摘要:
A system and method for controlling an automatic leveling of heavy equipment. The system, in which a lower frame having a traveling unit and an upper frame are combined together by a tilting unit, includes a sensor unit, provided in the equipment, for sensing twist angles of the lower frame and the upper frame against a reference horizontal surface and a traveling speed of the equipment. A control unit receives the twist angles and the traveling speed, sets a limit of an operation time for the automatic leveling in a standstill state of the equipment while calculating a corrected angle to which a twist angle of the upper frame is to be corrected, without setting the limit of the operation time for the automatic leveling, in a traveling state of the equipment, and generates a control signal for instructing an operation of a tilting unit in accordance with the corrected angle. A driving unit performs a tilting control through the tilting unit in accordance with the received control signal.
摘要:
A leveling control system and method for heavy equipment is provided. The leveling control system for heavy equipment, in which a lower frame having a traveling means and an upper frame are combined together by a tilting means, includes a sensor unit, provided in the equipment, for measuring twist angles of the lower frame and the upper frame against a reference horizontal surface and a traveling speed of the equipment, and detecting working state information of working devices; a control unit for receiving the twist angles, the traveling speed, and the working state information, calculating a correction angle for the leveling control of the upper frame, and generating a control signal for instructing an operation of an actuator in accordance with the correction angle; and a driving unit for performing the leveling through the actuator in accordance with the control signal received therein. The control unit is provided with an auto leveling mode module for performing the leveling against a reference horizontal surface, a re-leveling mode module for performing the leveling against the reference horizontal surface in a standstill state of the equipment for a limited time, and a track leveling mode module for performing the leveling against the lower frame.
摘要:
A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mounted cylinders may be attached to the lip and may move the lip to completely cover or uncover the opening. The scraping device may have a tongue mounted to the bowl having a triangular-shaped plate mechanism that may be used to raise and to lower a cutting edge attached to the bowl. Cylinders connected to the mechanism may be retracted or extended to raise or to lower the scraping device. A load within the scraping device may be lifted by force exerted from a barrel end of a cylinder, thus utilizing a maximum potential of the cylinder.
摘要:
A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mounted cylinders may be attached to the lip and may move the lip to completely cover or uncover the opening. The scraping device may have a tongue mounted to the bowl having a triangular-shaped plate mechanism that may be used to raise and to lower a cutting edge attached to the bowl. Cylinders connected to the mechanism may be retracted or extended to raise or to lower the scraping device. A load within the scraping device may be lifted by force exerted from a barrel end of a cylinder, thus utilizing a maximum potential of the cylinder.
摘要:
A method and apparatus for providing for real time automated control of the position of a blade on a earth-moving machine. The method includes providing a geography altering machine, including a blade and a computer, the computer having stored therein a reference line and a three dimensional computer model of a desired topography, providing a user defined offset relative to the reference line, determining a blade position in local coordinates, converting the local coordinates to reference line coordinates, utilizing the reference line coordinates and the user defined offset to calculate blade movement commands, and moving the blade in a direction required by the blade movement commands.
摘要:
An apparatus and method for controlling a hydraulically operated construction machine having a plurality of tandem articulated members which move in a particular pattern, wherein movement of one of the articulated members is controlled in response to movement of a second one of the articulated members. Anticipated future movement of the second articulated member is determined and the first articulated member is controlled as a function at least of the anticipated future movement of the second articulated member. Anticipated future movement is determined by measuring actual delay between movement of the first and second articulated members. Operation of the articulated members is a function of operation of an actuator and a selectable command level.
摘要:
A cross slope level/torsion control for mobile machines is disclosed. At least two crawler tracks or four wheels or rail bogies are provided for transporting and elevating the frame with at least one crawler track or two wheels or rail bogies on a reference side of the mobile machine and at least one crawler track or two wheels or rail bogies on cross slope side of the mobile machine. At least four jacking points having variable vertical extension are placed between the crawler tracks, wheels or rail bogies and frame with two jacking points being on the reference side of the mobile machine and two jacking points being on the cross slope side of the mobile machine. The reference side of the mobile machine tracks a reference in elevation and adapts a desired reference attitude. An attitude sensor on the reference side of the mobile machine measures the actual attitude of the reference side relative to gravity. Likewise, an attitude sensor on the cross slope side of the mobile measures the actual attitude of the cross slope side relative to gravity. The relative elevation between the two jacking points on the cross slope side of the mobile machine is varied to cause the attitude of the cross slope side of the mobile machine to match the attitude of the reference side of the mobile machine. Finally, a single cross slope sensor varies the elevation of the cross slope side of the mobile machine relative to the reference side of the mobile machine.
摘要:
A method for automatically determining the productivity of an earthmoving machine in real time using an onboard computer. The earthmoving machine operates in cycles having a first portion and a second portion. The earthmoving machine moves in a first direction during the first portion and in a second direction during the second portion. The method includes the steps of detecting the starts of each cycle for a series of cycles, determining a machine parameter corresponding to each cycle, calculating a cycle parameter as a function of the machine parameter, and calculating at least one measure of productivity as a function of the cycle parameter.
摘要:
An articulated U-shaped multi-purpose vehicle particularly adapted for underground digging and hauling comprising: a digging component having a U-shaped frame having opposing sides and front ends connected by a front piece, and rear ends defining an open interior space in communication with an open front end; wheel mounts capable of pivoting attached to the opposing sides; a plurality of wheels independently suspended and rotatably attached to the wheel mounts; pivots associated with the wheel mounts to pivot and turn each wheel in a desired direction; a digging bucket and drag arm hingedly attached to the front of the frame, and a hingedly attached independent drive component with an engine and wheels to move the wheels forward and backward; and power controls mounted to the frame to selectively activate the digging and drive components to dig and haul rock, ore, and the like.
摘要:
A height-position sensing device for use with a contol circuit for controlling the height position of a blade in the case of a motor grader includes a mechanical height-position sensor and a ultrasonic height-position sensor which are connected to a common control circuit via a switch.