Patent ID: 11952749
Assignee: KOMATSU LTD.
Field: Civil engineering (Other fields)
Classification: CPC E  F  B | IPC E  F

Claim 5:
6. A control method for a power machine including
a drive source,
a traveling device driven by a driving force of the drive source,
a hydraulic pump driven by the driving force of the drive source,
a power take off device configured to transmit a portion of the driving force of the drive source to the hydraulic pump,
a power transmission device including a hydrostatic continuously variable transmission, an input shaft connected to the power take off device, and an output shaft connected to the traveling device, and transmitting the driving force input to the input shaft to the output shaft, and
an operation device for providing an instruction regarding a magnitude of the driving force of the drive source,, the control method comprising:
specifying a target circuit pressure of the hydrostatic continuously variable transmission;
acquiring an actual circuit pressure of the hydrostatic continuously variable transmission;
determining a brake torque based on the target circuit pressure and the actual circuit pressure, the brake torque being a torque consumed by the hydraulic pump; and
controlling the hydraulic pump based on the brake torque.