DE102018216318B3 - Method for substituting a wear material of a motor vehicle and substitution device for a motor vehicle - Google Patents

Abstract

The invention relates to a method for substituting a wear material (20) of a motor vehicle (14) in order to improve operational safety of the motor vehicle (14) and to make motor vehicle operation as comfortable as possible for a user. For this purpose, the wear material (20) is first classified either in a first or in a second category, depending on whether the wear material (20) is to be substituted outside or during a predetermined maintenance stay of the motor vehicle (14) in a workshop. A wear value of the wear material (20) is then determined, and the wear value is compared by a computing device (26) with a predetermined limit value. A request condition then checks whether the wear value exceeds the limit value and the wear material (20) is classified in the first category and finally, only if the requirement condition is met, a new wear material is requested by a communication device (28).

Description

The invention relates to a method for substituting a wear material of a motor vehicle and a substitution device for the motor vehicle.

Wear materials, such as wiper blades of a motor vehicle, wear out over time, in particular depending on a service life and environmental influences. Progressive wear increasingly affects the functionality of the wiper blades, which in particular results in ineffective wiping behavior and increased operating noise. In order to determine a correct time for an exchange, that is to say a substitution of the wiper blades, it is advantageous to know a current state of the wiper blades.

These are in the DE 10 2009 046 132 A1 describes a method and a device for determining a state of a wiper blade in a windshield wiper driven by an electric motor. The movement of the windshield wiper is detected on the basis of at least one operating parameter of the electric motor and analyzed with regard to irregular, jerky movement patterns. The condition of the wiper blade is then assessed based on this analysis.

Furthermore, from the DE 196 20 320 A1 discloses a method and a device for determining the state of a wiper blade of a motor vehicle. It is provided here that at least one influencing variable that affects the condition of the wiper blade is recorded as a measure of wear and is compared with at least one stored comparison variable and that a message is issued when a predetermined constellation of the captured influencing variable and comparison variable is reached.

In addition, from the DE 10 2012 210 116 A1 discloses a method and a device for recognizing directed structures on a window of a vehicle. The method comprises a step of performing an evaluation of pixels of an image of the pane arranged along an evaluation path, a course of the evaluation path being dependent on an expected orientation of the directed structures on the pane. The method further comprises a step of recognizing a directional structure based on the evaluation.

This results in the disadvantage that the wear materials, such as the wiper blades, are only replaced during maintenance work on the motor vehicle in a workshop, despite the fact that the functionality is impaired. The maintenance stays are often specified by a manufacturer of the motor vehicle and are usually scheduled at most once in two years or after 20,000 kilometers. In contrast, wear materials such as wiper blades should be replaced every six months to ensure that they function properly. Thus, the motor vehicle is often operated for a long time, although the functionality of the wear materials is impaired, so that on the one hand operational safety of the motor vehicle is not adequately guaranteed and on the other hand driving comfort during motor vehicle operation is restricted for a user of the motor vehicle.

From the DE 10 2017 217 404 A1 a method for wear prediction is known in connection with the detection and replacement of wear of drive train components.

From the DE 200 15 605 U1 a maintenance system for a vehicle is also known. Functions of the vehicle are monitored by an information system of the vehicle, and if a malfunction occurs depending on its maintenance relevance, at least one maintenance-supporting measure, such as an exchange of a defective component, is initiated.

After all, is out of DE 10 2010 039 879 A1 discloses a method in which a motor vehicle transmits information relating to a component to a control center. The control center can then use the information obtained over time to determine a point in time at which the component is to be replaced.

The invention is based on the object of developing the method mentioned at the outset and the substitution device in such a way that operational safety is improved and motor vehicle operation becomes more comfortable for the user of the motor vehicle.

The object is solved by the subject matter of the independent claims. Advantageous developments of the invention are disclosed by the dependent claims, the following description and by the figures.

The invention provides a method for substituting a wear material for a motor vehicle. For this purpose, the method comprises, in step a), classifying the wear material into one of two categories, the wear material being classified into the first category of the two categories if the wear material closes in a workshop outside of a predetermined maintenance period for the motor vehicle is substituted, or is classified into the second category of the two categories if the wear material is to be substituted during the maintenance stay, in a step b) determining a wear value of the wear material by a sensor device, in a step c) comparing the wear value with a predetermined limit value by a computing device, in a step d) a check in a request condition whether the wear value exceeds the limit value according to step c) and whether the wear material according to step a) is classified in the first category and in a step e) only for the case that the request condition in step d) is fulfilled: requesting a substitute wear material for the wear material by a communication device.

