WO2020158331A1 - 建設機械の制御システム、及び建設機械の制御方法 - Google Patents
建設機械の制御システム、及び建設機械の制御方法 Download PDFInfo
- Publication number
- WO2020158331A1 WO2020158331A1 PCT/JP2020/000524 JP2020000524W WO2020158331A1 WO 2020158331 A1 WO2020158331 A1 WO 2020158331A1 JP 2020000524 W JP2020000524 W JP 2020000524W WO 2020158331 A1 WO2020158331 A1 WO 2020158331A1
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- WIPO (PCT)
- Prior art keywords
- design surface
- bucket
- control
- tilt
- control target
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
- E02F9/261—Surveying the work-site to be treated
- E02F9/262—Surveying the work-site to be treated with follow-up actions to control the work tool, e.g. controller
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
- E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
- E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
- E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/26—Indicating devices
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2203—Arrangements for controlling the attitude of actuators, e.g. speed, floating function
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2221—Control of flow rate; Load sensing arrangements
- E02F9/2225—Control of flow rate; Load sensing arrangements using pressure-compensating valves
- E02F9/2228—Control of flow rate; Load sensing arrangements using pressure-compensating valves including an electronic controller
Definitions
- the present invention relates to a construction machine control system and a construction machine control method.
- Patent Document 1 In the technical field related to construction machines, a control system for construction machines is disclosed, which is disclosed in Patent Document 1, which controls a tilt bucket based on target construction data indicating a target shape of a construction target.
- the target construction data may include the first design surface and the second design surface adjacent to the first design surface.
- the operator of the construction machine needs to operate the operating device for driving the working machine to bring the tilt bucket close to the first design surface. If it takes time to bring the tilt bucket closer to the first design surface, work efficiency may be reduced.
- the aspect of the present invention aims to suppress a decrease in work efficiency of a construction machine having a tilt bucket.
- a control system for a construction machine including a working machine including an arm and a tilt bucket, wherein the distance between the tilt bucket and the first design surface and the tilt bucket and the first design surface are adjacent to each other. Based on the distance from the second design surface to determine the control target surface from the first design surface and the second design surface, based on the control target surface determined by the determination unit, A control system for a construction machine, comprising: a work machine control unit that controls a tilt axis of a tilt bucket; and a display control unit that displays the control target surface and a surface other than the control target surface on a display device in different display modes.
- FIG. 1 is a perspective view showing an example of a construction machine according to the first embodiment.
- FIG. 2 is a block diagram showing an example of a construction machine control system according to the first embodiment.
- FIG. 3 is a diagram schematically showing the construction machine according to the first embodiment.
- FIG. 4 is a diagram schematically showing the bucket according to the first embodiment.
- FIG. 5 is a functional block diagram showing an example of the control device according to the first embodiment.
- FIG. 6 is a schematic diagram for explaining an example of processing of the determination unit according to the first embodiment.
- FIG. 7 is a flowchart showing an example of a construction machine control method according to the first embodiment.
- FIG. 8 is a plan view for explaining an example of the operation of the construction machine according to the first embodiment.
- FIG. 8 is a plan view for explaining an example of the operation of the construction machine according to the first embodiment.
- FIG. 9 is a perspective view for explaining an example of the operation of the construction machine according to the first embodiment.
- FIG. 10 is a schematic diagram for explaining an example of the operation of the construction machine according to the first embodiment.
- FIG. 11 is a schematic diagram showing a display example of the display device according to the first embodiment.
- FIG. 12 is a flowchart showing an example of a construction machine control method according to the second embodiment.
- FIG. 13 is a block diagram showing an example of a computer system according to this embodiment.
- the vehicle body coordinate system refers to a coordinate system whose origin is fixed to the construction machine.
- the vehicle body coordinate system is defined by an X axis extending in a specified direction with an origin set in the construction machine as a reference, a Y axis orthogonal to the X axis, and a Z axis orthogonal to each of the X axis and the Y axis. It
- the direction parallel to the X axis is defined as the X axis direction.
- the direction parallel to the Y axis is the Y axis direction.
- the direction parallel to the Z axis is the Z axis direction.
- the direction of rotation or inclination about the X axis is the ⁇ X direction.
- the rotation or inclination direction about the Y axis is defined as the ⁇ Y direction.
- the direction of rotation or inclination about the Z axis is the ⁇ Z direction.
- FIG. 1 is a perspective view showing an example of a construction machine 100 according to the present embodiment.
- the construction machine 100 is a hydraulic excavator
- the construction machine 100 will be appropriately referred to as a hydraulic excavator 100.
- the hydraulic excavator 100 includes a working machine 1 that is hydraulically operated, a revolving structure 2 that supports the working machine 1, and a traveling structure 3 that supports the revolving structure 2.
- the revolving structure 2 has a driver's cab 4 on which a driver rides. In the cab 4, a seat 4S on which a driver sits is arranged.
- the revolving unit 2 is capable of revolving around the revolving axis RX while being supported by the traveling unit 3.
- the running body 3 has a pair of crawler tracks 3C.
- the hydraulic excavator 100 runs by the rotation of the crawler belt 3C.
- the traveling body 3 may have tires.
- the work machine 1 is supported by the revolving structure 2.
- the work machine 1 includes a boom 6 connected to the revolving structure 2, an arm 7 connected to the tip of the boom 6, and a bucket 8 connected to the tip of the arm 7.
- the bucket 8 has a cutting edge 9.
- the blade edge 9 of the bucket 8 is the tip of a straight blade.
- the blade tip 9 of the bucket 8 may be the tip of a convex blade provided on the bucket 8.
- the boom 6 can rotate with respect to the revolving structure 2 around the boom axis AX1.
- the arm 7 is rotatable with respect to the boom 6 around the arm axis AX2.
- the bucket 8 is a tilt bucket.
- the bucket 8 is rotatable with respect to the arm 7 about each of the bucket axis AX3 and the tilt axis AX4.
- the boom axis AX1, the arm axis AX2, and the bucket axis AX3 are parallel to the Y axis.
- the tilt axis AX4 is orthogonal to the bucket axis AX3.
- the turning axis RX is parallel to the Z axis.
- the X-axis direction is the front-back direction of the revolving unit 2.
- the Y-axis direction is the vehicle width direction of the swing body 2.
- the Z-axis direction is the vertical direction of the revolving unit 2.
- the direction in which the work implement 1 is present is the front with respect to
- FIG. 2 is a block diagram showing an example of a control system 200 of the hydraulic excavator 100 according to this embodiment.
