Work machine and load mass calculation method
AssigneeKomatsu Ltd.
InventorsMotoki KOYAMA, Taiki KOGA
Life of this patent
Estimating the term…
Abstract
A work machine includes a main body to which a traveling body is attached, an acceleration sensor that acquires an acceleration of the main body in a horizontal direction, a work implement including a boom attached to the main body and a bucket attached to the boom, an actuator that change an angle of the boom with respect to the main body, and a controller that operates the actuator. When it is determined that the actuator is in the stationary state, the controller calculates a load mass in the bucket, based on a posture of the work implement, the thrust of the actuator, and the acceleration.
Claims11
A work machine comprising:
- a main body to which a traveling body is attached;
- an acceleration sensor that acquires an acceleration of the main body in a horizontal direction;
- a work implement including a boom attached to the main body and a bucket attached to the boom;
- an actuator that changes an angle of the boom with respect to the main body;
- and
- a controller that operates the actuator, wherein
- when it is determined that the actuator is in a stationary state, the controller calculates a load mass in the bucket, based on a posture of the work implement, thrust of the actuator, and the acceleration.
A load mass calculation method for a self-propelled work machine, the load mass calculation method comprising:
- acquiring an acceleration of a main body of the work machine in a horizontal direction;
- detecting a posture of a work implement that is attached to the main body and includes a boom and a bucket;
- detecting thrust of an actuator that changes an angle of the boom;
- and
- calculating a load mass in the bucket by a controller, based on the posture of the work implement, the thrust of the actuator, and the acceleration when the controller determines that the actuator is in a stationary state.
Dependencies are inferred from the claim text.