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EP3688691A1 - Procédé de prédiction de l'usure et véhicule à moteur - Google Patents

Procédé de prédiction de l'usure et véhicule à moteur

Info

Publication number
EP3688691A1
EP3688691A1 EP18769307.2A EP18769307A EP3688691A1 EP 3688691 A1 EP3688691 A1 EP 3688691A1 EP 18769307 A EP18769307 A EP 18769307A EP 3688691 A1 EP3688691 A1 EP 3688691A1
Authority
EP
European Patent Office
Prior art keywords
information
component
motor vehicle
wear
computing device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18769307.2A
Other languages
German (de)
English (en)
Inventor
Andreas Schmidt
Benedikt Xander
Klaus Stoll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Audi AG
Original Assignee
Audi AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Audi AG filed Critical Audi AG
Publication of EP3688691A1 publication Critical patent/EP3688691A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/50—Control strategies for responding to system failures, e.g. for fault diagnosis, failsafe operation or limp mode
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W20/00—Control systems specially adapted for hybrid vehicles
    • B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
    • G06F17/141—Discrete Fourier transforms
    • G06F17/142—Fast Fourier transforms, e.g. using a Cooley-Tukey type algorithm
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/20—Administration of product repair or maintenance
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0808—Diagnosing performance data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L2012/40267—Bus for use in transportation systems
    • H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle

