WO2023054245A1 - 作業機械のための表示システムおよび作業機械のための表示方法 - Google Patents
作業機械のための表示システムおよび作業機械のための表示方法 Download PDFInfo
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- WO2023054245A1 WO2023054245A1 PCT/JP2022/035649 JP2022035649W WO2023054245A1 WO 2023054245 A1 WO2023054245 A1 WO 2023054245A1 JP 2022035649 W JP2022035649 W JP 2022035649W WO 2023054245 A1 WO2023054245 A1 WO 2023054245A1
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- Prior art keywords
- work machine
- engine
- stop control
- display
- delay
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- 239000000446 fuel Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
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- 230000001934 delay Effects 0.000 description 3
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Images
Classifications
-
- 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
- E02F9/24—Safety devices, e.g. for preventing overload
-
- 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
-
- 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
- E02F9/16—Cabins, platforms, or the like, for drivers
-
- 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
- E02F9/26—Indicating devices
- E02F9/261—Surveying the work-site to be treated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/40—Special vehicles
- B60Y2200/41—Construction vehicles, e.g. graders, excavators
- B60Y2200/412—Excavators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Definitions
- the present disclosure relates to a display system for work machines and a display method for work machines.
- This application claims priority based on Japanese Patent Application No. 2021-161088 filed in Japan on September 30, 2021, the contents of which are incorporated herein.
- Patent Literature 1 discloses a technique for delaying engine stop when the exhaust system temperature exceeds a temperature threshold in response to an engine stop command from an operator. Further, in the technique described in Patent Document 1, the engine can be immediately stopped by the operator performing a predetermined operation while the engine stop is being delayed.
- Patent Document 1 does not include a configuration for canceling the control for delaying and stopping the engine and returning to normal engine operation while the engine stop is being delayed. I didn't.
- the present disclosure has been made in view of the above circumstances, and provides an engine stop system for a work machine and a method for stopping the engine of a work machine that can stop the control during the control that delays the stop of the engine. intended to provide
- One aspect of the present disclosure is a display system for a work machine that includes a display that displays an image of the surroundings of the work machine and a function related to delay stop control of the engine of the work machine.
- the control can be stopped during the control delaying the stop of the engine.
- FIG. 1 is a schematic diagram showing the configuration of a work machine according to an embodiment of the present disclosure
- FIG. FIG. 2 is a diagram showing the internal configuration of a cab according to an embodiment of the present disclosure
- FIG. 1 is a diagram showing a configuration of a rotary switch according to an embodiment of the present disclosure
- FIG. 4A and 4B are diagrams showing an operation example of a lock lever according to the embodiment of the present disclosure
- FIG. 1 is a schematic block diagram showing the hardware configuration of a control system according to an embodiment of the present disclosure
- FIG. 4 is a flow chart showing an operation example of the control system according to the embodiment of the present disclosure
- FIG. 4 is a diagram showing a display example according to the embodiment of the present disclosure
- FIG. 4 is a diagram showing a display example according to the embodiment of the present disclosure
- FIG. FIG. 4 is a diagram showing a display example according to the embodiment of the present disclosure
- FIG. FIG. 4 is a diagram showing a display example according to the embodiment of the present disclosure
- FIG. 4 is a diagram showing a display example according to the embodiment of the present disclosure
- FIG. 3 is a functional block diagram according to an embodiment of the present disclosure
- FIG. 1 is a schematic diagram showing the configuration of a working machine 100 according to an embodiment of the present disclosure.
- the work machine 100 operates at a construction site and constructs a construction target such as earth and sand.
- a work machine 100 according to an embodiment of the present disclosure is, for example, a hydraulic excavator.
- the work machine of the present disclosure may be other work machines such as, for example, dump trucks, wheel loaders, and motor graders.
- Work machine 100 includes traveling body 110 , revolving body 120 , work machine 130 and cab 140 .
- the work machine 100 according to the embodiment of the present disclosure performs operator authentication by performing wireless communication with an operator terminal 300 such as a smartphone owned by the operator using a short-range wireless communication method.
- the traveling body 110 supports the work machine 100 so that it can travel.
- the traveling body 110 includes two crawler belts 111 provided on the left and right sides, and two traveling motors 112 for driving each crawler belt 111 .
- the revolving body 120 is supported by the traveling body 110 so as to be able to revolve about a revolving center.
- the work machine 130 is hydraulically driven.
- Work implement 130 is supported on the front portion of revolving body 120 so as to be vertically drivable.
- the operator's cab 140 is a space for an operator to operate the work machine 100 .
- the driver's cab 140 is provided in the front left portion of the revolving body 120 .
- the vertical, horizontal, and longitudinal directions are determined with the revolving body 120 as a reference.
- a portion of the revolving body 120 to which the work implement 130 is attached is referred to as a front portion.
- the front portion is referred to as the rear portion
- the left portion is referred to as the left portion
- the right portion is referred to as the right portion.
- the swing body 120 includes an engine 121 , a hydraulic pump 122 , a control valve 123 , a swing motor 124 and a fuel injection device 125 .
- the engine 121 is a prime mover that drives the hydraulic pump 122 .
- Engine 121 is an example of a power source.
- a starter motor 1211 is provided in the engine 121 . The engine 121 is started by rotation of the starter motor 1211 .
- the hydraulic pump 122 is a variable displacement pump driven by the engine 121.
- a hydraulic pump 122 supplies hydraulic oil to each actuator via a control valve 123 .
- Each actuator includes boom cylinder 131C, arm cylinder 132C, bucket cylinder 133C, travel motor 112, and swing motor 124.
- the control valve 123 controls the flow rate of hydraulic oil supplied from the hydraulic pump 122 .
- the swing motor 124 is driven by hydraulic oil supplied from the hydraulic pump 122 via the control valve 123 to swing the swing body 120 .
- Fuel injector 125 injects fuel into engine 121 .