In other words, the requirement for substitution, that is to say in particular for replacing, refilling, renewing or replacing the wear material, can take place if the functionality of the wear material is impaired and the wear material is classified in the first category. The wear material can, in particular, be a material or a component of the motor vehicle that is worn or worn out over time by use. The wear material can be realized, for example, as a tire, wiper blade, wash water liquid, antifreeze, cooling water, brake pads, engine oil, brake discs or the like. In particular, the wear material can therefore be a component of the motor vehicle, which is generally to be substituted more frequently than only during the maintenance stay, ie an inspection, of the motor vehicle specified by the manufacturer of the motor vehicle.

This has the advantage that the substitute wear material for the wear material previously installed is requested before the wear material previously used is worn out in such a way that the functionality of the wear material impairs driving comfort and / or operational safety. For example, a new wiper blade for a windshield wiper of the motor vehicle can be requested before streaks form on a windshield of the motor vehicle due to the wear of a previously installed wiper blade when the windshield wiper is used, in particular when it is raining. The streaks hinder a clear view of the user on a roadway, so that the user may move into an uncomfortable position while driving in order to continue to get a clear view of the roadway. In the worst case, the view for the user can even be restricted such that the user does not recognize a dangerous situation on the road in time. In another exemplary situation, new tires can also be requested, for example, before the tread depth of the tires is so small that safe driving with the motor vehicle on the road is not sufficiently guaranteed. Overall, the timely requesting of the substitution wear material makes motor vehicle operation not only more convenient for the user, but also safer.

Furthermore, the method described has the advantage that requesting the substitute wear material is less time-consuming for the user of the motor vehicle. The method allows the substitution wear material for the wear material, that is to say a suitable substitution wear material, for the motor vehicle of the user to be requested automatically, that is to say without the user himself needing to become active. Time-consuming research for the substitute wear material that is compatible with the motor vehicle is unnecessary. Automatic requesting is particularly advantageous for users with a large number of motor vehicles, such as families with more than one motor vehicle or companies with a fleet, because the substitute wear material is automatically requested for each of the large number of motor vehicles without the user having to check each individual motor vehicle needs.

The wear material can particularly preferably be classified into the first or second category by the user of the motor vehicle. The user can also be understood as an operator and in particular can be a driver, a vehicle owner, a dealer, or a manufacturer of the motor vehicle. The wear value of the wear material can also be understood as the degree of wear / consumption / wear of the wear material. For example, the wear value can be a fill level of the engine oil or the tread depth of the tire of the motor vehicle. Thus, the limit value, which can preferably be specified by the manufacturer of the motor vehicle, can be a maximum degree of wear or consumption that is just still permissible to operate the motor vehicle. The request, for example ordering or ordering the substitute wear material can be carried out particularly preferably via an online shop, that is to say a virtual shopping center, which is preferably provided by the manufacturer of the motor vehicle. In particular, the substitution wear material can be a so-called original wear material that is provided by the manufacturer. The request can particularly preferably be made depending on a country in which the motor vehicle is registered. This means that only those substitution wear parts are requested that are in the respective Country are also approved. Furthermore, a weather forecast can also be determined before requesting, so that a substitute wear material can be requested depending on the weather forecast. Accordingly, for example, especially at persistently low temperatures, an anti-freeze can be requested for the motor vehicle that is adapted to the low temperatures.

Furthermore, in step f), the invention provides for the user to select at least two substitution wear materials for the wear material, the user specifying one of the at least two substitution wear materials as the substitution wear material, which is then requested in accordance with step e).

In other words, in the event that at least two substitution wear materials are designed to substitute the wear material, the user can be shown the at least two substitution wear materials via the output device, so that the user can select at least one of the two substitution wear materials.

This has the advantage that the user can decide on a design of the substitution wear material with regard to a quality and / or cost of the substitution wear material.

As an alternative or in addition, the invention provides in step g) that only in the event that the requirement condition in step d) is met and before carrying out step e) is a determination of user parameters associated with the user taking place.

The user parameters can include, in particular, contact details, such as an address and / or telephone number of the user, and payment information. A chassis number of the motor vehicle can also be stored particularly preferably in the user parameters. The substitution wear material can be clearly assigned to a motor vehicle via the chassis number. The chassis number can preferably already be stored by the manufacturer of the motor vehicle in the storage device which is assigned to the motor vehicle. Accordingly, the user can also store his address, telephone number and payment information in the storage device which is assigned to the motor vehicle.

