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US 11,536,008 B2Granted
Work vehicle, system including work vehicle, and load weight calculation method for work vehicle
AssigneeKomatsu Ltd.
InventorMasaki Daimon
Life of this patent
Estimating the term…
Abstract
A first processor determines a loaded state of a bucket, makes a determination that a traveling apparatus has performed an operation for shifting from a rearward movement state to a state (forward movement or stop) other than the rearward movement state in the loaded state, and calculates a load weight of the bucket from a detection value of a work implement sensor (first hydraulic pressure detectors and a first angle detector) based on the determination.
Claims11
A work vehicle comprising:
- a vehicular body;
- a boom;
- a boom cylinder coupled to the boom and that drives the boom;
- a work implement attached to the vehicular body and including a bucket;
- a traveling apparatus attached to the vehicular body and causing the vehicular body to travel;
- a work implement sensor that senses a state of the work implement, the work implement sensor including i) a pressure sensor that detects a pressure of the boom cylinder, and ii) an angle sensor that detects an angle of the boom;
- a traveling sensor that senses a traveling state of the traveling apparatus;
- and
- a controller that determines a loaded state of the bucket, wherein when the traveling sensors senses that the traveling apparatus shifts from a rearward movement state to a state other than the rearward movement state in the loaded state, the controller calculates a load weight of the bucket based on the detected pressure of the boom cylinder and the detect angle of the boom.
6 more elements
A system including a work vehicle, the system comprising:
- a vehicular body;
- a boom;
- a boom cylinder coupled to the boom and that drives the boom;
- a work implement attached to the vehicular body and including a bucket;
- a traveling apparatus attached to the vehicular body and causing the vehicular body to travel;
- a work implement sensor that senses a state of the work implement, the work implement sensor including i) a pressure sensor that detects a pressure of the boom cylinder, and ii) an angle sensor that detects an angle of the boom;
- a traveling sensor that senses a traveling state of the traveling apparatus;
- and
- a controller that determines a loaded state of the bucket, wherein when the traveling sensor senses that the traveling apparatus shifts from a rearward movement state to a state other than the rearward movement state in the loaded state, the controller calculates a load weight of the bucket based on the detected pressure of the boom cylinder and the detect angle of the boom.
6 more elements
A load weight calculation method for a work vehicle, the work vehicle comprising:
- a vehicular body;
- a boom;
- a boom cylinder coupled to the boom and that drives the boom;
- a work implement attached to the vehicular body and including a bucket;
- a traveling apparatus attached to the vehicular body and causing the vehicular body to travel;
- a work implement sensor that senses a state of the work implement, the work implement sensor including i) a pressure sensor that detects a pressure of the boom cylinder, and ii) an angle sensor that detects an angle of the boom;
- and a traveling sensor that senses a traveling state of the traveling apparatus, the method comprising:
- determining a loaded state of the bucket;
- and
- when the traveling sensor senses that the traveling apparatus shifts from a rearward movement state to a state other than the rearward movement state in the loaded state, calculating a load weight of the bucket based on the detected pressure of the boom cylinder and the detect angle of the boom.
7 more elements
Dependencies are inferred from the claim text.