System for work machine, sales promotion system for work machine, and sales promotion method for work machine

Abstract

To provide a system for a work machine that allows operability of a work machine to be adjusted to suit operator's preferences.SOLUTION: A system SYS for a work machine is configured to be able to adjust parameters related to operability of the work machine 100 based on data related to the work machine 100 before parameters related to operability of the work machine 100 are adjusted, and data related to an evaluation of operability of the work machine 100 by a remote operator OP who operates the work machine 100.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a system for a work machine, a sales promotion system for a work machine, and a sales promotion method for a work machine. [Background technology]

[0002] Conventionally, there is known an excavator equipped with a control device that can adjust the pilot pressure acting on the pilot port of a control valve regardless of the amount of lever operation of an operating lever (see Patent Document 1). With this configuration, the control device can automatically operate an actuator that moves an attachment of the excavator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2024-001737 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-described shovel is not configured to allow the operator to adjust the operational feel to their liking, and therefore there is a risk that the operator will not be able to operate the shovel with the operational feel that they prefer.

[0005] It would therefore be desirable to provide a system for a work machine, such as a shovel or crane, that allows the operability of the work machine to be adjusted to suit the operator's preferences. [Means for solving the problem]

[0006] A system for a work machine according to an embodiment of the present disclosure adjusts an operability parameter, which is a parameter related to the operability of the work machine, based on pre-adjustment data, which is data related to the work machine before adjusting the operability parameter, and evaluation data, which is data related to an evaluation of the operability of the work machine by an operator who operated the work machine. [Effects of the Invention]

[0007] The above-described system allows the operator to tailor the operability of the work machine to their preferences. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram illustrating an example of a system for a work machine according to an embodiment of the present disclosure. FIG. [Figure 2] 1 is a side view of a work machine according to an embodiment of the present disclosure; FIG. [Figure 3] 1 is a diagram illustrating an example of the configuration of a drive control system of a work machine according to an embodiment of the present disclosure. [Figure 4] FIG. 2 is a diagram illustrating a configuration example of a main controller according to an embodiment of the present disclosure. [Figure 5] 1 is a diagram illustrating an example of the configuration of a hydraulic system mounted on a work machine according to an embodiment of the present disclosure. FIG. [Figure 6] 10 is a flowchart illustrating an example of the flow of an adjustment process. [Figure 7] 10 is a flowchart showing another example of the flow of the adjustment process. [Figure 8] 10 is a flowchart showing yet another example of the flow of the adjustment process. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments described below are merely examples and do not limit the invention, and all features and combinations described in the embodiments are not necessarily essential to the invention. In addition, identical or corresponding components in each drawing are designated by identical or corresponding reference numerals, and descriptions thereof may be omitted.

[0010] First, an overview of a system SYS for a work machine according to an embodiment of the present disclosure will be described with reference to Fig. 1. Fig. 1 is a schematic diagram showing an example of a system SYS for a work machine.

[0011] <Devices that make up the work machine system> 1, the system SYS for a work machine includes a work machine 100 and a remote control room RC. The work machine 100 and the remote control room RC are connected via a communication line NW so that data can be sent and received.

[0012] This enables wireless communication of the work machine 100. The work machine 100 is then able to send and receive data to and from equipment (for example, a remote control room RC) connected to the communication line NW.

[0013] The work machine 100 can then transmit information regarding the work site to the remote control room RC. This allows the remote control room RC to check the work site in accordance with the information from the work machine 100. Note that the device that measures the work site is not limited to the work machine 100, and may be other types of device such as a drone that flies over the work site, a fixed camera, or an imaging device that can be carried by the user.

[0014] For example, an imaging device S6 (see FIG. 2) is provided on the work machine 100. The work machine 100 transmits imaging information indicating the results of imaging the work site by the imaging device S6 to the remote control room RC.

[0015] The work machine system SYS may include one or more work machines 100. This allows the work machine system SYS to provide information about the work site to the remote control room RC through the multiple work machines 100.

[0016] <Example of remote control room configuration> The remote control room RC is equipped with a communication device T2, a remote controller 40, an operation device 42, an operation sensor 43, a display device D1, and a speaker A2. The remote control room RC also has an operation seat DS where a remote operator OP who remotely operates the work machine 100 sits.

[0017] The communication device T2 is configured to control communication with the communication device T1 (see FIG. 2) attached to the work machine 100.

[0018] The remote controller 40 is a control device that executes various calculations. In the illustrated example, the remote controller 40 is configured with a microcomputer including a CPU, memory, and nonvolatile storage device. The various functions of the remote controller 40 are realized by the CPU executing programs stored in the memory.

[0019] The display device D1 displays a screen based on information transmitted from the work machine 100 so that the remote operator OP in the remote control room RC can visually confirm the surroundings of the work machine 100. The display device D1 enables the remote operator OP to check the status of the work site including the surroundings of the work machine 100, even though he is in the remote control room RC. In the illustrated example, the display device D1 is a liquid crystal display, but it may also be XR goggles or the like.

[0020] The operation device 42 is a device used by the remote operator OP to operate the actuators. The actuators include at least one of a hydraulic actuator and an electric actuator. In the illustrated example, the operation device 42 includes an operation lever, a travel lever, and a travel pedal. The operation lever includes a left operation lever for swing operation and arm operation, and a right operation lever for boom operation and bucket operation. Note that, hereinafter, the left operation lever will be referred to as a swing operation lever when used for swing operation, and as an arm operation lever when used for arm operation. Furthermore, the right operation lever will be referred to as a boom operation lever when used for boom operation, and as a bucket operation lever when used for bucket operation.

[0021] An operation sensor 43 is installed in the operation device 42 (an example of an operation unit) to detect the operation content of the operation device 42. The operation sensor 43 is, for example, an inclination sensor that detects the inclination angle of the operation lever, or an angle sensor that detects the swing angle of the operation lever about the swing axis. The operation sensor 43 may be configured with other sensors such as a pressure sensor, a current sensor, a voltage sensor, or a distance sensor. The operation sensor 43 outputs information related to the detected operation content of the operation device 42 to the remote controller 40. The remote controller 40 generates an operation signal based on the received information and transmits the generated operation signal to the work machine 100. The operation sensor 43 may be configured to generate an operation signal. In this case, the operation sensor 43 may output the operation signal to the communication device T2 without going through the remote controller 40. This makes it possible to remotely operate the work machine 100 from the remote control room RC.

[0022] The speaker A2 outputs sound information transmitted from the work machine 100 so that the remote operator OP in the remote control room RC can recognize sounds occurring around the work machine 100.

[0023] <Example of work machine configuration> Next, an overview of the work machine 100 will be described with reference to Figure 2. Figure 2 is a side view of a shovel (excavator), which is an example of the work machine 100. The work machine 100 may be a crane. An upper rotating body 3 is rotatably mounted on a lower traveling body 1 of the work machine 100 via a rotating mechanism 2. A boom 4 is attached to the upper rotating body 3. An arm 5 is attached to the tip of the boom 4, and a bucket 6 is attached to the tip of the arm 5 as an end attachment. The end attachment may be a slope bucket, a dredging bucket, or the like.

[0024] In the example shown in FIG. 2, the direction of travel (front-to-rear direction) of the work machine 100 is indicated by the X axis, the width direction of the work machine 100 is indicated by the Y axis, and the height direction of the work machine 100 is indicated by the Z axis.

[0025] The boom 4, arm 5, and bucket 6 constitute an excavation attachment, which is an example of an attachment, and are hydraulically driven by a boom cylinder 7, an arm cylinder 8, and a bucket cylinder 9, respectively. A boom angle sensor S1 is attached to the boom 4, an arm angle sensor S2 is attached to the arm 5, and a bucket angle sensor S3 is attached to the bucket 6.

[0026] The boom angle sensor S1 detects the rotation angle of the boom 4. In this embodiment, the boom angle sensor S1 is an acceleration sensor, and can detect the boom angle, which is the rotation angle of the boom 4 relative to the upper rotating body 3. For example, the boom angle is at its minimum when the boom 4 is lowered to the lowest position, and increases as the boom 4 is raised.

