TIRE MANAGEMENT DEVICE, TIRE MANAGEMENT PROGRAM, AND TIRE MANAGEMENT METHOD

Abstract

To provide a tire management device capable of coping with complex maintenance including filling of internal pressure in addition to management of wear amount for tires of moving bodies including aircraft and vehicles.SOLUTION: A tire management device includes: a data acquisition unit 102 for acquiring wear state data D1, mobile object operation data D2, and tire internal pressure time-series data D3 for each tire 10 mounted on one of mobile objects M1 including aircraft and vehicles; a tire replacement timing information calculation unit 103 for calculating tire replacement timing information d1 corresponding to a state in which a residual groove of the tire is below a preset threshold value on the basis of the wear state data and the mobile object operation data; an internal pressure filling timing information calculation unit 104 for calculating internal pressure filling timing information d2 corresponding to a state in which internal pressure is below a predetermined threshold on the basis of transition of the internal pressure time-series data; and a maintenance indication unit 105 for indicating whether or not maintenance is required for each tire on the basis of the calculated tire replacement timing information and internal pressure filling timing information.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a tire management device, a tire management program, and a tire management method that can be applied to tires of moving bodies including aircraft and vehicles. [Background technology]

[0002] 2. Description of the Related Art Tires of aircraft, which are a type of moving object, are replaced when the amount of wear reaches a predetermined value, for reasons such as ensuring safety.

[0003] Conventionally, various techniques have been proposed relating to tire management devices and the like that predict the amount of tire wear in order to perform such tire replacement work efficiently (Patent Document 1).

[0004] This allows us to manage the amount of tire wear and determine the appropriate time to perform tire replacement work, thereby enabling tire replacement work to be carried out efficiently while also ensuring the safety of aircraft, etc. and preventing tire failures. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2019-105600 A Summary of the Invention [Problem to be solved by the invention]

[0006] Incidentally, for aircraft tires and the like, from the viewpoint of ensuring safety, it is necessary to monitor internal pressure data, and to carry out internal pressure refilling work when the internal pressure falls below a predetermined threshold.

[0007] However, conventional tire management devices and the like have a problem in that they are unable to handle comprehensive maintenance including internal pressure filling work in addition to managing the amount of wear.

[0008] It should be noted that such problems are not limited to aircraft tires, but also apply to the management of various tires mounted on various types of moving objects such as passenger cars, trucks, and buses.

[0009] Therefore, the present invention has been made in consideration of the above problems, and aims to provide a tire management device, a tire management program, and a tire management method that are capable of managing the amount of wear as well as performing comprehensive maintenance, including internal pressure filling, for tires of moving bodies including aircraft and vehicles. [Means for solving the problem]

[0010] A tire management device according to one embodiment of the present invention comprises a data acquisition unit that acquires wear condition data, operation data of the mobile body, and internal pressure time series data of the tires for each tire attached to a mobile body including an aircraft or a vehicle; a tire replacement time information calculation unit that calculates tire replacement time information corresponding to a state in which the remaining tread depth of the tires falls below a predetermined threshold based on the wear condition data and the operation data of the mobile body; an internal pressure filling time information calculation unit that calculates internal pressure refill time information corresponding to a state in which the internal pressure falls below a predetermined threshold based on a trend in the internal pressure time series data; and a maintenance instruction unit that indicates whether or not maintenance is required for each tire based on the calculated tire replacement time information and internal pressure refill time information.

[0011] This makes it possible to handle comprehensive maintenance, including managing wear levels and filling the internal pressure, for tires on moving objects including aircraft and vehicles.

[0012] Furthermore, when the tire change time information and the internal pressure filling time information are within a predetermined period, the maintenance instruction unit can correct both pieces of time information to be the same and give an instruction.

[0013] This allows tire changing and tire pressure filling to be carried out at the same time, improving work efficiency.

[0014] In addition, the maintenance instruction unit can correct and instruct, for each tire mounted on the same moving body, both pieces of time information such that the tire replacement time information and the internal pressure filling time information are the same when at least one of the pieces of time information is within a predetermined period.

[0015] This allows tire changing and tire pressure filling to be carried out at the same time, further improving work efficiency.

[0016] The correction to make both timing information the same can be performed according to whichever of the timings corresponding to the tire replacement timing information and the internal pressure filling timing information is earlier.

[0017] This allows tire changing and internal pressure filling operations to be carried out efficiently.

[0018] In addition, the tire pressure calculator can further include a filling internal pressure calculation unit that calculates the internal pressure to be filled in the tire based on the difference between the first and second times when a first time corresponding to the internal pressure filling time information is earlier than a second time corresponding to the tire replacement time information.

[0019] This makes it possible to calculate the optimum internal filling pressure to bring out the best in the tire's performance.

