JP5371548B2 - Replacement tire proposal system - Google Patents

Description

  The present invention relates to a replacement tire proposal system that proposes a replacement tire according to a vehicle type, and more particularly, to a replacement tire proposal system that can propose a replacement tire that meets the potential needs of a user.

  Conventionally, systems for proposing replacement tires for vehicles are known (Patent Documents 1 and 2). In Patent Document 1, a user inputs tire purchase conditions regarding a tire to be purchased, and introduces tires that match the tire purchase conditions (paragraphs [0045] to [0049] of Patent Document 1). When a plurality of tires are introduced, further detailed comparison (grip strength, riding comfort, etc.) of these tires is possible (see paragraphs [0051] to [0054] of FIGS. 5 and 6 in Patent Document 1).

  In Patent Document 2, the user himself / herself sets the tire, the traveling road surface, the mounting conditions, and the evaluation parameters for which the user wants to provide information ([0052] of Patent Document 2). The evaluation parameters here include riding comfort, steering stability, friction performance, and the like ([0049] of Patent Document 2, FIG. 16).

JP 2003-345967 A JP 2004-219173 A

  As described above, in Patent Document 1, when a user tries to obtain more detailed information when a plurality of tires are introduced, the user himself / herself needs to select a question for that purpose. In other words, the user himself / herself must be aware of the need for replacement tires. Similarly, in Patent Document 2, it is necessary for the user himself to select an evaluation parameter. For this reason, in Patent Documents 1 and 2, if the user himself / herself does not recognize the importance of tire performance (such as riding comfort and straight running stability), sufficient information cannot be provided to the user.

  The present invention has been made in consideration of such problems, and provides a replacement tire proposal system that can determine a user's potential needs and select replacement tires that meet the needs. For the purpose.

A replacement tire proposal system according to the present invention proposes a replacement tire according to a vehicle type, and the replacement tire proposal system includes a tire performance database in which performance data relating to a plurality of types of tires is accumulated, A comfort database in which the potential comfort needs determination items for determining the potential needs for comfort during driving of the vehicle and the strength of the potential needs for comfort are stored in association with each other, and the replacement tire An operational performance database that stores the operational performance latent needs determination items for determining the potential needs of the operational performance and the strength of the potential needs of the operational performance in association with each other, and accumulates in the tire performance database The obtained performance data includes the tire size and the compatible vehicle type of each of the plurality of types of tires and the plurality of types of tires. The, respectively and a rating of the comfort assessment and the operational performance of each of the TIRE for each of the plurality of types of tires is judged on the basis of the result of measurement in a state of being attached to the TIRE, Strength of potential needs of comfort corresponding to the comfort potential needs determination item selected according to the user, and the operation performance corresponding to the operation performance potential needs determination item selected according to the user And determining the strength of the potential needs of the determined comfort strength of the needs and the strength of potential needs of the operation performance, and the comfort accumulated in the tire performance database. based on the evaluation of sexual evaluation and the operation performance of elected replacement tires from a plurality of types of tires conform to the vehicle type and the tire size of the user, tie for the exchange And outputs the information.

  According to the present invention, the strength of the potential needs for comfort determined based on the comfort potential needs determination item and the strength of the potential needs for operation performance determined based on the operation performance potential needs determination item. Use this to select a replacement tire and output information about the replacement tire. Therefore, it is possible to determine a user's potential needs regarding comfort and operation performance, and to select and propose a replacement tire that matches this.

  The evaluation of comfort and operation performance as performance data stored in the tire performance database for use in selecting and proposing replacement tires is based on the results of measurements with each tire mounted on a compatible vehicle. is there. Therefore, selection and proposal of replacement tires can be performed more finely.

