| 摘要 |
PURPOSE: To control the cross slope cut by a blade by controlling a desired cross slope angle, a blade rotation angle, a steering unit rotation angle, and a blade angle as a function of a moving direction angle of a motorgrader. CONSTITUTION: When a motorgrader is operated in the crabbed steering mode, a desired cross slope angle is selected to be input to an input unit. A first angle sensor means including an angle sensor 120 detects a rotation angle R of a blade 114 to a steering unit 106, and a second angle sensor means including angle sensors 128A, 128B detects a rotation angle A of the unit 106 to a driving unit 102. A first slope sensor means including a slope sensor 130 detects a slope angle of the blade 114 to the horizontal, and a second slope sensor means including a slope sensor 134 detects the moving slope angular direction of a motorgrader 100. Further a cross slope control means executes the control to keep the cross slope angle in response to the input unit and the sensors.
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