[0020] The internal pressure calculation unit can calculate the internal pressure to be filled into the tire based on a ratio of a period related to a difference between the first time and the second time to a preset internal pressure filling interval.

[0021] This makes it possible to calculate the optimum internal filling pressure to bring out the best possible tire performance.

[0022] A tire management program according to another aspect of the present invention includes a data acquisition step of acquiring wear condition data, operation data of the mobile body, and internal pressure time series data of the tires for each tire attached to a mobile body including an aircraft or a vehicle; a tire replacement time information calculation step of calculating tire replacement time information corresponding to a state in which the remaining tread depth of the tires falls below a predetermined threshold based on the wear condition data and the operation data of the mobile body; an internal pressure filling time information calculation step of calculating internal pressure refill time information corresponding to a state in which the internal pressure falls below a predetermined threshold based on a trend in the internal pressure time series data; and a maintenance instruction step of instructing whether or not maintenance is required for each tire based on the calculated tire replacement time information and internal pressure refill time information, and is executed by a tire management device.

[0023] This makes it possible to provide a tire management program for tires of moving objects including aircraft and vehicles that handles comprehensive maintenance including internal pressure filling in addition to managing wear.

[0024] A tire management method according to another aspect of the present invention comprises a data acquisition process for acquiring wear condition data, operation data of the mobile body, and internal pressure time series data of the tires for each tire mounted on a mobile body including an aircraft or a vehicle; a tire replacement time information calculation process for calculating tire replacement time information corresponding to a state in which the remaining tread depth of the tires falls below a preset threshold based on the wear condition data and the operation data of the mobile body; an internal pressure filling time information calculation process for calculating internal pressure refill time information corresponding to a state in which the internal pressure falls below a predetermined threshold based on a trend in the internal pressure time series data; and a maintenance instruction process for instructing whether or not maintenance is required for each tire based on the calculated tire replacement time information and internal pressure refill time information.

[0025] This makes it possible to provide a tire management method for tires of moving objects including aircraft and vehicles that handles comprehensive maintenance including internal pressure filling in addition to managing wear. Effect of the Invention

[0026] According to the present invention, it is possible to provide a tire management device, a tire management program, and a tire management method that are capable of managing the amount of wear as well as performing comprehensive maintenance including internal pressure filling for tires of moving bodies including aircraft and vehicles. [Brief description of the drawings]

[0027] [Figure 1] FIG. 2 is a functional block diagram showing a functional configuration of the tire management device according to the embodiment. [Diagram 2] 1 is a schematic configuration diagram showing an example of the configuration of a tire to which a tire management device according to an embodiment is applied; [Diagram 3] 5 is a flowchart showing an example of a processing procedure of a tire management process executed by the tire management device according to the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] A tire management device 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG.

[0029] In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratios of dimensions may differ from those of the actual drawings.

[0030] Therefore, specific dimensions should be determined with reference to the following description. In addition, the drawings may of course include parts with different dimensional relationships and ratios.

[0031] (Schematic configuration of tire management device) The schematic configuration of a tire management device 100 according to an embodiment will be described with reference to the functional block diagram of FIG. 1 and the schematic configuration diagram of FIG.

[0032] The tire management device 100 is composed of, for example, a general-purpose computer or server, and is configured to receive internal pressure data, etc., via a wireless line N1 from a sensor unit SU provided in each tire 10 (10a, 10b, ...) mounted on a moving body M1, including an aircraft or vehicle, as shown in Figure 1.

[0033] As shown in FIG. 2, the tire 10 is mounted on a wheel 11 to form a tire chamber 12.

[0034] The sensor unit SU is provided on the inside of the wheel 11 or on the inner wall of the tire 10. It goes without saying that depending on the type of the moving object M1, for example, if it is an aircraft, an aircraft tire is used, and if it is a vehicle, a vehicle tire is used.

[0035] As shown in FIG. 1, the tire management device 100 includes a receiving unit 101 that receives internal pressure data and temperature data from a sensor unit SU having a transmission function via a wireless line N1.

[0036] The tire management device 100 also includes a data acquisition unit 102 that acquires wear state data D1, operation data D2 of the moving body M1, and tire internal pressure time series data D3 for each tire 10 (10a, 10b . . . ).

[0037] In addition, when the moving body M1 is an aircraft, the operation data D2 corresponds to flight data of the aircraft.

[0038] In addition, the tire management device 100 is equipped with a tire replacement time information calculation unit 103 that calculates tire replacement time information d1 corresponding to a state in which the remaining tread depth of the tire (for example, the depth of the groove 15 on the tread surface of the tire 10 shown in Figure 2) falls below a preset threshold value based on the wear condition data D1 and the operation data D2 of the moving body M1.

