• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A method of evaluating thermal stresses related to the use of a tire mounted on a rim comprising the steps in which: - a temperature of a gaseous fluid contained in an internal cavity of the tire is measured at regular time intervals, as well as a temperature of the rim, - a temperature is estimated in at least one internal zone of the constituent materials of the tire by means of a pre-established law connecting this temperature to the temperature of the gaseous fluid contained in the internal cavity of the tire and the temperature of the rim.
    公开号:FR3034045A1
    申请号:FR1552412
    申请日:2015-03-24
    公开日:2016-09-30
    发明作者:Olivier Spinnler；Philippe Dondey
    申请人:Michelin Recherche et Technique SA Switzerland ；Compagnie Generale des Etablissements Michelin SCA；Michelin Recherche et Technique SA France；
    IPC主号:
    专利说明:

    [0001] The present invention relates to the field of monitoring the performance of tires while driving on a vehicle. The invention, although not limited to this particular use, is of particular interest in the monitoring of tires fitted to civil engineering machinery, such as dumpers, carrying heavy loads and traveling on aggressive soil in quarries or in mines. These vehicles usually comprise a front steering gear comprising two steered wheels and a rear axle, usually rigid, comprising four drive wheels distributed in pairs on each side. A train being defined as an assembly for connecting the vehicle structure to the ground. The performance requirements lead the manufacturers of these machines to increase the load capacity as much as possible. The size of these vehicles is therefore more and more imposing and their total weight in load can reach up to 600 tons. This results in an increase in the size of the tires, whose diameter can reach several meters. But the limitation of the loading capacity of this type of vehicle is most often imposed by the ability of the tires to withstand these high loads, while allowing the vehicle to move at speeds compatible with the performance requirements.
    [0002] As a result, the operators of these machines are increasingly interested in monitoring and controlling the parameters likely to modify the performance of the tires, such as the nature of the grounds on which the machines circulate, the inclination and the radii of curvature of the tires. paths taken, the speed of travel, the load transported, the outside temperature, the snow, etc.
    [0003] Because all these factors have the effect of changing the temperature of the rubber components forming the tire. And, it is known, moreover, that the rise in temperature of these components beyond a certain limit during a given period of time, can lead to a degradation of the materials formed based on rubber mixtures and a rapid lapse of the Pneumatic. Also, many indicators have been proposed to inform the operator of the limits of load and speed not to be exceeded. The document US6044313 thus proposes to calculate at regular time intervals an indicator formed by the product of the load carried by the distance traveled during the period separating two measurements, and to provide an alert when this indicator, still known by the acronym of TKPH, exceeds a certain limit. This indicator, however, has the disadvantage of not being sensitive to the particular conditions seen by a given tire and not taking into account the actual driving conditions experienced by this tire. The document FR2898679 proposes to correct this estimate by taking into account a vehicle utilization parameter such as its direction, the radius of the curves, its inclination, the width of the track, or a parameter related to its environment such as the temperature. external, the nature of the soil, the snow. The indicator obtained makes it possible to evaluate the state of the stresses more precisely, but is not sufficient to accurately assess the limit beyond which the tire would suffer irreversible damage, which forces the operator to determine warning thresholds taking into account safety factors, and penalizing the optimal use of its machines. To solve this problem, the document WO2008 / 046766 suggests having a temperature sensor in the internal areas of the tire most sensitive to heating, such as the ends of the web, the tread or the low zone, and issue an alert when the measured temperature exceeds a given limit value. This device is of course accurate and efficient, but it requires a sensor and the transmission means associated with the core of the material forming the tire, which can be expensive and delicate. The object of the invention is to propose a method for evaluating the thermal stresses associated with the use of a tire based on the measurement at regular time intervals of a temperature of a gaseous fluid contained in an internal cavity of the tire. and a temperature at a location of a rim on which said tire is mounted, and on the estimation of a temperature in at least one inner zone of the constituent