- FIG. 3 is a diagram schematically showing the hydraulic excavator 100 according to this embodiment.
- FIG. 4 is a diagram schematically showing the bucket 8 according to this embodiment.
- a control system 200 of the hydraulic excavator 100 drives an engine 5, a plurality of hydraulic cylinders 10 that drive the working machine 1, a swing motor 16 that drives the swing body 2, and a traveling body 3.
- a vehicle body position calculation device 20 for calculating position data of the body 2
- an angle detection device 30 for detecting the angle ⁇ of the working machine 1
- an operation device 40 for operating at least a part of the hydraulic excavator 100
- a control device 50 The display device 80 and the input device 90 are provided.
- the work machine 1 is operated by the power generated by the hydraulic cylinder 10.
- the hydraulic cylinder 10 is driven based on the hydraulic oil supplied from the hydraulic pump 17.
- the hydraulic cylinder 10 includes a boom cylinder 11 that operates the boom 6, an arm cylinder 12 that operates the arm 7, a bucket cylinder 13 that operates the bucket 8, and a tilt cylinder 14.
- the boom cylinder 11 generates power for rotating the boom 6 around the boom axis AX1.
- the arm cylinder 12 generates power for rotating the arm 7 around the arm axis AX2.
- the bucket cylinder 13 generates power for rotating the bucket 8 around the bucket axis AX3.
- the tilt cylinder 14 generates power for rotating the bucket 8 about the tilt axis AX4.
- the rotation of the bucket 8 about the bucket axis AX3 is appropriately referred to as bucket rotation
- the rotation of the bucket 8 about the tilt axis AX4 is appropriately referred to as tilt rotation.
- the revolving structure 2 revolves by the power generated by the revolving motor 16.
- the swing motor 16 is a hydraulic motor and is driven based on the hydraulic oil supplied from the hydraulic pump 17.
- the swing motor 16 generates power for swinging the swing body 2 around the swing axis RX.
- the traveling body 3 travels by the power generated by the traveling motor 15.
- the traveling motor 15 is a hydraulic motor and is driven based on the hydraulic oil supplied from the hydraulic pump 17.
- the traveling motor 15 generates power for moving the traveling body 3 forward or backward.
- the engine 5 is mounted on the revolving structure 2.
- the engine 5 generates power for driving the hydraulic pump 17.
- the hydraulic pump 17 discharges hydraulic oil for driving the hydraulic cylinder 10, the swing motor 16, and the traveling motor 15.
- the valve device 18 has a plurality of valves for distributing the hydraulic fluid supplied from the hydraulic pump 17 to the plurality of hydraulic cylinders 10, the swing motor 16, and the traveling motor 15.
- the valve device 18 adjusts the flow rate of the hydraulic oil supplied to each of the plurality of hydraulic cylinders 10. By adjusting the flow rate of the hydraulic oil supplied to the hydraulic cylinder 10, the operating speed of the work machine 1 is adjusted.
- the valve device 18 adjusts the flow rate of the hydraulic oil supplied to the turning motor 16. By adjusting the flow rate of the hydraulic oil supplied to the swing motor 16, the swing speed of the swing body 2 is adjusted.
- the valve device 18 adjusts the flow rate of the hydraulic oil supplied to the traveling motor 15.
- the traveling speed of the traveling body 3 is adjusted by adjusting the flow rate of the hydraulic oil supplied to the traveling motor 15.
- the vehicle body position calculation device 20 calculates the position data of the swing structure 2.
- the position data of the swing body 2 includes the position of the swing body 2, the attitude of the swing body 2, and the orientation of the swing body 2.
- the vehicle body position calculation device 20 includes a position calculator 21 that calculates the position of the swing structure 2, a posture calculator 22 that calculates the posture of the swing structure 2, and an azimuth calculator 23 that calculates the azimuth of the swing structure 2. ..
- the position calculator 21 calculates the position of the swing body 2 in the global coordinate system as the position of the swing body 2.
- the position calculator 21 is arranged on the revolving structure 2.
- the global coordinate system refers to a coordinate system whose origin is fixed to the earth.
- the global coordinate system is a coordinate system defined by GNSS (Global Navigation Satellite System).
- GNSS Global Navigation Satellite System
- GPS Global Positioning System
- the GNSS has a plurality of positioning satellites.
- the GNSS detects a position defined by coordinate data of latitude, longitude, and altitude.
- the revolving unit 2 is provided with a GPS antenna.
- the GPS antenna receives radio waves from GPS satellites and outputs a signal generated based on the received radio waves to the position calculator 21.
- the position calculator 21 calculates the position of the revolving unit 2 in the global coordinate system based on the signal supplied from the GPS antenna.
- the position calculator 21 calculates the position of the representative point O of the swing structure 2 as shown in FIG. 3, for example.
- the representative point O of the swing body 2 is set on the swing axis RX.
- the representative point O may be set on the boom axis AX1.
- the attitude calculator 22 calculates the tilt angle of the revolving structure 2 with respect to the horizontal plane in the global coordinate system as the attitude of the revolving structure 2.
- the attitude calculator 22 is arranged on the revolving unit 2.
- the attitude calculator 22 includes an inertial measurement unit (IMU: Inertial Measurement Unit).
- the tilt angle of the revolving structure 2 with respect to the horizontal plane includes a roll angle ⁇ indicating the tilt angle of the revolving structure 2 in the vehicle width direction and a pitch angle ⁇ indicating the tilt angle of the revolving structure 2 in the front-rear direction.
- the azimuth calculator 23 calculates the azimuth of the revolving unit 2 with respect to the reference azimuth in the global coordinate system as the azimuth of the revolving unit 2.
- the reference azimuth is, for example, north.
- the azimuth calculator 23 is arranged on the revolving unit 2.
- the azimuth calculator 23 includes a gyro sensor.
- the azimuth calculator 23 may calculate the azimuth based on the signal supplied from the GPS antenna.
- the azimuth of the revolving unit 2 with respect to the reference azimuth includes a yaw angle ⁇ indicating an angle formed by the reference azimuth and the azimuth of the revolving unit 2.
- the angle detection device 30 detects the angle ⁇ of the work machine 1.
- the angle detection device 30 is arranged in the work machine 1.
- the angle ⁇ of the work implement 1 is a boom angle ⁇ 1 indicating the angle of the boom 6 with respect to the Z axis, an arm angle ⁇ 2 indicating the angle of the arm 7 relative to the boom 6, and a bucket relative to the arm 7.
- a bucket angle ⁇ 3 indicating the angle of the bucket 8 in the rotation direction and a tilt angle ⁇ 4 indicating the angle of the bucket 8 in the tilt rotation direction with respect to the XY plane are included.