[0039] The remaining data of the grooves 15 of the tires 10 may be actual measurements or predictions based on existing measurement techniques (e.g., the techniques disclosed in JP 2019-105600 A and JP 2019-1055599 A). In addition, it is also possible to predict the lifespan of each tire 10 (10a, 10b...) by periodically acquiring actual measurement data on the amount of wear of each tire 10 (10a, 10b...).

[0040] The tire management device 100 also includes an internal pressure filling time information calculation unit 104 that calculates internal pressure filling time information d2 corresponding to a state in which the internal pressure falls below a predetermined threshold, based on a transition of the internal pressure time-series data D3.

[0041] In addition, the tire management device 100 is equipped with a maintenance instruction unit 105 that indicates whether or not maintenance is required for each tire 10 based on the calculated tire replacement time information d1 and internal pressure filling time information d2, and a display unit 200 composed of a liquid crystal display device or the like that displays the maintenance instruction contents, etc.

[0042] This makes it possible to handle comprehensive maintenance, including internal pressure filling, in addition to managing the wear amount of the tires 10 of the moving body M1, including aircraft and vehicles.

[0043] Furthermore, when the tire replacement time information d1 and the internal pressure filling time information d2 are within a predetermined period, the maintenance instruction unit 105 can correct both pieces of information so that they are the same and give an instruction.

[0044] This allows tire changing and tire pressure filling to be carried out at the same time, improving work efficiency.

[0045] Furthermore, the tire management device 100 is equipped with a filling internal pressure calculation unit 106 that calculates the internal pressure to be filled in the tire 10 based on the difference between the first time t1 and the second time (t1-t2 or t2-t1) when the first time t1 corresponding to the internal pressure filling time information d2 is earlier than the second time t2 corresponding to the tire replacement time information d1.

[0046] In addition, the maintenance instruction unit 105 can correct and instruct the tire replacement time information d1 and the internal pressure filling time information d2 for each tire 10 (10a, 10b, ...) mounted on the same moving body M1 so that both pieces of time information are identical when at least one of the information is within a predetermined period.

[0047] This allows tire changing and tire pressure filling to be carried out at the same time, further improving work efficiency.

[0048] In addition, the correction to make both timing information the same can be performed according to whichever timing corresponds to the tire change timing information d1 and the internal pressure filling timing information d2, whichever is earlier.

[0049] This allows tire changing and internal pressure filling operations to be carried out efficiently.

[0050] In addition, the filling internal pressure calculation unit 106 may calculate the internal pressure to be filled in the tire 10 based on the ratio of the period related to the difference between the first time t1 and the second time t2 (t1-t2 or t2-t1) to a predetermined internal pressure filling interval.

[0051] This allows tire changing and internal pressure filling operations to be carried out efficiently.

[0052] Furthermore, when the tire replacement time information d1 and the internal pressure filling time information d2 are within a predetermined period, the maintenance instruction unit 105 may correct both pieces of information so that they are the same.

[0053] This makes it possible to handle comprehensive maintenance, including internal pressure filling, in addition to managing the wear amount of the tires 10 of the moving body M1, including aircraft and vehicles.

[0054] (Tire management process) An example of a procedure of a tire management process executed by the tire management device 100 will be described with reference to a flowchart of FIG.

[0055] When this process starts, first, in step S11, wear condition data D1, operation data D2 of the moving body M1, and internal pressure time series data D3 of the tire 10 are obtained for each tire 10 (10a, 10b, ...) mounted on a moving body M1 including an aircraft or vehicle, and then the process proceeds to step S12.

[0056] In step S12, tire replacement time information d1 corresponding to a state in which the remaining tread depth of the tire 10 falls below a preset threshold is calculated based on the wear state data D1 and the operation data D2 of the moving body M1, and the process proceeds to step S13.

[0057] In step S13, it is determined whether or not the internal pressure has fallen below a predetermined threshold value based on the transition of the internal pressure time-series data D3.

[0058] If the result of the determination is "No", the process returns to step S11, and if the result is "Yes", the process proceeds to step S14.

[0059] In step S14, internal pressure filling timing information d2 corresponding to a state in which the internal pressure falls below a predetermined threshold is calculated, and the process proceeds to step S15.

[0060] In step S15, the internal pressure to be filled into the tire 10 is calculated. More specifically, when the first time t1 corresponding to the internal pressure filling time information 2 is earlier than the second time t2 corresponding to the tire replacement time information d1, the internal pressure to be filled into the tire 10 can be calculated based on the difference between the first time t1 and the second time t2.

[0061] The internal pressure to be filled into the tire 10 may be calculated based on the ratio of a period related to the difference between the first time t1 and the second time t2 to a preset internal pressure filling interval.

[0062] Next, in step S16, based on the calculated tire replacement time information d1 and internal pressure filling time information d2, an instruction is given as to whether or not maintenance is required for each tire 10 (10a, 10b, . . . ), and the process ends.

