Patents in subclass Excavating/Condition Responsive Or Programmable Means Controls The Excavating Operation

Parent class: Excavating


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Number Patent title Issue Date
07392125 Working unit control apparatus of excavating and loading machine

The invention provides a working unit control apparatus of an excavating and loading machine which can always judge a start of an excavation control at a proper timing. The working unit control apparatus has excavating state detecting...
06/24/2008
07379806 Method of controlling travel of construction heavy equipment with electronic joysticks

Disclosed is a method for controlling travel of construction heavy equipment with electronic joysticks. The method includes the steps of; inputting a joystick travel function selection signal, first manipulation signals of the joysticks...
05/27/2008
07293376 Grading control system

A grading control system for a work machine having a work implement for grading along a grade defined by a laser plane generator is disclosed. The system includes tilt and lift actuators associated with the work implement and configured...
11/13/2007
07222444 Coordinated linkage system for a work vehicle

A work vehicle with a tool pivotally attached to a linkage, an actuator for controllably moving the tool about its pivot, and a tilt angle sensor for sensing the absolute angle of the work tool relative to the earth. A controller is...
05/29/2007
07185449 System for controlling the hydraulic actuated components of a truck

A system for controlling the hydraulically actuated components, including snow-ice control components carried by a truck. The system employs a hermetically secure composite housing mounted externally of the truck cab on the truck frame...
03/06/2007
07121355 Bulldozer autograding system

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...
10/17/2006
07093383 Automatic hydraulic load leveling system for a work vehicle

A machine has a boom, that is pivotally raised and lowered by a first cylinder, and has a load carrier that is pivoted at the end of the boom by a second cylinder. As a machine operator commands movement of the boom, the position of the...
08/22/2006
07079931 Positioning system for an excavating work machine

A system and method for determining a position of a work tool of a work machine is provided. A desired surface configuration for a geographic location is identified. A mode of operation for the work machine is selected from one of a first...
07/18/2006
07076896 Control for an operating arm of an earthmoving vehicle

An earthmoving vehicle has an operating arm that is raised and lowered by a hydraulic system. The hydraulic system includes a drain line and at least one actuator connected to the operating arm. The actuator defines a variable-volume...
07/18/2006
07069673 Hybrid construction equipment power control apparatus

Maximum charging power of a battery (63) is set by a battery-charging power setting unit (75), while maximum discharging power of the battery (63) is set by a battery-discharging power setting unit (76). Lower and upper limit of generator...
07/04/2006
07040044 Method of modulating a boom assembly to perform in a linear manner

A method of modulating a boom assembly to perform in a linear manner. The boom assembly includes a boom and a stick. The method comprising the steps of sending at least one lever signal to a control device indicative of operator desired...
05/09/2006
06980895 Electronic control system for agricultural vehicle

An electronic control system for use in an agricultural vehicle having a hitch for towing an implement. The control system controls any one or more of a plurality of sub-systems relating to the vehicle operation. The electronic control...
12/27/2005
06971195 Hydraulic circuit of excavating and slewing working vehicle

A hydraulic circuit of a excavating-and-slewing working vehicle, comprising: actuators for a boom, a bucket, slewing and an arm; directional control valves for the respective actuators; a pair of first and second hydraulic pumps for...
12/06/2005
06970801 Control system or process for the automatic control of a moveable bucket wheel device

A control system, or process for the automatic control of a moveable bucket wheel device for the reducing of a stockpile and/or for the piling up of bulk goods, whereby the bucket wheel device has a least one bucket wheel for the takeup...
11/29/2005
06968241 Device and method for controlling the position for working devices of mobile machines

The invention relates to a device for controlling the position for work devices (41) of mobile machines (40). The inventive device comprises a measuring device (1,2) for measuring an angle (.alpha.) which is formed between a level (42)...
11/22/2005
06968264 Method and system for controlling a mechanical arm

A system and method for controlling a mechanical arm comprises planning a desired path of a mechanical arm. An actual path segment of the mechanical arm is measured. An error is determined between the measured actual path segment and the...
11/22/2005
06951067 Method and apparatus for controlling positioning of an implement of a work machine

