	US 12,313,016 B2
	Stop system for engine of work machine, and stop method for engine of work machine
Hayato Matsumoto, Tokyo (JP); Shunsuke Sugimura, Tokyo (JP); Takehiro Shibata, Tokyo (JP); Tomofumi Hokari, Tokyo (JP); Yuichiro Yasuda, Tokyo (JP); Kenji Nozaki, Tokyo (JP); Tomotaka Komatsu, Tokyo (JP); Yosuke Yamagoe, Tokyo (JP); Ryohei Kikuzawa, Tokyo (JP); and Kengo Yamamoto, Tokyo (JP)
Assigned to KOMATSU LTD., Tokyo (JP)
Appl. No. 18/688,854
Filed by KOMATSU LTD., Tokyo (JP)
PCT Filed Sep. 22, 2022, PCT No. PCT/JP2022/035394 § 371(c)(1), (2) Date Mar. 4, 2024, PCT Pub. No. WO2023/054171, PCT Pub. Date Apr. 6, 2023.
Claims priority of application No. 2021-161083 (JP), filed on Sep. 30, 2021.
Prior Publication US 2024/0369026 A1, Nov. 7, 2024
Int. Cl. F02D 41/04 (2006.01); F02D 17/04 (2006.01)

CPC F02D 41/042 (2013.01) [F02D 17/04 (2013.01)]

8 Claims

1. A stop system for an engine of a work machine, the stop system comprising:

a controller including a processor,

the controller being configured to, in a case in which there is a stop instruction that instructs to stop the engine of the work machine,

perform delayed stop control to delay the stop of the engine until a

predetermined condition is established, and

then stop the engine; and

the controller being further configured to, in a case in which there is a cancellation instruction to cancel the stop instruction,

suspend the delayed stop control when work equipment of the work machine is in a locked state, and

continue to perform the delayed stop control regardless of the cancellation instruction when the work equipment is in an unlocked state.