US 11,993,923 B2
System and method for controlling work machine
Yukihisa Takaoka, Tokyo (JP); Kota Beppu, Tokyo (JP); Yuto Fujii, Tokyo (JP); and Toru Kurakane, Tokyo (JP)
Assigned to KOMATSU LTD., Tokyo (JP)
Appl. No. 17/598,958
Filed by KOMATSU LTD., Tokyo (JP)
PCT Filed May 20, 2020, PCT No. PCT/JP2020/019866
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/255608, PCT Pub. Date Dec. 24, 2020.
Claims priority of application No. 2019-113984 (JP), filed on Jun. 19, 2019.
Prior Publication US 2022/0195703 A1, Jun. 23, 2022
Int. Cl. E02F 9/26 (2006.01); E02F 3/84 (2006.01); E02F 9/22 (2006.01)
CPC E02F 9/262 (2013.01) [E02F 9/265 (2013.01); E02F 3/844 (2013.01); E02F 9/2228 (2013.01); E02F 9/2267 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A system for controlling a work machine including a work implement, the system comprising:
a controller configured to
acquire a position of an excavation end by the work machine, a target soil amount, and an excavation distance,
determine a target excavation depth of a first pass based on the position of the excavation end, the target soil amount, and the excavation distance,
move the work implement to the target excavation depth of the first pass to execute an excavation of the first pass,
acquire an actual soil amount excavated in the first pass,
modify the target soil amount based on the actual soil amount,
determine the target excavation depth of a second pass based on the modified target soil amount, and
move the work implement to the target excavation depth of the second pass to execute the excavation of the second pass.