JP2008002907A - Component replacement/repair determination support system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To give materials for determination appropriately under a situation where parts are replaced. <P>SOLUTION: The component replacement/repair determination support system comprises a predetermined components information acquisition means for acquiring information on predetermined components possessed by a vehicle, an alternative components information creation means for creating information on alternative components which can substitute for the predetermined components, and a vehicle performance calculation means for calculating vehicle performance on the basis of input information. The system provides a user with information on the basis of a comparison between present vehicle performance calculated by the vehicle performance calculation means when the information on the predetermined components acquired by the predetermined components information acquisition means is input and vehicle performance after substitution calculated by the vehicle performance calculation means when the information on the alternative components created by the alternative components information creation means in place of at least part of the information on the predetermined components acquired by the predetermined components information acquisition means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a parts replacement / repair determination support system that supports determination regarding parts replacement and repair.

  Conventionally, by calculating the stress acting on each part from the running history of the vehicle and storing the accumulated stress for each part, it is possible to view the degree of deterioration, residual value, repair / replacement time, etc. of each part Has been disclosed (for example, see Patent Document 1).

Further, an invention is disclosed regarding a system in which a user arbitrarily combines vehicle bodies and parts within a selectable range, and displays the appearance and performance of a completed vehicle as a simulation result (see, for example, Patent Document 2).
Japanese Patent Laid-Open No. 2005-50022 JP 2004-287976 A

  The invention described in the above-mentioned Patent Document 1 is mainly intended to appropriately grasp the current state of each part without disassembling the vehicle, and the vehicle performance is improved when the deteriorated part is replaced. There is no consideration of how much it changes.

  In addition, the invention described in the above-mentioned Patent Document 2 is mainly aimed at deriving the appearance and performance of a vehicle that appears as a result of arbitrarily selecting a vehicle body or a part when a user orders a new vehicle. No consideration is given to the state of the parts of the traveling vehicle.

  Therefore, in these inventions, there are cases where it is not possible to provide appropriate judgment materials when a user judges whether or not to replace or repair a part.

  The present invention is intended to solve such a problem, and in the scene where a user determines whether or not to replace or repair a vehicle part, a component replacement / repair determination support capable of providing appropriate judgment materials. The main purpose is to provide a system.

  In order to achieve the above object, a first aspect of the present invention includes a predetermined part information acquisition unit that acquires information about a predetermined part included in the vehicle, and a substitute part information creation that acquires information about an alternative part that can be replaced with the predetermined part. And vehicle performance calculating means for calculating vehicle performance based on the inputted information, and when the information regarding the predetermined part acquired by the predetermined part information acquiring means is input, the vehicle performance calculating means calculates the vehicle performance. Vehicle performance calculation means when the information on the substitute parts acquired by the substitute parts information creation means is input instead of at least a part of the information on the current vehicle performance and the predetermined parts acquired by the predetermined parts information acquisition means. A component replacement repair decision support system that provides information to the user based on the comparison with the vehicle performance after replacement calculated by It is.

  Here, the “information about the predetermined part” is information necessary for the vehicle performance calculation means to calculate the vehicle performance, and includes, for example, the material and structure of the predetermined part, the degree of deterioration (wear), and the like. In addition, the “substitute part” may be, for example, a new article of the same type, another product, or a product obtained by repairing a predetermined part. The “information regarding the substitute part” is information necessary for the vehicle performance calculation means to calculate the vehicle performance, similarly to the “information about the predetermined part”. For example, if the “substitute part” is a new article of the same type, the information on the part related to the substitute part is corrected to almost zero in the “information on the specified part”, and the “substitute part” is another If the product is a product, the material, structure, etc. are different from the “information on the specified part”. If the “substitute part” is a repair of the specified part, the “information on the specified part” The information is corrected so that the degree of deterioration of the portion related to the substitute part is improved to some extent as compared with the degree of deterioration of the predetermined part.

  According to this first aspect of the present invention, information is provided to the user on the basis of the comparison of vehicle performance before and after replacing a predetermined component provided in the vehicle with a replacement component. That is, the display or the like is performed by comparing the vehicle performance before and after replacing or repairing the parts. Thereby, in the scene where a user judges whether it replaces or repairs parts of vehicles, it can give a suitable judgment material. Here, the content of information provision to the user includes, for example, the degree to which the vehicle performance after replacement is improved from the current vehicle performance. In this case, when the degree to which the vehicle performance after replacement is improved from the current vehicle performance is a predetermined level or more, the user may be prompted to replace the part.