  The comfort may be, for example, quietness or riding comfort in the passenger compartment. When the comfort is the quietness, the comfort database includes at least one of an annual mileage, a vehicle usage frequency, a vehicle usage purpose, and whether or not a highway is used daily, and the quietness database. When the strength of potential needs is accumulated in association with each other and the comfort is the riding comfort, the comfort database includes a seat considering the riding comfort, an annual mileage, the presence or absence of a roof carrier or a roof box, At least one of the presence / absence of a trunk box or a rear carrier and the strength of the potential needs of the riding comfort may be accumulated in association with each other. This makes it possible to estimate the required performance of the tire including the potential needs for quietness and riding comfort in the passenger compartment from the user's running conditions, and to appropriately select and propose a replacement tire. .

  The operation performance can be, for example, straight running stability or steering response. In this case, the operation performance database may store at least one of a driver attribute and vehicle equipment in association with the strength of potential needs for the operation performance. This makes it possible to estimate the required performance of the tire including potential needs for the operation performance of the vehicle from the user's travel conditions, and to appropriately select and propose a replacement tire.

The tire performance database stores the comfort evaluation and the operation performance evaluation by scoring and accumulating the evaluation based on the result of measurement with each of the plurality of types of tires attached to the compatible vehicle type, and the user Strength of the potential needs of comfort corresponding to the comfort potential needs determination item according to the user, and strength of potential needs of the operation performance corresponding to the operation performance potential needs determination item according to the user The above-mentioned comfort evaluation accumulated in the tire performance database may correspond to the operation performance evaluation.

The replacement tire proposing system according to the present invention proposes a replacement tire according to a vehicle type, and the replacement tire proposing system is measured in a state where a plurality of types of tires are mounted on a compatible vehicle type. A tire performance database that accumulates performance data for each tire corresponding to a compatible vehicle type, a potential needs determination item for determining potential needs regarding the performance of the plurality of types of tires, and the strength of the potential needs. A plurality of types of tires that match a user's vehicle type and tire size, and that correspond to the latent needs determination item selected according to the user. Determining the strength of the potential needs, and determining the strength of the potential needs and the tire performance data. Based on said performance data stored in the over scan, elected replacement tires of a plurality of types of tires that are the extracted, and outputs the information of the replacement tire.

  According to the present invention, the replacement tire is selected using the strength of the potential needs related to the tire performance determined based on the latent needs determination item, and information on the replacement tire is output. Therefore, it is possible to determine a user's potential needs related to tire performance, and to select and propose a replacement tire that matches this.

  According to the present invention, the strength of the potential needs for comfort determined based on the comfort potential needs determination item and the strength of the potential needs for operation performance determined based on the operation performance potential needs determination item. Use this to select a replacement tire and output information about the replacement tire. Therefore, it is possible to determine a user's potential needs regarding comfort and operation performance, and to select and propose a replacement tire that matches this.

  The evaluation of comfort and operation performance as performance data stored in the tire performance database for use in selecting and proposing replacement tires is based on the results of measurements with each tire mounted on a compatible vehicle. is there. Therefore, selection and proposal of replacement tires can be performed more finely.

1 is a diagram illustrating a schematic configuration of a replacement tire proposing system according to an embodiment of the present invention. It is a figure which shows simply an example of the compatible tire information database in the said embodiment. It is a figure which shows simply an example of the tire performance database in the said embodiment. 4 is a flowchart for proposing a replacement tire in the embodiment. It is a table for judging the strength of the quiet need. It is a table for judging the strength of riding comfort potential needs. It is a table for judging a relative accident rate. It is an evaluation table for judging the intensity | strength of the primary (temporary) latent needs regarding operation performance. It is explanatory drawing which shows a mode that the tire for a replacement is narrowed down.

  FIG. 1 is a diagram showing a schematic configuration of a replacement tire proposing system 10 (hereinafter also referred to as “system 10”) according to an embodiment of the present invention.

