Adjustment system

Abstract

To provide an adjustment system capable of easily adjusting drive characteristics of a solenoid proportional valve.SOLUTION: An adjustment system (1) includes a solenoid proportional valve (13) provided in a hydraulic device (10), which includes a flow path control unit (132) that controls a hydraulic pressure or a flow rate in a flow path according to a relational expression related to drive characteristics and an acquisition unit (131) that acquires a parameter of the relational expression from the outside by wireless communication. The adjustment system also includes an information processing device (20) provided separably from the hydraulic device, which receives an input of a parameter from an operator, determines a relational expression from the parameter, presents the determined relational expression to the operator, and transmits the parameter to the solenoid proportional valve by wireless communication. Further, the adjustment system includes a measurement device (12) that measures an output value of the hydraulic device or a device related to the hydraulic device and presents a measurement result to the operator.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an adjustment system for a hydraulic device. [Background technology]

[0002] 2. Description of the Related Art Conventionally, an adjustment system for adjusting the drive characteristics of an electromagnetic proportional valve used in a hydraulic system has been known.

[0003] In this regard, Patent Document 1 discloses a drive device that generates a PWM (Pulse Width Modulation) signal based on a current command value to an electromagnetic proportional valve, a dither command value related to a dither current, and a detected current flowing through the electromagnetic proportional valve, and supplies the generated PWM signal to the electromagnetic proportional valve. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5362241 Summary of the Invention [Problem to be solved by the invention]

[0005] Because the drive characteristics of solenoid proportional valves vary depending on the environment around and inside the hydraulic system, as well as manufacturing variations in the solenoid proportional valve, it is necessary to easily adjust the drive characteristics. However, the technology described in Patent Document 1 has the problem that setting the drive characteristics of the solenoid proportional valve (the relationship between the drive command value and the current command value) requires an operator with specialized knowledge to perform calculations in advance. Furthermore, the technology described in Patent Document 1 requires the drive characteristics to be adjusted by directly operating the solenoid proportional valve or by operating and setting it using a computer connected by wire, which limits the location where the setting device for the solenoid proportional valve can be installed.

[0006] The present invention has been made in view of the above problems, and an object of the present invention is to provide an adjustment system that can easily adjust the drive characteristics of an electromagnetic proportional valve. [Means for solving the problem]

[0007] In order to solve the above problems, the adjustment system of the present invention is an adjustment system for adjusting the state of a hydraulic device, and includes: an electromagnetic proportional valve that is provided in the hydraulic device and has a flow path control unit that controls the hydraulic pressure or flow rate in a flow path of the hydraulic device in accordance with a relational equation related to drive characteristics, and an acquisition unit that acquires parameters related to the relational equation from the outside via wireless communication; an information processing device that is provided separably to the hydraulic device and has an input unit that accepts input of the parameters from an operator, a determination unit that determines the relational equation based on the input parameters, an output unit that presents the determined relational equation to the operator, and a transmission unit that transmits the parameters to the electromagnetic proportional valve via wireless communication in accordance with operation by the operator; and a measuring device that measures output values ​​of the hydraulic device or equipment related to the hydraulic device and presents the measurement results to the operator.

[0008] The flow path control unit also includes an amplifier circuit that generates an output current according to the relational expression and an input voltage, a solenoid to which the output current is applied, and a drive unit that drives according to a magnetic field generated by the solenoid to control the oil pressure or flow rate in the flow path, the relational expression being a linear function, and the parameters including an intercept value and a slope value in the relational expression.

[0009] In addition, the output unit outputs a graph showing the relational equation to a screen as a manipulable object, and the input unit accepts a drag-and-drop operation on one end of the graph on the intercept side as an input for the value of the intercept, and accepts a drag-and-drop operation on one end of the graph opposite the intercept as an input for the value of the slope.

