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Document Title |
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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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7121355 |
A dozer blade control system controls the position of a bulldozer blade, maintaining the blade at a constant position as the dozer travels through a worksite. The control system monitors the angle of the dozer blade with respect to the e...
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7104340 |
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...
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6980959 |
A method and system of managing a configuration of mechanical equipment provides a structured procedure for managing information on parameters of the mechanical equipment to facilitate the maintenance of safety, legal compliance, perform...
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6971453 |
A control system controls a three point implement hitch assembly of a tractor. The three point implement hitch assembly includes an upper link and two lower links. The upper link includes an adjustable length double acting hydraulic unit...
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6971452 |
A device for controlling the position of a mountable implement relative to an implement carrier vehicle has a mountable implement ( 2, 3, 4 ) which can be moved at a predetermined height by the implement carrier 1 following the ground....
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6935434 |
A hitch control system controls a vehicle hitch to which implements can be attached. The hitch control system includes a spring-centered primary command lever which is manually moveable from a centered position to deflected positions, an...
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6749035 |
A hitch control system for a work vehicle combines a front suspension position signal, a hitch load signal and a hitch position signal to generate a valve command signal that controls hitch position so as to alleviate pitching and maximi...
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6698524 |
A hitch for coupling an implement to a utility vehicle includes adjustable length coupling elements and a pivotal coupling unit coupled thereto. A control system automatically controls the length of the coupling elements to control the d...
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6672399 |
A hydraulic fluid diverting arrangement for a utility vehicle provides additional pressurized hydraulic fluid supply to an installed backhoe attachment by diverting hydraulic fluid from the unused rockshaft or three-point hitch of the ut...
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6659192 |
A hydraulic lift device for an attaching device of a tractor which has a hydraulic pressure supply device and a hydraulic tank, comprising for each of two lower steering arms, a double acting hydraulic cylinder having a cylinder housing,...
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6578641 |
An implement/vehicle hitch system for coupling implements to a utility vehicle includes two hydraulic cylinders for adjusting the position of the implement. The hydraulic cylinders are connected to a pair of motor/pump units which cause ...
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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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6547012 |
A tractor/implement combination is controlled through the use of real-time data on the true draft force generated by engagement of an implement with the ground. A method of controlling a tractor/implement combination includes obtaining a...
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6442501 |
A method and apparatus for determining a velocity of an implement and thereby moving an implement to a desired position. A control system has input signals representative of the implement arm limit position, the implement arm actual posi...
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6412569 |
A hoe for facilitating manual intermixing of materials initially in heterogeneous phases, particularly dry concrete pre-mix and water, includes an elongated straight handle having a rear longitudinal portion adapted to be grasped within ...
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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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6269885 |
The position of the blade of a motor grader is controlled to maintain a smoothly graded surface even when the grader's front wheels travel over undulating ungraded ground. This is accomplished by sensing the degree to which the grader fr...
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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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6250396 |
A processing device for determining a position of a first member capable of movement in at least two axes. A first processing device receives a first member actual position along a first axis. The first processing device determines and t...
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6230817 |
A hitch assembly for a work vehicle includes a first draft link adapted to be pivotably coupled to the work vehicle, a second draft link adapted to be pivotably coupled to the work vehicle, a first linear actuator having a first end adap...
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6216795 |
An ultrasonic transducer position sensor for use as part of an automatic depth control system. The ultrasonic transducer position sensor works with a Console and remote Controller mounted in the tractor cab, power beyond Valving, and Dep...
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6196328 |
A drive arrangement (62) for transferring rotational motion from a pin (44) of a draft arm (14,16) of a hitch assembly (10) to a position sensor (64). The drive arrangement (62) includes a driver (68) that acts as a wear compensation mec...
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6196327 |
A system for reducing tractor pitching is disclosed, including a tractor with a hitch couplable to an implement, a force transducer that provides a force signal indicative of a force applied to the hitch by an implement, a position trans...
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6151874 |
A device for the control and adjustment of hydraulic cylinders on work attachments and assemblies of work machines, preferably self-propelled harvesting machines. Increasing the performance of harvesting machines for bringing in crops ef...
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6141612 |
An apparatus and method is disclosed for positioning a farming implement connected to a farm work vehicle controlled by an operator. The apparatus includes an actuation system for positioning the implement with respect to a reference, a ...
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6119786 |
A method and apparatus for controlling a hitch system on a work machine, the hitch system having a work implement attached. The method and apparatus includes determining at least one force applied to at least one of the work machine and ...