[0027] The arm angle sensor S2 detects the rotation angle of the arm 5. In this embodiment, the arm angle sensor S2 is an acceleration sensor, and can detect the arm angle, which is the rotation angle of the arm 5 relative to the boom 4. For example, the arm angle is at its smallest when the arm 5 is fully closed, and increases as the arm 5 opens.

[0028] The bucket angle sensor S3 detects the rotation angle of the bucket 6. In this embodiment, the bucket angle sensor S3 is an acceleration sensor, and can detect the bucket angle, which is the rotation angle of the bucket 6 with respect to the arm 5. For example, the bucket angle is at its smallest when the bucket 6 is fully closed, and increases as the bucket 6 opens.

[0029] The boom angle sensor S1, arm angle sensor S2, and bucket angle sensor S3 may be a potentiometer using a variable resistor, a stroke sensor that detects the stroke amount of the corresponding hydraulic cylinder, or a rotary encoder that detects the rotation angle around the connecting pin. The boom angle sensor S1, arm angle sensor S2, and bucket angle sensor S3 form a posture sensor that detects the posture of the excavation attachment.

[0030] The upper rotating body 3 is equipped with a cabin 10 as a driver's cab, an engine 11, a body tilt sensor S4, a turning angular velocity sensor S5, an imaging device S6, a positioning device S7, a microphone array A1, a communication device T1, and the like.

[0031] An excavator controller 30 is installed inside the cabin 10. Also installed inside the cabin 10 are a driver's seat, operating devices, and the like.

[0032] The shovel controller 30 is a control device that executes various calculations. The shovel controller 30 is provided, for example, inside the cabin 10 and controls the drive of the work machine 100. The functions of the shovel controller 30 may be realized by any hardware, software, or a combination thereof. For example, the shovel controller 30 is configured mainly with a microcomputer that includes a CPU, memory such as RAM, a non-volatile storage device such as ROM, and various interface devices for input and output. The shovel controller 30 realizes various functions, for example, by executing, on the CPU, various programs installed in the non-volatile storage device.

[0033] The engine 11 is a drive source for the work machine 100. In this embodiment, the engine 11 is a diesel engine, and is mounted at the rear of the upper rotating body 3. The output shaft of the engine 11 is connected to the input shafts of the main pump 14 and the pilot pump 15. Specifically, the engine 11 rotates at a constant speed at a preset target rotation speed under direct or indirect control by the shovel controller 30, and drives the main pump 14 and the pilot pump 15. Note that the drive source for the work machine 100 may also be a battery-powered electric motor.

[0034] The machine body inclination sensor S4 is configured to detect the inclination of the upper rotating body 3 with respect to a predetermined plane. In this embodiment, the machine body inclination sensor S4 is an acceleration sensor that detects the inclination angle about the longitudinal axis and the lateral axis of the upper rotating body 3 with respect to a horizontal plane. The longitudinal axis and the lateral axis of the upper rotating body 3 are, for example, perpendicular to each other and pass through the excavator center point, which is a point on the rotation axis of the work machine 100.

[0035] The rotation angular velocity sensor S5 is configured to detect the rotation angular velocity of the upper rotating body 3. In this embodiment, the rotation angular velocity sensor S5 is a gyro sensor. The rotation angular velocity sensor S5 may be a resolver, a rotary encoder, or the like. The rotation angular velocity sensor S5 may detect a rotation speed. The rotation speed may be calculated from the rotation angular velocity.

[0036] The imaging device S6 is configured to acquire images of the periphery of the work machine 100. In this embodiment, the imaging device S6 includes a front camera S6F that images the space in front of the work machine 100, a left camera S6L that images the space to the left of the work machine 100, a right camera S6R that images the space to the right of the work machine 100, and a rear camera S6B that images the space behind the work machine 100.

[0037] The image capturing device S6 may be, for example, a monocular camera having an image capturing element such as a CCD or CMOS, and may output the captured image to the display device D2.

[0038] The front camera S6F is attached, for example, to the roof of the cabin 10. The left camera S6L is attached to the left end of the upper surface of the upper rotating body 3. The right camera S6R is attached to the right end of the upper surface of the upper rotating body 3. The rear camera S6B is attached to the rear end of the upper surface of the upper rotating body 3.

[0039] In this embodiment, by arranging the imaging device S6 in the above-described manner, it is possible to capture images of objects present around the work machine 100. Note that the imaging device S6 may be a camera that can recognize the distance to the object being photographed (for example, an RGBD camera or a stereo camera).

[0040] The positioning device S7 is configured to acquire information related to the position of the work machine 100. In this embodiment, the positioning device S7 is configured to measure the position and orientation of the work machine 100 in a reference coordinate system. Specifically, the positioning device S7 is a GNSS receiver with an integrated electronic compass, and measures the latitude, longitude, and altitude of the current position of the work machine 100, and measures the orientation of the work machine 100. The reference coordinate system according to this embodiment is, for example, the World Geodetic System. The World Geodetic System is a three-dimensional orthogonal XYZ coordinate system with its origin at the center of gravity of the Earth, its X axis pointing in the direction of the intersection of the Greenwich meridian and the equator, its Y axis pointing in the direction of 90 degrees east longitude, and its Z axis pointing in the direction of the North Pole.

[0041] The communication device T1 is configured to control communications with devices external to the work machine 100. In this embodiment, the communication device T1 is configured to control communications between the communication device T1 and devices external to the work machine 100 via a wireless communication network. The communication device T1 includes, for example, a mobile communication module compatible with mobile communication standards such as LTE (Long Term Evolution), 4G (4th Generation), and 5G (5th Generation), a satellite communication module for connecting to a satellite communication network, and the like.

[0042] Furthermore, the communication device T1 controls wireless communication between the work machine 100 and an external GNSS (Global Navigation Satellite System) surveying system, for example.

[0043] The microphone array A1 has a plurality of microphones and is configured to collect sounds generated around the work machine 100. In this embodiment, the microphone array A1 is a plurality of microphones attached to the upper rotating body 3.

[0044] [Excavator drive control system] Figure 3 is a diagram showing an example of the configuration of a drive control system of the work machine 100 of Figure 2. In Figure 3, the mechanical power transmission system is indicated by double lines, the hydraulic oil lines are indicated by thick solid lines, the pilot lines are indicated by dashed lines, and the electric drive and control system is indicated by dotted lines.

[0045] The drive system of the work machine 100 according to this embodiment includes the engine 11, regulator 13, main pump 14, and control valve unit 17. Furthermore, the hydraulic drive system of the work machine 100 according to this embodiment includes hydraulic actuators such as the travel hydraulic motors (left travel hydraulic motor 1L and right travel hydraulic motor 1R) that hydraulically drive the lower traveling body 1, upper rotating body 3, boom 4, arm 5, and bucket 6, respectively, the swing hydraulic motor 2A, the boom cylinder 7, the arm cylinder 8, and the bucket cylinder 9, as described above.

[0046] The regulator 13 controls the discharge amount of the main pump 14. For example, the regulator 13 adjusts the angle (tilting angle) of the swash plate of the main pump 14 in response to a control command from the shovel controller 30.

[0047] The main pump 14 is mounted, for example, on the rear of the upper rotating body 3, similar to the engine 11, and supplies hydraulic oil to the control valve unit 17 through a high-pressure hydraulic line. As described above, the main pump 14 is driven by the engine 11. The main pump 14 is, for example, a variable displacement hydraulic pump, and as described above, under the control of the excavator controller 30, the tilt angle of the swash plate is adjusted by the regulator 13, thereby adjusting the stroke length of the piston and controlling the discharge flow rate (discharge pressure).

