公开(公告)号：US20240159023A1

公开(公告)日：2024-05-16

申请号：US18550198

申请日：2022-02-21

Applicant: KOMATSU LTD.

Inventor： Mitsuhiko KAMADO ,  Takashi SAKAI

IPC: E02F9/26 ,  E02F3/32 ,  E02F3/38 ,  G01B21/22 ,  G01C21/16

CPC classification number: E02F9/264 ,  E02F3/38 ,  G01B21/22 ,  G01C21/16 ,  E02F3/32

Abstract: A position estimating system includes a first posture detector disposed in a linkage mechanism, and a controller that estimates information regarding the position of a bucket with respect to a work machine based on data regarding a shape of a first work implement, data regarding a shape of a second work implement, information regarding a posture of the first work implement, and a value detected by the first posture detector. The second work implement includes an extension part having a first end portion connectable to the bucket and a second end portion connectable to an arm. The linkage mechanism includes a first linkage part connected to the extension part through a first coupling portion, a second linkage part connected to the first linkage part through a second coupling portion, and a third linkage part disposed closer to the second end portion than the first linkage part.