  Further, in the first aspect of the present invention, there is provided a part information storage unit that stores information related to a vehicle part, and a replacement part specifying unit that specifies a replacement part from the vehicle parts stored in the part information storage unit. The substitute part information creating means may be a means for acquiring information on the substitute part designated by the substitute part designation means from the part information storage means. In this case, the substitute part designation unit is a unit that designates the substitute part based on the degree of deterioration of the predetermined part acquired by the predetermined part information acquisition unit, for example.

  In the first aspect of the present invention, the substitute part designation unit may be a unit that designates a substitute part based on a user input operation.

  In the first aspect of the present invention, a plurality of combinations of parts that can be substitute parts are specified from the information stored in the part information storage means, and a plurality of calculations are performed for each of the specified combinations of the plurality of parts. It is also possible to select an optimum substitute part based on the vehicle performance after the replacement of the above and provide information on the selected optimum substitute part. In this case, the part information storage means stores information related to the cost required for replacement or repair of the vehicle parts, and selects and provides the optimum alternative part based on the cost required for replacement or repair of the vehicle parts. Then, it is suitable.

  Moreover, the 1st aspect of this invention is implement | achieved by the vehicle-mounted apparatus and information processing center which can mutually communicate, for example. In this case, when the vehicle performance calculation means is installed in the information processing center, it is preferable in terms of processing load and the like.

  According to a second aspect of the present invention, there is provided a deterioration degree acquisition means for acquiring a deterioration degree of a predetermined part provided in the vehicle, and a vehicle performance calculation means for calculating a vehicle performance based on the input degree of deterioration of the part, The current vehicle performance calculated by the vehicle performance calculation means when the deterioration degree of the predetermined part acquired by the deterioration degree acquisition means is input, and the vehicle performance when the input information is corrected as the predetermined part is not deteriorated. A component replacement / repair determination support system that provides information to a user based on a comparison with a vehicle performance after replacement calculated by a calculation means.

  According to the present invention, it is possible to provide a parts replacement / repair determination support system capable of appropriately providing a determination material when a user determines whether to replace or repair a vehicle part.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.

  Hereinafter, an embodiment of a parts replacement / repair determination support system according to the present invention will be described with reference to FIGS. FIG. 1 is a diagram showing an example of the overall configuration of a parts replacement / repair determination support system 1 according to an embodiment of the present invention. The parts replacement / repair determination support system 1 is realized by the in-vehicle device 10 and the information processing center 100.

  The in-vehicle device 10 includes a component detection device 20, an in-vehicle sensor 30, a travel control device 40, a determination support electronic control unit (hereinafter referred to as a determination support ECU) 50, an input / output device 60, and a communication device 70. And comprising. Communication between devices in the vehicle in the following description is performed using an appropriate communication protocol such as CAN (Controller Area Network).

  In addition, among the components of the vehicle on which the in-vehicle device 10 is mounted, a wireless tag that transmits a component ID is used for a predetermined component that is considered to deteriorate due to the traveling of the vehicle or the passage of time (hereinafter referred to as “predetermined component”). Is attached. Examples of the predetermined parts include a clutch plate, a gear box, a tire, a fuel injection valve, an air cleaner, a brake pad, a suspension, and a specific group of parts that are generally replaced at the same time. . The component detection device 20 detects the component ID transmitted from the wireless tag attached to these predetermined components, and transmits the detected component ID to the determination support ECU 50.

  The in-vehicle sensor 30 is a sensor group for detecting vehicle behavior and the like, for example, a vehicle speed sensor, a G sensor, a yaw rate sensor, an accelerator opening sensor, a throttle opening sensor, a crank angle sensor, a brake pedaling amount sensor, a gradient sensor. Steering angle sensor, direction indicator sensor and the like.

  The travel control device 40 is a device group for performing travel control of the vehicle, and includes, for example, an engine control computer, a brake ECU, a steering controller, and the like. The travel control device 40 receives various sensor output values from the in-vehicle sensor 30, and outputs control signals to the engine, the brake device, the steering assist motor, and the like based on these sensor output values. The traveling control device 40 also periodically transmits the sensor output value input from the in-vehicle sensor 30 and the control signal output to the engine or the like to the determination support ECU 50.