[0010] The output unit outputs a graph showing the relational expression and an object for manipulating the parameter to a screen, and the input unit receives an operation on the object as an input of the parameter. [Effects of the Invention]

[0011] According to the present invention, the adjusting system can easily adjust the driving characteristics of the proportional solenoid valve. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a diagram showing the overall configuration of an adjustment system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a diagram showing an example of a specific configuration of the proportional solenoid valve shown in FIG. [Figure 3] 2 is a block diagram showing an example of a functional configuration of the information processing device shown in FIG. 1. FIG. [Figure 4A] 2 is a diagram showing an example of content presented to an operator by the information processing device shown in FIG. 1. FIG. [Figure 4B] 1. FIG. 4 is a diagram showing another example of content presented to the operator by the information processing device shown in FIG. [Figure 5] 2 is a flowchart showing an example of the processing flow of the adjustment system shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention (hereinafter referred to as "the present embodiment") will be described with reference to the accompanying drawings. To facilitate understanding of the description, the same components and steps in each drawing will be designated by the same reference numerals as much as possible, and redundant description will be omitted.

[0014] <Overall structure> Fig. 1 is a diagram showing the overall configuration of an adjustment system 1 according to this embodiment. As shown in Fig. 1, the adjustment system 1 is mainly configured to include, for example, a hydraulic device 10 and an information processing device 20. The adjustment system 1 adjusts the state of the hydraulic device 10. Here, the state of the hydraulic device 10 adjusted by the adjustment system 1 is a drive characteristic that indicates the relationship between the input voltage and output current of an electromagnetic proportional valve 13 provided in the hydraulic device 10.

[0015] The hydraulic system 10 is a device that is driven by the hydraulic pressure of hydraulic oil supplied from a hydraulic pump, and is provided as a drive device in, for example, construction machinery, industrial vehicles, special vehicles, industrial machinery, etc. As shown in Fig. 1, the hydraulic system 10 is mainly configured to include, for example, a hydraulic pump 11, a measuring device 12, an electromagnetic proportional valve 13, a hydraulic actuator 14, and a hydraulic tank 15.

[0016] The hydraulic pump 11 is a pump that discharges oil in response to rotation transmitted from an external device such as an electric motor (not shown). The hydraulic pump 11 draws oil supplied from a hydraulic tank 15 in response to rotational force transmitted from the outside, applies pressure to the drawn-in oil in response to the rotational force, and discharges the pressurized oil toward the solenoid proportional valve 13 via a flow meter 122 of the measuring device 12.

[0017] The hydraulic tank 15 is a container for storing oil, and supplies oil from a supply port to the hydraulic pump 11. The hydraulic tank 15 also receives and stores the oil discharged from the hydraulic actuator 14 and returned thereto at a receiving port.

[0018] The electromagnetic proportional valve 13 is provided in the hydraulic system 10 and controls the hydraulic pressure or flow rate in a flow path of the hydraulic system 10 in which the electromagnetic proportional valve 13 is provided. Specifically, the electromagnetic proportional valve 13 is provided in a flow path from the hydraulic pump 11 of the hydraulic system 10 to the hydraulic actuator 14 and controls the hydraulic pressure or flow rate of oil flowing in the flow path. Note that the electromagnetic proportional valve 13 may control both the hydraulic pressure and the flow rate in the flow path, rather than just one of the hydraulic pressure or the flow rate. The electromagnetic proportional valve 13 also acquires parameters related to a relational expression of the drive characteristics of the electromagnetic proportional valve 13 from the outside via wireless communication, and controls the hydraulic pressure or flow rate in the flow path in accordance with the acquired relational expression. The configuration and operation of the electromagnetic proportional valve 13 will be described in detail later, so a description thereof will be omitted here.

[0019] The hydraulic actuator 14 is a mechanism driven by hydraulic pressure, such as a hydraulic motor or a hydraulic cylinder, and is driven by the force and flow of oil supplied to the hydraulic actuator 14. Oil is supplied to a supply port of the hydraulic actuator 14 via the electromagnetic proportional valve 13, and the hydraulic actuator 14 discharges the oil from a discharge port toward a hydraulic tank 15.

[0020] The measuring device 12 measures the output value of the hydraulic system 10 or a device related to the hydraulic system 10, and presents the measurement results to an operator of the adjustment system 1. The device related to the hydraulic system 10 includes an accessory device of the hydraulic system 10 that is configured to be able to communicate with the hydraulic system 10, and a device that operates using the hydraulic system 10 as a drive source. When presenting the measurement results to the operator, the measuring device 12 transmits the measurement results to a display device or a processing device different from the information processing device 20, and presents the measurement results on the display device or the processing device. Note that when presenting the measurement results to the operator, the measuring device 12 may transmit the measurement results to the information processing device 20 via wireless communication, and present the measurement results on the information processing device 20. The measuring device 12 is mainly configured to include, for example, a pressure gauge 121, a flow meter 122, an ammeter 123, a speed sensor 124, a pressure sensor 125, and a force sensor 126.

