Work vehicle and method of controlling work vehicle

Patent metadata

Field	Value
Publication number	US-10480160-B2
Application number	US-201615540077-A
Country	US
Kind code	B2
Filing date	Nov 9, 2016
Priority date	Nov 9, 2016
Publication date	Nov 19, 2019
Grant date	Nov 19, 2019

Abstract

A main controller controlling an operation of a work vehicle includes a determination unit and an abnormal condition determination unit. The determination unit determines whether or not an attachment has a sensor based on information on an attachment. When the determination unit determines that the attachment has the sensor and when the abnormal condition determination unit cannot receive a signal from the sensor, the abnormal condition determination unit determines that an abnormal condition has occurred.

First claim

The invention claimed is:

1. A work vehicle comprising:
a vehicular main body;
a work implement attached to the vehicular main body, the work implement having a removable attachment; and
a controller controlling an operation of the work vehicle, the controller including a determination unit determining whether the attachment has a sensor based on information on the attachment stored in a storage unit, the information on the attachment including information on whether or not the attachment has the sensor, the controller further including an abnormal condition determination unit determining that an abnormal condition has occurred when the determination unit determines that the attachment has the sensor and when the abnormal condition determination unit cannot receive a signal from the sensor.

2. The work vehicle according to claim 1 , wherein
the information on the attachment includes information on a shape of the attachment.

3. The work vehicle according to claim 1 , wherein
the information on the attachment includes information on the attachment having the sensor and information on the attachment without the sensor.

4. The work vehicle according to claim 1 , wherein
the attachment is a bucket.

5. The work vehicle according to claim 4 , wherein
the work implement has a boom attached to the vehicular main body as being pivotable with respect to the vehicular main body and an arm attached to the boom as being pivotable with respect to the boom, and
the bucket is attached to the arm as being pivotable around a bucket axis defining an axis of pivot with respect to the arm and around a tilt axis orthogonal to the bucket axis.

6. The work vehicle according to claim 1 , the work vehicle further comprising a notification unit giving a notification about an abnormal condition when the abnormal condition determination unit determines that an abnormal condition has occurred.

7. A method of controlling a work vehicle, the work vehicle including a vehicular main body and a work implement attached to the vehicular main body, the work implement having a removable attachment, the method comprising:
determining whether the attachment has a sensor based on information on the attachment stored in a storage unit, the information on the attachment including information on whether or not the attachment has the sensor; and
determining that an abnormal condition has occurred when it is determined that the attachment has the sensor and when a signal from the sensor cannot be received.

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Tanishige Akira
• Kami Yoshiki
• Yokoo Takashi
• Fujii Yuto
• Nishiguchi Haruki

Classifications

• E02F9/2271

  Actuators and supports therefor and protection therefor · CPC title

• E02F3/434

  providing automatic sequences of movements, e.g. automatic dumping or loading, automatic return-to-dig · CPC title

• E02F9/264 Primary

  Sensors and their calibration for indicating the position of the work tool · CPC title

• E02F9/267

  Diagnosing or detecting failure of vehicles · CPC title

• E02F3/43

  Control of dipper or bucket position; Control of sequence of drive operations · CPC title