- Work implement 130 includes boom 131, arm 132, bucket 133, boom cylinder 131C, arm cylinder 132C, and bucket cylinder 133C.
- the base end of the boom 131 is attached to the revolving body 120 via a boom pin.
- Arm 132 connects boom 131 and bucket 133 .
- the base end of the arm 132 is attached to the tip of the boom 131 via an arm pin.
- the bucket 133 includes a blade for excavating earth and sand and a container for containing the excavated earth and sand.
- the base end of the bucket 133 is attached to the tip of the arm 132 via a bucket pin.
- the boom cylinder 131C is a hydraulic cylinder for operating the boom 131.
- a base end portion of the boom cylinder 131 ⁇ /b>C is attached to the revolving body 120 .
- a tip portion of the boom cylinder 131 ⁇ /b>C is attached to the boom 131 .
- Arm cylinder 132C is a hydraulic cylinder for driving arm 132 .
- a base end portion of the arm cylinder 132C is attached to the boom 131 .
- a tip portion of the arm cylinder 132C is attached to the arm 132 .
- Bucket cylinder 133C is a hydraulic cylinder for driving bucket 133 .
- a base end of the bucket cylinder 133C is attached to the arm 132 .
- a tip of the bucket cylinder 133 ⁇ /b>C is attached to a link member connected to the bucket 133 .
- a door 141 is provided on the left side of the operator's cab 140 for an operator to board.
- the door 141 is provided with a lock actuator 1411 for locking the door 141 and a door switch 1412 for unlocking.
- FIG. 2 is a diagram showing the internal configuration of the driver's cab 140 according to the embodiment of the present disclosure.
- FIG. 3 is a diagram showing the configuration of the rotary switch 144 according to the embodiment of the present disclosure.
- FIG. 4 is a diagram showing an operation example of the lock lever 143LL according to the embodiment of the present disclosure.
- a driver's seat 142, an operation device 143, a rotary switch 144, and a touch panel 145D are provided in the driver's cab 140. As shown in FIG. As shown in FIG.
- the rotary switch 144 has an OFF position 1442, an ACC (accessory) position 1443, an IG (ignition) position 1444, and an ST (start) position by rotating the rotating portion 1441 as indicated by the dashed arrow. ) is a four-position switch at position 1445 .
- the finger is released from the rotary switch 144 at the ST position 1445, it automatically returns to the IG position 1444 by a spring mechanism (not shown).
- the OFF position 1442 an instruction to stop the engine 121 is issued.
- the ACC position 1443 an instruction to stop the engine 121 is issued, and an instruction to put a predetermined device into an operating state is issued.
- an instruction is given to put the engine 121 into operation.
- an instruction to start the engine 121 is given.
- the rotary switch 144 is an example of an engine ignition switch.
- the ignition switch for example, can be configured as a key switch or a push switch instead of a rotary switch.
- Rotary switch 144 outputs electrical signals corresponding to OFF position 1442 , ACC position 1443 , IG position 1444 , or ST position 1445 .
- the operation device 143 is a device for driving the traveling body 110, the revolving body 120, and the working machine 130 by manual operation by the operator.
- the operating device 143 includes a left operating lever 143LO, a right operating lever 143RO, a left foot pedal 143LF, a right foot pedal 143RF, a left travel lever 143LT, a right travel lever 143RT, and a lock lever 143LL.
- the left operating lever 143LO is provided on the left side of the driver's seat 142.
- the right operating lever 143RO is provided on the right side of the driver's seat 142. As shown in FIG.
- the left operating lever 143LO is an operating mechanism for rotating the rotating body 120 and excavating/dumping the arm 132 . Specifically, when the operator of work machine 100 tilts left operation lever 143LO forward, arm 132 performs a dump operation. When the operator of work machine 100 tilts left operation lever 143LO rearward, arm 132 excavates. Further, when the operator of work machine 100 tilts left operation lever 143LO rightward, revolving body 120 turns rightward. When the operator of work machine 100 tilts left operation lever 143LO leftward, revolving body 120 turns left.
- the revolving body 120 when the left operating lever 143LO is tilted in the front-rear direction, the revolving body 120 turns to the right or left, and when the left control lever 143LO is tilted in the left-right direction, the arm 132 performs excavation or excavation. Dump operation is allowed.
- the right operation lever 143RO is an operation mechanism for performing excavation/dumping operations of the bucket 133 and raising/lowering operations of the boom 131. Specifically, when the operator of work machine 100 tilts right operation lever 143RO forward, boom 131 is lowered. Further, when the operator of work machine 100 tilts right operation lever 143RO rearward, boom 131 is raised. When the operator of work machine 100 tilts right operation lever 143RO rightward, bucket 133 is dumped. When the operator of work machine 100 tilts right operation lever 143RO leftward, bucket 133 performs an excavation operation.
- the bucket 133 when the right operating lever 143RO is tilted in the front-rear direction, the bucket 133 is dumped or excavated, and when the right control lever 143RO is tilted in the left-right direction, the boom 131 is raised or lifted. Lowering may be performed.
- the left foot pedal 143LF is arranged on the left side of the floor in front of the driver's seat 142 .
- the right foot pedal 143RF is arranged on the right side of the floor in front of the driver's seat 142 .
- the left travel lever 143LT is pivotally supported by the left foot pedal 143LF, and configured so that the inclination of the left travel lever 143LT and the depression of the left foot pedal 143LF are interlocked.
- the right running lever 143RT is pivotally supported by the right foot pedal 143RF, and configured so that the tilting of the right running lever 143RT and the depression of the right foot pedal 143RF are interlocked.
- the left foot pedal 143LF and the left traveling lever 143LT correspond to rotational driving of the left crawler belt of the traveling body 110. Specifically, when the operator of work machine 100 tilts left foot pedal 143LF or left travel lever 143LT forward, the left crawler belt rotates forward. When the operator of work machine 100 pushes left foot pedal 143LF or left travel lever 143LT backward, the left crawler belt rotates backward.