  The system 10 is also referred to as a dealer terminal 12 (hereinafter also referred to as “terminal 12”) installed at a plurality of vehicle dealers and a replacement tire selection server 14 (hereinafter referred to as “server 14”) installed at the management center. ). In the present embodiment, each terminal 12 and the server 14 can communicate via the communication network 16.

  Each terminal 12 includes a communication device 20, an input device 22 including a keyboard and a mouse, an output device 24 including a display device, an arithmetic device 26, and a storage device 28. The storage device 28 stores a program for proposing replacement tires (replacement tire proposing program), and the arithmetic device 26 activates and executes the program according to the operation of the input device 22. Further, when the input device 22 is operated and predetermined information (details will be described later) is input during execution of the program, the arithmetic device 26 exchanges with the server 14 via the communication device 20 and the communication network 16. Request information about tires (recommended tires).

  The server 14 includes a communication device 30, an input device 32, an output device 34, a calculation device 36, a storage device 38, a compatible tire information database 40 (hereinafter also referred to as “compatible tire information DB 40”), and tire performance. A database 42 (hereinafter also referred to as “tire performance DB 42”), a user information database 44 (hereinafter also referred to as “user information DB 44”), and a user vehicle information database 46 (hereinafter also referred to as “user vehicle information DB 46”). , A comfort database 48 (hereinafter also referred to as “comfort DB 48”) and an operation performance database 50 (hereinafter also referred to as “operation performance DB 50”).

  As shown in FIG. 2, the compatible tire information DB 40 stores information on tires (compatible tires) according to the vehicle type and tire size. A suitable tire is selected in advance by an administrator of the server 14 or the like.

As shown in FIG. 3, the tire performance DB 42 stores information related to the performance of the tire mounted on the compatible vehicle type for each tire manufacturer and model. The data (tire performance data) stored in the tire performance DB 42 includes tire size, straight running stability, handling response, quietness in the vehicle interior (each general road and highway), ride comfort and price.

  The tire size includes a tire width, an oblateness ratio, a rim diameter, and the like (in FIG. 3, it is simplified). Each of the straight running stability, handling response, quietness in the passenger compartment, and ride comfort is scored in a 10-step feeling evaluation when each tire is actually mounted on the vehicle, and is evaluated according to the scoring. (3 is the best).

  The user information DB 44 is information about the user. For example, name, sex, date of birth (age), family structure, purpose of use of the vehicle, frequency of use of the vehicle, time zone for driving the vehicle (daytime / nighttime), ride Includes seats that emphasize comfort (driver's seat, passenger seat, rear seat), and whether or not the expressway is used on a daily basis.

  The user vehicle information DB 46 is vehicle information for each user. For example, vehicle type, tire specifications, equipment specifications, cumulative travel distance, annual travel distance, presence of a roof carrier or roof box, presence of a trunk box, presence of a rear carrier including. Equipment specifications include, for example, navigation devices, mobile phones (hands-free), compact disc (CD) players, CD changers, small accessories around the driver's seat, drink holders, ashtrays, dark smoke films on the rear window glass, and rear seats There is the presence or absence of dark smoke film on the left and right window glass. Further, the annual travel distance can be, for example, a past year performance or a plan for the next year assumed by the user.

  The comfort DB 48 stores the potential comfort needs determination items for determining the potential needs for comfort during driving of the vehicle and the strength of the potential needs for comfort in association (details). Will be described later.) The comfort here includes, for example, quietness and ride comfort in the passenger compartment.

  The operation performance DB 50 stores the operation performance latent need determination items for determining the potential needs of the operation performance during driving of the vehicle in association with the strength of the potential needs of the operation performance (details). Will be described later.) The operation performance here includes, for example, straight running stability and steering response.

  Upon receiving a request from the terminal 12 via the communication device 30, the computing device 36 of the server 14 selects a replacement tire (recommended tire) in response to the request and transmits information on the replacement tire to the terminal 12. To do.

  FIG. 4 shows a flowchart for proposing a replacement tire in the replacement tire proposing system 10 of the present embodiment.