[0063] The instruction to carry out maintenance can be given by displaying a predetermined message or by outputting a voice.

[0064] This makes it possible to handle comprehensive maintenance, including internal pressure filling, in addition to managing the wear amount of the tires 10 of the moving body M1, including aircraft and vehicles.

[0065] The tire management device, tire condition quantity estimation program, and tire condition quantity estimation method of the present invention have been described above based on the illustrated embodiments, but the present invention is not limited to this, and the configuration of each part can be replaced with any configuration having similar functions.

[0066] For example, if the moving object M1 is an aircraft, the tire pressure can be obtained by a tire pressure sensor (TPMS) or an aircraft sensor. The tire pressure may also be obtained by measuring after the aircraft lands.

[0067] The internal pressure filling time information calculation unit 104 may be reset based on information that a tire change operation or an internal pressure filling operation has been performed. [Explanation of symbols]

[0068] M1 Mobile objects (aircraft, vehicles, etc.) 100 Tire management device 10(10a, 10b…) Tire SU sensor unit 101 Receiving unit 102 Data Acquisition Section 103 Tire replacement time information calculation unit 104 Internal pressure filling time information calculation unit 105 Maintenance Instructions 106 Filling internal pressure calculation unit 200 Display

Claims

1. a data acquisition unit that acquires wear state data, operation data of the mobile body, and time series data of internal pressure of the tire for each tire mounted on a mobile body including an aircraft or a vehicle; a tire replacement time information calculation unit that calculates tire replacement time information corresponding to a state in which the remaining tread depth of the tire falls below a preset threshold value based on the wear state data and operation data of the mobile object; an internal pressure filling time information calculation unit that calculates internal pressure filling time information corresponding to a state in which the internal pressure falls below a predetermined threshold based on a transition of the internal pressure time-series data; a maintenance instruction unit that indicates whether or not maintenance of each of the tires is required based on the calculated tire replacement time information and the calculated internal pressure filling time information; Equipped with The maintenance instruction unit: A tire management device characterized in that, when the tire replacement time information and the internal pressure filling time information are within a predetermined period, the tire management device corrects and instructs both timing information to be the same.

2. The maintenance instruction unit: The tire management device according to claim 1, characterized in that, for each tire mounted on the same moving body, when at least one of the tire replacement time information and the internal pressure filling time information is within a predetermined period, the tire management device corrects and instructs both timing information to be the same.

3. The amendment to make both the aforementioned information periods the same is as follows:

3. The tire management device according to claim 1, wherein the tire management is performed according to an earlier timing corresponding to the tire replacement time information or the internal pressure filling time information.

4. A tire management device as described in any one of claims 1 to 3, characterized in that it further comprises a filling internal pressure calculation unit that calculates the internal pressure to be filled in the tire based on the difference between the first time and the second time when a first time corresponding to the internal pressure filling time information is earlier than a second time corresponding to the tire replacement time information.

5. The tire management device according to claim 4, characterized in that the filling internal pressure calculation unit calculates the internal pressure to be filled into the tire based on a ratio of a period related to the difference between the first time and the second time and a predetermined internal pressure filling interval.

6. a data acquisition step of acquiring wear state data, operation data of the mobile body, and time series data of internal pressure of the tire for each tire mounted on the mobile body including an aircraft or a vehicle; a tire replacement time information calculation step of calculating tire replacement time information corresponding to a state in which the remaining tread depth of the tire falls below a preset threshold value based on the wear state data and operation data of the mobile object; a calculation step of calculating internal pressure filling time information corresponding to a state in which the internal pressure falls below a predetermined threshold value based on a transition of the internal pressure time-series data; a maintenance instruction step of instructing whether or not maintenance of each of the tires is required based on the calculated tire replacement time information and the calculated internal pressure filling time information; having In the maintenance instruction step, When the tire replacement time information and the tire internal pressure filling time information are within a predetermined period, the tire replacement time information and the tire internal pressure filling time information are corrected so that the two information are the same. A tire management program executed by a tire management device.

7. a data acquisition process for acquiring data on wear state, operation data of the vehicle, and time series data on internal pressure of the tire for each tire mounted on a moving object including an aircraft or a vehicle; a tire replacement time information calculation process for calculating tire replacement time information corresponding to a state in which the remaining tread depth of the tire falls below a preset threshold value based on the wear state data and operation data of the mobile object; a calculation step of calculating internal pressure filling time information corresponding to a state in which the internal pressure falls below a predetermined threshold value based on a transition of the internal pressure time series data; a maintenance instruction step of instructing whether or not maintenance is required for each of the tires based on the calculated tire replacement time information and the calculated internal pressure filling time information; having In the maintenance instruction process, A tire management method comprising the steps of: correcting and instructing, when the tire replacement time information and the internal pressure filling time information are within a predetermined period, both pieces of information to be the same.

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