  The determination support ECU 50 is, for example, a computer unit in which storage media such as a ROM, a RAM, and a hard disk are connected to each other via a bus (not shown) around a CPU, and includes an input / output interface, a timer, a counter, and the like. . In addition, the input / output device 60 is connected to the judgment support ECU 50 so that various input operations by the user are possible. As the input / output device 60, for example, a liquid crystal display device capable of touch input provided in a navigation system is shared.

  The judgment support ECU 50 sequentially stores the component IDs input from the component detection device 20 in the hard disk or the like as described above, and thus grasps the date and time when each predetermined component was most recently replaced. Further, the judgment support ECU 50 stores the sensor output value and the control signal input from the travel control device 40 together with time in a hard disk or the like. Each of these data, that is, the part ID of each predetermined part, the date and time of the most recent replacement, the sensor output value and the history of the control signal, together with the vehicle type and vehicle ID of the vehicle, are in accordance with instructions from the judgment support ECU 50. Is transmitted to the information processing center 100. The data transmission timing may be performed according to an input operation performed on the input / output device 60 by the user, or may be regular (daily, weekly, monthly, etc.).

  Communication between the communication device 70 and the information processing center 100 is performed via the radio base station 80 and the Internet 90. Between the communication device 70 and the wireless base station 80, wireless communication using a mobile phone network, a PHS (Personal Handy-phone System) network, a wireless LAN, a WiMAX (Worldwide Interoperability for Microwave Access), a satellite phone, a beacon, etc. Done. Accordingly, the communication device 70 includes a communication module, an antenna, and the like for performing wireless communication. Note that the radio base station 80 and the information processing center 100 are connected to the Internet 90, and wired communication is performed via the Internet 90. In addition, a user terminal 200 installed at an arbitrary place is connected to the Internet 90, and access to the information processing center 100 is possible by inputting a predetermined password or the like.

  The information processing center 100 is disposed at an arbitrary place connectable to the Internet 90, and includes an information processing computer, a ROM storing various programs, a storage medium capable of constructing a database, a wired communication interface, and the like. With such a hardware configuration, the information processing center 100 realizes a component deterioration determination system 110 and a performance determination system 120. In addition, on the storage medium, there are various specifications such as specifications of each part corresponding to the part ID, costs required when each part is replaced or repaired, a program for vehicle performance simulation performed by the performance determination system 120, and the like. A parts information database 130 for storing information is constructed. Here, the specifications of a part refer to data necessary for calculating the durability and performance of the part. For example, in the case of a gear box, various data such as a gear material code, a gear ratio, the number of gear stages, and a tooth diameter are included. included.

  The component deterioration determination system 110 determines the degree of deterioration for each predetermined component based on the component ID of each predetermined component transmitted from the in-vehicle device 10 as described above, the date and time of the most recent replacement, the sensor output value, and the history of the control signal. To derive. Specifically, by using a multivariate analysis using a model for determining the degree of deterioration prepared in advance for each type of component (for example, a model formula for a clutch plate, a model formula for a gear box, etc. is prepared). Derivation of the degree of deterioration.

  Specifically, for example, to derive the degree of deterioration (wear rate) of the clutch plate, the output of the half-clutch state is determined by comparing the output of the vehicle speed sensor and the crank angle sensor, and this is output from the engine control computer. Compared with the transition of the clutch control signal, the aging deterioration curve peculiar to the clutch plate can be taken into consideration. Derivation of the degree of deterioration of the fuel injection valve and the tire is performed by comparing the acceleration of the vehicle estimated from the throttle valve opening, the state of the gear box, the output value of the gradient sensor, etc. with the output value of the G sensor. be able to. In addition to this, various methods are conceivable, and any model formula may be applied. For example, the method described in (Japanese Patent Laid-Open No. 2005-50022), that is, the stress acting on each part is calculated from the traveling history of the vehicle acquired by the output from the vehicle-mounted sensor, and the accumulated stress is previously calculated for each part. A method of deriving the degree of deterioration of each component may be applied by applying to the set arithmetic expression.

  This degree of deterioration is derived, for example, as a numerical difference between the performance of a new product of the same type and the current performance. The component deterioration determination system 110 designates a predetermined component whose degree of deterioration exceeds a threshold value, and outputs the designated predetermined component and its degree of deterioration to the performance determination system 120.