  In step S <b> 1, the terminal 12 receives input of the vehicle type and tire size via the input device 22. The vehicle type and tire size may be input using a character input via a keyboard or a pull-down menu. Alternatively, it may be read from the user vehicle information DB 46 of the server 14. The input vehicle type and tire size are transmitted from the terminal 12 to the server 14. The server 14 selects a compatible tire as a primary candidate that matches the received vehicle type and tire size from the compatible tire information DB 40.

  In step S <b> 2, the system 10 determines a potential need for quietness (hereinafter also referred to as “silent potential demand”). Specifically, the terminal 12 receives an input of a silence potential need determination item for determining a silence potential need via the input device 22. In the present embodiment, the quiet potential needs determination item includes the purpose and frequency of use of the vehicle, the annual travel distance, and the presence or absence of daily use of the expressway. The input of the quietness latent needs determination item may be a character input via a keyboard or an input using a pull-down menu. Alternatively, it may be read from the user information DB of the server 14. The entered quiet potential need determination item is transmitted from the terminal 12 to the server 14. The server 14 determines the strength of the silence potential needs based on the received silence potential needs determination item. In this embodiment, three levels of “Large”, “Medium”, and “Small” are set as the strength of latent quiet potential needs, but only two levels of “Large” and “Small”, or four or more levels. It is good.

  FIG. 5 shows a table 60 for determining the strength of the quiet potential needs. The table 60 is stored in the comfort DB 48 of the server 14. As shown in FIG. 5, the computing device 36 of the server 14 first specifies the vehicle travel conditions (purpose of use) and the use frequency. There are “urban area”, “city area to suburb”, “family car”, and “business vehicle” as options for vehicle driving conditions. As usage frequency options, “2 days to 3 days / week” and “5 days / week + drive: weekend” corresponding to “city” and “commuting: 5 days” corresponding to “city to suburb” / Week "and" commuting: 5 days / week + homecoming, etc .: weekend "," family car "corresponding to" 7 days / week + travel, homecoming, etc .: weekend "and" business car "corresponding to" long " Distance business: 5 days / week ". If there is no matching option, select the closest option.

  The annual mileage is divided into three stages: “less than 5000 km”, “more than 5000 km and less than 10,000 km” and “more than 10,000 km”, and “medium / low speed” (no daily use of expressway) and “high speed” respectively. (There is daily use of highways).

  By selecting an option as described above, it is determined whether the strength of the quiet latent needs is “large”, “medium”, or “small”.

  Returning to FIG. 4, in step S <b> 3, the system 10 determines the strength of potential needs related to riding comfort (hereinafter also referred to as “riding comfort potential needs”). Specifically, the terminal 12 receives input of a ride comfort potential need determination item for determining a ride comfort potential need via the input device 22. In the present embodiment, the ride comfort potential need determination items include a seating position (a seat that emphasizes ride comfort), the presence or absence of a roof carrier or a roof box, the presence or absence of a trunk box, the presence or absence of a rear carrier, and the annual travel distance. Consists of. The input of the ride comfort potential need determination item may be a character input via a keyboard or an input using a pull-down menu. Or you may read from user information DB44 of server 14, and user vehicle information DB46. The input riding comfort potential need determination item is transmitted from the terminal 12 to the server 14. The server 14 determines the strength of the riding comfort potential needs based on the received riding comfort potential needs determination item. In the present embodiment, three levels of “Large”, “Medium”, and “Small” are set as the strength of potential ride comfort needs, but only two levels of “Large” and “Small”, or four or more It is good.