[0048] The control valve unit 17 is a hydraulic control device that controls the hydraulic system of the work machine 100. In this embodiment, the control valve unit 17 includes control valves 171-176 that serve as spool valves. The control valve unit 17 is configured to selectively supply hydraulic oil discharged by the main pump 14 to one or more hydraulic actuators via the control valves 171-176. The control valves 171-176 control, for example, the flow rate of hydraulic oil flowing from the main pump 14 to the hydraulic actuators and the flow rate of hydraulic oil flowing from the hydraulic actuators to a hydraulic oil tank. The hydraulic actuators include a boom cylinder 7, an arm cylinder 8, a bucket cylinder 9, a left traveling hydraulic motor 1L, a right traveling hydraulic motor 1R, and a swing hydraulic motor 2A. More specifically, the control valve 171 corresponds to the left traveling hydraulic motor 1L, the control valve 172 corresponds to the right traveling hydraulic motor 1R, and the control valve 173 corresponds to the swing hydraulic motor 2A. Furthermore, the control valve 174 corresponds to the bucket cylinder 9 , the control valve 175 corresponds to the boom cylinder 7 , and the control valve 176 corresponds to the arm cylinder 8 .

[0049] The pilot pump 15 is an example of a pilot pressure generating device, and is configured to supply hydraulic oil to hydraulic control devices via a pilot line. In this embodiment, the pilot pump 15 is a fixed displacement hydraulic pump. However, the pilot pressure generating device may be realized by the main pump 14. That is, the main pump 14 may have a function of supplying hydraulic oil to various hydraulic control devices via a pilot line, in addition to a function of supplying hydraulic oil to the control valve unit 17 via a hydraulic oil line. In this case, the pilot pump 15 may be omitted.

[0050] The control device 26 is a device used by an operator in the cabin 10 to operate the actuators. The actuators include at least one of a hydraulic actuator and an electric actuator. In the illustrated example, the control device 26 includes a control lever, a travel lever, and a travel pedal, similar to the control device 42. The control lever includes a left control lever for swing operation and arm operation, and a right control lever for boom operation and bucket operation.

[0051] The discharge pressure sensor 28 is configured to detect the discharge pressure of the main pump 14. In this embodiment, the discharge pressure sensor 28 outputs the detected value to the shovel controller 30.

[0052] The operation sensor 29 is configured to detect the operation content of the operator using the operation device 26. In this embodiment, the operation sensor 29 detects the operation direction and operation amount of the operation device 26 corresponding to each actuator, and outputs the detected values ​​to the shovel controller 30. In this embodiment, the shovel controller 30 controls the opening area of ​​the proportional valve 31 in accordance with the output of the operation sensor 29. The shovel controller 30 then supplies the hydraulic oil discharged from the pilot pump 15 to the pilot ports of the corresponding control valves in the control valve unit 17. The pressure of the hydraulic oil supplied to each pilot port (pilot pressure) is, in principle, a pressure corresponding to the operation direction and operation amount of the operation device 26 corresponding to each hydraulic actuator. In this way, the operation device 26 is configured to supply the hydraulic oil discharged from the pilot pump 15 to the pilot ports of the corresponding control valves in the control valve unit 17.

[0053] The proportional valve 31, which functions as a control valve for machine control, is disposed in a pipe connecting the pilot pump 15 and the pilot port of the control valve in the control valve unit 17, and is configured so as to be able to change the flow path area of ​​that pipe. In this embodiment, the proportional valve 31 operates in response to a control command output by the shovel controller 30. Therefore, the shovel controller 30 can supply the hydraulic oil discharged by the pilot pump 15 to the pilot port of the control valve in the control valve unit 17 via the proportional valve 31, regardless of the operation of the operating device 26 by the operator.

[0054] With this configuration, the shovel controller 30 can operate the hydraulic actuator corresponding to a specific operating device 26 even when no operation is being performed on that specific operating device 26.

[0055] For example, the shovel controller 30 sets a target rotation speed based on a work mode or the like that is set in advance by a predetermined operation by an operator or the like, and performs drive control to rotate the engine 11 at a constant speed.

[0056] Furthermore, for example, the shovel controller 30 outputs a control command to the regulator 13 as necessary to change the discharge rate of the main pump 14.

[0057] Furthermore, for example, the shovel controller 30 performs control relating to a machine guidance function that guides (provides guidance for) the manual operation of the work machine 100 by the operator via the operation device 26. Furthermore, the shovel controller 30 performs control relating to a machine control function that automatically assists the manual operation of the work machine 100 by the operator via the operation device 26.

[0058] Note that some of the functions of the shovel controller 30 may be realized by another controller (control device). That is, the functions of the shovel controller 30 may be realized in a distributed manner by a plurality of controllers. For example, the machine guidance function and the machine control function may be realized by a dedicated controller (control device).

[0059] Next, an example of the configuration of the main controller 50 that constitutes the system SYS of the work machine 100 will be described with reference to Fig. 4. Fig. 4 is a block diagram showing an example of the configuration of the main controller 50.

[0060] The main controller 50 is configured to be able to adjust "operability parameters," which are parameters related to the operability of the work machine 100. In the illustrated example, the main controller 50 is configured as a microcomputer including a CPU, memory, etc., and has functional units such as a data acquisition unit 51, an evaluation data acquisition unit 52, and an adjustment unit 53, and the CPU executes programs stored in the memory to realize the functions of the functional units. The main controller 50 is a control device installed in the remote control room RC, and is provided separately from the remote controller 40. However, the main controller 50 may be part of the remote controller 40, or may include the remote controller 40. The main controller 50 may also be mounted on the work machine 100. In this case, the main controller 50 may be part of the shovel controller 30, or may include the shovel controller 30. The main controller 50 may also be a control device installed in a management center or the like located away from both the work machine 100 and the remote control room RC.

[0061] The operability parameters include, for example, control gains in controlling the pilot pressure, which include proportional gain, differential gain, and integral gain when PID control is used to control the pilot pressure.

[0062] The operability parameters may include an "operation gain" that determines the operational output of the work machine 100 in response to an operation input by the operator. The operation gain is a value that determines, for example, the extension / retraction speed of the arm cylinder 8 depending on how much the arm operation lever is tilted. Typically, if the tilt angle of the arm operation lever is the same, the larger the operation gain, the faster the extension / retraction speed of the arm cylinder 8.

[0063] The data acquisition unit 51 is configured to acquire data related to the work machine 100. The data related to the work machine 100 includes "pre-adjustment data," which is data related to the work machine 100 before adjustment of the operability parameters. The pre-adjustment data is data that is stored in advance in a non-volatile storage device, such as initial values ​​of the operability parameters. The pre-adjustment data may be data obtained when the work machine 100 is actually operated. Specifically, the pre-adjustment data may include time-series data of inputs such as the amount and direction of operation of the control lever, and time-series data of outputs such as the discharge pressure of the main pump 14, pilot pressure, boom angle, arm angle, bucket angle, tilt angle about the front-to-rear axis and tilt angle about the left-to-right axis of the upper rotating body 3 relative to the horizontal plane, swing angular velocity, and pressure of hydraulic oil in the hydraulic actuators. The pressure of the hydraulic oil in the hydraulic actuator includes, for example, boom bottom pressure, boom rod pressure, arm bottom pressure, arm rod pressure, bucket bottom pressure, bucket rod pressure, pressure of the hydraulic oil at the inlet port of the traveling hydraulic motor, pressure of the hydraulic oil at the outlet port of the traveling hydraulic motor, pressure of the hydraulic oil at the inlet port of the swing hydraulic motor 2A, and pressure of the hydraulic oil at the outlet port of the swing hydraulic motor 2A.

[0064] The opening area of ​​each port (PT port, PC port, and CT port) of each of the control valves 171-176 serving as spool valves is uniquely derived from the spool displacement of each of the control valves 171-176. The "PT port" is a port connecting the main pump 14 to a hydraulic oil tank, the "PC port" is a port connecting the main pump 14 to a hydraulic actuator such as the boom cylinder 7, and the "CT port" is a port connecting a hydraulic actuator to a hydraulic oil tank. The spool displacement of each of the control valves 171-176 is uniquely derived from the pilot pressure acting on the pilot port of each of the control valves 171-176. For this reason, in the illustrated example, the pre-adjustment data includes time-series data on the pilot pressure but does not include a measured value of the spool displacement. However, the pre-adjustment data may include a measured value of the spool displacement. In this case, a sensor for detecting the spool displacement of each of the control valves 171-176 may be attached to the work machine 100 used to acquire the pre-adjustment data. This is to enable the acquisition of pre-adjustment data that is as accurate as possible. The same applies to other special sensors that are not attached to a normally used work machine 100. Other special sensors are, for example, flow rate sensors that measure the flow rate of hydraulic oil passing through each of the control valves 171-176.