Definitions

  • the invention relates to a method for prediction of wear of a drive train of a motor vehicle and to a motor vehicle.
  • DE 10 2015 120 991 A1 shows a method and a device for wear estimation and maintenance planning for connected vehicle systems.
  • a processor receives and aggregates system wear-related data from a vehicle system usage event. Further, a comparison of the system wear related data with data collected from vehicles for which actual wear measurements were made to determine a projected system wear condition. If the projected state of wear exceeds an exchange limit, a system service may be recommended.
  • DE 10 2012 01 1 538 A1 describes a method and a system for the tele-diagnosis of vehicles, in which maintenance and / or repair-relevant data are transmitted from a vehicle to an external computing device. The computing device performs a telediagnosis based on the transmitted maintenance and / or repair-relevant data and determines maintenance and / or repair measures that can be displayed for a user.
  • DE 10 201 1 082 361 A1 discloses a method for monitoring vehicles of a motor vehicle fleet, wherein vehicle-related data and the geographical position of the motor vehicle are determined via a sensor system in a respective vehicle of the motor vehicle fleet. By means of the vehicle-related data, a number of maintenance parameters are determined, which describe the maintenance requirements of the respective vehicle. Via a data network, the maintenance parameters and the geographical position are transmitted to a fleet operator.
  • the invention is based on the object of specifying an improved method for prediction of wear of a drive train of a motor vehicle.
  • the invention provides that during operation of the motor vehicle, a computing device of the motor vehicle receives at least one operating information describing an operating state of a component of the drive train, which is recorded by at least one sensor of the motor vehicle and transmitted to the computing device, wherein the Operating information and / or comparison information generated based on the operating information is compared with a stored in the computing device reference information, wherein in dependence of this comparison, a wear of the component descriptive wear information is generated.
  • the advantage of the solution according to the invention lies in the fact that a wear determination based on actual operating data and on the basis of actual Operational states may occur and must not be assumed by operating state-independent parameters such as fixed intervals of years or mileage of the motor vehicle.
  • the operating information obtained during the operation of the motor vehicle and describing an operating state of a component of the drive train serves as the basis for a comparison with a reference information stored in the computing device.
  • the operating information can be compared directly with the reference information and / or comparison information generated on the basis of the operating information can be compared with the reference information.
  • a wear information describing a wear of the component is generated.
  • the wear information can indicate, for example, whether or how much the respective component has worn out.
  • wear states of various components of the drive train of the motor vehicle such as an engine, a clutch, a transmission, a cardan shaft, a propeller shaft, a Differenzialget ebes or other, carried out for the transmission of engine torque to the wheels components.
  • components of a drive train of a motor vehicle with internal combustion engine and components of a motor vehicle with hybrid drive or with pure electric drive can be evaluated with respect to their wear.
  • the reference information used for the comparison can for example be specified by a manufacturer of the motor vehicle and, for example, include the data to be expected during operation of a motor vehicle in a new state and / or in a running state from a respective component in a specific operating state. It is also possible that the reference information describes maximum permissible operating states and / or that they comprise limit values or maximum values that result in a specific period of time overall result in prevailing operating conditions.
  • a direct comparison of the operating information describing an operating state of a component of the drive train with the reference information stored in the arithmetic unit can be made, or comparative information can be generated on the basis of the operating information, which is subsequently used for the comparison with the reference information.
  • wear information describing wear of the component is finally generated.
  • the inventive method receives at least one operating information continuously for different times during operation and classified by the arithmetic unit, summed up as a function of classification and stored as load collective information in the arithmetic unit, the load collective information used as comparative information becomes.
  • the computing device which receives the operating information, can classify these, for example as a function of the strength of a load. Depending on this classification, the operating information can then be added up and stored as load collective information in the computing device.
  • the load collective information indicates which and / or how much load the component was previously exposed to during operation. In particular, it may indicate which and / or how much load the component has been exposed to in total since its installation in the motor vehicle.
  • This load collective information can then be used as comparison information generated using the operating information for comparison with the reference information. It is possible that, depending on the classification, a weighted accumulation of the operating information takes place as well as that, depending on the classification, a summation of the correspondingly classified operating information is performed individually for each class.
  • the different classes can describe different load ranges, with higher loads being For example, weighting up can be more weighty than low loading.
  • the classification and the summation can be carried out separately for each operating information or for each monitored component.
  • the load collective information is compared with the reference information, wherein as reference information a design collective information describing a maximum load of the component is used.
  • the design collective information may indicate which maximum load the component can withstand before such wear occurs, which requires replacement of the component.
  • the comparison of the load collective information with the design collective information describes the ratio of the current state of the component to a maximum load limit of the component.
  • the design collective information can take into account both the individual classes of separately accumulated load information and load collective information generated from jointly and weighted accumulated operating information.
  • a frequency spectrum of a component is determined as operating information and transmitted to the computing device, wherein a reference spectrum associated with the operation of the component is used as reference information.
  • the frequency spectrum may include, for example, frequencies radiated as sound during operation.
  • the frequency spectrum of a component is transmitted to the computing device and compared with a reference spectrum associated with the operation of the component.
  • the reference spectrum may include different frequency spectrums, which may each be assigned to different operating states of the component.
  • different operating states may include, for example, different speeds of the motor vehicle and / or take into account additional parameters, such as an engaged gear or a temperature of the component.