One embodiment of the method provides in step h) that only in the event that the requirement condition in step d) is met and before execution of step e) is the wear material classified into one of two subcategories which are assigned to the first category , takes place, the wear material is classified into the first subcategory of the two subcategories if the user of the motor vehicle is willing to substitute the wear material itself, or else the wear material is classified into the second subcategory of the two subcategories.

In other words, the wear material can be assigned to either the first or the second subcategory depending on whether the user is willing to substitute the wear material himself or not. This has the advantage that the user can decide for himself whether he would like to either save costs by replacing the wear material himself or save time by having the wear material replaced, for example, by the workshop outside of the maintenance period.

The classification into the first or the second category or subcategory can, for example, first be carried out by the manufacturer and / or the dealer of the motor vehicle. Alternatively or subsequently, the user can also classify the wear material into the respective category or subcategory according to his or her wishes, in particular via a multimedia interface (MMI) of the motor vehicle, that is to say a multimedia interface, which can be designed, for example, as a screen with an input function in the motor vehicle interior.

A further embodiment provides that in step i) only in the event that the requirement condition in step d) is fulfilled and before execution of step e), a status of the wear material depending on the wear value is output to the user via an output device and waiting for approval by the user to request the substitute wear material.

In other words, the user can be informed as soon as the wear value exceeds the limit value and the wear material has to be substituted to ensure operational safety and comfortable driving. Furthermore, the user can decide for himself whether the replacement wear material should be requested immediately or at a later date. The output device can preferably be implemented as an MMI or as a mobile end device of the user that can be coupled to the motor vehicle.

A further embodiment provides in a step j) that only in the event that the The requirement condition in step d) is met and a determination of a wear material identifier that is assigned to the wear material takes place before execution before step e).

This means that a wear material identifier such as an article number of the wear material can be determined, by means of which the wear material can be clearly identified.

This results in the advantage that the wear material identifier clearly shows which wear material is to be substituted from a large number of wear materials which the motor vehicle usually comprises. The wear material identifier is preferably already stored in a storage device which is assigned to the motor vehicle and can be called up from the storage device at any time.

A further embodiment provides in step k) that the substitution wear material is sent to the user depending on the user parameters only in the event that the wear material is assigned to the first subcategory after step h).

In other words, the substitute wear material can be sent to the user himself if the user is ready to substitute the wear material himself. For this purpose, the user parameters that were previously stored in the storage device can be evaluated.

A further embodiment provides in step I) for the user to substitute the wear material of the motor vehicle for the substitute wear material.

This results in the advantage of a cost saving for the user, since the user himself replaces the wear material and does not have to pay a workshop for the substitution of the wear material, for example.

A further embodiment provides in a step m) that only in the event that the wear material is classified in the second subcategory in step h), the substitution wear material is sent to a workshop of the user who is ready, the wear material for the user to substitute, depending on the user parameters.

This means that the user can store an address of the workshop in the storage device that is assigned to the motor vehicle, for example instead of his own address, so that the substitution wear material can be sent directly to this workshop.

This has the advantage that a maintenance-related downtime of the motor vehicle is reduced for the user. The workshop can inform the user as soon as the substitute wear material has arrived. The user can then take the motor vehicle to the workshop so that the substitute wear material is replaced. The motor vehicle is thus less long in the workshop than when the user brings the motor vehicle into the workshop, it is first checked which wear material is to be substituted and then the substitution wear material is requested and finally replaced.

A further embodiment provides in step n) for the workshop to substitute the wear material of the motor vehicle for the substitute wear material.

This results in the advantage of a time saving for the substitution of the wear material for the user, since the user does not have to make the change himself, but can order the substitution of the wear material.

In a particularly preferred embodiment, the invention also relates to a method for substituting a wear material of a motor vehicle, comprising in a step o) placing the wear material in one of two categories, the wear material being classified in the first category of the two categories, the wear material outside one predetermined maintenance stay of the motor vehicle is to be substituted in a workshop, or is classified into the second category of the two categories if the wear material is to be substituted during the maintenance stay, in step p) a determination of a substitution time and in step q) a check in a requirement condition, whether the wear material according to step o) is classified in the first category and the substitution time according to step p) has been reached, and in a step r) only in the event that the requirement condition in step q ) is fulfilled, a substitution wear material for the wear material is requested by a communication device.

