公开(公告)号：US20220236100A1

公开(公告)日：2022-07-28

申请号：US17596001

申请日：2020-06-03

Applicant: EPIROC ROCK DRILLS AKTIEBOLAG

Inventor： Robert PETTERSSON ,  Erik JAKOBSSON

IPC: G01G19/08 ,  G07C5/08 ,  E21F13/02 ,  G01L1/22

Abstract: A method for estimating a level of stress that a mine truck is subjected to. The mine truck includes a frame; a container for carrying payload supported by the frame; and at least one sensor, the at least one sensor delivering signals being dependent on a force acting on the mine truck. The method includes for at least a first position of the frame, estimating a level of stress that said at least a first position is subjected to in response to a force acting on the mine truck, wherein said at least a first position is a position being different from the position of said at least one sensor; and estimating said level of stress utilising a model representation of the level of stress for said at least a first position wherein said model representation output said estimated level of stress utilising sensor signals from said at least one sensor as input signals.