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6105679 |
A control system for a hitched or trailed implement coupled to a work vehicle is disclosed herein. The control system allows control to be selectively transferred between various types of implements by use of a hydraulic selector valve. ...
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6085501 |
A method and device for automatically adjusting the lightening of a working unit (U) of a machine by use of a hydraulic ram (57) associated with a hydropneumatic accumulator (67). Use is made of a second hydraulic ram (58) of which the p...
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6076612 |
A hitch assembly control system for an off-highway vehicle such as an agricultural tractor is operable in both position and draft control modes. The control system is capable of transitioning from the position mode to the draft mode, and...
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6052925 |
A method for determining the front and rear axle weights of an earth moving machine. The method includes determining the weight of a portion of the earth moving machine, and the forces acting on the lift cylinder pin, lift arm pin, and t...
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6035249 |
An improved accuracy is ensured for the calculation of the travel distance of a bulldozer by obtaining the accurate vehicle speed and travel direction of the bulldozer. To this end, arrangement is made such that a check is made to determ...
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6009354 |
A sectional rate control unit for an agricultural implement is disclosed herein. The sectional rate control unit is preferably used with a planting system including a planting implement coupled to a work vehicle. The implement includes a...
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5996703 |
Smooth, effective dumping is achieved by automating. A switching point, at which a carrying mode is switched to a dumping mode during automatic driving in a dozing operation, is set beforehand. A dumping attitude of the blade is also pre...
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5983151 |
A tractive force control apparatus and method for preventing a torque converter from being stalled while a working machine is operated during excavation and earth carrying work using a construction machine. In this apparatus, an engine r...
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5911769 |
A system for controlling wheel slippage of a vehicle carrying or trailing an implement when slip above a slip limit is detected. The implement is coupled to an implement positioning system including an actuator for raising and lowering t...
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5899279 |
A tractor electronic linkage control system comprises electronic draft force and linkage position sensors (30, 33) and manual draft force and linkage position controls (31, 32). An electronic control unit 17 derives draft and position er...
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5826666 |
The finishing precision and uniformity of hardness of a surface finished by a construction machine, such as back-hoe, is improved by modifying the targets of a position-tracking control system based on work-load applied to the end effect...
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5819190 |
A ground leveling control system for a bulldozer, comprising: (a) a cutting edge position detector for detecting a position of a cutting edge of a blade with respect to the ground; and (b) a blade controller for controlling the blade to ...
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5816335 |
A dozing system for use in a bulldozer, having the capability of estimating a loading ratio (the ratio of soil loaded on the blade to the loading capacity of the blade) with high accuracy so that a mode shift from digging to carrying can...
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5802489 |
A control system for engaging, disengaging and re-engaging a front wheel drive in an agricultural vehicle includes a control circuit configured to receive signals representative of vehicle operating parameters and to generate control sig...
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5755291 |
A system for regulating wheel slippage of a vehicle carrying or trailing an implement. The system includes sensors for sensing the vehicle's apparent speed and ground speed and an input device. The system also includes a control circuit ...
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5699248 |
A running slip control system for a bulldozer, comprising: (a) a running slip detector for detecting the running slip of a vehicle body; and (b) a blade controller for lifting a blade to eliminate the running slip when the running slip d...
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5694317 |
A blade control system for a bulldozer, comprising: (a) a pitch angle detector for detecting a pitch angle of a vehicle body when the vehicle body inclines back and forth; (b) an actual tractive force detector for detecting an actual tra...
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5682954 |
A draft control mechanism for a tractor having a three-point hitch for attachment of a ground-engaging implement. The draft control mechanism utilizes an upper link arm connected to the tractor with a single load pin which houses a strai...
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5622226 |
A method is provided for controlling the bounce of a work implement attached to a machine having an electro-hydraulic system. The method comprises the steps of sensing the operating pressure in an actuator arrangement connected between t...
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5621643 |
A dozing system for a bulldozer with which dozing can be carried out by a simple operation without giving a great deal of fatigue to the operator. When the running slip of a vehicle body is not detected by a running slip detector, a blad...
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5584347 |
An arrangement for sensing the draft force on a linkage such as a tractor three-point linkage comprises a backplate (12) with flexible webs (16) extending from it. Depending from the webs (16) are spurs (18) which, at their lower end, jo...
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5564507 |
A load control unit for a bulldozer, comprising an actual tractive force detector for detecting the actual tractive force of a vehicle body; target tractive force setting switch for setting a target tractive force for an automatic blade ...
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5535830 |
A dozing control unit for a bulldozer, comprising an actual tractive force detector for detecting the actual tractive force of a vehicle body; a driving mode selector button capable of switching a manual operation mode to an automatic dr...
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