- the angle detection device 30 detects a boom angle detector 31 that detects a boom angle ⁇ 1, an arm angle detector 32 that detects an arm angle ⁇ 2, a bucket angle detector 33 that detects a bucket angle ⁇ 3, and a tilt angle ⁇ 4.
- Tilt angle detector 34 for The angle detection device 30 may include a stroke sensor that detects the stroke of the hydraulic cylinder 10, or may include an angle sensor that detects the angle ⁇ of the work machine 1 such as a rotary encoder. When the angle detection device 30 includes a stroke sensor, the angle detection device 30 calculates the angle ⁇ of the work machine 1 based on the detection data of the stroke sensor.
- the operating device 40 is operated by the driver to drive the hydraulic cylinder 10, the swing motor 16, and the traveling motor 15.
- the operating device 40 is arranged in the cab 4.
- the operating device 40 is operated by the driver operating the operating device 40.
- the operation device 40 includes a lever operated by a driver of the hydraulic excavator 100.
- the levers of the operation device 40 include a right operation lever 41, a left operation lever 42, and a tilt operation lever 43.
- the arm 7 When the left operation lever 42 in the neutral position is operated forward, the arm 7 performs a dump operation, and when it is operated backward, the arm 7 performs an excavation operation.
- the left operation lever 42 in the neutral position is operated to the right, the revolving unit 2 turns to the right, and when it is operated to the left, the revolving unit 2 turns to the left.
- the operation device 40 includes a traveling lever (not shown). By operating the traveling lever, the traveling body 3 is switched between forward and reverse traveling. The traveling speed of the traveling body 3 is adjusted by operating the traveling lever.
- the display device 80 displays the display data.
- the display device 80 is arranged in the cab 4.
- Examples of the display device 80 include a flat panel display such as a liquid crystal display (LCD: Liquid Crystal Display) or an organic EL display (OLED: Organic Electroluminescence Display).
- the input device 90 is operated by the driver to input the input data to the control device 50.
- the input device 90 is arranged in the cab 4.
- Examples of the input device 90 include a contact type input device operated by the driver's hand, such as a computer keyboard, a mouse, a touch panel, operation switches, and operation buttons.
- the input device 90 may be a voice input device operated by the voice of the administrator.
- FIG. 5 is a functional block diagram showing an example of the control device 50 according to the present embodiment.
- the control device 50 includes a vehicle body position data acquisition unit 51, an angle data acquisition unit 52, an operation data acquisition unit 53, an input data acquisition unit 54, a target construction data acquisition unit 55, a bucket position data calculation unit 56, The determination unit 57, the storage unit 60, the work machine control unit 61, and the display control unit 62 are included.
- the vehicle body position data acquisition unit 51 acquires the position data of the swing structure 2 from the vehicle body position calculation device 20.
- the position data of the swing body 2 includes the position of the swing body 2, the attitude of the swing body 2, and the orientation of the swing body 2.
- the angle data acquisition unit 52 acquires angle data indicating the angle ⁇ of the work machine 1 from the angle detection device 30.
- the angle data of the work machine 1 includes a boom angle ⁇ 1, an arm angle ⁇ 2, a bucket angle ⁇ 3, and a tilt angle ⁇ 4.
- the operation data acquisition unit 53 acquires operation data generated by operating the operation device 40.
- the operation data of the operating device 40 includes the amount of operation of the operating device 40.
- the operation device 40 is provided with an operation amount sensor that detects the amount of operation of the lever.
- the operation data acquisition unit 53 acquires the operation data of the operation device 40 from the operation amount sensor of the operation device 40.
- the operation data includes operation data generated to operate the work machine 1, operation data generated to rotate the revolving structure 2, and operation data generated to cause the traveling structure 3 to travel.
- the input data acquisition unit 54 acquires the input data generated by operating the input device 90.
- the target construction data acquisition unit 55 acquires target construction data CS indicating the target shape of the construction target.
- the target construction data CS indicates a three-dimensional target shape after construction by the hydraulic excavator 100.
- the target construction data CS is defined in the vehicle body coordinate system.
- the target construction data CS may be defined in the global coordinate system.
- the target construction data supply device 70 generates the target construction data CS.
- the target construction data acquisition unit 55 acquires target construction data from the target construction data supply device 70.
- the target construction data supply device 70 may be provided at a remote location of the hydraulic excavator 100.
- the target construction data CS generated by the target construction data supply device 70 may be transmitted to the control device 50 via the communication system.
- the target construction data generated by the target construction data supply device 70 may be stored in the storage unit 60.
- the target construction data acquisition unit 55 may acquire the target construction data CS from the storage unit 60.
- the target construction data CS is defined in the vehicle body coordinate system.
- the bucket position data calculation unit 56 calculates the position data of the specified point RP set in the bucket 8.
- the bucket position data calculation unit 56 stores in the storage unit 60 the position data of the revolving structure 2 acquired by the vehicle body position data acquisition unit 51, the angle data of the working machine 1 acquired by the angle data acquisition unit 52, and the storage unit 60.
- the position data of the defined point RP set in the bucket 8 is calculated based on the working machine data.
- the work machine data includes a boom length L1, an arm length L2, a bucket length L3, a tilt length L4, and a bucket width L5.
- the boom length L1 is the distance between the boom axis AX1 and the arm axis AX2.
- the arm length L2 is the distance between the arm axis AX2 and the bucket axis AX3.
- the bucket length L3 is the distance between the bucket axis AX3 and the blade edge 9 of the bucket 8.
- the tilt length L4 is the distance between the bucket axis AX3 and the tilt axis AX4.
- the bucket width L5 is the widthwise dimension of the bucket 8.
- the work machine data includes bucket outline data indicating the shape and size of the bucket 8.
- the bucket outline data includes the outer surface data of the bucket 8 including the contour of the outer surface of the bucket 8.
- the bucket outline data includes coordinate data of a plurality of specified points RP of the bucket 8 with reference to a predetermined portion of the bucket 8.
- the bucket position data calculation unit 56 calculates the relative position of each of the plurality of specified points RP with respect to the representative point O of the swing body 2. Further, the bucket position data calculation unit 56 calculates the absolute position of each of the plurality of specified points RP.
- the bucket position data calculation unit 56 includes work machine data including a boom length L1, an arm length L2, a bucket length L3, a tilt length L4, and bucket outline data, a boom angle ⁇ 1, an arm angle ⁇ 2, and a bucket angle ⁇ 3. , And the working machine angle data including the tilt angle ⁇ 4, it is possible to calculate the relative position of each of the plurality of specified points RP with respect to the representative point O.
