Deere + Company

Edwin Roy Kreis

Michael Dean Kollath

Dennis Aaron Bowman

Benjamin J Heimbuch

Peter Alan Kosmicki

Michael Carl Harting

Mark S Earley

Andrew M Tilkes

Robert Lee Wood, Jr

Rodney D Lair

Jeffrey Loren Lubben

Charles Nicholas Warren

Jeffrey M Tott

Robert J White

Digvijay A Bhosale

Joe Lyle Schutte

Scott A Hudson

Jonathan T Roth

Douglas Robert Fischer

Raymond D Thompson

Mahendra S Patil

Jeffrey David Dawson

Scott Lisle Cook

Jan J Wojewodzki

Charles H Carda

Casee Michele Eisele

Steering a vehicle in an electronic steering mode of operation that includes a front axle steering system, a rear axle steering system, one or more vehicle environment sensors, and a controller operatively coupled with the front axle steering system, the rear axle steering system, and the vehicle environment sensors. Commanding the vehicle to operate at a desired vehicle speed, detecting a lateral force acting on the vehicle in response to input from the vehicle environment sensors, and determining an actual lateral acceleration of the vehicle and a predicted lateral acceleration of the vehicle from the desired vehicle speed. Determining a lateral acceleration error by comparing the predicted lateral acceleration to the actual lateral acceleration, and determining if the lateral acceleration error exceeds a lateral acceleration limit, then turning both of the front axle steering system and the rear axle steering system to a crab steering correction angle.

Automatic crab steering on side hills

An undercarriage assembly for a tracked vehicle with a prime mover that provides a torque to the tracked vehicle, a final drive sprocket configured to provide a final drive torque on a track, a transmission mechanically coupled to the prime mover and the final drive sprocket to selectively transfer at least some of the torque generated by the prime mover to the final drive sprocket, at least one idler wheel that contacts the track, and an electric motor that provides an idler torque to the at least one idler wheel. Wherein, torque is distributed to the track through both the final drive sprocket and the idler wheel.

Power distribution through undercarriage idler wheels

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

A draft sensing mechanism for a three point hitch includes a hitch frame attached to a frame of a vehicle. The hitch frame includes left and right link supports for coupling to left and right draft links and left and right draft bars. Each draft bar has a first portion attached to a corresponding one of the link supports, and a second portion positioned rearwardly and inwardly with respect to its first portion. Draft forces applied by the draft links to the link supports are transmitted to the second portions of the draft bars. A linkage unit sums the draft forces from the draft bars and includes a draft force transducer which generates a draft force signal in response to deflection of the draft bars.

Three point hitch draft sensing system

A drawbar support assembly includes a rail member attached to a hitch frame, a slider member and a drawbar support. The slider member is slidable in the rail member. The drawbar support has rollers which rollingly engage the slider member so that the drawbar is swingable laterally. The rail member includes a forwardly facing curved slot which slidably receives the tabs which project from the slider member. A spring unit is coupled between the rail member and the slider member and operates to urge the slider member to a central position relative to the rail member.

Wide swing drawbar support assembly

A draft sensing mechanism includes a draft frame adapted to be attached to a frame of a vehicle. The draft frame has left and right supports adapted to be coupled to corresponding left and right draft links. A draft strap has a left end fixed to a front side of the left support and a right end fixed to a front side of the right support. The draft strap is deflectable in response to draft forces applied to the left and right supports. A draft sensor is attached to the draft strap. The sensor generates a draft signal in response to deflection of the draft strap.

Draft force sensor assembly

The invention relates to a drawbar support assembly. There is a need for a drawbar support assembly which can adapt to different types of drawbars. An adaptable drawbar support assembly includes a generally U-shaped front support member for coupling to and supporting the front end of the drawbar. A front spacer member mounts in the front support member above or below the front end of the drawbar. A generally U-shaped rear support member couples to and supports the drawbar. A rear spacer member mounts in the rear support member below the drawbar. The rear spacer member is removable from the rear support member when the front spacer member is mounted above the front end of the drawbar. A ball coupler is attached to the rear end of the drawbar when the front spacer member is mounted above the front end of the drawbar. A clevis coupler is attached to the rear end of the drawbar when the front spacer member is mounted below the front end of the drawbar.

Adaptable drawbar support assembly

A quick coupler has a frame with a hook, and an operator movable control bar. The hook has a recess for receiving a hitch pin. A latch mechanism includes a latch, a one-piece trigger, a spring, and a stop fixed to the coupler frame. The latch is pivotally coupled to the frame and moves to open and closed positions permitting and preventing the hitch pin to move into and out of the hook recess. The trigger is pivotally coupled only to the latch and to the control bar. The trigger engages the hitch pin and moves the latch to the open position. When the hitch pin is in the hook recess, the stop engages the trigger and prevents the latch from moving to its open position. A central portion of the trigger is pivotally coupled to a central portion of the latch. A shoulder surface is formed in a lower end of the latch, and a tab projects from an end of the trigger. The tab engages the shoulder surface to limit pivoting of the latch to its open position when the trigger engages the stop. A latch spring is mounted on the latch and engages the frame and urges the latch to its closed position.

Implement quick coupler latch mechanism

A draft force sensor is provided for a coupling member coupled between a towing vehicle and a towed earth engaging implement, such as a scraper. The draft force sensor includes first and second bores extending through the coupling member. Each bore has a horizontal axis which extends perpendicular to a main fore-and-aft axis of the coupling member. The second bore is positioned above the first bore and spaced apart from the first bore. Each of the bores is surrounded by an outer cylindrical wall. Four electrical strain gauges are spaced apart and placed on the wall of each of the bores. A center line bisects an axis line which extends between the axes of the first and second bores. The axis of each bore is spaced apart from the center line by a distance which is less than a diameter of the bores. The strain gauges are connected electrically in a circuit which generates a draft force signal in response to draft forces applied to the coupling member.

Towed implement draft force sensor

A method of making an investment or lost foam casting assembly of a first part movable with respect to a second part includes making first and second separate wax or foam patterns of portions of the first part. Then, a third wax or foam pattern of the second part is made. Next, ceramic core pieces are made. At least one of the core pieces is mounted on the first pattern to form a subassembly. The subassembly is combined with the third pattern so that the core pieces maintain a separation between the third pattern and the first pattern. The first and second patterns are bonded together to trap the subassembly and to form a complete casting assembly.

Method of making a casting assembly

A draft link of an agricultural tractor three-point hitch has a recessed pocket on the inside surface thereof. The recessed pocket has a convex back wall surface with a center of curvature. A bumper is disposed in the pocket and has a concave inner surface complementary to the convex back wall surface of the pocket. The convex outer surface of the bumper is eccentric to the convex back wall surface of the pocket resulting in a wedge shaped bumper. The bumper is rotatable in the pocket about the center of curvature. The position of the bumper in the pocket determines the extent to which the eccentric outer surface projects from the pocket. This projection determines the amount of lateral sway of the draft link.

Growing community of inventors

Waterloo, IA, United States of America

Edwin Roy Kreis