US 12,188,200 B2
Control system and control method
Ryuta Okuwaki, Tokyo (JP); Takeshi Oi, Tokyo (JP); and Kenji Okamura, Tokyo (JP)
Assigned to KOMATSU LTD., Tokyo (JP)
Appl. No. 17/800,014
Filed by KOMATSU LTD., Tokyo (JP)
PCT Filed Apr. 16, 2021, PCT No. PCT/JP2021/015677
§ 371(c)(1), (2) Date Aug. 16, 2022,
PCT Pub. No. WO2021/210665, PCT Pub. Date Oct. 21, 2021.
Claims priority of application No. 2020-074337 (JP), filed on Apr. 17, 2020.
Prior Publication US 2023/0074375 A1, Mar. 9, 2023
Int. Cl. E02F 3/43 (2006.01); E02F 9/20 (2006.01); E02F 9/24 (2006.01); E02F 9/26 (2006.01)
CPC E02F 3/439 (2013.01) [E02F 3/437 (2013.01); E02F 9/2033 (2013.01); E02F 9/205 (2013.01); E02F 9/24 (2013.01); E02F 9/265 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A control system for a work machine that includes a work machine main body, a boom rotatably mounted to the work machine main body, an arm rotatably mounted to a tip of the boom, and a bucket rotatably mounted to a tip of the arm, the control system comprising:
an automatic control determination unit configured to determine whether to start automatic dumping control; and
a dumping control unit configured to generate a first command to rotate the bucket in a dump direction until an inclination of the bucket reaches a predetermined dumping completion angle upon determining to start the automatic dumping control, and generate a second command to rotate the boom in a raising direction during a period until the inclination of the bucket reaches the dumping completion angle from an inclination at the time of start of the automatic dumping control.