having a valve element displaceable in a chamber to selectively direct fluid to a load driven by the hydraulic system. Surfaces on the end faces of the valve element are exposed to hydraulic pressure from a controller via electro-hydraulic solenoid valves. The surfaces of the valve element adjacent the end faces are undercut to establish a leakage flow path and the solenoid valves are selectively actuated to pressurize the end faces to a level below normal actuation of the valve element but high enough to cause fluid to return to a drain and thus increase the temperature of the hydraulic fluid in the system.

Hydraulic system with warm up circuit

Growing community of inventors

Holy Cross, IA, United States of America

Neil Vincent Harber