- the representative point O is set on the swing axis RX of the swing body 2.
- the representative point O may be set on the boom axis AX1.
- the bucket position data calculation unit 56 can calculate the absolute position of the bucket 8 based on the absolute position of the revolving structure 2 calculated by the vehicle body position calculation device 20 and the relative position of the representative point O and the bucket 8. ..
- the relative position between the absolute position of the swing body 2 and the representative point O is known data derived from the specification data of the hydraulic excavator 100.
- the bucket position data calculation unit 56 determines a plurality of buckets 8 based on the position data including the absolute position of the swing body 2, the relative position between the representative point O and the bucket 8, the work machine data, and the work machine angle data. It is possible to calculate the absolute position of each of the defined points RP.
- the determination unit 57 uses the target construction data CS acquired by the target construction data acquisition unit 55 and the position data of the specified point RP acquired by the bucket position data calculation unit 56 to control the surface to be used for controlling the bucket 8. Determine Fc.
- FIG. 6 is a schematic diagram for explaining an example of processing of the determination unit 57 according to the present embodiment.
- the target construction data CS includes a plurality of design planes F.
- the design surface F indicates the target shape of the construction target.
- the determining unit 57 determines the control target surface Fc used for controlling the bucket 8 from the plurality of design surfaces F of the target construction data CS. Further, the determining unit 57 determines the non-control target surface Fn that is not used for controlling the bucket 8 from the plurality of design surfaces F of the target construction data CS.
- the control of the bucket 8 includes at least control of the tilt axis AX4 of the bucket 8.
- the tilt axis AX4 of the bucket 8 is controlled by at least one of the tilt angle ⁇ 4 indicating the angle (position) of the bucket 8 in the tilt rotation direction, the rotation speed of the bucket 8 in the tilt rotation direction, and the rotation acceleration of the bucket 8 in the tilt rotation direction. Including one control.
- the control of the bucket 8 may include control of the bucket axis AX3 of the bucket 8.
- the bucket axis AX3 control of the bucket 8 includes at least one of a bucket angle ⁇ 3 indicating an angle (position) of the bucket 8 in the bucket rotation direction, a rotation speed of the bucket 8 in the bucket rotation direction, and a rotation acceleration of the bucket 8 in the bucket rotation direction. Including control.
- the bucket 8 has its tilt axis AX4 controlled based on the control target surface Fc.
- the determination unit 57 determines the control target surface Fc used for controlling the tilt axis AX4 of the bucket 8 from the plurality of design surfaces F of the target construction data. Further, the determination unit 57 determines the non-control target surface Fn that is not used for controlling the tilt axis of the bucket 8 from the plurality of design surfaces F of the target construction data.
- the control target surface Fc used for controlling the tilt axis AX4 of the bucket 8 is determined to be the design surface F having the shortest distance from the bucket 8 among the plurality of design surfaces F of the target construction data CS.
- the target construction data CS including the plurality of design planes F is defined in the vehicle body coordinate system.
- the position data of the bucket 8 (specified point RP) is also specified in the vehicle body coordinate system.
- the determination unit 57 determines the point AP having the shortest distance (vertical distance) to the bucket 8 calculated by the bucket position data calculation unit 56.
- the determining unit 57 determines the design surface F including the point AP as the control target surface Fc having the shortest distance from the bucket 8.
- the non-control target surface Fn that is not used for controlling the tilt axis AX4 of the bucket 8 is arranged at least partly around the control target surface Fc.
- the control target surface Fc and the non-control target surface Fn are adjacent to each other.
- the distance between the control target surface Fc and the bucket 8 is shorter than the distance between the non-control target surface Fn and the bucket 8.
- the determining unit 57 also determines the work machine operation plane WP that passes through the point AP and the bucket 8 and is orthogonal to the bucket axis AX3.
- the work machine operation plane WP is an operation plane on which the bucket 8 moves by the operation of at least one of the boom cylinder 11, the arm cylinder 12, and the bucket cylinder 13, and is parallel to the XZ plane in the vehicle body coordinate system.
- the determining unit 57 also determines a line LX which is an intersection of the work machine operation plane WP and the target construction data CS. Further, the determining unit 57 determines a line LY that passes through the point AP and intersects the line LX in the target construction data CS.
- the determination unit 57 determines that the control target surface Fc determined based on the target construction data CS acquired by the target construction data acquisition unit 55 and the position data of the defined point RP acquired by the bucket position data calculation unit 56 is the last time. It is determined whether or not the control target surface Fb has been switched. When the control target surface Fc is the same as the previous control target surface Fb, the control target surface Fc is maintained at the previous control target surface Fb.
- the determination unit 57 maintains the specific operation of the work machine 1 based on the operation data acquired by the operation data acquisition unit 53. It is determined whether or not there is.
- the control target surface Fc is maintained at the previous control target surface Fb.
- the target construction data CS and the control target surface Fc based on the position data of the defined point RP are maintained.
- the work implement control unit 61 controls the tilt axis AX4 of the bucket 8 based on the controlled surface Fc determined by the determination unit 57 so that the bucket 8 does not dig into the design surface F. Further, the work implement control unit 61 controls the bucket axis AX3 of the bucket 8 based on the control target surface Fc determined by the determination unit 57 so that the bucket 8 does not dig into the design surface F. Further, the work implement control unit 61 controls the boom 6 so that the bucket 8 does not dig into the design surface F. That is, the work implement control unit 61 executes control of the work implement 1 including at least control of the tilt axis AX4 so that the bucket 8 follows the control target surface Fc.
- the work implement control unit 61 moves the boom 6 and the arm 7 and rotates the bucket 8 along the line LX. Further, the work implement control unit 61 tilts the bucket 8 along the line LY.
- the work machine control unit 61 controls the tilt axis AX4 of the bucket 8 so that the relative angle between the bucket 8 and the line LY of the control target surface Fc in the tilt rotation direction is maintained.
- the display control unit 62 causes the display device 80 to display the display data.
- the display control unit 62 causes the display device 80 to display the control target surface Fc determined by the determination unit 57 and the surfaces other than the control target surface Fc in different display modes.
- the display control unit 62 causes the display device 80 to display the control target surface Fc and the non-control target surface Fn determined by the determination unit 57 in different display modes.
- FIG. 7 is a flowchart showing an example of a control method of the hydraulic excavator 100 according to this embodiment.
- the target construction data acquisition unit 55 acquires the target construction data CS (step S10).