  In the performance determination system 120, the in-vehicle device 10 is mounted based on the specified predetermined component and information on the degree of deterioration input from the component deterioration determination system 110 and information stored in the component information database 130. Calculates the current performance of the vehicle (hereinafter referred to as the current vehicle performance) and replaces the specified parts with a new product of the same type or another product (including the upgraded version of the same type). When the vehicle is repaired or the vehicle is repaired, the vehicle performance (hereinafter referred to as the vehicle performance after replacement) is calculated. Then, based on a comparison between the two, a material for determining whether or not the user performs replacement or repair of the vehicle parts (hereinafter referred to as “replacement etc.”) is provided. Here, the performance of the vehicle refers to the performance of the vehicle that can be quantified, for example, fuel efficiency performance, safety performance, and acceleration performance. The fuel efficiency is a value calculated when, for example, city driving is assumed. The unit of safety performance is, for example, an index value calculated based on braking performance, turning performance, etc., with a reference value of 100. Similarly, the unit of running performance is an index value calculated based on acceleration, braking, etc. with a reference value of 100.

  The performance determination system 120 includes a DB (database) management unit 122, a vehicle performance calculation unit 124, a browsing processing unit 126, and an integrated control unit (not shown) as its main functional blocks. The performance determination system 120 can be constructed by extending, interlocking, or the like with HILS (Hardware in the Loop Simulation) or the like.

  The DB management unit 122 acquires the spec of the predetermined part from the part information database 130 using the part ID of each predetermined part transmitted from the in-vehicle device 10 and outputs the spec to the vehicle performance calculation unit 124. In addition, the specification of an alternative part that can be replaced by the part deterioration determination system 110 or a predetermined part specified by the user is acquired from the part information database 130 and output to the vehicle performance calculation unit 124. Here, the substitute part may be, for example, a new article of the same type, another product, or a product obtained by repairing a predetermined part (hereinafter, these are referred to as “type of substitute part”). . The specification of the substitute part is the same as the specification of the predetermined part without referring to the part information database 130 when the substitute part is a new article of the same type or a product obtained by repairing a given part. When the substitute part is another product, the material, structure, or the like may be different from that of the predetermined part. Therefore, necessary data is acquired from the part information database 130.

  The DB management unit 122 periodically acquires the latest component specifications and simulation methods via the Internet 90 and updates the component information database 130. Other normal database management functions include data backup and creation and deletion of tables as needed.

  The vehicle performance calculation unit 124 receives the specifications of each predetermined component input from the DB management unit 122, the degree of deterioration of each predetermined component provided from the component deterioration determination system 110, and data related to the user vehicle (engine torque, gear ratio and number of steps). Vehicle performance simulation that comprehensively considers vehicle load, air resistance, and so on related to user driving, etc., and calculates the current vehicle performance.

  Further, the vehicle performance calculation unit 124 performs a vehicle performance simulation when it is assumed that each predetermined component specified by the component deterioration determination system 110 is replaced with a replacement component, and calculates the vehicle performance after replacement. Specifically, the specifications of the substitute part to be replaced with the specified part, the degree of deterioration of the substitute part (approximately zero for the same type of new products or other products, or the degree of deterioration of the specified part if the specified part has been repaired) And a vehicle performance simulation that comprehensively considers the data related to the user vehicle. In the present embodiment, the specifications and the degree of deterioration of the substitute parts are specific examples of “information on substitute parts” in the claims.

  It is assumed that the above-described “creation of information on substitute parts”, that is, the determination of the specifications and the degree of deterioration of the substitute parts is performed by the above-described integrated control unit (not shown).

  The browsing processing unit 126 outputs display data to the in-vehicle device 10 according to the calculation result of the vehicle performance calculation unit 124.

  Hereinafter, a specific example of the determination support process executed by the parts replacement / repair determination support system 1 of the present embodiment will be described. FIG. 2 is a flowchart illustrating an example of a determination support process executed by the component replacement repair determination support system 1. This flow is started, for example, when the user performs a predetermined input operation on the input / output device 60 of the in-vehicle device 10.

  First, the component ID of each predetermined component, the date and time of the most recent replacement, the history of sensor output values and control signals, the vehicle type, and the vehicle ID are transmitted from the in-vehicle device 10 to the information processing center 100 (S300).