[0021] The pressure gauge 121 is provided in the flow path between the discharge side of the hydraulic pump 11 and the flow meter 122, and measures the discharge pressure, which is the pressure of the oil discharged from the hydraulic pump 11. The pressure gauge 121 transmits the measurement result of the discharge pressure of the hydraulic pump 11 to a display device, a processing device, or the like.

[0022] The flow meter 122 is provided in the flow path between the discharge side of the hydraulic pump 11 and the electromagnetic proportional valve 13, and measures the discharge flow rate, which is the flow rate of oil discharged from the hydraulic pump 11. The flow meter 122 transmits the measurement result of the discharge flow rate of the hydraulic pump 11 to a display device, a processing device, or the like.

[0023] The ammeter 123 measures the current flowing through the solenoid of the proportional solenoid valve 13. The ammeter 123 transmits the measurement result of the current flowing through the solenoid to a display device, a processing device, or the like.

[0024] The speed sensor 124 is provided near the hydraulic actuator 14 and measures the operating speed when the hydraulic actuator 14 is driven. The speed sensor 124 transmits the measurement result of the operating speed when the hydraulic actuator 14 is driven to a display device, a processing device, or the like.

[0025] The pressure sensor 125 is connected to the flow path of the supply port or the flow path of the discharge port of the hydraulic actuator 14, and measures the oil pressure of the oil flowing into or being discharged from the connected flow path. The pressure sensor 125 transmits the measurement result of the oil pressure of the oil flowing into or being discharged from the connected flow path to a display device, processing device, or the like.

[0026] The force sensor 126 is provided near the hydraulic actuator 14 and measures the force or torque generated by driving the hydraulic actuator 14. The force sensor 126 transmits the measurement result of the force or torque generated by driving the hydraulic actuator 14 to a display device, a processing device, or the like.

[0027] The information processing device 20 is separably provided in the hydraulic device 10, and performs settings related to the drive characteristics of the electromagnetic proportional valve 13 based on input received from the operator of the adjustment system 1. The information processing device 20 also transmits setting information related to the electromagnetic proportional valve 13 to the electromagnetic proportional valve 13 via wireless communication. The information processing device 20 is, for example, a mobile device capable of wireless communication, such as a tablet terminal, a laptop computer, or a smartphone. The information processing device 20 is, for example, a desktop computer capable of wireless communication.

[0028] The information processing device 20 mainly includes a storage device 21, a communication device 22, an input / output device 23, a CPU (Central Processing Unit) 24, and a memory 25. The information processing device 20 functions as various functional components described below when the CPU 24 executes a predetermined program stored in the memory 25 or the storage device 21. The storage device 21 is configured with a hard disk or the like and stores various programs and information required for executing processes in the information processing device 20, as well as information on processing results. The communication device 22 is configured with a communication interface or the like for communicating with external devices and has a wireless communication function. Furthermore, the information processing device 20 mainly includes an input / output device 23 that accepts operations from an operator of the adjustment system 1 and outputs screen display, audio, and the like to the operator. Note that the information processing device 20 may be configured with a single device or multiple devices. Also, FIG. 1 only shows a portion of the main hardware configuration of the information processing device 20, and the information processing device 20 may include other components.

[0029] The configuration of the electromagnetic proportional valve 13 will be described with reference to Fig. 2. Fig. 2 is a diagram showing an example of a specific configuration of the electromagnetic proportional valve 13 shown in Fig. 1. As shown in Fig. 2, the electromagnetic proportional valve 13 is mainly configured to include, for example, an acquisition unit 131 and a flow path control unit 132.

[0030] The acquisition unit 131 is, for example, a receiving circuit for wireless communication, and acquires, via wireless communication, parameters of a relational expression related to the drive characteristics of the electromagnetic proportional valve 13 from the information processing device 20. The acquisition unit 131 transmits the acquired parameters to an amplifier circuit 1321 of the flow path control unit 132.