materials of the tire by means of a predetermined law connecting this tire. temperature at the temperature of the gaseous fluid contained in the internal cavity of the tire and at the temperature of the rim. The temperature of the gaseous fluid contained in the internal cavity of the tire, as a rule of the air, changes as a function of the temperature of the means capable of containing this volume of gas, namely the tire itself and the rim on which it has climbed. Real-time monitoring of the temperature of the internal air and the rim can be done cheaply and reliably. This results in a more precise approach to the temperature of the internal components forming the tire making it possible to more accurately determine the limits of use of the vehicle on which said tire is mounted. This evaluation also makes it possible to individually monitor each tire in its actual operating conditions. The method according to the invention may also comprise in isolation or in combination the following characteristics: the pre-established law making it possible to estimate the temperature Tzi of said internal zone of the constituent materials of the tire is a law which is a function of the temperature TAI of the gaseous fluid contained in the internal cavity of the tire and the temperature T., at a location of the rim of the type: TZI ,, T TZ1 = aTAI TAI _L uT-- ZI 1j _L ZIO where, for a given internal area of a given type of tire, aTT Azli, aT; I, Tzjo are coefficients determined experimentally. The temperature of the gaseous fluid contained in the internal cavity of the tire used for estimating the temperature of an internal zone of a constituent material of the tire is a smoothed temperature TAIlissée resulting from a weighted average of the temperatures of the gaseous fluid contained in the internal cavity of the tire, measured over a given time interval. The smoothed temperature is determined using a pre-established law of the type: TAI smooth (0) - 1/2 (TAi-Pi + TAii + 1.Pi + 1). (t1 + 1- t1) ri-1.1 / 2 (p1 + Pi-F1) - (t1 + 1 t1) where TA ,, represents the value of the temperature of the gaseous fluid contained in the internal cavity of the tire measured at time t1 , p, represents a weighting coefficient (p1 = 1 -) and TINT represents a time interval during which TINT is made of at least two measurements of the temperature of the air contained in the internal cavity of the tire. the temperature of the gaseous fluid contained in the internal cavity of the tire used for estimating the temperature of an internal zone of the constituent material of the tire is readjusted according to the evaluation of the increase or decrease in the value of the temperature over a given time interval so as to take account of the delay in the evolution of the temperature of said gaseous fluid contained in the internal cavity of the tire relative to the temperature of the internal zone of the constituent material of the tire in question. at a given time value, the temperature of the gaseous fluid contained in the internal cavity of the tire used for estimating the temperature of the internal zone of a constituent material of the tire is determined by a predetermined law; of the type: TAiretard (t) = TAI (t) r - TAI (0 - (1 - eAtIr) where TAI 'represents, at time t, the value of the derivative of TAI, and where, for a given internal zone of a given tire type, r represents a heat transfer period in the internal zone considered whose value is adjusted according to whether the value TAI (t) is increasing or decreasing, At represents the time between two measurements. in which: the value of a pressure of the gaseous fluid contained inside the internal cavity of the tire, as well as the value of a load carried by the tire, is measured at regular intervals; estimate of the value of the temperature of an internal zone of a constituent material of the tire as a function of the measured values of the pressure and the load. 10 at a given time value, the pre-established law making it possible to estimate the temperature Tzi of said internal zone of the constituent materials of the tire is a law which is a function of the temperature TAI of the gaseous fluid contained in the internal cavity of the tire of the temperature T., at a location of the rim, the pressure P and the load Z, of the type: 15, Tzl T ', TZI.T; j_. Tzi P az Tzi Tz1 = 'TAI AI + T - `.1. Where, for a given internal area of a given tire type, aTTAzil, apTziazTzi, Tm are experimentally determined coefficients. the internal temperature of the constituent materials of the tire situated in at least one of the zones of the tire selected from one end of a working ply, a bead, a tread, is estimated. at each time value the measured values of pressure and load temperatures are transmitted to a remote operator. said internal temperature of a constituent material of the tire is transmitted to a remote operator. an alert is issued when said internal temperature of the constituent material of the tire exceeds a given threshold for a given period of time.