  • a comparison can then be made between the frequency spectrum determined as operating information and the reference spectrum assigned to the currently prevailing operating state.
  • the reference spectra stored in the computing device can in particular describe the frequencies emitted by the respective component in the respective operating state, which occur in a normal operating state, that is to say without wear of the component. If the comparison between the frequency spectrum and the reference spectrum results in the determination of a deviation between the frequency spectrum and the reference spectrum, this can be used to conclude a state of wear of the relevant component.
  • the frequency spectrum of the component it can be provided according to the invention that it is determined as comparison information from a sensor signal assigned to the component by Fourier transformation, in particular by Fast Fourier Transformation (FFT), wherein a comparison with the reference spectrum with respect to amplitude changes at discrete Frequencies take place.
  • the sensor signal can be generated, for example, by a sensor arranged on the component.
  • the measured sensor signal can by the Fourier transformation, in particular by a Fast Fourier Transformation, are translated into a frequency spectrum, which can then be compared with the reference spectrum.
  • a comparison can be made in particular with respect to amplitude change at discrete frequencies, since such amplitude change may, for example, indicate the change of a resonance frequency and / or the occurrence of further frequencies, for example harmonics, which are caused by wear of the component can have.
  • a change in the frequency spectrum can for example take place in that a bearing clearance of a movably stored component has increased or that a lubricant level has decreased, wherein in both cases a wear state of the component is present and can be detected by the method according to the invention.
  • a structure-borne sound signal and / or airborne sound signal measured by a sensor associated with the component is used as the sensor signal.
  • a microphone and / or a sensor attached to a housing of the component or to the component itself, for example an acceleration sensor can be used as the sensor.
  • the at least one operating information is transmitted to the computing device via a data bus.
  • This advantageously makes it possible to use as operating information information which is measured, for example, by different sensors and / or by different control devices in the motor vehicle during operation of the motor vehicle.
  • data which is determined by an engine control unit, a transmission control unit and / or by other individual components of the drive train associated with sensors.
  • the control devices or the sensors By connecting the control devices or the sensors to a data bus of the motor vehicle, for example a CAN bus, the control units determined by the control devices and / or the sensors can be used.
  • th information is transmitted as operating information to the computing device and used for wear prediction.
  • Operating information may include a plurality of these parameters, in particular a plurality of parameters that can be assigned to a single component.
  • the operating information may also include data describing a general operating condition of the motor vehicle such as the speed of the motor vehicle, an engaged gear or a prevailing in the environment of the motor vehicle weather such as humidity or temperature.
  • a rotational speed or a torque can be determined, for example, for a drive motor of the motor vehicle or also be determined on other components of the motor vehicle, such as a cardan shaft, a differential gear, a clutch or the like.
  • an oil pressure and / or an oil temperature of a drive motor and / or a transmission can be used as an operating information.
  • the respective operating information can be assigned to an operating state of the component and allow conclusions about the loads acting on the component in the operating state.
  • a high engine speed at a low outside temperature and an engine oil temperature which currently corresponds to the outside temperature, indicate a high load and a concomitant faster wear of the engine or an engine component
  • a low engine speed with engine oil heated to operating temperature and a moderate speed of the motor vehicle can represent a lower load state, which is associated with a corresponding less rapid expected wear of the engine or an engine component.
  • an increased wear state of a component writing information a corresponding indication to a display device of the motor vehicle can be transmitted and / or that a corresponding repair information of the computing device via a wireless communication link to an external kauseinrich- device is transmitted.
  • An increased wear state of a component can be determined, for example, by comparing current operating information with reference information and / or comparison information created by comparison based on operating information, which contains, for example, continuously accumulated operating information.
  • corresponding repair information is transmitted via a wireless communication link to an external data processing device, for example in a workshop.
  • an appointment is already reserved in the workshop and / or an order for a spare part for the worn component is already made in order to be able to design a workshop stay of the motor vehicle as short as possible.
  • the communication connection can be wireless or via a cable.
  • the Transmission of the operating information and / or the wear information is in the form of a report, which reflects the state or degree of wear of the individual components of the drive train of the motor vehicle.
  • the condition of the drive train of the motor vehicle can be assessed by a user, for example the driver of the motor vehicle or a mechanic.
  • additional information to be transmitted in addition, for example information about the expected repair costs and / or the spare parts required for the repair, working hours or the like.
  • a motor vehicle for a motor vehicle according to the invention, it is provided that it comprises at least one drive train with at least one component, at least one sensor and a computing device, wherein the computing device is configured to execute a method according to the invention.
  • Fig. 1 is a schematic side view of an inventive
  • FIG. 2 shows a flowchart of a first exemplary embodiment of a method according to the invention
  • FIG. 1 is a side view of a motor vehicle 1 according to the invention is shown.
  • the motor vehicle comprises a drive train 2, which consists of several components. The following are shown as components of the drive train 2: a drive motor 3, a transmission 4, a cardan shaft 5 and a differential gear 6 arranged on the rear axle.
  • the drive train 2 can of course comprise further components such as shafts, joints, couplings or the like.
  • the drive motor 3 may be, for example, an internal combustion engine which is coupled to the transmission 4 for driving the motor vehicle 1.
  • the drive motor 3 comprises a control device 7 and a sensor 8, wherein both the control device 7 and the sensor 8 are each designed to determine at least one operating state of the drive motor 8 descriptive operating information.
  • the transmission 4 comprises a control unit 9 and a sensor 10 and the differential gear 6, a control unit 1 first
  • the respective components associated control units 7, 9, 1 1 and the sensors 8, 10 are connected to a data bus 12 of the motor vehicle 1. Via the data bus 12, the operating information ascertained by the control devices 7, 9, 11 and by the sensors 8, 10 can be transmitted to a computing device 13 of the motor vehicle.
  • the computing device 13 may be embodied, for example, as a control unit and / or integrated into a control unit connected to the data bus 12.
  • the motor vehicle 1 further comprises a speed sensor 14 and a weather sensor which generates weather-describing weather information.