- the vehicle body position data acquisition unit 51 acquires the position data of the swing structure 2 from the vehicle body position calculation device 20.
- the angle data acquisition unit 52 acquires the angle data of the work machine 1 from the angle detection device 30.
- the bucket position data calculation unit 56 determines the position of the bucket 8 (specified point RP) based on the position data of the revolving structure 2, the angle data of the work machine 1, and the work machine data stored in the storage unit 60. calculate.
- the target construction data CS includes a first design surface F1 and a second design surface F2 adjacent to the first design surface F1.
- the slope of the first design surface F1 and the slope of the second design surface F2 are different.
- the determination unit 57 calculates the distance d1 between the bucket 8 and the first design surface F1 and the distance d2 between the bucket 8 and the second design surface F2 based on the position data of the bucket 8 and the target construction data CS. (Step S20).
- the distance d1 and the distance d2 are defined in the vehicle body coordinate system.
- the distance d1 and the distance d2 may be defined in the global coordinate system.
- the determination unit 57 determines the control target surface Fc from the first design surface F1 and the second design surface F2. Is determined (step S30).
- the distance d1 is shorter than the distance d2
- the first design surface F1 is determined as the control target surface Fc
- the second design surface F2 adjacent to the first design surface F1 is the non-control target surface. It is decided to be Fn.
- FIG. 8 is a plan view for explaining an example of the operation of the hydraulic excavator 100 according to this embodiment.
- FIG. 9 is a perspective view for explaining an example of the operation of the hydraulic excavator 100 according to this embodiment.
- the driver controls the tilt axis AX4 so that the bucket 8 moves from the first position P1 on the first design surface F1 to the third position P3 via the second position P2.
- the operating device 40 is operated.
- the first position P1 is a position on the first design surface F1 far from the revolving structure 2.
- the second position P2 is a position on the first design surface F1 closer to the revolving structure 2 than the first position P1.
- the third position P3 is a position on the first design surface F1 closer to the revolving structure 2 than the second position P2.
- the first design surface F1 is a slope inclined with respect to the XY plane.
- the driver can form a slope on the construction target by operating the operation device 40 to drive at least the arm 7 so that the bucket 8 whose tilt axis AX4 is controlled approaches the swing body 2.
- the bucket 8 does not dig into the first design surface F1.
- the driver may operate the operating device 40 to operate the work implement 1 while rotating the revolving structure 2.
- the determining unit 57 determines whether the control target surface Fc has been switched. That is, the determining unit 57 determines that the control target surface Fc changes from the first design surface F1 to the second design surface Fc based on the distance d1 between the bucket 8 and the first design surface F1 and the distance d2 between the bucket 8 and the second design surface F2. It is determined whether or not the surface has been switched to the surface F2 (step S40).
- step S40 If it is determined in step S40 that the control target surface Fc has switched from the first design surface F1 to the second design surface F2 (step S40: Yes), the process proceeds to step S50.
- step S40 When it is determined in step S40 that the control target surface Fc is not switched from the first design surface F1 to the second design surface F2 (step S40: No), that is, the control target surface Fc is maintained on the first design surface F1. If so, the process proceeds to step S70.
- the operation data of the operation device 40 is acquired by the operation data acquisition unit 53.
- the determination unit 57 determines whether the specific operation is maintained based on the operation data acquired by the operation data acquisition unit 53 (step S50).
- the specific operation is an operation of driving the arm 7 so that the bucket 8 moves from the first position P1 to the third position P3.
- the determination unit 57 determines whether or not the operation of the operation device 40 (the left operation lever 42) for driving the arm 7 is being continued.
- step S50 When it is determined in step S50 that the specific operation is maintained (step S50: Yes), the determination unit 57 switches the control target surface Fc to the second design surface F2 during the period in which the specific operation is maintained. Instead, it is maintained on the first design surface F1 (step S60).
- step S50 determines the design surface of the first design surface F1 and the second design surface F2 having a short distance from the bucket 8. F is determined as the control target surface Fc, and the process proceeds to step S70.
- the driver when the bucket 8 is moving from the first position P1 toward the third position P3, the driver operates the operating device 40 (the left operating lever 42) that operates the arm 7 and quits the operation.
- the design surface F which has a short distance from the bucket 8 when the driver quits the operation of the arm 7, is the first design surface F1 among the design surfaces F1 and F2, the working machine control unit 61 determines The tilt axis AX4 of the bucket 8 is controlled so that the blade edge 9 of the bucket 8 and the first design surface F1 are parallel to each other.
- the control unit 61 controls the tilt axis AX4 of the bucket 8 so that the blade edge 9 of the bucket 8 and the second design surface F2 are parallel to each other.
- the display control unit 62 causes the display device 80 to display the control target surface Fc determined by the determination unit 57 and the surfaces other than the control target surface Fc in different display modes (step S70).
- the work implement control unit 61 based on the first design surface F1 which is the control target surface Fc determined by the determination unit 57, so that the blade edge 9 of the bucket 8 and the first design surface F1 are parallel to each other.
- the tilt axis AX4 is controlled (step S80).
- FIG. 10 is a schematic diagram for explaining an example of the operation of the hydraulic excavator 100 according to the present embodiment.
- FIG. 10 shows the relative angle between the cutting edge 9 of the bucket 8 and the first design surface F1 when the bucket 8 moves to each of the first position P1, the second position P2, and the third position P3.
- the determining unit 57 determines the first design surface F1 of the first design surface F1 and the second design surface F2, which has a shorter distance from the bucket 8, as the control target surface Fc.
- the design surface F having a short distance from the bucket 8 may change from the first design surface F1 to the second design surface F2.
- the determining unit 57 determines that the design surface F having a short distance from the bucket 8 is the first design surface F1 to the second design surface F1.
- the control target surface Fc is maintained at the first design surface F1 during the period in which the specific operation (operation of driving the arm 7) is maintained, and the work implement control unit 61 causes the control target surface Fc to be controlled.
- the tilt axis AX4 of the bucket 8 is controlled based on That is, when the control target surface Fc is determined to be the first design surface F1, the working machine control unit 61 changes the design surface having a short distance from the bucket 8 from the first design surface F1 to the second design surface F2. Even so, the relative angle between the bucket 8 and the control target surface Fc (first design surface F1) in the tilt rotation direction is maintained while the specific operation (operation of driving the arm 7) is maintained. , The tilt axis AX4 of the bucket 8 is controlled.
- FIG. 11 is a schematic diagram showing a display example of the display device 80 according to the present embodiment.
- the display control unit 62 causes the display device 80 to display the first design surface F1 and the second design surface F2 adjacent to the first design surface F1 based on the target construction data CS.