An apparatus for controllably positioning a work implement of an earth moving machine is disclosed. The work implement includes a boom and an attachment being attached thereto where the boom is actuated by a hydraulic lift cylinder and...
10/04/2005
06934616 System for determining an implement arm position

A control system for determining a position of an implement arm having a work implement is disclosed. The implement arm includes mating components connected by at least one joint. The control system includes at least one position sensor...
08/23/2005
06915600 Hydraulic circuit of excavating and slewing working vehicle

A hydraulic circuit of an excavating and slewing working vehicle of two pump system, wherein a directional control valve for slewing and a directional control valve for arm are tandem-connected to the upstream side and downstream side of...
07/12/2005
06898877 Heavy equipment safety device

A backhoe (100) has a hydraulic cylinder (316, 317) with a piston (318, 319) that rotates a rotatable boom (108). A lockable slider block (322) slides on the piston. Movement of the lockable slider block in one direction is caused by a...
05/31/2005
06895699 Heavy equipment safety device

A backhoe (100) has a hydraulic cylinder (316, 317) with a piston (318, 319) that rotates a rotatable boom (108). A lockable slider block (322) slides on the piston. Movement of the lockable slider block in one direction is caused by a...
05/24/2005
06851207 Construction machinery

First and second hydraulic pumps each adapted to operate plural actuators are activated by separate electric motors respectively. In accordance with signals provided from a controller on the basis of operations of levers, the number of...
02/08/2005
06836981 Hydraulic control circuit for boom cylinder in work machine

A hydraulic control circuit for a boom cylinder in a work machine, which, when controlling supply and discharge of pressurized oil with respect to a boom cylinder, improves fuel efficiency, work efficiency in combined operations, and...
01/04/2005
06836982 Tactile feedback system for a remotely controlled work machine

A control system for a work machine having a hydraulic actuator is provided. An input device generates a movement signal to control the movement of the hydraulic actuator. A sensor senses a parameter indicative of a magnitude of a force...
01/04/2005
RE038665 Wireless snow plow control system

A snow plowing system utilizing a wireless radio remote control to control a snow plow mounted to the front of a vehicle. The plowing system comprises a snow plow blade, mounting mechanism connected to the vehicle for mounting the snow...
12/07/2004
06820355 Hydraulic control circuit of boom cylinder in work machine

A hydraulic control circuit of a boom cylinder for a work machine, which, when controlling the supply and discharge of pressurized oil with respect to a boom cylinder, improves fuel efficiency, work efficiency in combined operations, and...
11/23/2004
06820356 Hybrid powered construction equipment

Hybrid powered construction equipment is capable of making effective use of the output energy of an engine; increasing operating speed while keeping noise level low, and assuring operation power more than the performance of the engine. To...
11/23/2004
06819993 System for estimating a linkage position

A system and method for estimating the position of a mechanical linkage is disclosed. An estimated position of a mechanical linkage is set to an initial position. The movement of the mechanical linkage is controlled based on a signal from...
11/16/2004
06739078 Machine control over the web

A system to control a piece of construction equipment or other piece of heavy equipment at a remote location via a data network in which a user provides movement instructions via a graphical user interface at a user PC to a programmable...
05/25/2004
06732458 Automatically operated shovel and stone crushing system comprising same

An automatically operated shovel, which includes a power shovel and an automatic operation controller 50 for making the power shovel reproduce a series of taught operations ranging from digging to dumping, is characterized in that the...
05/11/2004
06718245 Electronic control system for construction machinery

A system having a monitoring function in addition to a control function is able to suppress an increase in the amount of data communication and the communication frequency via a common communication line, and is flexibly adaptable for the...
04/06/2004
06701239 Method and apparatus for controlling the updating of a machine database

A method and apparatus for updating a machine database. The database includes data representing the desired and actual terrain of a work site. Additional data represents portions of the work site which have been further worked. An...
03/02/2004
06691435 Plow system including a hydraulic fluid diverter

A snow plow system for use with a skid steer loader includes a V-plow blade that is repositionable by a hydraulic actuator operated by pressurized hydraulic fluid supplied to the actuator from the auxiliary hydraulic output of the skid...
02/17/2004
06691010 Method for developing an algorithm to efficiently control an autonomous excavating linkage