  Upon receiving these data, the component deterioration determination system 110 derives the degree of deterioration for each predetermined part as described above, designates a predetermined part whose degree of deterioration has exceeded the threshold, and designates the specified predetermined part and its deterioration. The degree is output to the performance determination system 120 (S310).

  When the data is input from the component deterioration determination system, the DB management unit 122 acquires necessary data from the component information database 130 and outputs it to the vehicle performance calculation unit 124 as described above (S320). In addition, although the process after this step may be repeatedly performed, regarding the first data acquisition, a new article of the same type is adopted as an alternative part.

  When necessary data is input from the DB management unit 122, the vehicle performance calculation unit 124 calculates the current vehicle performance and the vehicle performance after replacement (S330). Note that the current vehicle performance is not calculated in the second and subsequent processes.

  When the vehicle performance calculation unit 124 calculates the vehicle performance, the browsing processing unit 126 transmits this to the in-vehicle device 10. In the in-vehicle device 10, the input / output device 60 displays the current vehicle performance and the vehicle performance after replacement in comparison (S340). An example of the display screen at this time is shown in FIG.

  As shown in the drawing, it is preferable to display the parts that have been replaced as a premise for calculating the running performance after replacement and the cost required for the replacement. In addition, for items whose improvement level exceeds the threshold value, highlighting or voice guidance may be performed to prompt parts replacement or the like.

  Thus, by displaying the current vehicle performance and the vehicle performance after replacement in comparison with each other, the user can know in advance the degree of improvement in vehicle performance due to parts replacement or the like. Therefore, it is possible to appropriately give a material for determining whether or not to replace the parts.

  When the result is displayed, the user determines whether or not to end the determination support process, and inputs the determination result to the input / output device 60 (S350).

  If the judgment support process is not terminated, the user may re-specify the part to be replaced, select a replacement part type (new type of the same type, another product, different from the repaired product), and another product. When there are a plurality of parts that are candidates for the other product, it is specified which part is to be selected (S360), and the process from S320 is executed again. By doing this, it is possible to find a combination such as replacement of a part that the user likes by changing the pattern of replacement in various ways. Here, the re-designation of the parts to be replaced may be limited to the range of the parts designated by the parts deterioration determination system 110, or may be left to the user without such limitation.

  It should be noted that the input operation and the result display related to the start of the determination support process may be performed on the user terminal 200 instead of the in-vehicle device 10.

  As described above, according to the parts replacement / repair determination support system 1 of the present embodiment, by displaying the current vehicle performance and the vehicle performance after replacement in comparison with each other, the user can improve the vehicle performance by replacing the parts. Can be known in advance. Therefore, it is possible to appropriately give a material for determining whether or not to perform component replacement or the like. In addition, it is possible to re-specify the parts to be replaced and to specify the type of alternative parts and repeatedly calculate the vehicle performance, so changing the pattern of replacement etc. and changing the parts that the user likes Etc. can be found.

  As mentioned above, although the best mode for carrying out the present invention has been described using one embodiment, the present invention is not limited to such one embodiment, and within the scope not departing from the gist of the present invention, Various modifications and substitutions can be made to the above-described embodiment.

  For example, it is possible to automatically calculate the vehicle performance after replacement several times after changing the designation of the parts and the designation of the substitute parts, etc., and obtain the optimum combination of parts replacement. At this time, it is more preferable to select an optimum one in consideration of the cost of replacement.

  In the first vehicle performance calculation, the replacement vehicle performance is calculated on the assumption that the parts specified by the parts deterioration determination system 110 are replaced with new parts of the same type. From the performance calculation, the user may be allowed to specify the type of the part to be replaced and the substitute part. Moreover, you may start from what repaired other products and predetermined parts.

  In addition, as a result of trying various combinations of parts replacement, etc., when the improvement shown in FIG. 3 is less than the standard level, no result is displayed. Only a message such as “No” may be output. In this way, when replacement or the like is unnecessary, the process can be completed without bothering the user.

  INDUSTRIAL APPLICABILITY The present invention can be used to construct a support system that gives a judgment material when a user tries to replace or repair a vehicle part. The appearance, weight, size, running performance, etc. of the vehicle on which the in-vehicle device is mounted are not limited.