- the slope of the first design surface F1 and the slope of the second design surface F2 are different.
- a groove is formed by the first design surface F1 and the second design surface F2.
- Each of the first design surface F1 and the second design surface F2 is flat.
- the first design surface F1 and the second design surface F2 form a groove having a letter “V” shape.
- the display control unit 62 causes the display device 80 to display the control target surface Fc and the non-control target surface Fn in different display modes.
- the display control unit 62 sets the first design surface F1 and the second design surface F2.
- the display device 80 is displayed in different display modes.
- the display control unit 62 displays graphic data 81 indicating the first design surface F1 that is the control target surface Fc in the vicinity of the first design surface F1.
- the graphic data 81 is not displayed in the vicinity of the second design surface F2 which is the non-control target surface Fn.
- the driver looks at the display device 80 so that the bucket 8 approaches the first design surface F1 that is the control target surface Fc, that is, the bucket 8 faces (faces) the first design surface F1.
- the operating device 40 is operated.
- the driver can bring the bucket 8 closer to the first design surface F1 that is the control target surface Fc by operating the operating device 40 to drive the work implement 1 or rotate the revolving structure 2. .. Since the first design surface F1 that is the control target surface Fc is displayed in a display form different from that of the second design surface F2, the driver looks at the display device 80 and smoothly moves the bucket 8 to the first design surface F1. It can approach the design surface F1.
- the controlled surface Fc and the non-controlled surface Fn may be displayed on the display device 80 in different display modes.
- the control target surface Fc may be displayed in a first color (for example, red) and the non-control target surface Fn may be displayed in a second color (for example, yellow) different from the first color.
- the control target surface Fc may be displayed so as to intermittently light up (blink), and the non-control target surface Fn may be displayed so as to continuously light up.
- the worker operates the operation device 40 so that the bucket 8 moves along the second design surface F2 and drives at least the arm 7.
- the operator may operate the operating device 40 to drive the boom 6, or may drive both the arm 7 and the boom 6.
- the display control unit 62 causes the second design surface Fc to be the control target surface Fc, for example.
- the graphic data 81 indicating F2 is displayed in the vicinity of the second design surface F2.
- the first design surface F1 and the second design surface F2 are obtained.
- the controlled surface Fc is determined from the design surface F2.
- the display control unit 62 causes the display device 80 to display the control target surface Fc and the surfaces other than the control target surface Fc in different display modes. Accordingly, the driver can visually recognize which of the first design surface F1 and the second design surface F2 is the control target surface Fc.
- the driver looks at the display device 80 so that the bucket 8 approaches the first design surface F1 that is the control target surface Fc, that is, the bucket 8 faces (faces) the first design surface F1.
- the operating device 40 can be operated.
- the driver can smoothly bring the bucket 8 close to the first design surface F1 in a short time while looking at the display device 80. Since the time required to bring the bucket 8 closer to the first design surface F1 is shortened, the reduction in work efficiency of the hydraulic excavator 100 is suppressed.
- the control target surface Fc it is determined based on the operation data of the operation device 40 whether or not the specific operation is maintained, and in the period in which the specific operation is maintained, the control target surface Fc is maintained,
- the tilt axis AX4 is controlled. For example, when the control target surface Fc is determined to be the first design surface F1, even if the design surface having a short distance from the bucket 8 changes from the first design surface F1 to the second design surface F2, the specific operation is maintained.
- the controlled surface Fc is maintained on the first design surface F1 during the period. As a result, it is possible to prevent the bucket 8 from tilting against the driver's intention.
- the driver has the intention to construct the construction object based on the first design surface F1
- the bucket 8 whose tilt axis AX4 is controlled based on the first design surface F1 is moved from the first position P1 to the third position P3.
- the arm 7 Despite operating the arm 7 to move to the position P3, from the state in which the tilt axis AX4 of the bucket 8 is controlled based on the first design surface F1 to the bucket based on the second design surface F2.
- the bucket 8 may dig into the design surface F greatly.
- the work implement control unit 61 determines that the driver intends to construct the construction target based on the first design surface F1. Certified to be in.
- the working machine control unit 61 determines that the distance d2 between the bucket 8 and the second design surface F2 is the bucket 8 and the second design surface F2. Even if the distance is shorter than the distance d1 from the first design surface F1, the tilt axis AX4 of the bucket 8 is controlled based on the first design surface F1. As a result, the driver's intention is respected and the bucket 8 is prevented from digging into the design surface F.
- the specific operation is an operation to drive the arm 7.
- the specific operation may be an operation of driving the traveling body 3 of the hydraulic excavator 100.
- the traveling body 3 may be moved backward without driving the arm 7.
- the work implement control unit 61 may determine whether or not the specific operation is maintained based on the operation data of the operating device 40 (travel lever) that operates the traveling body 3.
- FIG. 12 is a flowchart showing an example of a construction machine control method according to the second embodiment.
- the target construction data acquisition unit 55 acquires the target construction data CS including the first design surface F1 and the second design surface F2 (step S10).
- the display control unit 62 causes the display device 80 to display the target construction data CS including the first design surface F1 and the second design surface F2 (step S15).
- the driver operates the input device 90 while looking at the display device 80 to select the control target surface Fc from the first design surface F1 and the second design surface F2 displayed on the display device 80.
- the input data acquisition unit 54 acquires the input data generated by operating the input device 90 (step S25).
- the display control unit 62 may cause the display device 80 to display, for example, a first line showing a cross section of the first design surface F1 and a second line showing a cross section of the second design surface F2.
- the display control unit 62 may display the first line and the second line at different angles on the display screen of the display device 80. This allows the driver to distinguish between the image data showing the first design surface F1 and the image data showing the second design surface F2.
- the determining unit 57 determines the control target surface Fc from the first design surface F1 and the second design surface F2 based on the input data acquired by the input data acquisition unit 54 (step S30).
- the display control unit 62 causes the display device 80 to display the first design surface F1 and the second design surface F2 in different display forms (step S35).
- the work implement control unit 61 based on the first design surface F1 which is the control target surface Fc determined by the determination unit 57, so that the blade edge 9 of the bucket 8 and the first design surface F1 are parallel to each other.
- the tilt axis AX4 is controlled (step S80).
- the first design surface F1 and the second design surface F2 may be displayed in a display form that allows the driver to visually distinguish them.
- the image data showing the first design surface F1 is displayed in a first color (for example, red)
- the image data showing the second design surface F2 is displayed in a second color (for example, yellow) different from the first color. It may be displayed.