    [0004] The invention also provides a device for carrying out the method comprising: data exchange means with sensors capable of acquiring values of charge and pressure temperature to be treated, at least one unit computer processing, and - coded instructions for performing the steps of the method. Finally, the invention provides software comprising code elements programmed for the implementation of the method when said software is loaded into a computer processing unit and executed by said processing unit. This software can be in the form of a software. product recorded on a medium readable by a computer processing unit, comprising programmed code elements. The invention will be better understood on reading the appended figures, which are provided by way of example and are in no way limiting, in which: FIG. 1 represents a schematic sectional view of a tire mounted on its rim; FIG. 2 represents the evolution of a weighting coefficient pi in a time interval TINT; FIG. 3 represents a diagram making it possible to compare the value of the internal temperature of the materials situated at the edge of the end of Summit webs estimated using the method according to the invention and the temperature in the same inner area measured using an experimental thermocouple inserted into the tire. In the following, the numerical values given by way of example and to support the description of the invention have been obtained for a tire type Michelin 30 RX XDR B4 MichelinTM. Similarly, in the numerical examples, the temperature values are expressed in degrees Celsius, the pressure values in bars, and the load values in metric tons. The half-section illustrated in FIG. 1 makes it possible to visualize a tire 1 formed of an assembly of rubber-based materials and reinforcements, generally of metal, comprising a carcass reinforcement ply 2 joining at its two ends a bead zone 4 at the level of which the connection between the tire 1 and the rim 6 is established. In the case in point, the ply 2 is anchored around a bead wire 41. The crown of the tire comprises a tread 5 the part of which external is intended to come into contact with the ground. This crown portion is reinforced by metal plies 3 formed of unitary son sections, generally metal, embedded in rubber and at a given angle with the circumferential direction. The gaseous fluid is contained in the internal cavity 8 delimited by the internal walls of the tire 1 and the rim 6.
    [0005] In normal use, the tire is inflated with gaseous fluid. The fluid 3034045 6 most commonly used is of course atmospheric air, but it is equally likely to inflate the tire with nitrogen or with an inert gas of higher density so as to limit leaks and leaks. risk of oxidation of metal reinforcements. Depending on the driving conditions imposed on the tire, some internal zones 5 are allowed to heat up faster than others. This is particularly the case of the zone situated at the N-end of the reinforcing plies 3, or of the zone C situated at the center of the tire at the base of the gum loaves forming the tread pattern, or else the internal zone B of the bead. The measurement of the temperature TAI or of the pressure of the internal air contained in the tire is done in a known manner using a device 71 of the TPMS type (lyre Pressure Monitoring System) which estimates at intervals of time the pressure and the temperature prevailing inside the internal cavity of the tire. The pressure and temperature values are transmitted by radio frequency to a receiver arranged in the vehicle cabin, and can also be sent to a remote receiver such as an operational control station in which the control means of the vehicle are concentrated. fleet of craft working in a mine. The sensor 71 can be implanted as an example on the lower part of the inner wall of the tire sidewall. The measurement of the temperature T of the rim 6 can also be done using a temperature sensor 72. This sensor can be of the same type as the previous one. In the example supported by FIG. 1, the sensor 72 is located inside the internal cavity 8. It is glued to a position located between the two hooks of the lower part of the tire. This non-limiting arrangement makes it possible to isolate the temperature sensor from external aggressions. But it is also entirely possible to arrange the sensor 72 on a portion of the rim located outside the internal cavity 8, at a location representative of the heat exchanges between the air of the internal part and the external air and passing through the rim. The measurement of the internal air temperature TAI or the temperature of the rim T. is performed at regular time intervals, for example every minute.