- the right foot pedal 143RF and the right traveling lever 143RT correspond to rotational driving of the right crawler belt of the traveling body 110. Specifically, when the operator of work machine 100 tilts right foot pedal 143RF or right travel lever 143RT forward, the right crawler belt rotates forward. Further, when the operator of work machine 100 tilts right foot pedal 143RF or right travel lever 143RT backward, the right crawler belt rotates backward.
- the lock lever 143LL is a safety device provided to prevent the actuators of the work implement 130 and the like from operating unintentionally by the operator in a non-operating state.
- the lock lever 143LL is arranged along the side surface of the left console box 142LC erected on the left side of the driver's seat 142 so as to be rotatable between a locked position and an unlocked position.
- the lock lever 143LL indicated by solid lines is in the locked position
- the lock lever 143LL indicated by chain lines is in the unlocked position.
- lock lever 143LL By setting the lock lever 143LL to the lock position, a switch that operates in conjunction with the lock lever 143LL is turned on.
- a state in which lock lever 143LL is in the locked position is an example of a state in which work implement 130 is in a locked state.
- a state in which lock lever 143LL is in the unlocked position is an example of work implement 130 in the unlocked state.
- the lock lever 143LL When the lock lever 143LL is in the locked position, the lock lever 143LL is rotated to a position hidden behind the left console box of the driver's seat 142, that is, to a position retracted from the passage between the door 141 and the driver's seat 142. locked. This allows the operator to move between the door 141 and the driver's seat 142 .
- the lock lever 143LL when the lock lever 143LL is in the unlocked position, the lock lever 143LL is tilted forward to block the passage between the driver's seat 142 and the door 141 and is locked. .
- the revolving body 120 is provided with a plurality of cameras 126 that capture images of the surroundings of the work machine 100 .
- the revolving body 120 includes a camera for imaging the front area, a camera for imaging the left side area, a camera for imaging the rear area, and a camera for imaging the right side area.
- Four cameras 126 are provided.
- FIG. 5 is a schematic block diagram showing the hardware configuration of control system 145 according to an embodiment of the present disclosure.
- solid lines represent power lines and dashed lines represent signal lines.
- the dashed-dotted line represents wireless communication.
- the control system 145 includes a power supply section 201 , a starter signal unit 202 , a gateway function controller 203 , a monitor controller 204 , a control controller 205 and an engine controller 206 .
- Starter signal unit 202, gateway function controller 203, monitor controller 204, control controller 205 and engine controller 206 are connected to each other via an in-vehicle network such as CAN (Controller Area Network) or Ethernet (registered trademark).
- the power supply unit 201 supplies electrical energy to each device that configures the control system 145 .
- the starter signal unit 202 receives signal inputs from the door switch 1412 , the rotary switch 144 , the operator terminal 300 and the monitor controller 204 .
- Starter signal unit 202 outputs a control signal such as a start signal to gateway function controller 203, monitor controller 204, control controller 205, engine controller 206, lock actuator 1411 or starter motor 1211 based on the input signal.
- the controller to which the activation signal is input is activated by electrical energy supplied by the power supply unit 201 and operates.
- Starter signal unit 202 is an example of an activation unit that activates controller 205 . It should be noted that the starter signal unit 202 always operates by being supplied with electric energy from the power supply section 201 even when the other controllers are in a stopped state.
- the starter signal unit 202 when the work machine 100 is not started, only the communication section with the operator terminal 300 is activated, and the other components may be in a dormant state, or may be activated intermittently. may be configured to
- the starter signal unit 202 also outputs control signals such as the EDS signal, the ACCON signal, and the IGON signal to the monitor controller 204, the control controller 205, and the engine controller 206 via the gateway function controller 203.
- An EDS (Engine Delay Shutdown) signal is a signal that indicates the execution state of delay stop control.
- the delayed stop control is a control to delay the stop of the engine 121 until a predetermined condition is satisfied and then stop the engine 121 when there is a stop instruction to stop the engine 121 of the work machine 100. is.
- the starter signal unit 202 also determines, for example, whether to start the delay stop control, whether to stop the delay stop control, whether to end the delay stop control, and the like.
- the predetermined condition is a condition for determining whether or not to stop the engine 121. If the predetermined condition is satisfied, the engine 121 is stopped, and if the predetermined condition is not satisfied, the engine 121 is restarted. Operation continues under delay stop control.
- the predetermined condition is, for example, that the temperature of the exhaust system such as the temperature of the urea water injector in the urea SCR (Selective Catalytic Reduction) system, the temperature related to the engine, and the like are below a predetermined temperature threshold; For example, the duration of the engine 121 operating in a low-speed idling state is equal to or greater than a predetermined time threshold.
- the ACCON (accessory on) signal turns on when the rotary switch 144 is in a position other than the OFF position 1442 and turns off when it is in the OFF position 1442 .
- the IGON (ignition on) signal is turned on at IG position 1444 or ST position 1445 and turned off at OFF position 1442 or ACC position 1443, for example.
- the starter signal unit 202 receives a signal indicating whether the lock lever 143LL is in the locked position or the unlocked position from the monitor controller 204, the control controller 205, the engine controller 206, etc. via the gateway function controller 203, and delay stop control.
- a signal indicating a temperature or the like used when determining a predetermined condition or a signal indicating the result of the determination is input.
- the gateway function controller 203 relays communication between controllers such as the starter signal unit 202, the monitor controller 204, the control controller 205, and the engine controller 206.
- the monitor controller 204 controls the display by the touch panel 145D provided in the control system 145 and notifies the occurrence of the touch operation on the touch panel 145D.
- the control system 145 may include a monitor and physical buttons that do not have a touch input function, such as an LCD (Liquid Crystal Display), instead of the touch panel 145D.
- the monitor controller 204 controls display on the monitor and notifies pressing of the physical button.