[0065] The data obtained when the work machine 100 is actually operated may be data obtained by using a simulator for the work machine 100. The simulator for the work machine 100 is a device for operating a virtual work machine that does not actually exist in cyberspace.

[0066] The evaluation data acquisition unit 52 is configured to be able to acquire "evaluation data," which is data relating to an evaluation of the operability of the work machine 100 by an operator who actually operated the work machine 100. In the illustrated example, the evaluation data is a numerical representation of the evaluation of the operability of the work machine 100 by the remote operator OP. Specifically, the evaluation data includes, for example, a three-level evaluation (a value of "1" representing "slow," a value of "2" representing "moderate," and a value of "3" representing "fast") of the rising speed of the boom 4 when the right operating lever is operated in the boom-raising direction. The same applies to the lowering speed of the boom 4, the opening speed of the arm 5, the closing speed of the arm 5, the opening speed of the bucket 6, the closing speed of the bucket 6, the forward speed, the reverse speed, the left swing speed, and the right swing speed.

[0067] The evaluation data can be input to the system SYS for the work machine by any method, such as input via a touch panel, input via hardware buttons, or voice input.

[0068] The evaluation data may also be distinguished between when an individual operation is performed and when a combined operation is performed. "When an individual operation is performed" is, for example, when only the boom 4 is moved, and "when a combined operation is performed" is, for example, when the boom 4 and the arm 5 are moved simultaneously. Similarly, the evaluation data may also be distinguished between when a load is applied and when no load is applied. "When a load is applied" is, for example, when the attachment is moved with the bucket in contact with soil and sand, and "when no load is applied" is, for example, when the attachment is moved in the air.

[0069] Therefore, the remote operator OP can input as evaluation data, for example, an evaluation that the arm closing speed during excavation is "appropriate," but the arm closing speed when moving the attachment in the air is "slow."

[0070] Alternatively, the evaluation data may be a numerical representation of evaluations of fuel consumption, cycle time, payload, etc. derived from the pre-adjustment data. The cycle time means, for example, the time required for one cycle, where one cycle is a series of operations including an excavation operation, a lifting and swinging operation, an earth dumping operation, and a lifting and swinging operation. The payload is, for example, the weight of earth and sand taken into the bucket 6. In this case, the evaluation data acquisition unit 52 may calculate the fuel consumption, cycle time, payload, etc. from the pre-adjustment data and display them on the display device D1. This is so that the remote operator OP can evaluate the excavation performance of the work machine 100 (such as the amount of fuel consumption, the length of the cycle time, and the weight of the payload) by looking at the fuel consumption, cycle time, payload, etc. displayed on the display device D1.

[0071] Alternatively, the evaluation data acquisition unit 52 may be configured to display on the display device D1 a graph showing the transition of the toe position of the bucket 6 based on the pre-adjustment data. The graph is, for example, a two-dimensional graph with the horizontal axis representing the distance in the X-axis direction between a reference (e.g., the pivot axis) and the toe position, and the vertical axis representing the distance in the Z-axis direction between a reference surface (e.g., the ground) and the toe position. This is so that the remote operator OP can evaluate the bed digging operability by looking at the graph displayed on the display device D1. For example, if the remote operator OP determines that there is little variation in the height of the toe position of the bucket 6 (the distance in the Z-axis direction between the reference surface (e.g., the ground) and the toe position), he or she can input an evaluation result that the bed digging operability is good.

[0072] The adjustment unit 53 is configured to be able to adjust the operability parameters based on the pre-adjustment data and the evaluation data. In the illustrated example, the adjustment unit 53 is configured to calculate recommended values ​​of the operability parameters for achieving the operability desired by the remote operator OP based on the pre-adjustment data and the evaluation data, and to automatically update the current values ​​of the operability parameters with the recommended values. Note that the adjustment unit 53 may also be configured to simply display the recommended values ​​of the operability parameters on the display device D1, without automatically updating the current values ​​of the operability parameters with the recommended values. In this case, the operability parameters may be updated manually by an administrator of the work machine 100 or the like via a dedicated device. In other words, the updating of the operability parameters by the remote operator OP may be restricted. This is to prevent inappropriate updates by someone who is unfamiliar with updating operability parameters.

[0073] In the illustrated example, the adjustment unit 53 automatically changes the value of the operability parameter so as to eliminate the negative evaluation. Specifically, if the evaluation indicates that the raising speed of the boom 4 is slow, the adjustment unit 53 changes the value of the operability parameter so as to increase the raising speed of the boom 4. Note that the adjustment unit 53 may adjust the operability parameter so that the raising speed of the boom 4 does not increase during independent operation but increases the raising speed of the boom 4 during combined operation of the boom 4 and arm 5. Alternatively, the adjustment unit 53 may adjust the operability parameter using pre-adjustment data, evaluation data, and a machine learning algorithm.

[0074] Next, an example of adjusting the operability of the work machine 100 will be described with reference to Fig. 5. Fig. 5 is a diagram showing an example of the configuration of a hydraulic system mounted on the work machine 100. In Fig. 5, devices that are the subject of adjustment are indicated by a dot pattern.

[0075] In the example shown in FIG. 5 , the first hydraulic actuator AC1 is basically driven by hydraulic oil discharged from the first hydraulic pump HP1, and the second hydraulic actuator AC2 is basically driven by hydraulic oil discharged from the second hydraulic pump HP2. The first hydraulic pump HP1 and the second hydraulic pump HP2 are each independent hydraulic pumps, and each corresponds to the main pump 14. The first control lever LV1 and the second control lever LV2 correspond to a left control lever and a right control lever provided in the cabin 10 of the work machine 100. However, the first control lever LV1 and the second control lever LV2 may also be a left control lever and a right control lever provided in the remote control room RC. Specifically, the first control lever LV1 is used to change the spool displacement amount of the first control valve CV1, and the second control lever LV2 is used to change the spool displacement amount of the second control valve CV2. The proportional valve PV is a valve for selectively combining the hydraulic oil discharged from the first hydraulic pump HP1 and the hydraulic oil discharged from the second hydraulic pump HP2. Each of the first control valve CV1 and the second control valve CV2 corresponds to one of the control valves 171 to 176 included in the control valve unit 17.

[0076] The adjustment unit 53 of the main controller 50 can adjust operability parameters for each of the first hydraulic pump HP1, the second hydraulic pump HP2, the proportional valve PV, the first control valve CV1, the second control valve CV2, the first operating lever LV1, and the second operating lever LV2.

[0077] Specifically, the operability parameters related to the first hydraulic pump HP1 are, for example, parameters related to negative control. In the illustrated example, the first hydraulic pump HP1 is controlled so that the discharge rate increases as the pressure of the hydraulic oil between the first control valve CV1 and the hydraulic oil tank TK decreases. The parameters related to negative control are parameters for changing the relationship between the pressure and discharge rate of this hydraulic oil. In this way, the adjustment unit 53 can change the operability of the first hydraulic actuator AC1 by adjusting the operability parameters related to the first hydraulic pump HP1. The same applies to the operability parameters related to the second hydraulic pump HP2.

[0078] The proportional valve PV is, for example, a straight travel valve, a first parallel selector valve, a second parallel selector valve, or a regeneration release selector valve. The straight travel valve, the first parallel selector valve, the second parallel selector valve, and the regeneration release selector valve are valves used in a configuration having a specific hydraulic actuator (e.g., arm cylinder 8) that is both the first hydraulic actuator AC1 and the second hydraulic actuator AC2. In this configuration, the hydraulic oil discharged by the first hydraulic pump HP1 and the hydraulic oil discharged by the second hydraulic pump HP2 are joined at the straight travel valve or in the specific hydraulic actuator (e.g., arm cylinder 8). The specific hydraulic actuator may be the boom cylinder 7.