    [0006] It has been shown that a linear law of the type: = aTA; 7, TTiz.11. (a) TZI TAI a TZIO was a good approach to the relationship between the internal air temperature TAI, the temperature of the rim T., and the temperature Tz1 of an internal zone Z / of the constituent materials of the internal part of the tire and cited above.
    [0007] In this law, aTal, aTTI, Tzio, are coefficients determined experimentally for a given internal area of a given type of tire. However, it is observed that the temperature values, in particular the value of the internal air temperature, may experience instantaneous variations which are not generated by a supply of calories from a rise or fall in the temperature. internal components forming the tire. Also, it is useful to smooth these temperature values over a given period of time TINT, by weighting the measured temperature values during this period of a coefficient pi linearly changing from 0 to 1 over the interval. time, as shown in the diagram of FIG. 2: pi = 1 TINT) (b) This gives a value of the smoothed temperature over the period of time resulting from n measurements taken during this period TINT I and for which influence of the oldest measures decreases.
    [0008] Thus, for example, the value of the internal air temperature TAI used in the calculation formula (a) becomes: Smooth TAI 0) - EriL-1.1 / 2 Er_11 1/2 + 1) - (ti + ti) (c) The value of this smoothing period TINT can usefully be in the order of 30 to 40 minutes. The value of the temperature of the rim can also be smoothed with the same weighting coefficient and over the same period of time.
    [0009] T3 is then replaced in formula (a) by the value Tili'e Er_11- 1/2 (Tii.pi + ti) (d) Tjussee (t) - Er7.1 / 2 Another phenomenon also requires to be taken in order to improve the reliability of the result obtained, and lies in the fact that the thermal energy generated in an inner zone of a constituent material of the tire takes a certain time to progress towards the inner surface and to heat exchange with the air contained in the internal cavity of the tire This phenomenon is known as the retard effect. Thus, the temperature of the internal air TAI used in the formula (a) is replaced by a fictitious T _AI-delay temperature obtained as follows: TAiretard (t) = TAI (t) + y - TAI (t). (1 - eu / r) (e) where TAI represents the value of the internal air temperature, and preferably the value of the smoothed internal air temperature obtained in (d), TAI 'represents, at time t, the value of the derivative of TAI and where, for a given tire type, r represents the heat transfer period in the internal zone considered, the value of which is adjusted according to whether the value TAI (t) is increasing or decreasing, At represents the time between two measurements. The evaluation of the value of the derivative of the temperature at time t can easily be calculated by searching for a regression line of type y = a + b - t, where for n values (TAI, ti) of t-TINTD at t, the error is minimized: Et = iPt - (YL- (a + b - t3) 2 (f) The regression uses the same type of weighting pi as that used in (b) for smoothing temperature data The coefficients (a, b) are given by the solution of the following matrix equation: [ab] = (tXpX) 1 tXpY (g) With: 1 t1 15 X = 1 tp [P1 P1: t11 Xp = Pn Pn tn TA 71 = [1 TAIn The value of the derivative TAI 'at the time t is then given by the coefficient b The value of the heat exchange coefficient r varies according to the sign of the coefficient b 20 to take into account since this exchange coefficient is different when the constituent material of the internal zone Z / considered heats up or cools, this type of calculation can also be undertaken to correct the the temperature of the rim. The time period TINTD may be equivalent to the TINT period previously used for smoothing the temperature or be higher. In the case of the study that supported this description, the value of TINTD was set at 40 minutes. For example, for the tire size 40.00 R 57 XDR B4, the temperature of the materials located at the edge of crown reinforcement ply is obtained by the following law: 3034045 9, TNST 7, 7, (k) TNST - "-TAI TAI A1 1-" T - 1j TNSTO in which the temperature TAI of the internal air is a temperature corrected after smoothing and taking into account the delay effect, as was explained above, and where the Values of the coefficients were experimentally determined as follows: aTTANIsT = 1.78, 5 aTNST = -0.48, and TNSTO = -3. When the value of the temperature is increasing, the value of r is 300 minutes, and when the value of the temperature is decreasing, the test value of 720 minutes. FIG. 3 makes it possible to assess the accuracy of the resulting model, as well as the dispersion between the temperature values obtained using the estimation model subject of the invention and the values actually measured at the end. crown reinforcement plies of a tire located at the right front of a dumper-type machine. For certain internal zones Z / of the materials constituting the tire, it may be necessary to introduce additional corrections of the temperature of the gaseous fluid enclosed in the internal cavity of the tire. This is the case, for example, when an attempt is made to estimate the temperature at the center C of the tread, where the incidence of the internal pressure (P) and the load (Z) carried by the tire is not not secondary, or in the area of the bead B where the influence of the load (Z) also deserves to be taken into account. The pre-established law for estimating the temperature is then of the type: ## EQU1 ## Tzi Tzi Tz1 TAI aTi "(I) = -TAI P + az 'Z + Tm where TAI represents the value of the temperature of the internal air, T., the temperature of the rim The variable P represents the value of the pressure gaseous fluid, and Z represents the charge.These values can usefully also be weighted smoothing and / or taking into account a delay effect as explained above (d), ( e).