- the controller 205 acquires various data related to the hydraulic equipment that controls the operation of the working machine 130 using a sensor (not shown) and outputs a control signal for controlling the hydraulic equipment according to the operation of the operating device 143 . That is, the controller 205 controls driving of the boom cylinder 131C, the arm cylinder 132C, the bucket cylinder 133C, the travel motor 112, the turning motor 124, and the like.
- the controller 205 is an example of a vehicle body control unit that outputs a control signal for driving the vehicle body of the work machine 100 with the power supplied by the power source.
- the engine controller 206 acquires various data related to the engine 121 using a sensor (not shown) and controls the engine 121 by instructing the fuel injection device 125 on the fuel injection amount.
- the monitor controller 204, the control controller 205, the engine controller 206, and the like receive control signals such as the EDS signal, the ACCON signal, and the IGON signal from the starter signal unit 202, and receive the EDS signal, the ACCON signal, the IGON signal, and the like. Preset processing is executed based on the control signal. For example, when the IGON signal is on or the ACCON signal is on, the monitor controller 204 performs screen display on the touch panel 145D. For example, when the IGON signal is off and the ACCON signal is off, the monitor controller 204 turns off the screen display of the touch panel 145D. For example, when the EDS signal is on, the controller 205 stops driving the work implement 130 .
- Engine controller 206 operates engine 121 in a low speed idling state, for example, when the EDS signal is on. Also, the engine controller 206 stops the engine 121 when the IGON signal is off.
- the control system 145 has a function of performing login processing for an operator in the operator's cab 140 by operating the touch panel 145D.
- the control system 145 may include a controller that performs the login process, or the starter signal unit 202, the gateway function controller 203, and the monitor controller 204 may have the function of performing the login process.
- the control system 145 displays an operator ID selection screen on the touch panel 145D via the monitor controller 204, and accepts selection of the operator ID. If the selected operator ID indicates an authorized operator who is in the vicinity of work machine 100, control system 145 authenticates that the operator in cab 140 is authorized to operate.
- Monitor controller 204 is an example of an authentication unit that authenticates an operator of work machine 100 .
- the operator terminal 300 functions as a peripheral of the short-range wireless communication system by executing a pre-installed startup program for the work machine 100 .
- the activation program When executed, operator terminal 300 displays a list of work machines 100 and accepts selection of a work machine 100 to be activated from the operator.
- operator terminal 300 Upon accepting the selection of work machine 100 , operator terminal 300 starts transmitting an advertisement packet including the operator ID and the machine ID of selected work machine 100 , for example.
- FIG. 6 is a flowchart illustrating an example operation of control system 145 according to an embodiment of the present disclosure.
- 7 to 11 are diagrams showing display examples of the touch panel 145D according to the embodiment of the present disclosure.
- the processing shown in FIG. 6 is started after the engine 121 is activated. It is assumed that the IGON signal is on and the rotary switch 144 is set to the IG position 1444 at the start of the processing shown in FIG. Further, the touch panel 145D displays a normal display screen 145D1, which is displayed when the delay stop control shown in FIG. 7 is not executed, for example.
- the normal display screen 145D1 includes an overhead image 145DA11 based on images captured by the four cameras 126 and a computer graphics image of the work machine 100, an image 145DA12 captured by one of the four cameras 126, and an image 145DA12 captured by one of the four cameras 126. It includes predetermined sensor information in 100, icons representing operation buttons, and the like.
- the starter signal unit 202 of the control system 145 will mainly perform the processing of each step.
- the monitor controller 204, the control controller 205, the engine controller 206, etc. instead of the starter signal unit 202, may execute a part or all of the processing of each step.
- the rotary switch 144 is abbreviated as "R-SW”.
- delay stop control is abbreviated as "EDS”.
- the starter signal unit 202 first determines whether the rotary switch 144 is at the ACC position 1443 or the OFF position 1442 (step S11). If it is neither the ACC position 1443 nor the OFF position 1442 (step S11: NO), the starter signal unit 202 repeats the determination of step S11 at predetermined intervals.
- the starter signal unit 202 determines whether or not the delay stop control operation condition (EDS operation condition) is satisfied. (step S12).
- the operating condition for the delay stop control is a condition for determining whether to start the delay stop control.
- the starter signal unit 202 starts the delay stop control to stop the engine 121 under the delay stop control. If the operating conditions for the delay stop control are not satisfied, the starter signal unit 202 stops the engine 121 without executing the delay stop control.
- the operation condition of the delayed stop control is, for example, that the temperature at one or more predetermined locations in the exhaust system or the like is equal to or higher than each predetermined temperature threshold.
- the predetermined temperature threshold is, for example, a temperature value above which it is undesirable to stop the engine 121 .
- step S12 If the operating conditions for the delay stop control are satisfied (step S12: YES), the starter signal unit 202 turns on the EDS signal (step S13), indicating that the delay stop control is in operation. , the delay stop control is displayed on the touch panel 145D (step S14).
- FIG. 8 shows an example of the display screen 145D2 during delay stop control operation display.
- the display screen 145D2 includes a bird's-eye view image 145DA11 and a display area 145DA2 indicating that the delay stop control is in operation. In this case, the display area 145DA2 indicates that the delay stop control is in operation by the character string "engine delay shutdown in operation".
- the starter signal unit 202 determines whether or not the end condition of the delay stop control (EDS end condition) is satisfied (step S15).
- the condition for ending the delay stop control is a condition for determining whether or not to stop the engine 121 to end the delay stop control.
- the starter signal unit 202 stops the engine 121 and ends the delay stop control.
- a condition for terminating the delayed stop control is, for example, that the temperature at one or more predetermined locations in the exhaust system or the like is less than each predetermined temperature threshold.
- the predetermined temperature threshold is, for example, a temperature value below which the engine 121 can be properly stopped.
- the end condition of the delay stop control is, for example, that a predetermined time or more has passed since the start of the delay stop control.
- the predetermined time is, for example, enough time for the temperature to drop.