[0079] The straight travel valve is basically a valve that has a first valve position that is selected when the travel lever is operated alone, and a second valve position that is selected when the travel lever and the operating lever are operated simultaneously. When the first valve position is selected, the hydraulic oil discharged by the first hydraulic pump HP1 is supplied to the left travel hydraulic motor 1L, which is one of the first hydraulic actuators AC1, and the hydraulic oil discharged by the second hydraulic pump HP2 is supplied to the right travel hydraulic motor 1R, which is one of the second hydraulic actuators AC2. On the other hand, when the second valve position is selected, the hydraulic oil discharged by the first hydraulic pump HP1 is supplied to both the left travel hydraulic motor 1L and the right travel hydraulic motor 1R. This is to improve straight-line travel when the travel lever and the operating lever are operated simultaneously.

[0080] The first parallel switching valve is basically a valve for adjusting the amount of hydraulic oil supplied to the downstream control valve (e.g., the first arm control valve) of the first control valves CV1 when two control valves (e.g., the swing control valve and the first arm control valve) are simultaneously operated. The second parallel switching valve is basically a valve for adjusting the amount of hydraulic oil supplied to the downstream control valve (e.g., the second arm control valve) of the second control valves CV2 when two control valves (e.g., the bucket control valve and the second arm control valve) are simultaneously operated.

[0081] The regeneration release switching valve is basically a valve for adjusting the amount of hydraulic oil that flows out from a specific hydraulic actuator (for example, the rod side oil chamber of the arm cylinder 8) and returns to the same specific hydraulic actuator (for example, the bottom side oil chamber of the arm cylinder 8).

[0082] The operability parameter for the proportional valve PV is a parameter for changing the relationship between the operation amount of the first control lever LV1, the operation amount of the second control lever LV2, and the opening area of ​​the proportional valve PV. In the illustrated example, the proportional valve PV is a straight-travel valve, and is configured to change the opening area of ​​a flow path for joining the hydraulic oil discharged by the first hydraulic pump HP1 and the hydraulic oil discharged by the second hydraulic pump HP2 based on the operation amount of the first control lever LV1 and the operation amount of the second control lever LV2. The larger this opening area, the greater the amount of hydraulic oil discharged by the first hydraulic pump HP1 and the hydraulic oil discharged by the second hydraulic pump HP2 joining together. Note that the opening area of ​​the proportional valve PV may be configured to change in response to at least one of the discharge pressure of the first hydraulic pump HP1, the discharge pressure of the second hydraulic pump HP2, the pressure of the hydraulic oil in the first hydraulic actuator AC1, and the pressure of the hydraulic oil in the second hydraulic actuator AC2. In this way, the adjusting unit 53 can change the operability of each of the first hydraulic actuator AC1 and the second hydraulic actuator AC2 when the first hydraulic actuator AC1 and the second hydraulic actuator AC2 are simultaneously operated by adjusting the operability parameter related to the proportional valve PV. Note that the first hydraulic actuator AC1 and the second hydraulic actuator AC2 may be one specific hydraulic actuator (for example, the arm cylinder 8) as described above.

[0083] The operability parameter for the first control lever LV1 is a parameter for changing the relationship between the operation amount of the first control lever LV1 and the operation amount of the first hydraulic actuator. The adjustment unit 53 can change the operability of the first hydraulic actuator AC1 by adjusting the operability parameter for the first control lever LV1. The same applies to the operability parameter for the second control lever LV2.

[0084] The operability parameter for the first control valve CV1 is, for example, a parameter for changing the relationship between the operation amount of the first operating lever LV1 and the spool displacement amount of the first control valve CV1. The adjustment unit 53 can change the operability of the first hydraulic actuator AC1 by adjusting the operability parameter for the first control valve CV1. The same applies to the operability parameter for the second operating lever LV2.

[0085] Next, with reference to Figs. 6 to 8, a process (hereinafter referred to as "adjustment process") in which the main controller 50 adjusts operability parameters in the work machine system SYS will be described. Figs. 6 to 8 are each a flowchart showing an example of the flow of the adjustment process executed to realize the preferred operation feel of a customer (potential buyer) who is considering purchasing the work machine 100. Therefore, in the examples shown in Figs. 6 to 8, the work machine system SYS functions as a sales promotion system for work machines. Specifically, Fig. 6 shows an example of the flow of the adjustment process executed when the customer is allowed to actually operate, from the remote control room RC, a test ride model of the work machine 100 prepared at a work site away from the remote control room RC, to find the customer's preferred operation feel. Fig. 7 shows an example of the flow of the adjustment process executed when the customer is allowed to ride in and actually operate a test ride model of the work machine 100 at the site, to find the customer's preferred operation feel. FIG. 8 shows an example of the flow of an adjustment process that is executed when a customer operates a virtual work machine on the simulator of the work machine 100 without using a test ride machine (actual machine) to find the customer's preferred operating feel.

[0086] First, with reference to FIG. 6 , a case will be described in which a customer remotely operates a test ride machine from a remote control room RC. In the illustrated example, the test ride machine is the same work machine as the normal work machine 100 to be sold, but is equipped with various sensors that are not equipped on the normal work machine 100 to be sold to facilitate the collection of pre-adjustment data. The test ride machine is also configured to enable real-time updates of operability parameters. Specifically, the test ride machine is configured to enable updates of operability parameters via wireless communication. The normal work machine 100 to be sold may also be configured to restrict updates of operability parameters via wireless communication. For example, the normal work machine 100 to be sold may also be configured so that updates of operability parameters are permitted only when a dedicated device is wired to the excavator controller 30. This is to prevent undesired operability parameter updates from being performed by mistake.

[0087] First, the main controller 50 acquires pre-adjustment data of the test ride machine of the work machine 100 that is remotely operated from the remote control room RC (step ST1). In the illustrated example, a customer (remote operator OP) remotely operates the test ride machine from the remote control room RC. The main controller 50 installed in the remote control room RC acquires pre-adjustment data that includes the output of the operation sensor 43 and various data output to the remote controller 40 from various sensors attached to the test ride machine of the work machine 100.

[0088] By remotely controlling the test vehicle from the remote control room RC, customers can have the test vehicle perform various movements such as digging operations and aerial movements of the attachment, allowing them to check out the feel of operating the test vehicle.

[0089] Thereafter, the main controller 50 acquires the evaluation data (step ST2). In the illustrated example, when the customer has completed the test ride, the main controller 50 displays an evaluation input screen on the display device D1, which functions as a touch panel, so that the customer can input evaluation data related to their evaluation of the test ride machine. The evaluation input screen includes evaluation items such as "boom-raising speed" and "arm-closing speed" and an input form for inputting the evaluation results corresponding to each evaluation item. The input form is, for example, a radio button or a pull-down menu. For example, when the customer has input the evaluation results corresponding to all evaluation items, they can end their evaluation of the test ride machine by pressing a predetermined software button (evaluation end button) displayed on the display device D1.

[0090] Thereafter, the main controller 50 adjusts the operability parameters of the test ride machine (step ST3). In the illustrated example, when the evaluation end button is pressed, the main controller 50 derives recommended values ​​for the operability parameters of the test ride machine based on the pre-adjustment data acquired in step ST1 and the evaluation data acquired in step ST2, and updates the values ​​of the operability parameters with the derived recommended values. Specifically, the main controller 50 transmits the recommended values ​​of the operability parameters to the test ride machine of the work machine 100 at the work site via communication device T2. The test ride machine, which has received the recommended values ​​of the operability parameters, updates the operability parameters using the received recommended values. Note that the adjustment of the operability parameters may be performed not by the customer but by a manager such as a sales representative of the work machine 100.

[0091] The main controller 50 then instructs the customer to resume remote operation of the test ride vehicle (step ST4). In the illustrated example, the main controller 50 displays a text message on the display device D1, such as "The operability parameters have been updated, so please resume operation of the test ride vehicle," to prompt the customer to resume remote operation of the test ride vehicle. The main controller 50 may also output a voice message from the speaker A2 to prompt the customer to resume remote operation of the test ride vehicle. At this point, the customer can remotely operate the test ride vehicle with the updated operability parameters.