- the image data showing the first design surface F1 may be displayed so as to be intermittently lit (blinking), and the image data showing the second design surface F2 may be displayed so as to be continuously lit.
- the character data indicating the first design surface F1 and the second design surface F2 may be displayed on the display device 80.
- the driver selects the first design surface F1 as the control target surface Fc, and the determining unit 87 determines the first design surface F1 as the control target surface Fc. It is assumed that the second design surface F2 adjacent to F1 is determined as the non-control target surface Fn.
- the vehicle body position data acquisition unit 51 acquires the position data of the swing structure 2 from the vehicle body position calculation device 20.
- the angle data acquisition unit 52 acquires the angle data of the work machine 1 from the angle detection device 30.
- the bucket position data calculation unit 56 determines the position of the bucket 8 (specified point RP) based on the position data of the revolving structure 2, the angle data of the work machine 1, and the work machine data stored in the storage unit 60. calculate.
- the worker operates the operation device 40 so that the bucket 8 moves along the first design surface F1 and drives at least the arm 7.
- the operator may operate the operating device 40 to drive the boom 6, or may drive both the arm 7 and the boom 6.
- the driver operates the operating device 40 so that the bucket 8 whose tilt axis AX4 is controlled moves from the first position P1 to the third position P3.
- the control target surface Fc is determined from the first design surface F1 and the second design surface F2 based on the input data generated by operating the input device 90. It That is, the driver can determine which of the first design surface F1 and the second design surface F2 is the control target surface Fc by the driver himself. Therefore, the driver operates the operating device 40 so that the bucket 8 approaches the first design surface F1 that is the control target surface Fc, that is, the bucket 8 faces (faces) the first design surface F1. can do. Since the driver selects the desired controlled surface Fc, even if the bucket 8 approaches the non-controlled surface Fn, it is possible to prevent the controlled surface Fc from switching and digging into the design surface F. Thereby, the hydraulic excavator 100 can smoothly perform the work. Further, since the time required to bring the bucket 8 closer to the first design surface F1 is shortened, the reduction in the work efficiency of the hydraulic excavator 100 is suppressed.
- FIG. 13 is a block diagram showing an example of a computer system 1000 according to this embodiment.
- the control device 50 described above includes a computer system 1000.
- the computer system 1000 includes a processor 1001 such as a CPU (Central Processing Unit), a main memory 1002 including a nonvolatile memory such as a ROM (Read Only Memory) and a volatile memory such as a RAM (Random Access Memory), It has a storage 1003 and an interface 1004 including an input/output circuit.
- the functions of the control device 50 described above are stored in the storage 1003 as programs.
- the processor 1001 reads the program from the storage 1003, expands it in the main memory 1002, and executes the above-described processing according to the program.
- the program may be distributed to the computer system 1000 via a network.
- the computer system 1000 acquires the target construction data indicating the target shape of the construction target including the first design surface F1 and the second design surface F2 adjacent to the first design surface F1 according to the above-described embodiment, and the bucket 8 Determining the controlled surface Fc from the first design surface F1 and the second design surface F2 based on the distance d1 between the first design surface F1 and the first design surface F1 and the distance d2 between the bucket 8 and the second design surface F2.
- the tilt axis AX4 of the bucket 8 is controlled based on the controlled surface Fc that is controlled, and the controlled surface Fc and the surface other than the controlled surface Fc are displayed on the display device 80 in different display modes. Can be executed.
- the computer system 1000 acquires target construction data indicating the target shape of the construction target including the first design surface F1 and the second design surface F2 adjacent to the first design surface F1 according to the above-described embodiment, Acquiring the input data generated by the operation of the input device 90, determining the control target surface Fc from the first design surface F1 and the second design surface F2 based on the input data, and the determined control target
- the tilt axis AX4 of the bucket 8 can be controlled based on the surface Fc.
- the construction machine 100 is a hydraulic excavator.
- the components described in the above-described embodiment are applicable to a construction machine having a working machine, which is different from the hydraulic excavator.
- the swing motor 16 that swings the swing structure 2 does not have to be a hydraulic motor.
- the swing motor 16 may be an electric motor driven by being supplied with electric power.
- the work machine 1 may be operated not by the hydraulic cylinder 10 but by the power generated by an electric actuator such as an electric motor.
- Operating device 41... Right operating lever, 42... Left operating lever, 43... Tilt operating lever, 50... Control device, 51... Body position data acquisition unit, 52... Angle data acquisition unit, 53... Operation data acquisition 54,... Input data acquisition unit, 55... Target construction data acquisition unit, 56... Bucket position data calculation unit, 57... Determination unit, 60... Storage unit, 61... Working machine control unit, 62... Display control unit, 70... Target construction data supply device, 80... Display device, 90... Input device, 100... Construction machine, 200... Control system, AX1... Boom shaft, AX2... Arm shaft, AX3... Bucket shaft, AX4... Tilt shaft, F1... First Design surface, F2... Second design surface, Fc... Control surface, Fn... Non-control surface.