- step S15 If the conditions for ending the delay stop control are satisfied (step S15: YES), the starter signal unit 202 turns off the EDS signal (step S16), and the delay stop control is displayed to indicate that the delay stop control has ended.
- a stop control end notification is displayed on the touch panel 145D (step S17).
- FIG. 9 shows an example of the display screen 145D3 in the delay stop control end notification display.
- the display screen 145D3 includes a bird's-eye view image 145DA11 and a display area 145DA3 indicating that the delay stop control has ended. In this case, the display area 145DA3 indicates that the delay stop control has ended by the character string "Engine delay shutdown has ended.”
- the starter signal unit 202 turns off the IGON signal when the delay stop control end notification is displayed on the touch panel 145D (step S17), or when the operation condition of the delay stop control is not satisfied (step S12: NO). (step S18).
- engine controller 206 stops engine 121 .
- the starter signal unit 202 determines whether the rotary switch 144 is at the ACC position 1443 (step S19). If the rotary switch 144 is at the ACC position 1443 (step S19: YES), the starter signal unit 202 displays the notification of the end of the delay stop control in step S17, and then displays the notification of the end of the delay stop control in step S17. After a predetermined time has elapsed, the normal display screen 145D1 is displayed on the touch panel 145D (step S20). When rotary switch 144 is at ACC position 1443 (step S19: YES), starter signal unit 202 continues to display normal display screen 145D1 on touch panel 145D (step S20).
- step S21 determines whether the rotary switch 144 is at the OFF position 1442 (step S21). If the rotary switch 144 is at the OFF position 1442 (step S21: YES), the starter signal unit 202 waits a predetermined time after displaying the notification of the end of the delay stop control when the notification of the end of the delay stop control is displayed in the step S17. After the time has elapsed, the display on touch panel 145D is turned off (step S22), and the processing shown in FIG. 6 is terminated. If it is determined in step S12 that the operation condition for the delay stop control is not satisfied, the touch panel 145D is turned off after a predetermined period of time (step S22), and the process shown in FIG. 6 is terminated.
- step S21: NO) If the rotary switch 144 is not in the OFF position 1442 (step S21: NO), the starter signal unit 202 outputs a signal corresponding to the position of the rotary switch 144, and the control system 145 outputs a signal corresponding to the position of the rotary switch 144. process.
- step S15 if the condition for ending the delay stop control is not satisfied (step S15: NO), the starter signal unit 202 determines whether or not the rotary switch 144 is at the IG position 1444 (step S23). ). If the rotary switch 144 is not in the IG position 1444 (step S23: NO), the starter signal unit 202 determines again after a predetermined period of time whether or not the end condition of the delay stop control (EDS end condition) is satisfied. (Step S15).
- EDS end condition end condition
- the starter signal unit 202 determines whether the lock lever 143LL is at the lock position (step S24). If the lock lever 143LL is in the locked position (step S24: YES), the starter signal unit 202 turns off the EDS signal (step S25), and cancels the delay stop control. Display is performed on the touch panel 145D (step S26).
- FIG. 10 shows an example of the display screen 145D4 showing the cancellation acceptance display.
- the display screen 145D4 includes a bird's-eye view image 145DA11 and a display area 145DA4 for displaying that the delay stop control has been canceled. In this case, the display area 145DA4 indicates that the delay stop control has been canceled by the character string "Engine delay shutdown has been cancelled.”
- the starter signal unit 202 displays the normal display screen 145D1 on the touch panel 145D (step S27) after a predetermined time has elapsed since the cancellation acceptance display was performed in step S26.
- the starter signal unit 202 executes the process of step S11 again.
- step S24 the starter signal unit 202 displays a cancellation refusal display on the touch panel 145D, which is a display to the effect that cancellation of the delay stop control is refused (step S28). ).
- FIG. 11 shows an example of the display screen 145D5 in the display of cancellation acceptance.
- the display screen 145D5 includes a bird's-eye view image 145DA11 and a display area 145DA5 for displaying that the cancellation of the delay stop control has been rejected.
- the display area 145DA5 rejects the cancellation of the delay stop control by the character string "If you want to cancel the engine delay shutdown, move the lock lever to the lock position and then turn the key position to IG-ON.” and that the lock lever 143LL is urged to be placed in the locked position.
- the starter signal unit 202 determines again after a predetermined time whether or not the end condition of the delay stop control (EDS end condition) is satisfied (step S15). ).
- step S12 NO
- step S18 the engine 121 is stopped
- step S22 the touch panel 145D is turned off
- the control system 145 determines that the operating conditions for the delay stop control are satisfied (step S12: YES ), the display during operation of the delay stop control (FIG. 8) is displayed on the touch panel 145D (step S14), and when the conditions for ending the delay stop control are met (step S15: YES), the notification display of the end of the delay stop control (FIG. 9) is displayed.
- the touch panel 145D is used (step S17), the engine 121 is stopped (step S18), and the touch panel 145D is turned off (step S22).
- step S23 YES
- step S15 NO
- step S15 NO
- step S15 NO
- step S24 YES
- step S25 the delay stop control is stopped
- step S26 a cancellation reception display
- step S27 a normal display
- step S23 YES
- step S15 NO
- step S24 a cancellation refusal display
- step S28 the delay stop control is continued (step S15 and thereafter).
- the delay stop control can be stopped.
- an additional condition is that the lock lever 143LL is in the locked position. According to this, when the delay stop control is stopped, the lock lever 143LL is in the lock position, so that the work machine 100 is prevented from being operated by an unintended operation of the operation device 143 when the delay stop control is stopped. be able to.
- a predetermined button on the touch panel 145D is touched or a predetermined switch is pressed. may be performed by a predetermined input operation.
- control system 145 In the control system 145 according to the above-described embodiment, a part of the components constituting the control system 145 may be mounted inside the work machine 100 and the other components may be provided outside the work machine 100 .