[0092] Thereafter, the main controller 50 determines whether the desired operability has been achieved (step ST5). In the illustrated example, when the customer has finished the second test drive, the main controller 50 displays a predetermined software button (adjustment completion button) on the display device D1, and determines that the desired operability has been achieved when the adjustment completion button is pressed. Conversely, the main controller 50 displays a predetermined software button (readjustment button) on the display device D1, and determines that the desired operability has not been achieved when the readjustment button is pressed.

[0093] If it is determined that the desired operability has not been achieved (NO in step ST5), the main controller 50 repeats the processes of steps ST1 to ST4. In this case, the pre-adjustment data acquired again in step ST1 may be data acquired when the test ride vehicle is remotely operated after the instruction in step ST4 is issued.

[0094] On the other hand, if it is determined that the desired operability has been achieved (YES in step ST5), the main controller 50 stores the adjusted operability parameters (step ST6). In the illustrated example, the main controller 50 stores the adjusted operability parameter values ​​in a non-volatile storage device so that when a customer purchases the work machine 100, the adjusted operability parameter values ​​can be quickly applied to the customer's machine.

[0095] Next, with reference to FIG. 7, an adjustment process that is executed when a customer gets on and operates (boarding operation) a test ride machine at a work site will be described.

[0096] First, the main controller 50 acquires pre-adjustment data of the test ride machine of the work machine 100 to be operated while riding on it (step ST11). In the illustrated example, the customer (operator) gets into the cabin 10 to ride on and operate the test ride machine. The main controller 50 installed in the cabin 10 acquires the pre-adjustment data including various data output to the shovel controller 30 from various sensors attached to the test ride machine, including the operation sensor 29.

[0097] By riding and operating the test-ride machine, the customer can have the test-ride machine perform various movements such as excavation operations and aerial movements of the attachment, and can check the feel of operating the test-ride machine.

[0098] Thereafter, the main controller 50 acquires the evaluation data (step ST12). In the illustrated example, when the customer has finished the test drive, the main controller 50 displays an evaluation input screen on the display device D2, which functions as a touch panel, so that the customer can input evaluation data related to their evaluation of the test drive vehicle. The content of the evaluation input screen is the same as the content of the evaluation input screen displayed on the display device D1 in the remote control room RC after the test drive vehicle has been remotely operated.

[0099] Thereafter, the main controller 50 adjusts the operability parameters of the test ride machine (step ST13). In the illustrated example, when the evaluation end button is pressed, the main controller 50 derives recommended values ​​for the operability parameters of the test ride machine based on the pre-adjustment data acquired in step ST11 and the evaluation data acquired in step ST12, and updates the values ​​of the operability parameters with the derived recommended values. Note that the adjustment of the operability parameters may be performed not by the customer but by an administrator such as a sales representative of the work machine 100. In this case, the administrator may adjust the operability parameters by connecting a portable adjustment device to the test ride machine at the work site, for example. The portable adjustment device is configured, for example, by a microcomputer including a CPU, memory, nonvolatile storage device, etc., and is connected via a dedicated cable to the shovel controller 30 installed under the driver's seat in the cabin 10. The portable adjustment device is a device compatible with wireless communication standards such as Wi-Fi (registered trademark) or Bluetooth (registered trademark), and may be connected to the shovel controller 30 via wireless communication.

[0100] The operability parameters may also be adjusted via wireless communication by an administrator at a management center or the like located away from the work site. This is to ensure that appropriate adjustments can be made by an administrator who is familiar with adjusting operability parameters, even for test ride vehicles located away from a management center or the like. The test ride vehicle may be configured to be able to supply power to the adjustment device, and the display device D2 installed in the cabin 10 may be used as a device for displaying information output by the adjustment device.

[0101] The main controller 50 then instructs the customer to resume boarding the test vehicle (step ST14). In the illustrated example, the main controller 50 causes the display device D2 to display a text message such as "The operability parameters have been updated, so please resume operating the test vehicle," urging the customer to resume boarding the test vehicle. The main controller 50 may also output a voice message from an in-vehicle speaker (not shown) to urge the customer to resume boarding the test vehicle. At this point, the customer can board and operate the test vehicle with the updated operability parameters.

[0102] Thereafter, the main controller 50 determines whether the desired operability has been achieved (step ST15). In the illustrated example, when the customer has finished the second test drive, the main controller 50 displays a predetermined software button (adjustment completion button) on the display device D2, and determines that the desired operability has been achieved when the adjustment completion button is pressed. Conversely, the main controller 50 displays a predetermined software button (readjustment button) on the display device D2, and determines that the desired operability has not been achieved when the readjustment button is pressed.

[0103] If it is determined that the desired operability has not been achieved (NO in step ST15), the main controller 50 repeats the processes of steps ST11 to ST14. In this case, the pre-adjustment data acquired again in step ST11 may be data acquired when the test vehicle is boarded and operated after the instruction in step ST14 is issued.

[0104] On the other hand, if it is determined that the desired operability has been achieved (YES in step ST15), the main controller 50 stores the adjusted operability parameters (step ST16). In the illustrated example, the main controller 50 transmits the adjusted operability parameter values ​​to a management server or the like installed in a management center or the like located away from the work site so that the adjusted operability parameter values ​​can be quickly applied to the customer's machine when the customer purchases the work machine 100. The management server or the like stores the received adjusted operability parameter values ​​in a non-volatile storage device.

[0105] Next, with reference to FIG. 8 , the adjustment processing executed when a customer operates the virtual test ride machine will be described. The virtual test ride machine is a virtual work machine constructed in cyberspace by a simulator of the work machine 100, and is configured to be able to move in the same way as the work machine 100 in real space (the work site). In the illustrated example, the customer can use the simulator of the work machine 100 connected to the main controller 50 installed in the remote control room RC by using the operation device 42 and operator seat DS, etc., provided in the remote control room RC. In this case, the remote control room RC functions as a simulator room. Note that the simulator room may be provided separately from the remote control room RC. The simulator of the work machine 100 is composed of a microcomputer including a CPU, memory, non-volatile storage device, etc., and is provided separately from the main controller 50. However, the simulator of the work machine 100 may be part of the main controller 50, or may include the main controller 50. With this configuration, the customer can operate the virtual test ride machine as if they were remotely operating a test ride machine at the work site.

[0106] First, the main controller 50 acquires pre-adjustment data of the virtual test ride vehicle to be operated (step ST21). In the illustrated example, the customer (remote operator OP) operates the virtual test ride vehicle in a remote control room RC. The main controller 50 installed in the remote control room RC acquires pre-adjustment data including the output of the operation sensor 43 and various data output from the simulator. The simulator operates the virtual test ride vehicle in response to the output of the operation sensor 43. The various data output from the simulator is data output by virtual sensors virtually attached to the virtual test ride vehicle.

[0107] By operating the virtual test vehicle from the remote control room RC, customers can have the virtual test vehicle perform various movements such as excavation operations and aerial movements of the attachment, allowing them to check the operating feel of the virtual test vehicle and, ultimately, the operating feel of the actual test vehicle.

[0108] Thereafter, the main controller 50 acquires the evaluation data (step ST22). In the illustrated example, when the customer's virtual test drive is completed, the main controller 50 displays an evaluation input screen on the display device D1, which functions as a touch panel, so that the customer can input evaluation data related to their evaluation of the virtual test drive vehicle. The content of the evaluation input screen is the same as the content of the evaluation input screen displayed on the display device D1 in the remote control room RC after remotely operating the actual test drive vehicle.

[0109] Thereafter, the main controller 50 adjusts the operability parameters of the virtual test ride machine (step ST23). In the illustrated example, when the evaluation end button is pressed, the main controller 50 derives recommended values ​​for the operability parameters of the virtual test ride machine based on the pre-adjustment data acquired in step ST21 and the evaluation data acquired in step ST22, and updates the values ​​of the operability parameters with the derived recommended values. Note that the adjustment of the operability parameters may be performed by a manager such as a sales representative of the work machine 100, rather than by the customer.