The present invention is a control system for controlling movement of a work implement from a dig location to a dump location. The work implement has at least four degrees of freedom defined by a swing joint angle .theta..sub.swing, a...
02/10/2004
06633804 Skid steer vehicle with self-leveling suspension

A skid steer vehicle has a sprung suspension system including four wheels mounted on four swing arms that are pivotally coupled to the chassis of the vehicle. An electronic controller is connected both to position sensors coupled to the...
10/14/2003
06510628 Method and apparatus for determining a contact force of a work tool

A method and apparatus for determining a force of a work tool as the work tool contacts a surface. The method and apparatus includes determining at least one non-contact force exerted on the work tool, determining a calibration factor as...
01/28/2003
06493616 Diagnostic and control unit for power machine

A diagnostic and control unit allows a field technician to unlock and monitor the operation of a power machine, perform diagnostics on the power machine or modify the operating parameters of the power machine without bringing the power...
12/10/2002
06418364 Method for determining a position and heading of a work machine

A method for determining a position and a heading of a work machine having a work implement controllably attached. The method includes the steps of positioning the work machine at a desired work location, determining an initial position...
07/09/2002
06385519 System and method for automatically controlling a work implement of an earthmoving machine based on discrete values of torque

A method and system for automatically controlling a work implement of an earthmoving machine, the work implement including a bucket, to capture, lift and dump material, the bucket being controllably actuated by a hydraulic tilt cylinder...
05/07/2002
06363632 System for autonomous excavation and truck loading

In accordance with the present invention, a system to organize and coordinate components associated with earthmoving machinery capable of performing excavating and loading tasks autonomously is disclosed. The system comprises an...
04/02/2002
6336067 Electronic control system and control device for construction machine

A hydraulic excavator 1 comprises a prime mover 14, an excavating device 7, a hydraulic pump 18 rotationally driven by the prime mover, actuators 11, 12, 13 for driving the working device, and control levers 27, 27, 29 for operating...
01/01/2002
06336067 Electronic control system and control device for construction machine

A hydraulic excavator 1 comprises a prime mover 14, an excavating device 7, a hydraulic pump 18 rotationally driven by the prime mover, actuators 11, 12, 13 for driving the working device, and control levers 27, 27, 29 for operating...
01/01/2002
06330502 Method and system for selecting desired response of an electronic-controlled sub-system

A method and system for altering operating behavior of a sub-system component of a machine to suit a user's preference includes a database for storing a plurality of parameters associated with the operating behavior of the sub-system...
12/11/2001
06317669 Automatically operated shovel

An automatically operated shovel has a shovel and an automatic operation controller arranged on the shovel to store by a teaching operation plural working positions of the shovel, which comprises at least a digging position, and also to...
11/13/2001
06292729 Vehicle function management system

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...
09/18/2001
06249727 Method and apparatus for customizing and limiting operation of machine subsystems

The present method and apparatus provide a control system on a machine including an electronic controller for controlling operation of at least one subsystem, an internal data storage device containing data readable by the controller...
06/19/2001
06234254 Apparatus and method for controlling the efficiency of the work cycle associated with an earthworking machine

An apparatus for controlling the torque associated with a power train of a machine having a work implement is disclosed. A plurality of position sensors sense the position associated with the work implement and responsively produce...
05/22/2001
06205687 Method and apparatus for determining a material condition

An apparatus for determining a condition indicative of a level of difficulty of excavation of a material engaged by a work machine having a work implement. A controller receives a first signal during a dig pass of the work machine, and...
03/27/2001
06173513 Wheel loader

A wheel loader, having a higher acceleration and an energy-saving performance, as well as a higher traveling and working efficiency, includes: a traveling system, having an engine (1) as a driving power source; and a hydraulic working...
01/16/2001
6167336 Method and apparatus for determining an excavation strategy for a front-end loader

In one embodiment of the present invention, a planning apparatus and method for earthmoving operations with a front-end loader, such as loading a bucket with material and unloading the material in a receptacle, is disclosed including...
12/26/2000

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