Patent ID: 11952745
Assignee: KOMATSU LTD.
Field: Civil engineering (Other fields)
Classification: CPC E  F | IPC E  F

Claim 4:
5. The control device according to claim 4, wherein
the loading machine further includes
an actuator that actuates the work equipment,
a work equipment-side flow rate control valve that controls a flow rate of operating oil flowing through the actuator, and
a swing-side flow rate control valve that controls a flow rate of operating oil flowing through the swing motor,

the pump includes
a first pump connected only to the work equipment-side flow rate control valve, and
a second pump connected to the swing-side flow rate control valve and the work equipment-side flow rate control valve, and

the work equipment speed estimation unit estimates the speed of the work equipment when the swing body is swinging, based on a discharge flow rate of the first pump.