  FIG. 6 shows a table 70 for determining the strength of the riding comfort potential needs. The table 70 is stored in the comfort DB 48 of the server 14. As shown in FIG. 6, the computing device 36 of the server 14 first specifies a seating position (a seat that places importance on riding comfort). The seating position options include “driver's seat”, “passenger seat” and “rear seat” (including the second and third rows). Also, “no roof carrier and roof box” and “no roof carrier or roof box” as options corresponding to “driver's seat”, and “no roof carrier and roof box” and “roof” as options corresponding to “passenger seat”. "Roof carrier and roof box", "No roof carrier and roof box", "No trunk box and rear carrier", "Roof carrier or roof box attached" and "Trunk box or rear carrier" “Installation”.

  There are three options for the annual mileage: “less than 5000 km”, “5000 km or more and less than 10,000 km” and “10000 km or more”.

  By selecting an option as described above, it is determined whether the strength of potential ride comfort needs is “large”, “medium”, or “small”.

  Returning to FIG. 4, in step S <b> 4, the system 10 determines the strength of potential needs (hereinafter also referred to as “operation performance potential needs”) related to operation performance (for example, straight running stability and handling response). Specifically, the terminal 12 receives input of an operation performance potential need determination item for determining operation performance potential needs via the input device 22. In the present embodiment, the operation performance latent need determination item includes the gender and age of the driver, the main time zone (daytime / nighttime) for driving the vehicle, and the equipment specifications. The input of the operation performance latent need determination item may be a character input via a keyboard or an input using a pull-down menu. Or you may read from user information DB44 of server 14, and user vehicle information DB46. The input operation performance need determination item is transmitted from the terminal 12 to the server 14.

  The server 14 determines the relative accident rate Rinc (estimated value) based on the gender and age of the driver and the main time zone (daytime / nighttime) of driving the vehicle among the received operation performance need determination items. .

  Relative accident rate Rinc in the present embodiment is a ratio (estimated value) indicating the likelihood of an accident based on an accident rate of 1.0 when a man aged 25 to 34 is traveling at night. For example, the determination is made based on the table 80 shown in FIG. 7 is stored in the operation performance DB 50. The accident rate itself means the probability of causing a fatal injury when 10,000 vehicles travel 10,000 km.

  In addition, the server 14 uses the equipment specifications among the received operation performance potential needs determination items, and uses the equipment specifications to indicate primary (temporary) potential needs (hereinafter also referred to as “operation performance potential latent needs”). Determine the strength of the.

  FIG. 8 shows an evaluation table 90 for determining the strength of temporary operational performance potential needs. The evaluation table 90 is stored in the operation performance DB 50. As shown in FIG. 8, in this embodiment, potential needs are assigned for each equipment specification. Then, the total number of equipment installed in the user's vehicle is taken as the strength of the temporary potential for operation performance. For example, if the user's vehicle is equipped with a navigation device (2 points), a mobile phone (hands-free) (2 points), a CD player body (1 point), and a drink holder (1 point), the operational performance provisional potential The strength of needs is 6 points. The strength of the needs here is the handling of the potential needs for straight-ahead stability in consideration of inadvertent steering during side-view driving and the delay in avoidance behavior of the driver in side-by-side driving. Reflects potential needs for response.

  Then, the server 14 determines the final potential needs (safety needs) related to the operation performance (hereinafter also referred to as “operation performance potential needs”) based on the calculated relative accident rate Rinc and the strength of the temporary operation performance potential needs. Determine strength. Specifically, the server 14 divides the strength of potential operation performance needs into three levels of “large”, “medium”, and “small” according to the score. For example, “large” is 40.0 or more, “medium” is 8.1 to 39.9, and “small” is 8.0 or less. Then, the server 14 calculates the product of the calculated relative accident rate Rinc and the strength of the operational potential potential needs as the strength of the operational performance potential needs (safety needs) (the strength of the operational performance potential needs = the relative accident). Rate x strength of operational potential provisional potential needs).

  For example, when the relative accident rate Rinc is 0.8 and the strength of the temporary operation performance potential needs is 20, the strength of the potential operation performance needs is 16.0 (= 0.8 × 20), which is “medium”. It is determined.