- the starter signal unit 202, the gateway function controller 203, the monitor controller 204, the control controller 205, the engine controller 206, etc. which are the devices included in the above-described control system 145, are computers such as microcomputers and CPUs (Central Processing Units), It can be configured using hardware such as computer peripheral circuits and peripheral devices.
- the computer may also be configured using a custom LSI (Large Scale Integrated Circuit) such as a PLD (Programmable Logic Device). Examples of PLD include PAL (Programmable Array Logic), GAL (Generic Array Logic), CPLD (Complex Programmable Logic Device), and FPGA (Field Programmable Gate Array). In this case, part or all of the functions implemented by the processor may be implemented by the integrated circuit.
- FIG. 12 is a functional block diagram according to an embodiment of the present disclosure;
- a stop system 400 shown in FIG. 12 has a configuration corresponding to the control system 145 shown in FIG.
- the display unit 403 may be omitted.
- the engine stop control unit 401 delays the stop of the engine 121 until a predetermined condition is satisfied, and then executes delay stop control to stop the engine 121. do.
- the stop instruction corresponds to an input operation for setting the rotary switch 144 to the OFF position 1442 or the ACC position 1443, for example.
- the predetermined condition corresponds to the delay stop control end condition determined in step S15.
- the engine stop control section 401 corresponds to the starter signal unit 202 that performs the determination process of step S11, the determination process of step S15, the process of step S18, and the like.
- the engine stop control canceling unit 402 cancels the delay stop control when there is a cancel instruction to cancel the stop instruction (step S23: YES) and when the lock lever 143LL of the work machine 100 is in the lock position (step S24: YES).
- Step S25 When the lock lever 143LL is in the unlocked position (Step S24: NO), the delay stop control is continued.
- the cancel instruction corresponds to an input operation of switching the rotary switch 144 from the OFF position 1442 or the ACC position 1443 to the IG position 1444, for example.
- the engine stop control canceling section 402 corresponds to the starter signal unit 202 that performs the determination processing of step S23, the determination processing of step S24, the processing of step S25, and the like.
- step S23: YES when the cancellation instruction is given (step S23: YES) and the lock lever 143LL is in the unlocked position (step S24: NO), the engine stop control canceling unit 402 receives the cancellation instruction again.
- step S24: YES When the lock lever 143LL is in the locked position (step S23: YES) (step S24: YES), the delay stop control may be stopped.
- step S23 when there is a cancel instruction (step S23: YES), the display unit 403 displays the contents when the lock lever 143LL is in the locked position (step S24: YES) and when it is in the unlocked position (step S24: NO). may be changed to a cancellation reception display (step S26) or a cancellation refusal display (step S28).
- step S23 when there is a cancellation instruction (step S23: YES), and when the lock lever 143LL is at the unlocked position (step S24: NO), the display unit 403 displays a prompt to move the lock lever 143LL to the locked position (see FIG. 11). ) (step S28).
- step S23 when there is a cancellation instruction (step S23: YES) and the lock lever 143LL is in the lock position (step S24: YES), the display unit 403 displays that the delay stop control is canceled (FIG. 10). (Step S26) You may do so.
- the cancellation instruction is performed by turning on the ignition switch of the engine 121, for example.
- the operation of turning on the ignition switch corresponds to the operation of setting the rotary switch 144 to the IG position 1444 .
- the cancellation instruction is performed by an operation of turning on the ignition switch of the engine 121 and a predetermined input operation to a predetermined input device.
- the predetermined input operation with respect to the predetermined input device is the touch of a predetermined button on the touch panel 145D or a predetermined input device such as the touch panel 145D or a predetermined switch, which are shown as modifications of the above embodiment. It corresponds to a predetermined input operation such as pressing the switch of .
- the control can be stopped while the engine stop is being delayed.
- the stop system 400 also functions as a "display system" for the work machine 100.
- the display system for the work machine 100 includes a display unit 403 that displays the image of the surroundings of the work machine 100 and the functions related to the delay stop control of the engine of the work machine 100.
- the image of the surroundings of the work machine 100 is, for example, an overhead view image 145DA11 of the surroundings of the work machine 100 viewed from above, as shown in FIGS. 8 to 11 .
- the image of the surroundings of work machine 100 is not limited to this. It may be of any aspect.
- display of functions related to engine delay stop control of work machine 100 is, for example, display areas 145DA2 to 145DA5 shown in FIGS. 8 to 11, respectively. By doing so, the operator can grasp the state of the function related to the delay stop control while confirming the safety situation around the work machine 100 .
- the display unit 403 displays, as an example of a display of a function related to the delay stop control of the engine of the work machine 100, that the delay stop control of the engine of the work machine 100 is in operation, as shown in the display area 145DA2 of FIG. 8, for example. display to that effect. By doing so, the operator can grasp the situation around work machine 100 and that the delayed stop control is in operation.
- the display system further includes an engine stop control canceling unit 402 that cancels the engine delay stop control based on acceptance of cancellation of the engine delay stop control of work machine 100 (the above-described cancellation instruction).
- Display unit 403 displays, as an example of a display of a function related to the delay stop control of the engine of work machine 100, a display area 145DA5 of FIG. display for By doing so, the operator can grasp the situation around work machine 100 and the operation required to cancel the engine delay stop control.
- display unit 403 indicates that the engine delay stop control of work machine 100 has been canceled, as shown in display area 145DA4 in FIG. display. By doing so, the operator can grasp the situation around work machine 100 and that the delayed engine stop control has been cancelled.
- acceptance of cancellation of the delayed stop control of the engine of work machine 100 is explained as moving the lock lever to the lock position and then turning the key position to IG-ON.
- the form is not limited to this aspect.
- acceptance of cancellation of the delayed stop control of the engine of work machine 100 may be based on the operator's operation on the monitor (touch panel 145D).
- the operator may accept cancellation of the delay stop control by performing a touch operation on a dedicated button displayed on the monitor.