    [0010] Tzr Tzr Tzr Tzr a ap, az and Tm), are coefficients determined experimentally for the TAI TI type of tire considered. The value of the pressure P is estimated directly using the TPMS sensor used to measure the internal air temperature. The estimation of the load Z range is carried out using means also known such as a pressure sensor inserted in the means for controlling the hydraulic pressure of the suspension arms, or with the aid of a strain gauge installed on the chassis. The weight of the unladen vehicle and the load distribution on each of the tires can be evaluated separately by conventional weighing means upon initialization of the model serving as a basis for the method. Thus, the law making it possible to determine the temperature at the center C of the tread for the tire of the type 40.00 R 57 XDR B4 serving as a guide wire to this description is of the type: Tc Tc = aTTACI - TAI aTC .. Where TAI represents the internal air temperature after smoothing and integration of the retard effect, T. internal air pressure after smoothing and Z represents the load carried by the tire after smoothing, and wherein aTT Ac1 = 1.75; aTT jc = -0.48; apTc = 5, azTc = -0.4, and Tc0, = -19.8. When the value of the temperature is increasing, the test value of 300 minutes, and when the value of the temperature is decreasing, the test value of 720 minutes. It is easily understood that all these successive corrections have the object of minimizing the difference between the temperature resulting from the model and the actual temperature measured in the internal zone of a constituent material of the tire in order to reduce the number of non-detections or alerts wrongly. Also, it may be useful, from a statistical study, to adjust the values of the constants above to reduce the number of these false decisions and bring them within acceptable limits for the operator.
    [0011] The development of the method according to the invention and the determination of the constants of the model described above requires a preliminary experimental phase carried out using analysis means making it possible to access the actual values of temperature in the zones to be tested. monitor. It may therefore be useful to have a previously instrumented tire, so as to make follow-ups on a machine of the same type as those on which this type of tire is intended to roll. And the values resulting from this experimental plan can then be exploited for all tires of the same dimension. Once the physical model is established, and the laws for estimating the temperature in the internal areas of the tire constituent materials most sensitive to temperature rise are determined, it is possible to make software intended to be loaded into a computer processing unit and executed in real time. This processing unit can be installed in a remote control and monitoring station where are concentrated the means of monitoring the fleet of gear operating in a mine. This implies that these machines are equipped with means for transmitting the charging and pressure temperature data in real time to said computer processing unit using known means and protocols. The determination of the value of the internal temperature Tzi of a constituent material of the tire can be carried out directly by a central unit disposed on the civil engineering machine or can be performed in the central unit located in the control station. In which case, at each measurement, the temperature values TAI, TJ of pressure P and of load Z are sent from the civil engineering machine to the control station where the thermal stresses undergone by each of the tires of the engine are monitored. the fleet of machinery and where are issued the alerts or the instructions of rolling.
