Work machine, system, and method of controlling work machine
AssigneeKomatsu Ltd.
InventorsToshiaki KUMAGAI, Kensuke FUJII
Life of this patent
Estimating the term…
Abstract
A payload calculation value (CalcuPayload) of a load within a bucket is calculated based on load of a boom cylinder. An amount of change per unit time in information on at least one of an operation command value for operating the boom cylinder and a speed of extension and contraction of the boom cylinder is sensed. A payload value is determined by correcting based on the amount of change per unit time, the payload calculation value (CalcuPayload) obtained by calculation.
Claims6
A work machine comprising:
- a boom;
- an arm attached to a tip end of the boom;
- a bucket attached to a tip end of the arm;
- a boom cylinder that drives the boom;
- and
- a controller that calculates a payload calculation value of a load within the bucket based on load of the boom cylinder, detects an amount of change per unit time in information on at least one of an operation command value for operating the boom cylinder and a speed of extension and contraction of the boom cylinder, and determines a payload value by correcting based on the amount of change per unit time, the payload calculation value obtained by calculation.
A system comprising:
- a work machine including a boom, an arm attached to a tip end of the boom, a bucket attached to a tip end of the arm, and a boom cylinder that drives the boom;
- and
- a controller that obtains an amount of change per unit time in information on at least one of an operation command value for operating the boom cylinder and a speed of extension and contraction of the boom cylinder, calculates a payload calculation value of a load within the bucket based on load of the boom cylinder, and determines a payload value by correcting based on the amount of change per unit time, the payload calculation value obtained by calculation.
A method of controlling a work machine, the work machine including a boom, an arm attached to a tip end of the boom, a bucket attached to a tip end of the arm, and a boom cylinder that drives the boom, the method comprising:
- calculating a payload calculation value of a load within the bucket based on load of the boom cylinder;
- and
- obtaining an amount of change per unit time in information on at least one of an operation command value for operating the boom cylinder and a speed of extension and contraction of the boom cylinder and determining a payload value by correcting based on the amount of change per unit time, the payload calculation value obtained by calculation.
Dependencies are inferred from the claim text.