  • further sensors may be provided, which are likewise designed to transmit operating information to the arithmetic unit 13 via the data bus 12.
  • the arithmetic unit 13 can receive the operating information assigned to it and assigned to the individual components of the drive train, and compare the operating information and / or comparison information generated on the basis of the operating information with a reference information stored in the arithmetic unit. Depending on this comparison, the computing device 13 generates a wear of the respective component. writing wear information. Depending on the wear information, the computing device can control a display device 16 of the vehicle to display an indication and / or use a communication connection 17 to transmit repair information to an external data processing device and / or send the at least one operating information and / or the wear information to a external display device to transfer.
  • operating information for example, a torque determined by the engine control unit 7 and / or a rotational speed, an oil temperature measured by the sensor 8, a torque determined by the transmission control unit or a rotational speed of the transmission, an oil temperature in the transmission measured by the sensor 10, and / or one of Control unit 1 1 of the Differenzialget ebes measured torque and / or a speed of the differential gear can be used.
  • operating information may also include further information, for example a speed of the motor vehicle determined by the speed sensor 14 and / or weather information, such as an ambient temperature or an air humidity, which is determined by the weather sensor 15 and describes weathering.
  • Fig. 2 shows a block diagram of an embodiment of a method according to the invention. The steps describe:
  • step S6 Display and / or transmission of wear information
  • the method starts in step S1 with the beginning of an operation of the motor vehicle.
  • the method can be started, for example, as soon as an ignition of the motor vehicle is actuated or, for example, in a vehicle with electric operation, as soon as a movement of the motor vehicle takes place.
  • step S2 an operating information determined by a control device 7, 9, 11 and / or a sensor 8, 10 is transmitted from the respective control device and / or sensor determining the operating information to the computing device 13 via the data bus 12.
  • step S3 the operating information transmitted to the computing device 13 is classified, summed up as a function of the classification and stored as a load collective.
  • a weighting of the operating information depending on the classification when summing up can be used.
  • a high load operating state such as operating information describing high speed or high torque, may be weighted more heavily than low speed and low torque, respectively.
  • the load collective information is stored in the computing device 13.
  • step S4 the comparison between the load collective information stored in the computing device 13 and the reference information stored in the computing device 13 takes place.
  • the reference information may, for example, have been given by the manufacturer of the motor vehicle and describes the maximum load which the component in question can withstand before such wear occurs, which necessitates replacement of the component.
  • wear information is generated in step S5.
  • This wear information indicates, for example, to what extent the total load of the component described so far by the load collective information is still of the maximum possible, stored as reference information total burden is removed. If there is no wear, a new operating information is transmitted to the control unit, classified and added to the already stored load collective information and stored as new load collective information.
  • step S5 If it is determined in step S5 that there is a wear of a component or that a rapid wear of a component is to be expected, so that an exchange of the component in the near future is required, so in step S6 a corresponding note on the display device 16 to a Driver of the motor vehicle 1 are issued. Additionally or alternatively, a transmission of a corresponding repair information via the communication link 17 to a data processing device, for example in a workshop, take place. Also in this case, the method is then continued in step S2 with the transmission of new operating information to the control unit.
  • a termination of the method can for example take place in that the operating state of the vehicle ends, for example by switching off an ignition and / or by locking a central locking or the like.
  • FIG. 3 shows a block diagram of a further embodiment of a method according to the invention. The steps are indicated as follows:
  • the method starts in step S7 under the conditions already mentioned in relation to step S1.
  • step S8 the transmission of a frequency spectrum as operating information to the computing device.
  • the frequency spectrum can be one of one of the respective components. te assigned sensor measured structure-borne sound signal and / or airborne sound signal derived frequency spectrum.
  • the determination of the frequency spectrum can be effected by Fourier transformation of the sensor signal obtained, wherein, for example, a fast Fourier transformation (FFT) can be used.
  • FFT fast Fourier transformation
  • step S9 the frequency spectrum transmitted to the computing device 13 is compared with a reference spectrum stored as reference information in the computing device 13 for the currently prevailing operating state of the motor vehicle. For example, in step S9, a comparison may be made with respect to amplitude variations at discrete frequencies. This comparison makes it possible to detect an acute or suddenly occurring wear of a component, since, for example, the wear of a moving component of the drive train can result in a changed sound radiation and thus a changed frequency spectrum. For example, such an imbalance in a bearing or an insufficient level of a lubricant can be detected.
  • step S10 depending on the comparison made in step S9, wear information is generated which indicates, for example, whether there is acute wear or whether the recorded frequency spectrum shows a sufficient matching accuracy with the reference spectrum stored in the computing device 13, so that it is concluded can be that no wear of the component concerned is present.
  • wear information is output via the display device 16 of the motor vehicle and / or the transmission of corresponding repair information to an external data processing device via the communication link 17 and / or to an external display device.
  • step S8 the transmission of a new frequency spectrum to the computing device takes place.
  • the method can run as long as the motor vehicle 1 is still in operation. At the end of the Operation of the motor vehicle 1 is also terminated according to the inventive method.
  • the method described in relation to FIG. 2 and the method described in relation to FIG. 3 may run simultaneously, so that as operating information both at least one variable describing a load of the component and a frequency spectrum which the component being measured is transmitted. It is also possible that the computing device 13 performs one or both of these methods for a part or for all components of the drive train.
  • the wear information stored in the computing device 13 and assigned to the respective components is transmitted via the communication connection 17 to an external device of a user, such as a driver of the motor vehicle or a mechanic, where it can be viewed by the user.
  • a user such as a driver of the motor vehicle or a mechanic
  • the user can thus make an overview of the state of wear of the individual components of the drive train 2 of the motor vehicle 1, without the need for a visual inspection of the respective components is required.