[0031] The flow path control unit 132 controls the hydraulic pressure or the flow rate in the flow path in which the electromagnetic proportional valve 13 is provided. Specifically, the flow path control unit 132 adjusts the drive characteristics of the electromagnetic proportional valve 13 in accordance with a relational expression determined by parameters transmitted from the acquisition unit 131. The drive characteristics of the electromagnetic proportional valve 13 are, for example, the relationship between the input voltage and the output current of a solenoid 1322 of the electromagnetic proportional valve 13. Then, the flow path control unit 132 controls the hydraulic pressure or the flow rate in the flow path in accordance with the adjusted drive characteristics of the electromagnetic proportional valve 13 in response to a control command transmitted from a control device (not shown) different from the information processing device 20. The flow path control unit 132 is mainly configured to include, for example, an amplifier circuit 1321, a solenoid 1322, a drive unit 1323, and ports 1324 and 1325.

[0032] The amplifier circuit 1321 is a circuit that converts an input voltage supplied from a control device (not shown) into an output current in accordance with a relational expression related to the drive characteristics of the solenoid proportional valve 13, and outputs the converted output current to the solenoid 1322. The amplifier circuit 1321 adjusts the relationship between the input voltage and the output current, which is the drive characteristics of the solenoid proportional valve 13, in accordance with parameters transmitted from the acquisition unit 131.

[0033] Solenoid 1322 is a metal winding formed in a spiral shape from one end to the other, and functions as an electromagnet that generates a magnetic field in response to the output current supplied from amplifier circuit 1321. Solenoid 1322 is provided in a housing, and drive unit 1323 is provided inside so as to be movable along the central axis of solenoid 1322. Solenoid 1322 moves drive unit 1323 in a direction from one end of solenoid 1322 to the other end by the magnetic field it generates.

[0034] The driver 1323 is, for example, a spool provided within the housing, and adjusts the hydraulic pressure or flow rate of oil flowing from port 1324 to port 1325. The driver 1323 is movable along the central axis of the solenoid 1322, with one end located inside the solenoid 1322 and the other end connected by a spring to the inner wall of the housing at the other end. The driver 1323 moves or is positioned within the housing at a location where the magnetic field generated by the solenoid 1322 and the elasticity of the spring connected to the other end are balanced. The other end of the driver 1323 is shaped like a dumbbell, and the space formed by the handle of the dumbbell and the inner wall of the housing functions as a flow path for oil flowing from port 1324 to port 1325 provided in the housing. The driver 1323 adjusts the hydraulic pressure or flow rate from port 1324 to port 1325 depending on the position of the space within the housing.

[0035] Ports 1324 and 1325 are holes provided on the outer periphery of the housing. Port 1324 functions as a supply port that receives oil supplied from the hydraulic pump 11 to the solenoid proportional valve 13. Port 1325 functions as a discharge port that discharges oil from the solenoid proportional valve 13 toward the hydraulic actuator 14.

[0036] <Functional configuration> The configuration of the solenoid proportional valve 13 has been described above. Next, the functional configuration of the information processing device 20 in the adjustment system 1 will be described. FIG. 3 is a block diagram showing an example of the functional configuration of the information processing device 20. As shown in FIG. 3, the information processing device 20 is configured such that its main functional components include, for example, an input unit 210, a determination unit 211, an output unit 212, a transmission unit 213, and a storage unit 220. Note that the functional means other than the storage unit 220 are realized by the CPU 24 executing programs stored in the storage device 21 or the like.

[0037] The input unit 210 receives input operations from the operator of the adjustment system 1 regarding parameters of a relational expression related to the drive characteristics of the electromagnetic proportional valve 13. The input unit 210 also receives various input operations for the content 221 from the operator of the adjustment system 1. Note that the input unit 210 receives, as input operations from the operator, input from a mouse, input from a keyboard, input to a touch panel, etc.

[0038] The determination unit 211 determines a relational expression related to the drive characteristics of the solenoid proportional valve 13 based on the parameters received by the input unit 210. The determination unit 211 also stores the parameter values ​​of the determined relational expression in the storage unit 220 as setting information 222.

