US 11,939,012 B2
Track tension monitoring method and system
Cheol Hyun Cho, Busan (KR); and Eui Jae Cho, Busan (KR)
Assigned to DRB INDUSTRIAL CO., LTD, Busan (KR)
Appl. No. 16/480,190
Filed by DRB INDUSTRIAL CO., LTD, Busan (KR)
PCT Filed Jan. 23, 2018, PCT No. PCT/KR2018/001021
§ 371(c)(1), (2) Date Jul. 23, 2019,
PCT Pub. No. WO2018/139836, PCT Pub. Date Aug. 2, 2018.
Claims priority of application No. 10-2017-0012220 (KR), filed on Jan. 25, 2017.
Prior Publication US 2020/0140027 A1, May 7, 2020
Int. Cl. G06F 11/30 (2006.01); B62D 55/30 (2006.01); G01L 5/04 (2006.01); G01L 5/08 (2006.01); G01M 17/03 (2006.01); G07C 5/08 (2006.01); B62D 55/06 (2006.01); B62D 55/10 (2006.01)
CPC B62D 55/305 (2013.01) [G01L 5/04 (2013.01); G01L 5/08 (2013.01); G01M 17/03 (2013.01); G07C 5/0816 (2013.01); B62D 55/06 (2013.01); B62D 55/10 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A track tension monitoring method for determining whether tension of a track constituting an undercarriage module, which is an undercarriage of caterpillar track equipment, is abnormal, the method comprising:
obtaining SIP when tracks are in a still state;
entering an abnormality determination mode for determining whether the tracks are in excessive tension or low tension when the tracks are in a dynamic state;
measuring a track tension under a predetermined condition of the tracks, wherein the predetermined condition includes that the tracks make a turn, the tracks are impacted, or the caterpillar track equipment operates;
and
determining, whether track tension is abnormal based on the measured track tension,
wherein, in the abnormality determination mode, when
SIP<(LIP−1000) and SIP>(RIP−1000) or
SIP<(RIP−1000) and SIP>(LIP−1000),
it is determined that there is rotational abnormality,
where SIP is a value obtained by integrating a track tension per unit time in the still state, LIP is a value obtained by integrating a left track tension per unit time in the dynamic state, and RIP is a value obtained by integrating a right track tension per unit time in the dynamic state.