[0110] Thereafter, the main controller 50 instructs the customer to resume operation of the virtual test ride vehicle (step ST24). In the illustrated example, the main controller 50 causes the display device D1 to display a text message such as "The operability parameters have been updated, so please resume operation of the test ride vehicle," urging the customer to resume operation of the virtual test ride vehicle. The main controller 50 may also cause the speaker A2 to output a voice message urging the customer to resume operation of the virtual test ride vehicle. At this point, the customer can operate the virtual test ride vehicle with the updated operability parameters.

[0111] Thereafter, the main controller 50 determines whether the desired operability has been achieved (step ST25). In the illustrated example, when the customer finishes another virtual test drive, the main controller 50 displays a predetermined software button (adjustment completion button) on the display device D1, and determines that the desired operability has been achieved when the adjustment completion button is pressed. Conversely, the main controller 50 displays a predetermined software button (readjustment button) on the display device D1, and determines that the desired operability has not been achieved when the readjustment button is pressed.

[0112] If it is determined that the desired operability has not been achieved (NO in step ST25), the main controller 50 repeats the processes of steps ST21 to ST24. In this case, the pre-adjustment data acquired again in step ST21 may be data acquired when the virtual test ride machine is operated after the instruction in step ST24 is issued.

[0113] On the other hand, if it is determined that the desired operability has been achieved (YES in step ST25), the main controller 50 stores the adjusted operability parameters (step ST6). In the illustrated example, the main controller 50 stores the adjusted operability parameter values ​​in the non-volatile storage device so that when a customer purchases the work machine 100, the adjusted operability parameter values ​​can be quickly applied to the customer's machine.

[0114] Note that when the work machine 100 is used by multiple operators, the main controller 50 may be configured to be able to adjust the operability parameters for each operator. In other words, the main controller 50 may be configured to be able to store the operability parameters after adjustment for each operator. In this case, the work machine 100 may be configured to identify the operator at start-up and automatically load the operability parameters corresponding to the identified operator. Alternatively, the work machine 100 may be configured to allow the operator to select a desired operability parameter from a plurality of operability parameters at start-up.

[0115] Alternatively, if the work machine 100 is used by multiple operators, the recommended value of the operability parameter may be an average value calculated based on the evaluation results of each of the multiple operators. In other words, the recommended value of the operability parameter may be a value that is the greatest common denominator that suits the preferences of each of the multiple operators.

[0116] With the above-described configuration, the work machine system SYS brings about the effect that the operability of the work machine can be adjusted to suit the preferences of the operator (customer). In other words, the work machine system SYS brings about the effect that the customizability of the work machine 100 can be improved. Specifically, the work machine system SYS brings about the effect that the customizability of the work machine 100 can be improved by making it possible to adjust the operability parameters of the work machine 100.

[0117] Furthermore, the "pre-adjustment data," which is data related to the work machine 100 before the operability parameters are adjusted, may be acquired by riding on and operating a test ride machine at the work site, by remotely operating the test ride machine at the work site from a remote control room RC, or by using a simulator for the work machine 100. Furthermore, the "evaluation data," which is data related to an evaluation of the operability of the work machine 100 by an operator who actually operates the work machine 100, may be acquired through a display device D1 installed in the remote control room RC, or through a display device D2 installed in the cabin 10 of the work machine 100. Therefore, the work machine system SYS can calculate recommended values ​​for the operability parameters immediately after acquiring the pre-adjustment data and the evaluation data, and the customer can operate the test ride machine with adjusted operability parameters immediately after inputting the evaluation data. In other words, the customer can repeatedly check the operability feel and adjust the operability parameters in real time, and can repeatedly adjust the operability parameters until they achieve their preferred operability feel.

[0118] Furthermore, if pre-adjustment data and evaluation data can be obtained by remotely operating the test vehicle, customers can adjust the operability parameters simply by going to a dealership (a facility with a remote control room RC) located in a convenient location, thereby saving the time required to travel to the work site.

[0119] Furthermore, if pre-adjustment data and evaluation data can be obtained by operating a virtual test ride machine, the customer can try out the operability of the work machine 100 without operating the actual test ride machine. In this case, the customer can perform extreme operations that would be difficult to perform on an actual test ride machine. This is because no matter what operation is performed, it will not physically damage the actual test ride machine. Therefore, in a configuration in which operability parameters are adjusted using a virtual test ride machine, the customer can, for example, reproduce attachment movements that are not frequently performed on an actual work site, evaluate the operability related to such movements, and further adjust the operability parameters related to such movements.

[0120] Furthermore, an administrator skilled in adjusting maneuverability parameters, located in a management center or other facility remote from the work site, can wirelessly adjust the maneuverability parameters of the test-riding machine at the work site, resulting in appropriate adjustments. This is because an administrator skilled in adjusting maneuverability parameters can make non-standard adjustments by taking into account not only pre-adjustment data and evaluation data, but also verbal customer feedback. Specifically, by using various analytical tools, an administrator skilled in adjusting maneuverability parameters can derive recommended maneuverability parameter values ​​that cannot be derived through standard adjustments based on pre-adjustment data and evaluation data. For example, even if the amount of operation of the boom control lever is the same, the movement of the boom 4 differs depending on whether the boom 4 operates independently, whether the boom 4 operates simultaneously with the arm 5, whether the boom 4 operates while traveling, or whether the boom 4 operates while swinging. Furthermore, even if the amount of operation of the boom control lever is the same, the movement of the boom 4 differs depending on whether the bucket 6 contains sediment or not. Therefore, a customer's evaluation such as "Boom 4 moves quickly" can be interpreted in various ways, but by clarifying the conditions under which such an evaluation was made, it becomes possible to adjust the operability parameters appropriately. Such clarification of the conditions can be achieved by increasing the number of evaluation items displayed on the evaluation input screen or by clarifying the content of the text displayed as evaluation items, but an administrator who is familiar with adjusting operability parameters can clarify the conditions more efficiently by, for example, changing the content of the questions to suit the customer, and can more appropriately change which of the multiple operability parameters should be changed.

[0121] With this configuration, the system SYS for work machines can promote sales of models (customized models) whose operability parameters can be individually adjusted to meet the needs of each customer, rather than the sale of mass-produced models in which operability parameters are adjusted and fixed to meet general needs, as in the past.

[0122] As described above, the system SYS for a work machine according to an embodiment of the present disclosure is configured to adjust the operability parameters, which are parameters related to the operability of the work machine 100, based on pre-adjustment data, which is data related to the work machine 100 before adjusting the operability parameters, and evaluation data, which is data related to an evaluation of the operability of the work machine 100 by the operator (remote operator OP) who operates the work machine 100, as shown in FIG. 1 .

[0123] This configuration brings about the effect that the operability of the work machine can be easily adjusted to suit the preferences of the operator. In other words, this configuration brings about the effect that the work machine 100 can be provided as a mass-produced model adjusted to meet the general needs of many customers, or as an individually made-to-order model adjusted to meet the needs of each customer.

[0124] Furthermore, when checking the operability of the work machine 100 to be purchased while remotely operating the work machine 100, the customer (remote operator OP) can confirm that the work machine 100 can be operated with the desired operational feel, without having to go to the work site where the actual work machine 100 is located. Therefore, the method of checking the operability of the work machine 100 to be purchased by remotely operating the work machine 100 can reduce the time required to check the operability of the work machine 100 to be purchased compared to the method of actually boarding and operating the work machine 100. Furthermore, the customer can evaluate the operability of the work machine 100 in a remote control room RC equipped with a variety of analytical equipment, with the support of an administrator of the work machine 100 who is familiar with adjusting operability parameters.

[0125] Another advantage is that the remote control room RC makes it easier to perform multifaceted analysis of pre-adjustment data and visualize pre-adjustment data compared to on-site work. Therefore, the method of remotely operating the work machine 100 to be purchased to check the operability of the work machine 100 brings about the effect that the customer can check the operability of the work machine 100 to be purchased in more detail than the method of actually boarding and operating the work machine 100 to be purchased. The same applies to the method of checking the operability of the work machine 100 using a simulator for the work machine 100 to be purchased. Note that the method of checking the operability of the work machine 100 by actually boarding and operating the work machine 100 to be purchased brings about the effect that the operability of the work machine 100 can be checked while experiencing it more intuitively compared to other methods.