In other words, a subscription, that is to say a regular request for the substitution wear material, can be implemented at the specified substitution time.

The invention also relates to a substitution device for a motor vehicle, which is designed to carry out the method according to the invention for substituting a wear material of the motor vehicle. For this purpose, the substitution device have a processor device and a storage medium with a program code that can be executed by the processor device. When the program code is executed, the processor device can control further components of the substitution device in such a way that the substitution wear material is requested for the wear material.

The further components of the substitution device can in particular comprise an output device for outputting query parameters and a detection device for detecting an input from the user.

The output device can be designed as an MMI in the motor vehicle interior, so that the query parameters are displayed on the MMI for the user. For the user, the query parameters can represent in which of the two categories the wear material is to be classified. By entering, the user can then choose whether the wear material should be classified either in the first or in the second category.

Furthermore, the substitution device can also have a sensor device for determining the wear value of the wear material, as well as a computing device for comparing the wear value with the predetermined limit value and checking in a request condition whether the wear value exceeds the limit value and the wear material is classified in the first category. Finally, the substitution device can also have a communication device for requesting the substitution wear material for the wear material.

The substitution device particularly preferably represents a motor vehicle component, so that the processor device can be implemented, for example, as a motor vehicle processor device.

In another embodiment, the substitution device can also have a connecting device as a further component. The connection device enables the motor vehicle to be coupled to a mobile terminal, so that the substitution device represents a system comprising the motor vehicle and the mobile terminal. It can be provided that the output device and / or the detection device and / or the computing device and / or the communication device of the substitution device are formed in the mobile terminal.

The invention also includes further developments of the substitution device according to the invention which have features as have already been described in connection with the further developments of the method according to the invention. For this reason, the corresponding developments of the substitution device according to the invention are not described again here.

• 1 eine schematische Darstellung von Verfahrensschritten einer vorteilhaften Ausführungsform der Erfindung, und
• 2 eine schematische Darstellung einer Substitutionsvorrichtung, die ausgebildet ist eine vorteilhafte Ausführungsform des Verfahrens durchzuführen.

Exemplary embodiments of the invention are described below. This shows:

• 1 is a schematic representation of process steps of an advantageous embodiment of the invention, and
• 2 a schematic representation of a substitution device which is designed to carry out an advantageous embodiment of the method.

The exemplary embodiments explained below are preferred embodiments of the invention. In the exemplary embodiments, the described components of the embodiments each represent individual features of the invention that are to be considered independently of one another and that further develop the invention independently of one another. Therefore, the disclosure is intended to include combinations of the features of the embodiments other than those shown. Furthermore, the described embodiments can also be supplemented by further features of the invention that have already been described.

The 1 shows individual process steps of an advantageous embodiment of the method according to the invention for substituting a wear material of a motor vehicle 14 , The wear material is in this embodiment as a wiper blade 20 a wiper of the motor vehicle 14 educated. Alternatively, however, it is conceivable that the wear material, for example a brake lining of a brake of the motor vehicle 14 , Engine oil or a tire of the motor vehicle 14 represents.

The process will start with a step S started, the wiper blade 20 either in a first step 2 a first category or in a sixth step 12 be assigned to a second category. The wiper blade 20 assigned to the first category if the wiper blade 20 before one from a manufacturer of the motor vehicle 14 specified inspection, i.e. outside of a maintenance stay in a workshop, is to be replaced, i.e. replaced. In contrast, the wiper blade 20 assigned to the second category if the wiper blade 20 to be substituted during the specified inspection.

The manufacturer usually recommends the wiper blade 20 at least every six months, during an inspection often only after two years or 20,000 kilometers traveled. Thus, the wiper blade 20 after the start step S according to the first step 2 preferably assigned to the first category. The manufacturer particularly preferably takes the assignment of the wiper blade 20 in the first category.

