摘要:
A controller of a construction machine includes a target command value computing unit generating a speed target command value for normal motion of a working equipment based on a manipulating signal, a target command value correcting unit correcting the command value, and a command signal output unit outputting a command signal to a driving device based on the corrected speed target command value. The target command value correcting unit includes a vibration suppressing unit generating a speed target command value for vibration suppression to suppress generation of vibrations in the working equipment based on the command value, a peak value recognizing unit recognizing a peak value of the command value based on the command value sequentially generated by the target command value computing unit, and a target command value compositing unit compositing the command values according to the peak value to correct the command value.
摘要:
A controller constituting a construction machine includes: a target value computing unit that generates a speed target value of a boom based on a lever manipulating signal; a target value correcting unit that corrects the speed target value; and a command signal output unit that outputs a command signal to a boom driving device based on the corrected speed target value. The target value correcting unit includes: a motion information acquiring unit that acquires motion information on a motion of an arm; a maximum value determining unit that determines based on the motion information a maximum correction value for reducing suppression of a floating motion by a floating motion suppressing unit as the motion of the arm becomes faster; and a correction value regulating unit that corrects the speed target value based on the maximum correction value.
摘要:
A construction machine includes: a working equipment; a manipulating unit that manipulates the working equipment; and a controller that controls the working equipment. The controller includes: a rolling compaction determining unit that determines whether or not the working equipment is under a rolling compaction operation for hardening earth and sand through reciprocation; and a command output regulating unit that controls the working equipment so that a motion speed of the working equipment does not exceed a predetermined maximum value when the rolling compaction determining unit determines that the working equipment is under the rolling compaction operation.
摘要:
A construction machine includes: a working equipment; a manipulating unit that manipulates the working equipment; and a controller that controls the working equipment. The controller includes: a rolling compaction determining unit that determines whether or not the working equipment is under a rolling compaction operation for hardening earth and sand through reciprocation; and a command output regulating unit that controls the working equipment so that a motion speed of the working equipment does not exceed a predetermined maximum value when the rolling compaction determining unit determines that the working equipment is under the rolling compaction operation.
摘要:
A controller of a construction machine includes a target command value computing unit generating a speed target command value for normal motion of a working equipment based on a manipulating signal, a target command value correcting unit correcting the command value, and a command signal output unit outputting a command signal to a driving device based on the corrected speed target command value. The target command value correcting unit includes a vibration suppressing unit generating a speed target command value for vibration suppression to suppress generation of vibrations in the working equipment based on the command value, a peak value recognizing unit recognizing a peak value of the command value based on the command value sequentially generated by the target command value computing unit, and a target command value compositing unit compositing the command values according to the peak value to correct the command value.
摘要:
A controller constituting a construction machine includes: a target value computing unit that generates a speed target value of a boom based on a lever manipulating signal; a target value correcting unit that corrects the speed target value; and a command signal output unit that outputs a command signal to a boom driving device based on the corrected speed target value. The target value correcting unit includes: a motion information acquiring unit that acquires motion information on a motion of an arm; a maximum value determining unit that determines based on the motion information a maximum correction value for reducing suppression of a floating motion by a floating motion suppressing unit as the motion of the arm becomes faster; and a correction value regulating unit that corrects the speed target value based on the maximum correction value.
摘要:
A first target engine speed is set in response to a command value commanded by a command unit and a second target engine speed lower than the first target engine speed is set based on the first target engine speed. A reduction range from the first target engine speed to the second target engine speed is set according to a type of a hydraulic actuator operated by an operation lever or a combination of plural hydraulic actuators operated by an operation lever.
摘要:
The system includes: a variable displacement hydraulic pump supplying pressure oil to a hydraulic actuator; a pressure detector detecting a pump discharge pressure from the hydraulic pump; a control valve controlling a supply of the pressure oil to the hydraulic actuator; a controller controlling a pump displacement of the hydraulic pump; a hydraulic motor rotating an upper structure of the construction machine; a swing relief valve defining a relief pressure of the hydraulic motor; and a control lever switching a control valve for the hydraulic motor. The controller includes: an adjuster that, when a pump discharge pressure detected by the pressure detector exceeds a first set value, conducts an adjustment to reduce the pump displacement; and a canceller that cancels the adjustment when the pump discharge pressure falls below a second set value. The second set value is equal to or larger than the first set value.
摘要:
The system includes: a variable displacement hydraulic pump supplying pressure oil to a hydraulic actuator; a pressure detector detecting a pump discharge pressure from the hydraulic pump; a control valve controlling a supply of the pressure oil to the hydraulic actuator; a controller controlling a pump displacement of the hydraulic pump; a hydraulic motor rotating an upper structure of the construction machine; a swing relief valve defining a relief pressure of the hydraulic motor; and a control lever switching a control valve for the hydraulic motor. The controller includes: an adjuster that, when a pump discharge pressure detected by the pressure detector exceeds a first set value, conducts an adjustment to reduce the pump displacement; and a canceller that cancels the adjustment when the pump discharge pressure falls below a second set value. The second set value is equal to or larger than the first set value.
摘要:
An IC package processing and measuring system comprises: a processing and measuring device that executes processing or measurement on a prescribed number of IC packages juxtaposed in a prescribed area; a feed device that feeds IC packages into the prescribed area, a prescribed number at a time, by feeding with a prescribed feed pitch an IC package support on which are loaded a plurality of juxtaposed IC packages; and a control device that controls the processing and measuring device and feed device. The control device comprises position calculating means that uses shape data of the IC package and IC package support to calculate target positions of processing and measurement of the IC packages in the prescribed area and outputs the calculated position data to the processing and measuring device. The processing and measuring device comprises processing and measuring means that uses the target position data that were input from the position calculating means to execute processing or measurement on the IC packages that were fed into the prescribed area. Thus improvement of the operability and shortening of the operating time are attained.