- the operator can perform the operation of canceling the delay stop control while checking the image of the surroundings of work machine 100 displayed on the monitor. In other words, the operator does not have to take his or her eyes off the surrounding images until the operation of canceling the delay stop control is performed, thereby further enhancing safety.
- the engine stop control canceling unit 402 of the stop system 400 performs the delay stop control when the lock lever 143LL of the work machine 100 is in the lock position when there is a cancellation instruction to cancel the engine stop instruction. It has been explained that the delay stop control is continued when the operation is stopped and the lock lever 143LL is in the unlocked position.
- the stop system 400 according to another embodiment may always stop the delay stop control regardless of the position of the lock lever 143LL when a cancellation instruction is given. According to the above-described stop system 400 (display system), as described above, it is possible to grasp the state of the function related to the delay stop control while confirming the safety situation around the work machine 100 from the image.
- a display system may have the following functions. That is, the display system may detect the presence of an obstacle or the like from image analysis of the image around the work machine 100, and may not accept the cancellation of the engine delay stop control when the obstacle or the like is present. .
- the display system may detect the presence of an obstacle or the like from image analysis of the image around the work machine 100, and may not accept the cancellation of the engine delay stop control when the obstacle or the like is present.
- a known trained model using neural network technology can be applied.
- control can be stopped during the control that delays stopping the engine.
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Abstract
Description
図1は、本開示の実施形態に係る作業機械100の構成を示す概略図である。作業機械100は、施工現場にて稼働し、土砂などの施工対象を施工する。本開示の実施形態に係る作業機械100は、例えば油圧ショベルである。ただし、本開示の作業機械は、例えば、ダンプトラック、ホイールローダ、モータグレーダなどの他の作業機械であってもよい。作業機械100は、走行体110、旋回体120、作業機130および運転室140を備える。本開示の実施形態に係る作業機械100は、オペレータが所持するスマートフォンなどのオペレータ端末300と近距離無線通信方式による無線通信を行うことで、オペレータの認証を行う。
旋回体120は、エンジン121、油圧ポンプ122、コントロールバルブ123、旋回モータ124、および、燃料噴射装置125を備える。エンジン121は、油圧ポンプ122を駆動する原動機である。エンジン121は、動力源の一例である。エンジン121にはセルモータ1211が設けられる。エンジン121は、セルモータ1211の回転により起動する。
作業機130は、ブーム131、アーム132、バケット133、ブームシリンダ131C、アームシリンダ132C、およびバケットシリンダ133Cを備える。
運転室140の左面には、オペレータが搭乗するためのドア141が設けられる。ドア141には、ドア141をロックするためのロックアクチュエータ1411と、ロックを解除するためのドアスイッチ1412が設けられる。
旋回体120には、作業機械100の周囲を撮像する複数のカメラ126が設けられている。なお、図1に示す例では、旋回体120には、旋回体120の周囲のうち前方領域を撮像するカメラ、左側方領域を撮像するカメラ、後方領域を撮像するカメラ、および右側方領域を撮像するカメラの4台のカメラ126が設けられている。
図5は、本開示の実施形態に係る制御システム145のハードウェア構成を示す概略ブロック図である。図5において、実線は電力線を表し、破線は信号線を表す。また、図5において一点鎖線は、無線通信を表す。
オペレータ端末300は、予めインストールされた作業機械100の起動プログラムを実行することで、近距離無線通信方式のペリフェラルとして機能する。オペレータ端末300は、起動プログラムを実行すると、作業機械100の一覧を表示させ、オペレータから起動対象の作業機械100の選択を受け付ける。オペレータ端末300は、作業機械100の選択を受け付けると、例えば、オペレータIDと選択された作業機械100の機械IDとを含むアドバタイズパケットの送信を開始する。
次に、図6~図11を参照して、制御システム145が行う遅延停止制御の動作例について説明する。図6は、本開示の実施形態に係る制御システム145の動作例を示すフローチャートである。図7~図11は、本開示の実施形態に係るタッチパネル145Dの表示例を示す図である。
以上のように、本実施形態によれば、エンジン121の停止を遅らせている遅延停止制御の間にロータリスイッチ144をIGポジション1444に操作することで遅延停止制御を中止させることができる。また、本実施形態では、IGポジション1444に操作した場合に、遅延停止制御を中止させる条件として、ロックレバー143LLがロック位置であることを追加の条件としている。これによれば、遅延停止制御を中止する場合にはロックレバー143LLがロック位置となるので、遅延停止制御の中止時に操作装置143の意図しない操作によって作業機械100が動作してしまうことを防止することができる。
以上、図面を参照して一実施形態について詳しく説明してきたが、具体的な構成は上述のものに限られることはなく、様々な設計変更等をすることが可能である。すなわち、他の実施形態においては、上述の処理の順序が適宜変更されてもよい。また、一部の処理が並列に実行されてもよい。また、タッチパネル145Dによる情報の表示に代えてあるいは情報の表示とともに、音声や報知信号によって情報を出力してもよい。また、上記実施形態では、遅延停止制御を中止させる指示をロータリスイッチ144をIGポジション1444に操作することで行うようにしたが、これに限定されない。例えば、ロータリスイッチ144をIGポジション1444に操作することに加え、例えば、タッチパネル145Dや所定のスイッチ等の所定の入力装置に対する、タッチパネル145D上の所定のボタンへのタッチや所定のスイッチの押下操作等の所定の入力操作によって行われるようにしてもよい。
