US 12,215,998 B2
Method and system for controlling a mining and/or construction machine
Robert Pettersson, Kumla (SE); and Erik Jakobsson, Vintrosa (SE)
Assigned to EPIROC ROCK DRILLS AKTIEBOLAG, Örebro (SE)
Appl. No. 17/596,001
Filed by EPIROC ROCK DRILLS AKTIEBOLAG, Orebro (SE)
PCT Filed Jun. 3, 2020, PCT No. PCT/SE2020/050560
§ 371(c)(1), (2) Date Dec. 1, 2021,
PCT Pub. No. WO2020/246933, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 1950660-9 (SE), filed on Jun. 4, 2019.
Prior Publication US 2022/0236100 A1, Jul. 28, 2022
Int. Cl. G01G 19/00 (2006.01); E21F 13/00 (2006.01); E21F 13/02 (2006.01); G01G 19/08 (2006.01); G01L 1/22 (2006.01); G07C 5/08 (2006.01)
CPC G01G 19/08 (2013.01) [E21F 13/025 (2013.01); G01L 1/22 (2013.01); G07C 5/0808 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for estimating a level of stress that a mine truck is subjected to, the mine truck comprising:
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 comprising:
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;
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, and
utilising different model representations for different positions of the frame of the mine truck, different states of operation of the mine truck, and different levels of load.