In a second step 4 can now be a wear value of the wiper blade 20 for example by a sensor device 24 be determined. The wear value can be a usage-dependent wear of the wiper blade 20 be understood. As a sensor device 24 For example, a camera device can be used, which is designed to create streaks due to wear of the wiper blade during use on a window of the motor vehicle 14 can recognize. Alternatively, the sensor device 24 also be designed as a microphone device which is set up to record noise from the windshield wiper, in particular rattling, during a journey. The rattling can arise, for example, from the fact that a material from which the wiper blade of the windshield wiper is made is dissolved over time, for example due to weather conditions, so that a smooth-running coating of the wiper blade, for example made of graphite or polyethylene terephthalate (PET), is removed and thus different and high friction states arise between the wiper blade and the window. Chattering can also result from the age-related deformation of a wiper lip on the wiper blade, for example if the wiper system, i.e. the windscreen wiper, is not operated for a long period of time and due to aging, especially in strong sunlight, the wiper lip is deformed in one direction. The angle of attack to the windshield can become so steep that the wiper lip is lifted off locally and rattling occurs.

Once the wear value has been determined, a third step can be carried out 6 the wear value can be compared with a predetermined limit value. If, for example, the streaks on the disc are recorded to determine the wear value, the limit value can represent a maximum percentage area of the disc that is occupied by the streaks. On the other hand, if, for example, the noise of the windshield wiper is recorded while driving, the limit value can represent a maximum level that the noise of the windshield wiper may at most reach.

Then in a fourth step 8th in a requirement condition, checks whether the wiper blade is classified in the first category and whether the wear value exceeds the limit value. In the event that the requirement condition is not met, the fourth step 8th to the starting step S be returned so that the procedure can be repeated. If, on the other hand, the requirement condition is met, a fifth step can 10 a substitution wear material for the wear material, i.e. a new wiper blade, by a communication device 28 is requested. By requesting, in addition to a wear material identifier, such as an article number of the wiper blade 20 , also user parameters, such as a chassis number of the motor vehicle 14 and contact and payment data of the user in a storage device that the motor vehicle 14 is assigned. Based on the wear material identification and the chassis number, the new wiper blade can then be selected accordingly so that it is guaranteed to the motor vehicle 14 is adjusted. The address and account data of the user can then be used to send the new wiper blade directly to the user, for example, so that the user can replace the previously installed wiper blade with the new wiper blade.

It can be particularly preferred before performing the fifth step 10 a further step can be provided, which is not shown in the figure. In this further step, the user can, for example, on the basis of the chassis number of the motor vehicle 14 Several new wiper blades are proposed, the requirements for replacing the previously installed wiper blade 20 meet, whereupon the user of one of the proposed new wiper blades as a new wiper blade for his motor vehicle 14 can choose.

After the fifth step 10 can the in 1 shown embodiment of the method finally with a final step e be ended. Alternatively, after the start step S the wiper blade in a sixth step 12 For example, classified in the second category, the embodiment of the method can immediately begin with the final step e be ended.

The described embodiment of the method according to 1 can particularly preferably from a system from a motor vehicle 14 and a mobile terminal can be carried out, the motor vehicle 14 can be coupled with the mobile device. The user can thus follow the request for the new wiper blade and, in particular, intervene himself via an application on the mobile terminal, for example from home or, for example, during an autonomous drive.

2 shows a schematic representation of the motor vehicle 14 with a substitution device 13 having components that are designed for the substitution of a wear material of the motor vehicle 14 to request a substitute wear material. Components of the substitution device 13 belong to a storage medium 16 , a processor device 18 , a detection device 23 , a sensor device 24 , a computing device 26 and a communication device 28 , The wear material of the motor vehicle 14 is like in the embodiment too 1 as a wiper blade 20 a wiper. The wiper blade 20 serves to clean a pane 22 of the motor vehicle 14 so that the user of the motor vehicle 14 has an unobstructed view of a road, especially while driving.

As mentioned earlier, the wiper blade is using 20 with the duration of use and over time, for example due to the weather and / or other environmental influences, so that the wiper blade functions 20 is restricted. In order to ensure driving comfort and operational safety, a wiper blade should therefore be replaced more often, that is to say substituted, than only during one by a manufacturer of the motor vehicle 14 predetermined maintenance stay in a workshop. For example, the manufacturer of the motor vehicle can already do this 14 the wiper blade 20 assign to a first of two categories that determine that the wiper blade 20 is to be substituted outside of the maintenance stay.

For the substitution of the wiper blade 20 includes the storage medium 16 in the 2 a program code which, when executed by the processor device 18 requesting a substitute wear material, here a new wiper blade. The processor device can 18 depending on the program code, the detection device 23 , the sensor device 24 , the computing device 26 and the communication device 28 drive.

Through the detection device 23 For this purpose, an input of a user can first be recorded, with the user entering the wiper blade 20 for example divided into a first of two subcategories of the first category, since the user is ready to use the wiper blade 20 exchange yourself. The input can be, for example, via a multimedia interface (MMI) to which the detection device 23 assigned.

