Motor grader and method of controlling motor grader
AssigneeKomatsu Ltd.
InventorTakeshi Kamimae
Life of this patent
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Abstract
A motor grader includes an operation apparatus, a front frame, a draw bar swingably attached to the front frame, a first actuator attached to the draw bar, the first actuator moving the draw bar in a lateral direction with respect to the front frame, a second actuator attached to the draw bar, the second actuator moving the draw bar in a direction toward the front frame and a direction away from the front frame, and a controller that causes the first actuator and the second actuator to operate. The controller causes the first actuator and the second actuator to operate based on an operation signal received from the operation apparatus such that a position of the draw bar with respect to the front frame comes closer to a neutral position of the draw bar with respect to the front frame.
Claims16
A motor grader comprising:
- a front frame;
- a draw bar swingably attached to the front frame;
- a first actuator attached to the draw bar, the first actuator moving the draw bar in a lateral direction with respect to the front frame;
- a second actuator attached to the draw bar, the second actuator moving the draw bar in a direction toward the front frame and a direction away from the front frame;
- a controller that causes the first actuator and the second actuator to operate;
- and
- an operation apparatus that transmits an operation signal to the controller, when accepting an operation, wherein
- the controller
- causes, when receiving the operation signal, the first actuator and the second actuator to start operating such that a position of the draw bar with respect to the front frame comes closer to a neutral position of the draw bar with respect to the front frame, and
- causes, when determining that the position of the draw bar has reached the neutral position, the first actuator and the second actuator to stop operating.
A method of controlling a motor grader, the motor grader including a draw bar swingably attached to a front frame, a first actuator attached to the draw bar, the first actuator moving the draw bar in a lateral direction with respect to the front frame, and a second actuator attached to the draw bar, the second actuator moving the draw bar in a direction toward the front frame, a direction away from the front frame, and an operation apparatus that transmits an operation signal to the controller, when accepting an operation, the method comprising:
- causing, when receiving the operation signal, the first actuator and the second actuator to start operating such that a position of the draw bar with respect to the front frame comes closer to a neutral position of the draw bar with respect to the front frame, and
- causing, when determining that the position of the draw bar has reached the neutral position, the first actuator and the second actuator to stop operating.
Dependencies are inferred from the claim text.