It is a figure which shows an example of the whole structure of the components replacement | exchange repair judgment assistance system 1 which concerns on one Example of this invention. 6 is a flowchart illustrating an example of a determination support process executed by the component replacement / repair determination support system 1; It is a figure which shows an example of the display screen displayed by contrasting the present vehicle performance and the vehicle performance after replacement.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parts replacement repair judgment support system 10 In-vehicle apparatus 20 Parts detection apparatus 30 In-vehicle sensor 40 Traveling control apparatus 50 ECU for judgment support
DESCRIPTION OF SYMBOLS 60 Input / output device 70 Communication apparatus 80 Wireless base station 90 Internet 100 Information processing center 110 Parts deterioration judgment system 120 Performance judgment system 122 DB management part 124 Vehicle performance calculation part 126 Browse processing part 130 Parts information database 200 User terminal

Claims (12)

Predetermined part information acquisition means for acquiring information on a predetermined part included in the vehicle;
Alternative part information creating means for creating information on an alternative part that can be replaced with the predetermined part;
Vehicle performance calculation means for calculating vehicle performance based on the input information,
When the information on the predetermined part acquired by the predetermined part information acquisition unit is input, the current vehicle performance calculated by the vehicle performance calculation unit,
Calculated by the vehicle performance calculating means when information on the substitute part created by the substitute part information creating means is input instead of at least a part of the information on the prescribed part acquired by the predetermined part information obtaining means. A parts replacement / repair determination support system that provides information to the user based on a comparison with vehicle performance after replacement. The component replacement repair determination support system according to claim 1,
The content of the information provision to the user is a parts replacement / repair determination support system including a degree to which the vehicle performance after the replacement is improved from the current vehicle performance. A component replacement repair determination support system according to claim 1 or 2,
A component replacement repair determination support system that prompts a user to replace a component when the degree of improvement in the vehicle performance after the replacement from the current vehicle performance is a predetermined level or more. A parts replacement repair determination support system according to any one of claims 1 to 3,
The information regarding the predetermined part acquired by the predetermined part information acquiring means includes a degree of deterioration of the predetermined part and includes a part replacement / repair determination support system. A component replacement repair determination support system according to any one of claims 1 to 4,
Parts information storage means for storing information on vehicle parts;
A substitute part designating unit for designating the substitute part among vehicle parts stored in the part information storage unit,
The replacement part information creation means is means for creating information on the replacement part by acquiring information on the replacement part specified by the replacement part specification means from the part information storage means, and is a part replacement repair decision support system. The component replacement repair determination support system according to claim 5 according to claim 4,
The part replacement repair determination support system, wherein the substitute part designation unit is a unit that designates the substitute part based on a degree of deterioration of the predetermined part acquired by the predetermined part information acquisition unit. The part replacement repair determination support system according to claim 5 or 6,
The replacement part determination unit is a part replacement / repair determination support system that is a unit that specifies the replacement part based on a user input operation. A parts replacement repair determination support system according to any one of claims 5 to 7,
A plurality of combinations of parts that can be the substitute parts are designated from the information stored in the parts information storage means, and a plurality of the vehicle performances after the replacement calculated for each of the designated combinations of the plurality of parts. A part replacement / repair determination support system, comprising: selecting an optimal substitute part based on the information and providing information on the selected optimum substitute part. The part replacement repair determination support system according to claim 8,
The part information storage means stores information related to expenses required for replacement or repair of vehicle parts,
A part replacement characterized by selecting an optimal replacement part based on the cost required for replacement or repair of a vehicle part stored in the part information storage means and providing information on the selected optimal replacement part Repair decision support system.   The parts replacement / repair determination support system according to claim 1, which is realized by an in-vehicle device and an information processing center that can communicate with each other. The component replacement repair determination support system according to claim 10,
The vehicle performance calculation means is a parts replacement / repair determination support system installed in the information processing center. A deterioration degree acquisition means for acquiring a deterioration degree of a predetermined part provided in the vehicle;
Vehicle performance calculation means for calculating vehicle performance based on the degree of deterioration of the input parts,
The current vehicle performance calculated by the vehicle performance calculation means when the deterioration degree of the predetermined part acquired by the deterioration degree acquisition means is input;
The parts replacement is characterized in that the information is provided to the user based on a comparison with the vehicle performance after replacement calculated by the vehicle performance calculation means when the input information is corrected as the predetermined part is not deteriorated. Repair decision support system.

Images