Now during the operation of the motor vehicle 14 as long as a wear value of the wiper blade 20 through the sensor device 24 determined and by the computing device 26 be compared with a predetermined limit value until the wear value exceeds the limit value. If the wear value exceeds the limit value, the functionality of the wiper blade can 20 can no longer be adequately guaranteed and the wiper blade 20 should be replaced promptly.

The processor device can be used to request the new wiper blade 18 finally the communication facility 28 drive. By controlling the communication device 28 with a server device 30 be coupled. The communication device 28 can then next to an article number of the wiper blade 20 also a user parameter, such as a chassis number of the motor vehicle 14 and an address of the user to the server device 30 transfer. Based on the chassis number, the server device 30 by comparing with entries in a database 32 that with the server device 30 coupled, determine the vehicle type and all matching wear materials. With the item number, the substitute wear material, i.e. the new wiper blade, can then be made from all suitable wear materials 20 for the motor vehicle 14 be determined. By transmitting the address, the new wiper blade can be sent directly to the user, so that the user can use the wiper blade 20 can exchange with the new wiper blade after receipt.

The server device can be particularly preferred 30 from the manufacturer of the motor vehicle 14 are provided and used to operate an online shop, i.e. a virtual shopping center, of the manufacturer. As a result, only original substitution wear materials, which are produced at least on behalf of the manufacturer, are made available to the user for the substitution.

Overall, the invention shows an automated order, that is, the requesting of a wearing part such as a wiper blade 20 suitable for the motor vehicle 14 ,

Claims (9)

A method for substituting a wear material (20) of a motor vehicle (14), comprising the following steps: a) classifying the wear material (20) into one of two categories, the wear material (20) being classified into the first category of the two categories if the Wear material (20) is to be substituted outside of a predetermined maintenance stay of the motor vehicle (14) in a workshop, or is classified in the second category of the two categories if the wear material (20) is to be substituted during the maintenance stay, b) determining a wear value of the Wear material (20) by a sensor device (24), c) comparing the wear value with a predetermined limit value by a computing device (26), d) Checking in a requirement condition whether the wear value exceeds the limit value according to step c) and whether the wear material (20) is classified in the first category according to step a), and e) only in the event that the requirement condition in step d) is met is: Requesting a substitution wear material for the wear material (20) by a communication device (28), characterized by the following steps: f) outputting to the user to select at least two substitution wear materials for the wear material (20), the user being one of the at least two substitution wear materials as the substitution wear material, which is then requested according to step e) and / or g) only in the event that the request condition in step d) is met and before executing step e): determining user parameters that are assigned to the user. Procedure according to Claim 1 , characterized by a step: h) only in the event that the requirement condition in step d) is met and before execution of step e): classification of the wear material (20) into one of two subcategories which are assigned to the first category, whereby the wear material (20) is classified in the first subcategory of the two subcategories if a user of the motor vehicle (14) is willing to substitute the wear material (20) itself, or else the wear material (20) is classified in the second subcategory of the two subcategories becomes. Method according to one of the preceding claims, characterized by a step: i) only in the event that the requirement condition in step d) is fulfilled and before execution of step e): outputting a state of the wear material as a function of the wear value via an output device the user, and awaiting approval by the user to request the substitute wear material. Method according to one of the preceding claims, characterized by a step: j) only in the event that the requirement condition in step d) is fulfilled and before execution of step e): determining a wear material identifier which is assigned to the wear material (20). Procedure according to Claim 2 , characterized by a step: k) only in the event that the wear material after step h) is classified in the first subcategory: sending the substitution wear material to the user depending on the user parameters. Procedure according to Claim 5 , characterized by a step: I) substituting the wear material (20) of the motor vehicle (14) for the substitution wear material by the user. Procedure according to Claim 2 , characterized by a step: m) only in the event that the wear material is classified in step h) the second subcategory: sending the substitution wear material to the user's workshop, which is ready to substitute the wear material (20) for the user, in Dependence on the user parameters. Procedure according to Claim 7 , characterized by a step: n) substituting the wear material (20) of the motor vehicle (14) for the substitute wear material by the workshop. Substitution device (13) for a motor vehicle (14), which is designed, a method for substituting a wear material (20) of the motor vehicle (14) according to one of the Claims 1 to 8th perform.

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