[0039] The output unit 212 presents to the operator the relational equation regarding the drive characteristics of the solenoid proportional valve 13 determined by the determination unit 211. The output unit 212 presents the relational equation to the operator, for example, by displaying a graph of the relational equation, parameter values, etc. on a screen.

[0040] The transmitting unit 213 transmits the parameters determined by the determining unit 211 to the proportional solenoid valve 13 by wireless communication in response to an operation by the operator.

[0041] The storage unit 220 stores a control program for the information processing device 20. The storage unit 220 also stores content 221 for setting the electromagnetic proportional valve 13 and setting information 222 indicating the details of the setting for the electromagnetic proportional valve 13.

[0042] Here, the content 221 will be described with reference to Fig. 4A. Fig. 4A is a diagram showing an example of the content 221 presented to the operator by the information processing device 20 shown in Fig. 1. As shown in Fig. 4A, the content 221 is an application or program that can be operated by the operator and is displayed on the screen of the information processing device 20. The main part of the content 221 includes, for example, a plot area 2210, a graph 2211, and a button 2212.

[0043] The plot area 2210 is an area for displaying a graph 2211 of a relational expression relating to the drive characteristics of the solenoid proportional valve 13. In the plot area 2210, the input voltage of the solenoid 1322 is displayed as the horizontal axis of the graph 2211, and the output current of the solenoid 1322 is displayed as the vertical axis of the graph 2211. In addition, in the plot area 2210, the graph 2211 of the relational expression relating to the drive characteristics is arranged along the horizontal and vertical axes.

[0044] Graph 2211 is a graph showing a relational expression relating to the drive characteristics of the solenoid proportional valve 13. Graph 2211 is an object that can be operated by an operator, and is placed in plot area 2210. The relational expression shown by graph 2211 is a linear function, and is expressed as f(x)=ax+b... (Equation 1). Here, variable x indicates input voltage. Furthermore, function f(x) indicates output current. Furthermore, slope a is a parameter that indicates the slope of graph 2211. Furthermore, intercept b is a parameter that indicates the intercept of graph 2211.

[0045] Both ends of graph 2211 can be moved in a direction parallel to the vertical axis by drag-and-drop. When a drag-and-drop operation is performed on area A1 including one end P1 on the intercept b side of graph 2211, one end P1 moves to the position where the drop operation was performed. When a drag-and-drop operation is performed on area A2 including one end P2 on the opposite side of intercept b, one end P2 moves to the position where the drop operation was performed.

[0046] The button 2212 is a button for determining the relational expression regarding the drive characteristics of the solenoid proportional valve 13. When the button 2212 is pressed by the operator, the determination unit 211 determines the temporary function indicated by the graph 2211 displayed in the plot area 2210 as the relational expression regarding the drive characteristics of the solenoid proportional valve 13.

[0047] Returning to FIG. 3, the setting information 222 is information indicating the parameter values ​​of the relational expression of the driving characteristics expressed by Equation 1.

[0048] <Process flow> The above has described the functional configuration of the information processing device 20. Next, the operation of the adjustment system 1 will be described with reference to Fig. 5. Fig. 5 is a flowchart showing an example of the processing flow of the adjustment system 1 shown in Fig. 1.

[0049] (Step SP10) The information processing device 20 outputs the content 221 to the screen by the output unit 212. Specifically, the information processing device 20 outputs the content 221 to the screen, the content 221 including a graph 2211 showing a relational expression related to the drive characteristics of the solenoid proportional valve 13. Then, the processing proceeds to the processing of step SP12.

[0050] (Step SP12) The information processing device 20 determines whether or not an input has been received from the operator of the adjustment system 1 through the input unit 210. Specifically, the information processing device 20 determines whether or not a drag-and-drop operation has been performed by the operator on the graph 2211 of the content 221 through the input unit 210. If the determination is affirmative, the process proceeds to step SP14. On the other hand, if the determination is negative, the process repeats step SP12.

[0051] (Step SP14) The information processing device 20, by using the determination unit 211, determines the parameters of the relational equation related to the drive characteristics of the solenoid proportional valve 13. Specifically, the information processing device 20, by using the determination unit 211, determines the coordinate in the vertical axis direction of one end P1 of the graph 2211 as the value of intercept b of the parameter of the relational equation. Furthermore, the information processing device 20, by using the determination unit 211, divides the difference between one end P1 and one end P2 in the vertical axis direction by the difference between one end P1 and one end P2 in the horizontal axis direction to determine the value of slope a, which is the parameter of the relational equation. Then, the processing returns to the processing of step SP16.