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Abstract

L'invention concerne un procédé de prédiction de l'usure d'une chaîne cinématique (2) d'un véhicule à moteur (1), un dispositif de calcul (13) du véhicule à moteur (1) recevant, lors du fonctionnement du véhicule à moteur (1), au moins une information de fonctionnement décrivant un état de fonctionnement d'un composant de la chaîne cinématique (2), qui est enregistrée par au moins un capteur (8, 10, 14, 15) du véhicule à moteur (1) et est transmise au dispositif de calcul (13), l'information de fonctionnement et/ou une information de comparaison générée sur la base de l'information de fonctionnement étant comparées à une information de référence enregistrée dans le dispositif de calcul (13), une information d'usure décrivant une usure du composant étant générée en fonction de cette comparaison.
EP18769307.2A 2017-09-29 2018-09-05 Procédé de prédiction de l'usure et véhicule à moteur Withdrawn EP3688691A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017217404.8A DE102017217404A1 (de) 2017-09-29 2017-09-29 Verfahren zur Verschleißprädiktion und Kraftfahrzeug
PCT/EP2018/073840 WO2019063252A1 (fr) 2017-09-29 2018-09-05 Procédé de prédiction de l'usure et véhicule à moteur

Publications (1)

Publication Number Publication Date
EP3688691A1 true EP3688691A1 (fr) 2020-08-05

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EP18769307.2A Withdrawn EP3688691A1 (fr) 2017-09-29 2018-09-05 Procédé de prédiction de l'usure et véhicule à moteur

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US (1) US20200262415A1 (fr)
EP (1) EP3688691A1 (fr)
CN (1) CN111164621A (fr)
DE (1) DE102017217404A1 (fr)
WO (1) WO2019063252A1 (fr)

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US11358657B2 (en) 2019-10-30 2022-06-14 Deere & Company Work vehicle transmission prognostics system and method
CN115223356A (zh) * 2021-04-22 2022-10-21 广州汽车集团股份有限公司 一种获取汽车载荷谱的方法及系统
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US20200262415A1 (en) 2020-08-20

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