上述の制御システム145が備える各機器である、スタータ信号ユニット202、ゲートウェイ機能コントローラ203、モニタコントローラ204、制御コントローラ205、エンジンコントローラ206などは、マイクロコンピュータ、CPU(Central Processing Unit)等のコンピュータと、コンピュータの周辺回路や周辺装置等のハードウェアを用いて構成することができる。また、コンピュータは、PLD(Programmable Logic Device)などのカスタムLSI(Large Scale Integrated Circuit)を用いて構成されていてもよい。PLDの例としては、PAL(Programmable Array Logic)、GAL(Generic Array Logic)、CPLD(Complex Programmable Logic Device)、FPGA(Field Programmable Gate Array)が挙げられる。この場合、プロセッサによって実現される機能の一部または全部が当該集積回路によって実現されてもよい。
次に、図12を参照して、上記実施形態に対応する本開示の実施形態に係る基本的構成例について説明する。図12は、本開示の実施形態に係る機能ブロック図である。図12に示す停止システム400は、図5に示す制御システム145に対応する構成であり、エンジン停止制御部401と、エンジン停止制御中止部402と、表示部403とを備える。ただし、表示部403は、省略してもよい。
また、作業機械100のエンジンの遅延停止制御に関する機能の表示とは、例えば、図8~図11のそれぞれに示す表示領域145DA2~145DA5である。
このようにすることで、オペレータは、作業機械100の周囲の安全状況を確認しながら、遅延停止制御に関する機能の状態を把握することができる。
このようにすることで、オペレータは、作業機械100の周囲の状況とともに、遅延停止制御が作動中であることを把握することができる。
そして、表示部403は、作業機械100のエンジンの遅延停止制御に関する機能の表示の一例として、例えば図11の表示領域145DA5に示すような、作業機械100のエンジンの遅延停止制御の中止の受け付けのための表示を行う。
このようにすることで、オペレータは、作業機械100の周囲の状況とともに、エンジンの遅延停止制御をキャンセルするために必要な操作を把握することができる。
このようにすることで、オペレータは、作業機械100の周囲の状況とともに、エンジンの遅延停止制御がキャンセルされたことを把握することができる。
例えば、作業機械100のエンジンの遅延停止制御の中止の受け付けは、オペレータによるモニタ(タッチパネル145D)への操作に基づくものであってよい。具体的には、オペレータが、モニタに表示された専用のボタンに対しタッチ操作をすることで遅延停止制御の中止を受け付けるものとしてもよい。
このようにすることで、オペレータは、モニタに表示された作業機械100の周囲の画像を確認しながら、遅延停止制御の中止の操作を行うことができる。つまり、オペレータは、遅延停止制御の中止の操作を行うまで周囲の画像から目を離さなくて済むため、安全性を一層高めることができる。
即ち、他の実施形態に係る停止システム400は、取消指示があった場合には、ロックレバー143LLの位置にかかわらず常に遅延停止制御を中止するものとしてもよい。上述の停止システム400(表示システム)によれば、上述の通り、作業機械100の周囲の安全状況を画像から確認しながら、遅延停止制御に関する機能の状態を把握することができる。
Claims (14)
- 作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御に関する機能の表示を行う表示部
を備える作業機械のための表示システム。 - 前記表示部は、前記作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御が作動中である旨の表示を行う、
請求項1に記載の作業機械のための表示システム。 - 前記作業機械のエンジンの遅延停止制御の中止の受け付けに基づいて、前記作業機械のエンジンの遅延停止制御のキャンセルを行うエンジン停止制御中止部をさらに備える
請求項1または2に記載の作業機械のための表示システム。 - 前記表示部は、前記作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御の中止の受け付けのための表示を行う、
請求項3に記載の作業機械のための表示システム。 - 前記表示部は、前記作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御をキャンセルした旨の表示を行う、
請求項3または4に記載の作業機械のための表示システム。 - 前記作業機械のエンジンの遅延停止制御の中止の受け付けは、モニタへの操作に基づくものである、
請求項3から5のいずれか一項に記載の作業機械のための表示システム。 - 前記作業機械の周囲の画像は、作業機械の周囲を上面視した俯瞰画像である、
請求項1から6のいずれか一項に記載の作業機械のための表示システム。 - 作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御に関する機能の表示を行うステップ
を備える作業機械のための表示方法。 - 前記表示を行うステップでは、前記作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御が作動中である旨の表示を行う、
請求項8に記載の作業機械のための表示方法。 - 前記作業機械のエンジンの遅延停止制御の中止の受け付けに基づいて、前記作業機械のエンジンの遅延停止制御のキャンセルを行うステップをさらに備える
請求項8または9に記載の作業機械のための表示方法。 - 前記表示を行うステップでは、前記作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御の中止の受け付けのための表示を行う、
請求項10に記載の作業機械のための表示方法。 - 前記表示を行うステップでは、前記作業機械の周囲の画像とともに、前記作業機械のエンジンの遅延停止制御をキャンセルした旨の表示を行う、
請求項10または11に記載の作業機械のための表示方法。 - 前記作業機械のエンジンの遅延停止制御の中止の受け付けは、モニタへの操作に基づくものである、
請求項10から12のいずれか一項に記載の作業機械のための表示方法。 - 前記作業機械の周囲の画像は、作業機械の周囲を上面視した俯瞰画像である、
請求項8から13のいずれか一項に記載の作業機械のための表示方法。
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CN202280065255.9A CN118019891A (zh) | 2021-09-30 | 2022-09-26 | 用于作业机械的显示系统以及用于作业机械的显示方法 |
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WO2019189399A1 (ja) * | 2018-03-30 | 2019-10-03 | 住友建機株式会社 | ショベル |
WO2020204007A1 (ja) * | 2019-03-30 | 2020-10-08 | 住友建機株式会社 | ショベル及び施工システム |
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JPH11101172A (ja) * | 1997-09-26 | 1999-04-13 | Yamaha Motor Co Ltd | 船舶のエンジンの排気装置 |
JP2014206053A (ja) * | 2013-04-10 | 2014-10-30 | 日立建機株式会社 | 建設機械のエンジン制御装置 |
JP2015021258A (ja) * | 2013-07-17 | 2015-02-02 | 住友建機株式会社 | ショベル |
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WO2019189399A1 (ja) * | 2018-03-30 | 2019-10-03 | 住友建機株式会社 | ショベル |
WO2020204007A1 (ja) * | 2019-03-30 | 2020-10-08 | 住友建機株式会社 | ショベル及び施工システム |
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