US 11,753,802 B2
Work machine and system including work machine
Masaki Daimon, Tokyo (JP); and Hiroyuki Aratame, Tokyo (JP)
Assigned to KOMATSU LTD., Tokyo (JP)
Appl. No. 16/962,568
Filed by KOMATSU LTD., Tokyo (JP)
PCT Filed Mar. 14, 2019, PCT No. PCT/JP2019/010484
§ 371(c)(1), (2) Date Jul. 16, 2020,
PCT Pub. No. WO2020/003637, PCT Pub. Date Jan. 2, 2020.
Claims priority of application No. 2018-124616 (JP), filed on Jun. 29, 2018.
Prior Publication US 2020/0399867 A1, Dec. 24, 2020
Int. Cl. E02F 9/26 (2006.01); E02F 9/22 (2006.01)
CPC E02F 9/264 (2013.01) [E02F 9/262 (2013.01); B60Y 2200/412 (2013.01); E02F 9/2203 (2013.01); E02F 9/2292 (2013.01)] 10 Claims
OG exemplary drawing
1. A work machine comprising:
a vehicular body;
a running wheel rotatably attached to the vehicular body;
a work implement operable with respect to the vehicular body;
an operation apparatus for operating the running wheel and the work implement; and
a controller that controls an operation by the work machine, wherein
the controller determines whether an ineffective operation in which the work implement does not work is being performed during an excavation work based on an operation command value for raising the work implement output from the operation apparatus and a speed of raising of the work implement, and when the controller determines that the ineffective operation is being performed, the controller notifies an operator of occurrence of the ineffective operation.