[0126] Also, preferably, the pre-adjustment data includes data relating to the operation of the work machine 100 by the operator (evaluator) who evaluates the operability of the work machine 100.

[0127] This configuration brings about the effect of being able to appropriately adjust the operability parameters compared to when the pre-adjustment data is data relating to the operation of the work machine 100 by someone other than the evaluator.

[0128] Also, preferably, the pre-adjustment data includes data relating to the operation of the work machine 100 by the operator when the combined operation is performed, and the evaluation data includes data relating to an evaluation of the operability when the combined operation is performed.

[0129] This configuration makes it possible to distinguish between the evaluation of operability when a composite operation is not being performed (when a single operation is being performed) and the evaluation of operability when a composite operation is being performed, thereby providing the effect of allowing the operability parameters to be adjusted more appropriately than in the case where no distinction is made between the evaluation of operability when a single operation is being performed and the evaluation of operability when a composite operation is being performed.

[0130] Also, preferably, the operability parameters are limited in their adjustment by the operator.

[0131] This configuration has the effect of preventing the operability parameters from being adjusted erroneously.

[0132] Preferably, the operability parameters are parameters that are not displayed on a display device visible to the operator, such as a display device D1 installed in the remote control room RC or a display device D2 installed in the cabin 10, and are parameters for which adjustment via devices installed on the work machine 100, such as a touch panel or switch, is limited.

[0133] This configuration brings about the effect of more reliably preventing the operability parameters from being adjusted erroneously.

[0134] Also preferably, the system SYS for the work machine is configured to adjust the operability parameters in real time as the evaluation data is input.

[0135] This configuration enables the acquisition of pre-adjustment data, the acquisition of evaluation data, and the adjustment of operability parameters to be repeatedly performed, thereby reducing the time it takes for a customer to find their preferred operability.

[0136] Also, preferably, the system SYS for a work machine is configured to adjust the operability parameters based on pre-adjustment data for each of the plurality of operators and evaluation data for each of the plurality of operators.

[0137] This configuration has the advantage of being able to accommodate cases where the work machine 100 to be purchased is shared by multiple operators. Note that the work machine system SYS may derive a single average value as the value of the operability parameter based on the pre-adjustment data for each of the multiple operators and the evaluation data for each of the multiple operators, or may derive multiple values ​​that differ for each operator.

[0138] Preferably, the pre-adjustment data includes time-series data on the amount of operation of the control lever and time-series data on the movement of the actuator operated by the control lever, and the evaluation data includes data on an evaluation of the operating speed of the actuator.

[0139] This configuration provides the advantage that the operating speed of the actuator can be adjusted to a customer-preferred operating speed. Specifically, this configuration provides the advantage that the raising speed of boom 4 can be adjusted to a customer-preferred raising speed, for example, by adjusting the control gain in controlling the pilot pressure acting on the pilot port of control valve 175.

[0140] Furthermore, the sales promotion system for a work machine according to an embodiment of the present disclosure is configured to adjust the parameters relating to the operability of the work machine 100 based on data relating to the work machine 100 before the parameters relating to the operability of the work machine 100 being sold are adjusted, and data relating to an evaluation of the operability of the work machine 100 by a prospective purchaser who has operated the work machine 100.

[0141] This configuration has the effect of making it possible to easily adjust the operability of the work machine 100 to suit the preferences of the prospective purchaser.

[0142] Furthermore, a sales promotion method for a work machine according to an embodiment of the present disclosure includes the steps of: acquiring data relating to the work machine 100 before parameters relating to the operability of the work machine 100 to be sold are adjusted as pre-adjustment data; acquiring data relating to evaluations of the operability of the work machine 100 by prospective purchasers of the work machine 100 who have operated the work machine 100 as evaluation data; and adjusting the parameters relating to the operability of the work machine 100 based on the pre-adjustment data and the evaluation data.

[0143] This method has the effect of promoting sales of the work machine 100 by making it possible to easily adjust the operability of the work machine 100 to suit the preferences of prospective buyers.

[0144] The preferred embodiments of the present disclosure have been described above. However, the invention according to the present disclosure is not limited to the above-described embodiments. Various modifications, substitutions, etc. may be applied to the above-described embodiments without departing from the scope of the invention according to the present disclosure. Furthermore, each of the features described with reference to the above-described embodiments may be combined as appropriate unless technically inconsistent. [Explanation of symbols]

[0145] 1···Undercarriage 1L··Left travel hydraulic motor 1R···Right travel hydraulic motor 2···Slewing mechanism 2A···Slewing hydraulic motor 3···Upper rotating body 4···Boom 5···Arm 6···Bucket 7···Boom cylinder 8···Arm cylinder 9···Bucket cylinder 10···Cabin 11···Engine 13···Regulator 14···Main pump 15···Pilot pump 17···Control valve unit 26···Operation device 28···Discharge pressure sensor 29···Operation sensor 30···Excavator controller 31···Proportional valve 40··Remote controller 42···Operation device 43···Operation sensor 50···Main controller 51···Data acquisition unit 52···Evaluation data acquisition unit 53···Adjustment unit 100...Work machine 171-176...Control valve A1...Microphone array A2...Speaker AC1...First hydraulic actuator AC2...Second hydraulic actuator CV1...First control valve CV2...Second control valve D1...Display device D2...Display device DS...Operator seat HP1...First hydraulic pump HP2...Second hydraulic pump LV1...First operation lever LV2...Second operation lever NW...Communication line OP...Remote operator PV...Proportional valve RC...Remote operation room S1...Boom angle sensor S2...Arm angle sensor S3...Bucket angle sensor S4...Machine tilt sensor S5...Slewing angular velocity sensor S6...Image capture device S6B...Rear camera S6F...Front camera S6L...Left camera S6R...Right camera S7···Positioning device SYS···System T1···Communication device T2···Communication device TK···Hydraulic oil tank

Claims

1. adjusting the operability parameters, which are parameters related to the operability of the work machine, based on pre-adjustment data, which is data related to the work machine before adjusting the operability parameters, and evaluation data, which is data related to an evaluation of the operability of the work machine by an operator who operated the work machine; A system for a work machine, comprising:

2. the pre-adjustment data includes data related to operation of the work machine by the operator, 10. A system for a work machine according to claim 1.

3. the pre-adjustment data includes data related to the operation of the work machine by the operator when a combined operation is performed, the evaluation data includes data regarding an evaluation of operability when the composite operation is performed.

10. A system for a work machine according to claim 1.

4. the operability parameters are limited to adjustment by the operator; 10. A system for a work machine according to claim 1.

5. The operability parameters are parameters that are not displayed on a display device visible to the operator and are parameters for which adjustment via a device mounted on the work machine is limited.

10. A system for a work machine according to claim 1.

6. adjusting the operability parameters in real time when the evaluation data is input; 10. A system for a work machine according to claim 1.

7. adjusting the operability parameters based on the pre-adjustment data for each of a plurality of operators and the evaluation data for each of the plurality of operators; 10. A system for a work machine according to claim 1.

8. the pre-adjustment data includes time-series data of the operation amount of an operating lever and time-series data of the movement of an actuator operated by the operating lever, the evaluation data includes data regarding an evaluation of an operating speed of the actuator; 10. A system for a work machine according to claim 1.

9. adjusting the operability parameters, which are parameters related to the operability of the work machine to be sold, based on pre-adjustment data, which is data related to the work machine before the operability parameters are adjusted, and evaluation data, which is data related to evaluations of the operability of the work machine by prospective purchasers who have operated the work machine; Sales promotion system for work machines.

10. a step of acquiring data relating to the work machine before adjusting operability parameters, which are parameters relating to the operability of the work machine to be sold, as pre-adjustment data; a step of acquiring data relating to an evaluation of the operability of the work machine by a prospective purchaser who has operated the work machine as evaluation data; adjusting the operability parameters based on the pre-adjustment data and the evaluation data. Methods for promoting work machinery.

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