    [0012] The software can usefully be recorded on a medium such as a disk, a magnetic strip, a USB key or in the memory of a remote server so as to be loaded or downloaded in a central unit after agreement on the relative commercial transaction. to this transfer. The exploitation of the method thus makes it possible to have precise data concerning the condition of the tires and to decide in real time the actions to be taken in order not to exceed temperature thresholds T - limit Zli liable to cause irreparable degradation of the tires. , and optimize the operation of the fleet of vehicles on which these tires are mounted. These Tumiteri temperature thresholds are determined experimentally and depend on the nature of the materials constituting the inner zone Z11 considered. They can be communicated by the tire manufacturers. For the sake of convenience, we can also calculate an estimator E giving not the temperature of the internal area, but a magnitude, equivalent to a level of stress, and based on the thermal level. The shape of this indicator, for a given zone of a given tire, is of the type: E = Testimée Zli Tlimite ZIZI 100 Tambiante Tlimite Zli WHERE TestiméeZli represents the value of the temperature in the zone Zh, estimated according to the method indicated below. above, and where Tambiante represents the ambient temperature of the outside atmospheric air in the area of operation of the vehicle. If the estimated temperature is equal to the ambient temperature, the tire is at rest, the value of E is 0%. If the temperature is equal to the limit defined for the internal zone of the tire considered, 100% is displayed. In the case of the follow-up of a vehicle, the indicator E, '', having the level 3034045 12 maximum is then monitored. Thus, the proposed method makes it possible to precisely monitor the thermal stresses experienced by a given tire during operation, using known and inexpensive measuring means.
    权利要求:
    Claims (15)
    [0001]
    REVENDICATIONS1. A method for evaluating the thermal stresses associated with the use of a tire (1) mounted on a rim (6), characterized in that it comprises the steps in which: - using a sensor of temperature (71, 72) is measured at regular time intervals a temperature (TA /) of a gaseous fluid contained in an internal cavity (8) of the tire, and a temperature of the rim (Ti), and is transmitted this value to a computer processing unit containing encoded instructions, - by executing the coded instructions contained in the computer processing unit a temperature (7 '1) is estimated in at least one internal area (ZI, C, N, B) constituent materials of the tire using a pre-established law connecting this temperature (Tzi) to the temperature (TAI) of the gaseous fluid contained in the internal cavity (8) of the tire and to the temperature in a location of the rim (Ti). 15
    [0002]
    2. Method according to claim 1, wherein the pre-established law for estimating the temperature of said inner zone (T 1) of the constituent materials of the tire, which is a function of the temperature TA, of the gaseous fluid contained in the internal cavity of the tire and the temperature n at a location of the rim, is of the type: Tzt Tzt = aTAl TAI + aTTzt - Ti + Tz10 where, for a given internal area (ZI, C, N, B) of a given tire type, aTTAin, ar., T 10 are experimentally determined coefficients.
    [0003]
    3. A process according to claim 1 or claim 2, wherein the temperature (TAI) of the gaseous fluid contained in the internal cavity of the tire and used for estimating the temperature (7 '1) of an internal zone ( ZI, C, N, B) of a constituent material of the tire is a smoothed temperature (TA / 1 resulting from a weighted average of the temperatures of the gaseous fluid contained in the internal cavity (8) of the tire measured over a period of time given 25
    [0004]
    4. Process according to claim 3, in which the smoothed temperature is determined using a pre-established law of the type: TAI eluted (t) - Er-111 1/2 (TAit.Pi + ti) Er111. 112 (pi + Pt + i). (T1 + 1- tt) where TAIT represents the value of the temperature of the gaseous fluid contained in the internal cavity (8) of the tire measured at time t 'p, represents a coefficient of 3034045 14 Z ettiT), weighting (pi = 1- 1) and TINT represents a time interval during which at least two measurements of the temperature (TA,) of the gaseous fluid contained in the internal cavity (8) of the tire are made.