[0052] (Step SP16) The information processing device 20, through the determining unit 211, determines a relational expression relating to the drive characteristics of the solenoid proportional valve 13 by substituting the parameters determined in the processing of step SP14 into Equation 1. Then, the processing proceeds to the processing of step SP18.

[0053] (Step SP18) The information processing device 20 updates the content 221 by the output unit 212 so that the graph 2211 indicates the determined relational expression. Furthermore, the information processing device 20 outputs the updated content 221 to the screen by the output unit 212. Then, the processing proceeds to the processing of step SP20.

[0054] (Step SP20) The information processing device 20 determines whether or not the button 2212 of the content 221 has been pressed by the operator through the input unit 210. If the determination is affirmative, the process proceeds to step SP22. On the other hand, if the determination is negative, the process returns to step SP12.

[0055] (Step SP20) The information processing device 20 causes the determination unit 211 to store the parameters of the current relational equation as setting information 222 in the storage unit 220. Furthermore, the information processing device 20 causes the transmission unit 213 to transmit the parameters of the relational equation indicated by the setting information 222 to the solenoid proportional valve 13 of the hydraulic device 10 by wireless communication. Then, the processing proceeds to step SP24.

[0056] (Step SP24) The information processing device 20 determines whether or not a stop command to stop the operation has been input from the operator via the input unit 210. If the determination is affirmative, the process proceeds to step SP26. On the other hand, if the determination is negative, the process returns to step SP12.

[0057] (Step SP26) The information processing device 20 stops the screen output of the content 221 by the output unit 212. Then, the series of processes shown in FIG.

[0058] Next, the operation of the hydraulic device 10 side in the adjustment system 1 will be described in detail. (Step SP28) The hydraulic device 10 drives the electromagnetic proportional valve 13 in accordance with the setting of the drive characteristic of the electromagnetic proportional valve 13 adjusted by the amplifier circuit 1321. Then, the process proceeds to the process of step SP30.

[0059] (Step SP30) The hydraulic system 10 measures the output value of the hydraulic system 10 or a device related to the hydraulic system 10 using the measuring device 12. Measurement items include, for example, the oil pressure or flow rate in the flow path in which the electromagnetic proportional valve 13 is provided, and the current flowing through the solenoid 1322 of the electromagnetic proportional valve 13. Further measurement items include, for example, the operating speed of the hydraulic actuator 14, the oil pressure or flow rate in the flow path connected to the hydraulic actuator 14, and the force or torque generated by the hydraulic actuator 14. Then, the process proceeds to step SP32.

[0060] (Step SP32) The hydraulic system 10 presents the results of each measurement item measured by the measuring device 12 to the operator by outputting them on a screen such as a display device. Then, the process proceeds to step SP34.

[0061] (Step SP34) The hydraulic device 10 acquires parameters of a relational expression relating to the drive characteristics of the electromagnetic proportional valve 13, which are transmitted from the information processing device 20, using the acquisition unit 131 of the electromagnetic proportional valve 13. The hydraulic device 10 adjusts the relationship between the input voltage and the output current, which is the drive characteristics of the electromagnetic proportional valve 13, in accordance with the acquired parameters using the amplification circuit 1321 of the electromagnetic proportional valve 13, and updates the setting. Then, the processing proceeds to step SP36.

[0062] (Step SP36) The hydraulic device 10 determines whether a stop command to stop operation has been input or transmitted from an operator or a control device (not shown). If the determination is affirmative, the process proceeds to step SP38. On the other hand, if the determination is negative, the process returns to step SP28.

[0063] (Step SP38) The hydraulic device 10 stops the driving operation of the entire device, and the series of processes shown in FIG.

