Deere + Company

Jeffrey Loren Lubben

Pradip Shinde

Mark W Freudenberg

Andrew K Rekow

Edwin Roy Kreis

Nathanael K Rehn

Jeffrey M Tott

Thomas Butts

Scott A Hudson

Dwayne Alan Nystrom

Lowell D Stutzman

Mahendra S Patil

Viresh Hitanalli

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 brake pedal feedback system includes a spring driver, a first spring, a first brake pedal, and a second brake pedal. The spring driver includes a first recess and a second recess. The first brake pedal includes a first extension at least partially positioned in the first recess. The second first brake pedal includes a second extension at least partially positioned in the second recess. When the first brake pedal is in an engaged position and the second brake pedal is in a disengaged position, the first extension contacts a first surface of the first recess causing the spring driver to move the first spring from a relaxed condition to an energy storing condition, and the second extension is spaced apart from a first surface of the second recess.

Brake pedal feedback system

Systems and methods are provided for a demand-based hydraulic system. A clutch is positioned between a hydraulic pump and an engine. The clutch is selectively engaged to power the hydraulic pump based on a level of demand for hydraulic power. A control system is also provided to control the clutch and/or the pump in accordance with a plurality of operating mode.

Demand based hydraulic pump control system

A transmission includes a drive element, a first output element, a primary transmission unit, a reversing unit, and an intermediate gearbox. At least two of the at least five shifting elements of the primary transmission unit, at least one of the at least two shifting elements of the reversing unit, and at least one of the at least two shifting elements of the intermediate gearbox are activatable in combinations of at least four shifting elements so as to establish at least twelve forward gears between the drive element and the first output element.

Transmission and agricultural or industrial commercial vehicle

Systems and methods are provided for an electrically driven power take-off (PTO). A motor generator is coupled to a PTO output shaft. The motor generator is capable of varying rotation speeds and direction. By extension, the PTO output shaft may also have varying speeds and directions. A control system is also provided to control the motor generator and, therefore, the PTO output shaft in accordance with a plurality of operating mode.

Electric power take off

A transmission includes a drive element, a first output element, a primary transmission unit, a reversing unit, and an intermediate gearbox. At least two of the at least nine shifting elements of the primary transmission unit, at least one of the at least two shifting elements of the reversing unit, and at least one of the at least two shifting elements of the intermediate gearbox are activatable in combinations of at least four shifting elements so as to establish at least twenty-eight forward gears between the drive element and the first output element.

A transmission includes a drive element, a first output element, a primary transmission unit, a reversing unit, and an intermediate gearbox. At least three of the at least eight shifting elements of the primary transmission unit, at least one of the at least two shifting elements of the reversing unit, and at least one of the at least two shifting elements of the intermediate gearbox are activatable in combinations of at least five shifting elements so as to establish at least twenty-eight forward gears between the drive element and the first output element.

A transmission includes a drive element, a first output element, a primary transmission unit, a reversing unit, and an intermediate gearbox. At least three of the at least seven shifting elements of the primary transmission unit, at least one of the at least two shifting elements of the reversing unit, and at least one of the at least two shifting elements of the intermediate gearbox are activatable in combinations of at least five shifting elements so as to establish at least eighteen forward gears between the drive element and the first output element.

Vehicles, control systems for vehicles, and methods of operating vehicles are disclosed herein. A vehicle includes a frame structure, a front section, a rear articulation section, and a control system. The front section is coupled to the frame structure and to a front plurality of wheels supported for movement on a front axle. The rear articulation section is coupled to the frame structure and to a rear plurality of wheels supported for movement on a rear axle. The rear articulation section is pivotally coupled to the front section via an articulation joint and arranged opposite the front section along a vehicle axis. The control system is coupled to the frame structure and includes a mode selector configured to provide input indicative of a mode selected by an operator in use of the vehicle and a controller communicatively coupled to the mode selector.

Reverse steering modes for agricultural vehicles

A drive system includes a planetary gear set having first and second rotatable input members connected in driven relation with respective first and second power sources, and a rotatable output member connected in driving relation with a working piece, the first and second rotatable input members being connected in differentially rotatable communication with the output member. The input members are operable to vary the rotation and direction of the output member and the connected working piece. In an aspect, the output member is rotatable about an axis for driving the working piece, and the first and second input members are also rotatable about the axis. In a further aspect, the first and second input members include coupling regions for coupling the first and second power sources on-axis with the drive system. In a further aspect, the second power source is a hydraulic input motor concentric with the first input member.

Variable speed and reversible dual path fan drive system

A track work vehicle includes an axle input shaft defining a first axis of rotation, and a differential gear case having at least one planetary gear set. The track work vehicle includes a track drive system contained, at least in part, in the differential gear case. The track drive system includes a first gear coupled to the axle input shaft and a second gear coupled to the first gear. The track drive system includes a bevel gear assembly coupled to the second gear and a bevel gear set coupled to the planetary gear set. The track work vehicle includes at least one drive axle coupled to the planetary gear set and a drive wheel for driving a continuous ground-engaging track. The drive axle has a second axis of rotation that is vertically offset from the first axis of rotation and substantially coaxial with a centerline of the drive wheel.

High track drive system for track work vehicle

A track assembly that has a drive shaft providing torque to the track assembly, a first drive wheel, a second drive wheel, and a gear assembly rotationally coupling both the first drive wheel and the second drive wheel to the drive shaft.

Dual drive track system

An engine power delivery system provides bifurcated power-flow with transmission bypass. An engine power delivery system includes an engine that has an output element. A transmission has an input shaft coupled with the engine output element, wherein the engine is configured to generate more power than the transmission is capable of handling. A multi-speed gearing arrangement is included in the transmission and is coupled to the input shaft. An output shaft is coupled with the gearing arrangement and a vehicle axle is coupled with the output shaft to be driven thereby. A generator is configured to be intermittently driven by the engine. A motor is configured to receive electric power from the generator and to drive the vehicle axle without the transmission exceeding the maximum power rating.

Engine power delivery system with transmission gearing bypass

An integrated hybrid power system for a work vehicle includes an engine and an electric machine. The power system also includes a transmission configured to transfer mechanical power between the engine and the electric machine. The transmission, in a first configuration, is configured to transfer mechanical power in a first direction from the electric machine to the engine to start the engine. Furthermore, the transmission, in a second configuration, is configured to transfer mechanical power in the first direction and, alternatively, in a second direction from the engine to the electric machine after the engine is started.

Growing community of inventors

Hudson, IA, United States of America

Jeffrey Loren Lubben