    [0005]
    5. Method according to one of claims 1 to 4, wherein the temperature (TA /) of the gaseous fluid contained in the internal cavity (8) of the tire used for estimating the temperature (ni) of an internal zone. (ZI, C, N, B) of the constituent material of the tire is readjusted (TAfretwd) according to an evaluation of the increase or decrease of the value of said temperature (TAI) over a given time interval, of in such a way as to take account of a delay in the evolution of the temperature of said gaseous fluid contained in the internal cavity of the tire with respect to the temperature (T ZI) of the internal zone (ZI, C, N, B) of the constituent material of the tire in question.
    [0006]
    6. A method according to claim 5 wherein, at a given time value (t), the temperature (TA / ,,, 'd) of the gaseous fluid contained in the internal cavity of the tire used for estimating the temperature. (Tz1) of the internal zone (ZI, C, N, B) of a constituent material of the tire is determined by a pre-established law of the type: TAIretard (t) = TAI (t) T-TA / r (T ) - (1- eAtIT) where TAI 'represents, at time t, the value of the derivative of TA / (t), and where, for a given internal area (ZI, C, N, B) of a given tire type, 1-represents a heat transfer period whose value is adjusted according to whether the value Tm (t) is increasing or decreasing, and At represents the time between two measurements.
    [0007]
    7. Method according to one of claims 1 to 6 wherein: - with the aid of a pressure sensor, is measured at regular intervals the value of a pressure (P) of the gaseous fluid contained therein of the internal cavity (8) of the tire, and, with the aid of a load sensor, the value of a load (Z) carried by the tire, - the estimate of the value of the temperature is corrected (Ta) of an inner zone (ZI, C, N, B) of a constituent material of the tire as a function of the measured values of the pressure (P) and the load (Z).
    [0008]
    8. The method of claim 7, wherein, at a given time value (t), the pre-established law for estimating the temperature of said inner zone (7 'z1) of the constituent materials of the tire, which is a function of the temperature TAI of the gaseous fluid contained in the internal cavity of the tire, the temperature n at a location 25 of the rim, the pressure P and the load Z, is of the type: 3034045 15 T TZ / Cent / TAI + a PTZ / - P + azzi - Z + Tzio where, for a given internal area (Z /, C, N, B) of a given tire type, arz / ar_zr, azrz /, Tz70 are experimentally determined coefficients . TAI, 1 "
    [0009]
    9. Method according to one of claims 1 to 8, wherein the internal temperature of the materials located in at least one of the areas of the tire (1) selected from one end of a working ply (N), a bead is estimated. (B), a tread (C). 5
    [0010]
    The method according to any one of claims 1 to 9, wherein at each time value (t) the measured temperature (TAI, 7,) pressure (P) and load (Z) values are transmitted to a remote operator.
    [0011]
    11. A method according to any one of claims 1 to 9, wherein said internal temperature (ni) of a constituent material of the tire is transmitted to a remote operator.
    [0012]
    12. A method according to any one of claims 1 to 11 wherein an alert is issued when said internal temperature (Tz1) of the constituent material of the tire exceeds a given threshold for a given period of time.
    [0013]
    13. Device for implementing the method according to one of claims 1 to 12 comprising: - data exchange means with sensors (71, 72) capable of acquiring temperature values (TAI, Ti) load (Z) and pressure (P) to be treated, - at least one computer processing unit, and - coded instructions for performing the steps of the method. 20
    [0014]
    14. Software comprising code elements programmed for the implementation of the method according to any one of claims 1 to 12 when said software is loaded into a computer processing unit and executed by said processing unit.