[0064] <Effects> As described above, in this embodiment, the adjustment system 1 includes the electromagnetic proportional valve 13 provided in the hydraulic device 10, the information processing device 20 separably provided in the hydraulic device 10, and the measuring device 12. The electromagnetic proportional valve 13 also includes a flow path control unit 132 that controls the hydraulic pressure or flow rate in the flow path of the hydraulic device 10 in accordance with a relational expression related to the drive characteristics, and an acquisition unit 131 that acquires parameters related to the relational expression from the outside via wireless communication. The information processing device 20 also includes an input unit 210 that accepts parameter input from an operator and a determination unit 211 that determines the relational expression based on the input parameters. The information processing device 20 also includes an output unit 212 that presents the determined relational expression to the operator, and a transmission unit 213 that transmits the parameters to the electromagnetic proportional valve 13 via wireless communication in response to an operation by the operator. The measuring device 12 also measures an output value of the hydraulic device 10 or a device related to the hydraulic device 10 and presents the measurement results to the operator. Therefore, the adjustment system 1 allows the operator to input data into the information processing device 20, which is installed so as to be separated from the hydraulic device 10, while checking the measurement results of the measuring device 12, thereby making it easy to adjust the drive characteristics of the electromagnetic proportional valve 13.

[0065] In this embodiment, the flow path control unit 132 includes an amplifier circuit 1321 that generates an output current according to the relational expression and an input voltage, and a solenoid 1322 to which the output current is applied. The flow path control unit 132 also includes a drive unit 1323 that is driven in response to a magnetic field generated by the solenoid 1322 to control the hydraulic pressure or flow rate in the flow path. The relational expression is a linear function. The parameters include an intercept value and a slope value in the relational expression. Therefore, the adjustment system 1 adjusts the drive characteristics using a simple method of determining the intercept and slope parameters of the linear function. Therefore, even if an operator does not have advanced specialized knowledge about the hydraulic device 10 or the solenoid proportional valve 13, the operator can easily adjust the drive characteristics of the solenoid proportional valve 13.

[0066] Furthermore, in this embodiment, the output unit 212 outputs a graph 2211 indicating the relational equation to the screen as a manipulable object. Furthermore, the input unit 210 accepts a drag-and-drop operation on one end of the graph 2211 on the intercept side as an input for the intercept value, and accepts a drag-and-drop operation on one end of the graph 2211 opposite the intercept as an input for the slope value. Therefore, the adjustment system 1 adjusts the drive characteristics by an intuitive method of performing a drag-and-drop operation on the manipulable graph 2211 output on the screen, and therefore the operator can easily adjust the drive characteristics of the solenoid proportional valve 13 without performing complex calculations.

[0067] <Modification> The present invention is not limited to the above-described embodiments. In other words, variations of the above-described embodiments, which are appropriately modified by a person skilled in the art, are also included within the scope of the present invention as long as they include the features of the present invention. Furthermore, the elements of the above-described embodiments and the modifications described below can be combined to the extent technically possible, and such combinations are also included within the scope of the present invention as long as they include the features of the present invention.

[0068] For example, in the present embodiment, the information processing device 20 accepts input of parameters of the relational equation of the drive characteristics of the solenoid proportional valve 13 by the operator performing a drag-and-drop operation on both ends of the graph 2211 on the content 221, but this is not limited to this. The adjustment system 1 may accept input of parameters of the relational equation of the drive characteristics of the solenoid proportional valve 13 by another operation on the content 221 by the operator. Here, another operation method for the content 221 will be described with reference to FIG. 4B. FIG. 4B is a diagram showing another example of the content 221 presented to the operator by the information processing device 20 shown in FIG. 1.

[0069] 4B includes, for example, a plot area 2230, a graph 2231, a button 2232, and scroll bars 2233 and 2234. Note that plot area 2230 and button 2232 are the same as plot area 2210 and button 2212, and therefore a description thereof will be omitted here.

[0070] Graph 2231 is a graph showing a relational expression relating to the drive characteristics of the solenoid proportional valve 13. In graph 2231, the position of one end P1 moves along the vertical axis direction by an input operation on scroll bar 2233. In addition, in graph 2231, the position of one end P2 moves along the vertical axis direction by an input operation on scroll bar 2234.

[0071] The scroll bar 2233 is an object for adjusting the intercept b, and the position of the bar in the vertical direction corresponds to the value of the intercept b of the relational equation that represents the drive characteristics of the solenoid proportional valve 13. The scroll bar 2234 is an object for adjusting the slope a, and the position of the bar in the vertical direction corresponds to the value of the slope a of the relational equation that represents the drive characteristics of the solenoid proportional valve 13.

