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US 11,697,916 B2Granted
Excavator and method of controlling the same
AssigneeSumitomo Heavy Industries, Ltd.
InventorJunichi Okada
Life of this patent
Estimating the term…
Abstract
An attachment is attached to an upper turning body. During a normal operation, a drive means drives the attachment according to an input of an operator to a manipulation device. A sensor detects a motion of an excavator. Based on an output of the sensor, the slip suppression unit detects slip of a traveling body in an extension direction of the attachment and corrects an operation of the attachment performed by the drive means.
Claims6
An excavator, comprising:
- an undercarriage;
- a rotating platform rotatably provided on the undercarriage;
- an attachment being attached to the rotating platform;
- a turning hydraulic motor for driving the rotating platform;
- an actuator for driving the attachment;
- and
- a sensor for detecting motion of the excavator, wherein the sensor is adaptive to detect the slip of the undercarriage when the actuator operates;
- and
- a slip suppression unit for, based on output from the sensor, suppressing the slip of the undercarriage.
6 more elements
A method of controlling an excavator having an actuator for driving an attachment and a turning hydraulic motor, the method comprising:
- a sensor detecting the slip of an undercarriage when the actuator operates;
- and
- a step of suppressing the slip of the undercarriage based on an output from the sensor.
An excavator, comprising:
- an undercarriage;
- a rotating platform rotatably provided on the undercarriage;
- an attachment attached to the rotating platform;
- a turning hydraulic motor for driving the rotating platform;
- an actuator for driving the attachment;
- and
- a sensor for detecting motion of the excavator during excavation work performed by the actuator driving the attachment;
- and
- a control device configured to detect a displacement of the undercarriage during the excavation work performed by the actuator driving the attachment based on an output of the sensor and to suppress slip of the undercarriage.
6 more elements
Dependencies are inferred from the claim text.