Earth working – Automatic power control
Reexamination Certificate
2011-08-16
2011-08-16
Pezzuto, Robert (Department: 3671)
Earth working
Automatic power control
C477S097000
Reexamination Certificate
active
07997350
ABSTRACT:
In a motor grader, when a cylinder hydraulic pressure detected by a cylinder-hydraulic-pressure-detecting section is less than a predetermined threshold value, a control section makes a determination that the motor grader is in a running state and uses a running-hydraulic-pressure waveform corresponding to the running state to control the hydraulic pressure supplied to a clutch. When the cylinder hydraulic pressure is greater than or equal to the threshold value, the control section makes a determination that the motor grader is in a working state and uses a working-hydraulic-pressure waveform corresponding to the working state to control the hydraulic pressure supplied to the clutch.
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Aida Michihiro
Shiohara Masaki
Global IP Counselors
Komatsu Ltd.
McGowan Jamie L
Pezzuto Robert
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