  Returning to FIG. 4, in step S <b> 5, the system 10 selects a replacement tire (recommended tire) based on the strengths of the quiet potential needs, the ride comfort potential needs, and the operation performance potential needs determined in steps S <b> 2 to S <b> 4. And output. Specifically, for each potential need, the server 14 selects a recommended tire having a rating of “3” for the potential needs, and recommends a rating of “2” or more for the potential needs for “medium”. Select a tire, and for “Small”, select a recommended tire with an evaluation regarding the potential needs of “1” or more (for evaluation, see FIG. 3). Thereby, the server 14 selects a recommended tire that satisfies each potential need, and transmits information related to the recommended tire to the terminal 12. The terminal 12 that has received the information regarding the selected recommended tire outputs the information to the output device 24.

  FIG. 9 is an explanatory diagram showing how the replacement tire (recommended tire) is narrowed down. In FIG. 9, first, tires X101, X201, X301, X401, and X501 are selected according to the vehicle type and tire size. Next, the tires are narrowed down to tires X101, X201, and X401 in accordance with potential operational performance needs (straight running stability = large, handling response = large). Finally, the tires X201 and X401 are narrowed down according to potential comfort needs (silence: highway = large, general road = large, ride quality = medium).

  In step S6, the system 10 accepts a tire to order from one or more selected recommended tires. In the example of FIG. 9, one of the tires X201 and X401 is ordered.

  As described above, according to the present embodiment, the strength of the quiet potential needs determined based on the quiet potential needs determination item, the strength of the ride potential needs determined based on the ride potential needs determination item, A replacement tire is selected using the strength of operation performance potential needs determined based on the operation performance potential needs determination item, and information on the replacement tire is output. Therefore, it is possible to determine a user's potential needs regarding quietness, riding comfort, and operation performance, and to select and propose a replacement tire that matches this.

  In addition, the quietness, riding comfort, and operational performance (straight running stability and handling response) as performance data accumulated in the tire performance DB 42 for use in selecting and proposing replacement tires are evaluated for each tire. This is based on the result of mounting and measurement. Therefore, selection and proposal of replacement tires can be performed more finely.

  In the present embodiment, the comfort DB 48 accumulates the annual travel distance, the frequency of use of the vehicle, the purpose of use of the vehicle, the presence / absence of daily use of the expressway, and the strength of quiet potential needs. In addition, the comfort DB 48 stores the seats that take into account the ride comfort, the annual travel distance, the presence or absence of the roof carrier or the roof box, the presence or absence of the trunk box or the back carrier, and the strength of the potential ride comfort. This makes it possible to estimate the required performance of the tire including the potential needs for quietness and riding comfort in the passenger compartment from the user's running conditions, and to appropriately select and propose a replacement tire. .

  In the present embodiment, the operation performance DB 50 stores the driver attributes and vehicle equipment in association with the potential needs for operation performance (straight running stability and handling response). This makes it possible to estimate the required performance of the tire including potential needs for the operation performance of the vehicle (tire) from the user's running conditions, and to appropriately select and propose a replacement tire.

  It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted based on the content described in this specification. For example, the following configuration can be adopted.

  In the above embodiment, the terminal 12 of the replacement tire proposing system 10 is installed in a vehicle dealer. However, the present invention is not limited to this, and may be installed in other places such as a tire dealer or a vehicle maintenance factory.

  In the above embodiment, the configuration of the system 10 is divided into the terminal 12 and the server 14, but the function of the server 14 may be given to the terminal 12. That is, the recommended tire can be selected only by the terminal 12.

