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Document Title |
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7451029 |
A work vehicle has a transmission controller that is configured to determine the direction of travel of the vehicle based upon the state of the transmission. The transmission controller is also configured to communicate this information ...
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7356397 |
A work vehicle comprising a motor, a drive unit for driving a ground engaging portion, a torque converter for variably transferring power from the motor to the ground engaging portion, a lubrication circuit for providing lubrication flui...
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7283903 |
A system for reliably enabling an implement controller for a work vehicle having a swivel seat with at least two angular positions. The system includes an implement controller for controlling a work implement, seat position detector for ...
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7260476 |
A shock resistant device. A printed circuit board comprising electronics and a frequency reference is rigidly mounted to a central support member. The electronics can be mounted to both surfaces of the printed circuit board. The central ...
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7174966 |
A process of setting the length of an upper steering arm of an attaching device of a tractor. The attaching device includes the upper steering arm with a power drive provided for length setting purposes; a length sensor to determine the ...
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6996464 |
The present invention provides a method and apparatus for automatically limiting the ground speed of a work machine. The work machine is adapted to move about the ground of a work site. An electronic site map having at least one speed re...
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6584390 |
A system for measuring the amount of crop material located on a field to be harvested uses a scanning laser device. The scanning laser device has a transmitter for emitting electromagnetic radiation, a receiver for receiving reflected ra...
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6553302 |
A work vehicle such as an agricultural tractor includes means for the operator to select between manual or automatic engine speed control and to select among multiple automatic modes each having a different amount by which the engine spe...
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6332103 |
An apparatus and method for a pitch state estimator is provided. The pitch state estimator generates a pitch state signal for establishing the orientation used in the control of a ground-traversing vehicle. The vehicle has a support for ...
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6292729 |
A tractor includes various actuators or functions, such as a powershift transmission, a hitch and hitch control system, a PTO, a plurality of selective control valves, etc., all controlled by one or more control units in response to sens...
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6282463 |
A method of selecting pneumatic devices that satisfy specified load, speed and strength conditions to construct a pneumatic system. Data concerning pneumatic actuators, solenoid-controlled selector valves, drive controllers, pipes, pipe ...
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6256566 |
A lift vehicle and a method for initializing a controller for controlling a lifting mechanism of lift vehicle. The controller controls the maximum forward tilt angle of a mast by controlling a solenoid of a hydraulic circuit. The control...
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6253136 |
The present invention provides a method and apparatus for controlling a work implement in order to enable an earth moving machine to move to a service area after a failure within an implement control system occurs. The method includes th...
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6205384 |
A system is described for setting a self-propelled harvesting machine having several machine components with respectively adjustable parameters wherein setting of these parameters takes into account external harvesting conditions. Means ...
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6181999 |
A dozing system for a bulldozer capable of providing high operational efficiency in dozing operation and a smooth excavation face. If it is determined when operation is performed in an automatic digging mode that the load exerted on the ...
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6148254 |
An apparatus and method for controlling the clamping forces on an object being held between a bucket and a thumb of a work machine is disclosed. The apparatus and method controls the head and rod end pressures of the bucket and thumb hyd...
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6131062 |
An apparatus and method is disclosed for preventing the performance of an automatic sequence of operations of a work vehicle. The apparatus is a system that includes a databus, a plurality of input devices, a primary control unit coupled...
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6128563 |
An electronic control device for management of the steering in earth-moving machines, essentially comprises a programmable logic electronic control unit (1) which is arranged as an interface between a pushbutton console (2) for setting a...
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6112145 |
A blade control system is configured to control the spatial orientation of an earthmoving blade mounted on a frame of an earthmoving machine for working a surface of earth to a desired shape. The blade slope angle required to maintain a ...
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6112139 |
An apparatus and method is disclosed for wireless remote control of an output element coupled to a work vehicle. The output element performs work external to the vehicle and is actuated by an actuator controlled by an output controller i...
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6088621 |
An irrigation control system including an irrigation controller, a portable data shuttle, and a personal computer. The user creates a watering program comprising watering schedules by using a graphical user-friendly interface of the pers...
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5961573 |
A farming system which identifies the boundaries of agricultural fields and performs functions based upon whether a vehicle is located within a particular field is disclosed. The system includes a location signal generation circuit which...
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5897600 |
A universal modular control system for controlling a mobile material distribution apparatus is disclosed. The universal modular control system is adaptable for use with any of a plurality of distribution apparatus. It includes a control ...
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5884204 |
A system for reducing oscillations of an implement carried by a vehicle in a lifted position during travel. The implement is coupled to an implement positioning system including an actuator for raising and lowering the implement in respo...
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5733059 |
An apparatus (10) for coupling a cutting tool (12) to a vehicle (14) such as a tractor that permits the cutting tool (12) to pivot to a released position when it contacts an obstruction (38) and that returns the cutting tool (12) to its ...