[0072] According to this configuration, the adjustment system 1 can easily adjust the drive characteristics of the proportional solenoid valve 13 while responding to various input operations, not limited to drag-and-drop operations on the graph 2211.

[0073] Furthermore, the adjustment system 1 may accept input of parameters of the relational equation for the drive characteristics of the solenoid proportional valve 13 not only by operations on the scroll bars 2233 and 2234 arranged in the content 221 but also by operations on various objects. The adjustment system 1 may accept input for the values ​​of the intercept b and the slope a, for example, by the rotation angle of an object in the shape of a rotatable volume. The adjustment system 1 may also accept input for the values ​​of the intercept b and the slope a, for example, by entering numerical values ​​into text boxes. With this configuration, the adjustment system 1 can easily adjust the drive characteristics of the solenoid proportional valve 13 while responding to operations on various objects arranged in the graph 2211.

[0074] Furthermore, the adjustment system 1 may accept input of parameters of the relational equation for the drive characteristics of the electromagnetic proportional valve 13 not only through operations on objects arranged in the content 221, but also through gesture operations on the content 221. The gesture operations are, for example, predetermined patterns including click operations or press operations, move operations, and stop operations, and the order of these operations. With this configuration, the adjustment system 1 can intuitively and easily adjust the drive characteristics of the electromagnetic proportional valve 13 without having to perform precise operations on small objects.

[0075] Furthermore, the adjustment system 1 may adjust the values ​​of the intercept b and the slope a by an amount of change corresponding to the speed of an operation performed on an object placed in the content 221. The object is, for example, a scroll bar or a volume control. Specifically, when an operation is performed on an object placed in the content 221 at a speed faster than a predetermined moving speed, the adjustment system 1 changes the associated values ​​of the intercept b and the slope a by a first value. When an operation is performed on an object placed in the content 221 at a speed slower than the predetermined moving speed, the adjustment system 1 changes the associated values ​​of the intercept b and the slope a by a second value smaller than the first value. With this configuration, the adjustment system 1 adjusts the parameters by an amount of change corresponding to the speed of an operation performed on an object placed in the content 221, thereby making it possible to intuitively and easily adjust the drive characteristics of the solenoid proportional valve 13. [Explanation of symbols]

[0076] 1...adjustment system, 10...hydraulic device, 12...measuring device, 13...electromagnetic proportional valve, 20...information processing device, 131...acquisition unit, 132...flow path control unit, 210...input unit, 211...determination unit, 212...output unit, 213...transmission unit

Claims

1. 1. A regulation system for regulating a condition of a hydraulic device, comprising: a flow path control unit provided in the hydraulic device, which controls the hydraulic pressure or flow rate in a flow path of the hydraulic device in accordance with a relational expression related to drive characteristics, and an electromagnetic proportional valve having an acquisition unit which acquires parameters related to the relational expression from outside via wireless communication; an information processing device that is separably provided on the hydraulic device and includes an input unit that receives input of the parameters from an operator, a determination unit that determines the relational expression based on the input parameters, an output unit that presents the determined relational expression to the operator, and a transmission unit that transmits the parameters to the electromagnetic proportional valve by wireless communication in response to an operation by the operator; a measuring device that measures an output value of the hydraulic system or a device related to the hydraulic system and presents the measurement result to the operator; An adjustment system comprising:

2. the flow path control unit includes an amplifier circuit that generates an output current in accordance with the relational expression and an input voltage, a solenoid to which the output current is applied, and a drive unit that is driven in accordance with a magnetic field generated by the solenoid to control the oil pressure or the flow rate in the flow path, The relational expression is a linear function, The adjustment system of claim 1 , wherein the parameters include an intercept value and a slope value in the relationship.

3. the output unit outputs a graph showing the relational expression to a screen as an operable object; The adjustment system according to claim 2, wherein the input unit accepts a drag-and-drop operation on one end of the graph on the intercept side as an input for the value of the intercept, and accepts a drag-and-drop operation on one end of the graph opposite the intercept as an input for the value of the slope.

4. the output unit outputs a graph showing the relational expression and an object for manipulating the parameter to a screen; The adjustment system according to claim 2 , wherein the input unit receives an operation on the object as an input of the parameter.

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