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Abstract
Description
<建設機械>
図1は、本実施形態に係る建設機械100の一例を示す斜視図である。本実施形態においては、建設機械100が油圧ショベルである例について説明する。以下の説明においては、建設機械100を適宜、油圧ショベル100、と称する。
図2は、本実施形態に係る油圧ショベル100の制御システム200の一例を示すブロック図である。図3は、本実施形態に係る油圧ショベル100を模式的に示す図である。図4は、本実施形態に係るバケット8を模式的に示す図である。
図5は、本実施形態に係る制御装置50の一例を示す機能ブロック図である。制御装置50は、車体位置データ取得部51と、角度データ取得部52と、操作データ取得部53と、入力データ取得部54と、目標施工データ取得部55と、バケット位置データ算出部56と、決定部57と、記憶部60と、作業機制御部61と、表示制御部62とを有する。
図7は、本実施形態に係る油圧ショベル100の制御方法の一例を示すフローチャートである。
以上説明したように、本実施形態によれば、バケット8と第1設計面F1との距離d1及びバケット8と第2設計面F2との距離d2に基づいて、第1設計面F1及び第2設計面F2から制御対象面Fcが決定される。表示制御部62は、制御対象面Fcと制御対象面Fc以外の面とを異なる表示形態で表示装置80に表示させる。これにより、運転者は、第1設計面F1と第2設計面F2とのどちらが制御対象面Fcであるかを、視覚を通じて認識することができる。そのため、運転者は、表示装置80を見ながら、バケット8が制御対象面Fcである第1設計面F1に近付くように、すなわち、バケット8が第1設計面F1に対向(正対)するように、操作装置40を操作することができる。運転者は、表示装置80を見ながら、短時間で円滑にバケット8を第1設計面F1に近付けることができる。バケット8を第1設計面F1に近付けることに要する時間が短縮されるので、油圧ショベル100の作業効率の低下が抑制される。
第2実施形態について説明する。以下の説明において、上述の実施形態と同一又は同様の構成要素については同一の符号を付し、その説明を簡略又は省略する。
以上説明したように、本実施形態によれば、入力装置90が操作されることにより生成された入力データに基づいて、第1設計面F1及び第2設計面F2から制御対象面Fcが決定される。すなわち、運転者は、第1設計面F1と第2設計面F2とのどちらを制御対象面Fcにするかを、運転者自身で決定することができる。そのため、運転者は、バケット8が制御対象面Fcである第1設計面F1に近付くように、すなわち、バケット8が第1設計面F1に対向(正対)するように、操作装置40を操作することができる。運転者が希望の制御対象面Fcを選択するため、非制御対象面Fnにバケット8が近付いても、制御対象面Fcが切り換わって設計面Fを掘り込んでしまうことが抑制される。これにより、油圧ショベル100は、円滑に作業を実施することができる。また、バケット8を第1設計面F1に近付けることに要する時間が短縮されるので、油圧ショベル100の作業効率の低下が抑制される。
図13は、本実施形態に係るコンピュータシステム1000の一例を示すブロック図である。上述の制御装置50は、コンピュータシステム1000を含む。コンピュータシステム1000は、CPU(Central Processing Unit)のようなプロセッサ1001と、ROM(Read Only Memory)のような不揮発性メモリ及びRAM(Random Access Memory)のような揮発性メモリを含むメインメモリ1002と、ストレージ1003と、入出力回路を含むインターフェース1004とを有する。上述の制御装置50の機能は、プログラムとしてストレージ1003に記憶されている。プロセッサ1001は、プログラムをストレージ1003から読み出してメインメモリ1002に展開し、プログラムに従って上述の処理を実行する。なお、プログラムは、ネットワークを介してコンピュータシステム1000に配信されてもよい。
なお、上述の実施形態においては、建設機械100が油圧ショベルであることとした。上述の実施形態で説明した構成要素は、油圧ショベルとは別の、作業機を有する建設機械に適用可能である。
Claims (8)
- アーム及びチルトバケットを含む作業機を備える建設機械の制御システムであって、
前記チルトバケットと第1設計面との距離及び前記チルトバケットと前記第1設計面に隣接する第2設計面との距離に基づいて、前記第1設計面及び前記第2設計面から制御対象面を決定する決定部と、
前記決定部により決定された前記制御対象面に基づいて、前記チルトバケットのチルト軸を制御する作業機制御部と、
前記制御対象面と前記制御対象面以外の面とを異なる表示形態で表示装置に表示させる表示制御部と、
を備える建設機械の制御システム。 - 入力装置が操作されることにより生成される入力データを取得する入力データ取得部を備え、
前記決定部は、前記入力データに基づいて、前記第1設計面及び前記第2設計面から前記制御対象面を決定する、
請求項1に記載の建設機械の制御システム。 - 前記建設機械の少なくとも一部を操作する操作装置が操作されることにより生成される操作データを取得する操作データ取得部を備え、
前記作業機制御部は、前記操作データに基づいて、特定操作が維持されているか否かを判定し、前記特定操作が維持されている期間において、前記制御対象面を維持した状態で前記チルト軸を制御する、
請求項1又は請求項2に記載の建設機械の制御システム。 - 前記特定操作は、前記アームを駆動する操作を含む、
請求項3に記載の建設機械の制御システム。 - 前記特定操作は、前記建設機械の走行体を駆動する操作を含む、
請求項4に記載の建設機械の制御システム。 - 前記決定部は、前記第1設計面及び前記第2設計面のうち前記チルトバケットとの距離が短い設計面を制御対象面に決定し、
前記制御対象面が前記第1設計面に決定されている場合において、前記作業機制御部は、前記チルトバケットとの距離が短い設計面が前記第1設計面から前記第2設計面に変化しても、前記特定操作が維持されている期間において、前記制御対象面を前記第1設計面に維持した状態で前記チルト軸を制御する、
請求項3から請求項5のいずれか一項に記載の建設機械の制御システム。 - アーム及びチルトバケットを含む作業機を備える建設機械の制御方法であって、
前記チルトバケットと記第1設計面との距離及び前記チルトバケットと前記第1設計面に隣接する第2設計面との距離に基づいて、前記第1設計面及び前記第2設計面から制御対象面を決定することと、
決定された前記制御対象面に基づいて、前記チルトバケットのチルト軸を制御することと、
前記制御対象面と前記制御対象面以外の面とを異なる表示形態で表示装置に表示させることと、
を含む建設機械の制御方法。 - アーム及びチルトバケットを含む作業機を備える建設機械の制御方法であって、
入力装置の操作により生成される入力データを取得することと、
前記入力データに基づいて、第1設計面及び前記第1設計面に隣接する第2設計面から制御対象面を決定することと、
決定された前記制御対象面に基づいて、前記チルトバケットのチルト軸を制御することと、
を含む建設機械の制御方法。
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| DE112020000308.6T DE112020000308T5 (de) | 2019-01-31 | 2020-01-09 | Steuersystem für baumaschinen, baumaschine und steuerverfahren für baumaschinen |
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| US11669073B2 (en) * | 2020-11-24 | 2023-06-06 | Caterpillar Trimble Control Technologies Llc | Velocity control for construction machines |
| EP4317596B1 (en) * | 2021-03-31 | 2026-02-04 | Sumitomo Heavy Industries, LTD. | Excavator and excavator control device |
| JP7780904B2 (ja) * | 2021-09-30 | 2025-12-05 | 株式会社小松製作所 | 作業機械を制御するためのシステムおよび方法 |
| JP7786910B2 (ja) * | 2021-09-30 | 2025-12-16 | 株式会社小松製作所 | 作業機械を制御するためのシステム、方法およびプログラム |
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| US20250250774A1 (en) | 2025-08-07 |
| KR102580186B1 (ko) | 2023-09-18 |
| DE112020000308T5 (de) | 2021-09-30 |
| JP7315333B2 (ja) | 2023-07-26 |
| US20220120059A1 (en) | 2022-04-21 |
| CN113272498B (zh) | 2023-04-11 |
| US12312775B2 (en) | 2025-05-27 |
| KR20210095935A (ko) | 2021-08-03 |
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