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5515927 |
A control unit for controlling load on a bulldozer in the case of manual intervention, comprising: an actual tractive force detector for detecting the actual tractive force of a vehicle body; a target tractive force setting device for se...
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5454432 |
An implement control system includes desired draft force setting apparatus and draft force sensing apparatus providing a draft force signal. It also includes engine speed sensing apparatus arranged to provide an engine speed signal of th...
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4817726 |
A control system for the hitch of a tractor includes a motor for moving the mechanical control linkages connected to a hitch control valve, the motor being in the form of an electric motor. The motor is controlled by way of an electrical...
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4809785 |
An electro-hydraulic arrangement regulating the lifting mechanism actuatable by a hydraulic motor, on an agricultural working vehicle having a driven wheel, comprises a plurality of sensors including a position sensor forming an actual v...
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4713981 |
A remote actuating mechanism, in particular for actuating a control lever of a three-point implement hitch, has a transmission unit with a slide which is movable longitudinally by means of a swingable driver. The driver can be held in an...
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4677542 |
A hitch control system generates a rockshaft valve control signal as a function of sensed draft force, rockshaft position and operator input. Periodically, an auxiliary or disturbance signal of certain amplitude, frequency and duration i...
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4622803 |
The hydraulic circuit of the present invention allows flotation of the header without extensive use of accumulators and is readily adaptable to present open center hydraulic systems. The present invention is also adaptable to closed cent...
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4601346 |
A unit for raising and lowering an agricultural implement, which unit is connected to a tractor. The unit includes an attachment device (6) for attaching the implement to the tractor, a raising and lowering device (2, 5) for raising and ...
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4549610 |
An agricultural tractor having six wheels which are each hydraulically drivable by individual hydraulic motors through hydraulic fluid supplied by respective hydraulic pumps. With each pump driving only one wheel, skidding of a wheel doe...
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4537260 |
An apparatus for a tractor having a rear and front implement attachment mechanism. Each such mechanism has a hydraulic power lift which acts on it. The power lifts have in common a regulator and control device with a changeover valve. By...
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4518044 |
A tractor includes a hitch for pulling a ground-engaging implement. A hydraulic cylinder is extendable and retractable to lower and raise the implement. A control system senses operating parameters, including wheel slip, engine speed, dr...
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4503916 |
A conventional non-electrical draft/position responsive hitch control system is modified to respond to an electrical control signal derived from sensed engine droop and wheel slip.
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4438818 |
A draft control system of the type in which a mechanical spring is employed to balance the draft forces of an implement trailed behind the tractor so as to correct the working depth of the implement in accordance with changes in draft fo...
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4343365 |
A control system for a tractor hydraulical power lift system having an electrohydraulic actuator (22) coupled to a main hydraulic valve (21), comprising a feedback electronic control circuit including a circuit for mathematically combini...
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4253331 |
This lower link for a three-bar hitch provides a practical way to determine the tension force present in a lower link independent of any bending or other loadings. The link is formed of two bars which are bent out from each other to an i...
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4132273 |
A control system is provided for a hydraulically operated tractor hitch assembly including a rockshaft operated by a main cylinder which is controlled through a spool valve operated by a pilot cylinder which is controlled, in turn, throu...
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4132272 |
A control system is provided for a hydraulically operated tractor hitch assembly including a rockshaft operated by a main cylinder which is controlled through a spool valve operated by a pilot cylinder which is controlled, in turn, throu...
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4108248 |
An improved draft and position control system for a tractor. Independent manually operable draft and position controls are provided for establishing a desired draft and/or position of an implement drawn by a tractor. The position control...
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4091877 |
A subassembly for use in a position in draft control linkage for operation by cables connected to position and draft control levers. The subassembly includes a mechanical hydraulic valve operating linkage and a position and draft load an...
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4085806 |
Hydraulic control system including a bypass provided in an intermediate portion of an oil passage extending from a position control valve to a hydraulic actuator for raising and lowering a working implement. A draft control valve dispose...
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4084641 |
Adjustable mixed automatic height and draft control apparatus for a tractor power lift mechanism includes a height control rocker actuated by the tractor's rockshaft, a draft control rocker actuated by the tractor's hitch linkage, and a ...
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4064945 |
An electronic control system for controlling the depth of a vehicle drawn implement as a function of a plurality of sensed variables including a plurality of transducers one for sensing the value of each of the variables, and an electron...
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4031964 |
An automatic control system for a ripper used on a construction equipment in which a load detector is provided on the ripper for detecting load acting on the ripper shank and lift cylinders are actuated to automatically raise the shank w...
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4023622 |
A hydrostatic drive tractor having a hydraulically lowerable and raisable hitch to lower and raise an associated implement to respectively increase or decrease draft load includes a draft control system sensing increases and decreases in...
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3995696 |
A sensor for measuring the load exerted on a member includes two spaced apart, aligned stationary capacitor plates and a movable capacitor plate disposed intermediate the two stationary plates and spaced therefrom to form two air dielect...
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