Patent ID: 11891780
Assignee: KUBOTA CORPORATION
Field: Civil engineering (Other fields)
Classification: CPC E  F  B | IPC E  F

Claim 19:
20. The working machine according to claim 19, wherein
the controller is configured or programmed to selectively perform either automatic acceleration to automatically increase the rotation speed of the traveling motor when a predetermined acceleration condition is satisfied or manual acceleration to increase the rotation speed of the traveling motor according to the speed-shift command issued by the speed-shift switch,
the controller, when performing each of the automatic acceleration and the manual acceleration, is configured or programmed to change the control value of the second control signal input to the proportional solenoid valve serving as the traveling change-over valve so as to shift the traveling change-over valve into a state to increase the rotation speed of the traveling motor,
the controller is configured or programmed to change the value of the second change rate as the control parameter and the length of the shifting period as the control parameter in each of the automatic acceleration and the manual acceleration, and
the controller is configured or programmed so that
the second change rate of changing the control value of the second control signal when performing the automatic deceleration is greater than the second change rate of changing the control value of the second control signal when performing the manual deceleration, or the second change rate of changing the control value of the second control signal when performing the automatic acceleration is greater than the second change rate of changing the control value of the second control signal when performing the manual acceleration, and
the shifting period when performing the automatic speed-shift is shorter than the shifting period when performing the manual speed-shift.