    [0015]
    15. Software according to claim 14 recorded on a readable medium on a computer processing unit. 25
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    同族专利:
    公开号 | 公开日
    US20180015793A1|2018-01-18|
    US10507697B2|2019-12-17|
    WO2016151226A1|2016-09-29|
    CL2017002333A1|2018-08-31|
    FR3034045B1|2017-04-28|
    BR112017019491B1|2021-01-19|
    BR112017019491A2|2018-05-15|
    CA2980666A1|2016-09-29|
    AU2016238669B2|2020-08-27|
    AU2016238669A1|2017-10-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3906399A1|1989-03-01|1990-09-20|Bosch Gmbh Robert|Tyre pressure monitoring arrangement|
    US7075421B1|2002-07-19|2006-07-11|Tuttle John R|Tire temperature and pressure monitoring sensors and systems|
    DE102004040756A1|2003-12-12|2005-08-11|Continental Teves Ag & Co. Ohg|Tire temperature compensating method, involves determining temperature compensated air pressure in tire from average temperature found from tire interior and rim temperatures, measured tire air pressure and reference temperature|
    WO2008113382A1|2007-03-16|2008-09-25|Nira Dynamics Ab|Tire pressure deviation detection for a vehicle tire|
    US6044313A|1997-11-26|2000-03-28|Caterpillar Inc.|Method and apparatus for monitoring ton-miles-per-hour for tires on a mobile machine|
    FR2831107B1|2001-10-18|2004-10-15|Michelin Soc Tech|METHOD FOR ESTIMATING THE AIR TEMPERATURE OF THE INTERNAL CAVITY OF A TIRE AND APPLICATION TO THE DETECTION OF AN ABNORMAL OPERATION OF A FLAT ROLLING SYSTEM|
    FR2898679B1|2006-03-16|2008-05-30|Michelin Soc Tech|METHOD FOR DETERMINING A CONSTRAINTS INDICATOR SUPPORTED BY A DUMPER TIRE|
    FR2907375B1|2006-10-20|2009-01-16|Michelin Soc Tech|METHOD FOR INDICATING THE AGING INDICATED BY A PNEUMATIC|US10692000B2|2017-03-20|2020-06-23|Sap Se|Training machine learning models|
    CA3073917A1|2017-10-26|2019-05-02|Compagnie Generale Des Etablissements Michelin|Method for evaluating the performances of a tyre during use|
    JP2019194542A|2018-05-02|2019-11-07|コニカミノルタ株式会社|Overload detection processing device, overload detection system, and program|
    法律状态:
    2016-03-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-09-30| PLSC| Publication of the preliminary search report|Effective date: 20160930 |
    2017-03-22| PLFP| Fee payment|Year of fee payment: 3 |
    2018-03-23| PLFP| Fee payment|Year of fee payment: 4 |
    2019-11-29| ST| Notification of lapse|Effective date: 20191106 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1552412A|FR3034045B1|2015-03-24|2015-03-24|METHOD FOR DETERMINING THE TEMPERATURE OF AN INTERNAL PART OF THE MATERIALS OF A TIRE|FR1552412A| FR3034045B1|2015-03-24|2015-03-24|METHOD FOR DETERMINING THE TEMPERATURE OF AN INTERNAL PART OF THE MATERIALS OF A TIRE|
    PCT/FR2016/050616| WO2016151226A1|2015-03-24|2016-03-21|Method for determining the temperature of an internal part of the materials of a tyre|
    BR112017019491-0A| BR112017019491B1|2015-03-24|2016-03-21|method of determining the temperature of an internal part of the materials of a tire|
    CA2980666A| CA2980666A1|2015-03-24|2016-03-21|Method for determining the temperature of an internal part of the materials of a tyre|
    US15/543,000| US10507697B2|2015-03-24|2016-03-21|Method for determining the temperature of an internal part of the materials of a tire|
    AU2016238669A| AU2016238669B2|2015-03-24|2016-03-21|Method for determining the temperature of an internal part of the materials of a tyre|
    CL2017002333A| CL2017002333A1|2015-03-24|2017-09-14|Procedure to determine the temperature of an internal part of the materials of a tire.|
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