  In the above embodiment, both the potential needs regarding comfort (silence and ride comfort) and the potential needs regarding operation performance (straight running stability and steering response) are determined, but only one of them may be used. Moreover, regarding comfort, although the potential needs regarding quietness and the potential needs regarding riding comfort were both determined, only one of them may be used. Alternatively, other potential needs for comfort (eg, vibration reduction) may be determined. Furthermore, regarding the operation performance, the potential needs regarding both the straight running stability and the steering response are determined, but only one of them may be used. Alternatively, other potential needs for operational performance (eg, grip strength, drainage, wear performance) may be determined.

10 ... Replacement tire proposal system 12 ... Dealer terminal 14 ... Replacement tire selection server 40 ... Applicable tire information DB
42 ... Tire performance DB 44 ... User information DB
46 ... User vehicle information DB 48 ... Comfort DB
50 ... Operation performance DB

Claims (5)

A replacement tire proposal system that proposes replacement tires according to vehicle types,
The replacement tire proposal system includes:
A tire performance database that accumulates performance data related to multiple types of tires,
A comfort database in which the potential comfort needs determination items for determining the potential needs of comfort during driving of the vehicle and the strength of the potential needs of comfort are stored in association with each other;
An operational performance database that stores the operational performance potential needs determination items for determining the potential needs of the operational performance related to the replacement tire and the strength of the potential needs of the operational performance in association with each other, and
The performance data accumulated in the tire performance database is
A tire size and a compatible vehicle type of each of the plurality of types of tires;
The comfort evaluation and the operation performance of each of the plurality of types of tires determined for each of the plurality of types of tires determined based on the result of measurement in a state where each of the plurality of types of tires is mounted on the compatible vehicle type . and a evaluation,
Strength of potential needs of comfort corresponding to the comfort potential needs determination item selected according to the user, and the operation performance corresponding to the operation performance potential needs determination item selected according to the user To determine the strength of the potential needs of
Based on the determined strength of potential needs of the comfort and the strength of potential needs of the operation performance, and the evaluation of the comfort and the evaluation of the operation performance accumulated in the tire performance database. A replacement tire proposal system that selects a replacement tire from a plurality of types of tires that match the vehicle type and tire size of the user and outputs information about the replacement tire. In the replacement tire proposal system according to claim 1,
The comfort is a ride Ri comfort,
Before Symbol comfort database considers comfort seat, Le Fukyaria or absence of the roof box, at least one of the presence or absence of the trunk box or the back carrier, the storage in association with the intensity of the potential needs of the riding comfort A replacement tire proposing system characterized by In the replacement tire proposal system according to claim 1 or 2,
The operation performance is straight running stability or steering response,
The operation performance database, replacement tire proposed system, wherein the equipment of vehicles, to accumulate in association with intensity of potential needs of the operational performance. In the replacement tire proposal system according to any one of claims 1 to 3,
The tire performance database stores the evaluation of the comfort and the evaluation of the operation performance by scoring based on the result of measurement with each of the plurality of types of tires attached to the compatible vehicle type,
Strength of potential needs of comfort corresponding to the comfort potential needs determination item according to the user, and potential needs of the operation performance corresponding to the operation performance potential needs determination item according to the user The tire suggestion system for replacement is characterized in that the strength of the tire is scored to correspond to the evaluation of the comfort and the evaluation of the operation performance accumulated in the tire performance database. A replacement tire proposal system that proposes replacement tires according to vehicle types,
The replacement tire proposal system includes:
A tire performance database that accumulates performance data for each tire corresponding to the compatible vehicle type measured in a state where a plurality of types of tires are mounted on the compatible vehicle type ;
A latent needs database for storing potential needs determination items for determining potential needs related to the performance of the plurality of types of tires and the strengths of the potential needs;
A plurality of types of tires that match the user's vehicle type and tire size are extracted from the tire performance database,
Determining the strength of the potential needs corresponding to the potential needs determination item selected according to the user;
Based on the determined strength of the potential needs and the performance data accumulated in the tire performance database, a replacement tire is selected from the plurality of types of extracted tires, and the replacement tire is selected. The tire suggestion system for replacement, characterized in that

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