system

The system enhances vehicle fault diagnosis by identifying and ordering necessary parts through a communication, display, and control unit, addressing inefficiencies in existing systems by providing AI-generated insights for efficient part identification and ordering.

JP2026073863APending Publication Date: 2026-05-01TOYOTA JIDOSHA KK
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
TOYOTA JIDOSHA KK
Filing Date
2024-10-18
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing vehicle fault diagnosis systems lack efficiency in identifying and ordering necessary parts for repair, often leading to omissions and increased work effort.

Method used

A system comprising a communication, display, storage, and control unit that identifies candidate faulty parts and related parts for replacement based on fault codes, using AI-generated information to enhance user efficiency.

Benefits of technology

Facilitates efficient identification and ordering of necessary vehicle parts, reducing omissions and improving work efficiency by providing detailed information and AI-generated insights.

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Abstract

To improve the system used by users when diagnosing vehicle malfunctions. [Solution] A system comprising a communication unit, a display unit, a storage unit, and a control unit, wherein the storage unit stores part information for each vehicle part, stores a parts list containing one or more candidate parts that may be faulty for each vehicle fault code, and when the control unit receives a fault code from the vehicle via the communication unit, it displays one or more candidate parts included in the parts list corresponding to the fault code on the display unit for selection, identifies one or more related parts that need to be replaced together with the faulty part based on the part information for the faulty part selected by the user from the displayed one or more candidate parts, and displays quotation information for ordering the faulty part and one or more related parts on the display unit.
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Description

Technical Field

[0001] This disclosure relates to a system.

Background Art

[0002] Conventionally, technologies related to systems used when a user performs vehicle fault diagnosis are known. For example, in Patent Document 1, there is disclosed a technology related to a device having a screen that displays a fault outline corresponding to a fault code, a diagram of a detection range in which the fault code is detected, and inspection work items within the detection range corresponding to the fault code divided into minimum work items for the user to select, and an inspection work screen that displays a detailed description of the inspection work content corresponding to each work item.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] There was room for improvement in technologies related to systems used when a user performs vehicle fault diagnosis.

[0005] In view of such circumstances, an object of the present disclosure is to improve a system used when a user performs vehicle fault diagnosis.

Means for Solving the Problems

[0006] A system according to an embodiment of the present disclosure is a system including a communication unit, a display unit, a storage unit, and a control unit, [[ID=4**]] wherein the storage unit stores component information related to each component of the vehicle, For each fault code of the aforementioned vehicle, a parts list containing one or more candidate parts that may be faulty is stored. The control unit, When a fault code is received from the vehicle via the communication unit, one or more candidate parts included in the parts list corresponding to the fault code are displayed on the display unit for selection. Based on the part information relating to the faulty part selected by the user from the displayed candidate parts, one or more related parts that need to be replaced along with the faulty part are identified. The display unit will show quotation information regarding the ordering of the faulty part and the one or more related parts. [Effects of the Invention]

[0007] According to one embodiment of this disclosure, an improvement is made to the system used by a user when performing a vehicle fault diagnosis. [Brief explanation of the drawing]

[0008] [Figure 1] This block diagram shows a schematic configuration of a system according to one embodiment of the present disclosure. [Figure 2] This is a flowchart showing the operation of a system according to one embodiment of this disclosure. [Modes for carrying out the invention]

[0009] The embodiments of this disclosure will be described below.

[0010] (Summary of the embodiment) Referring to Figure 1, an overview of the system 10 according to the embodiment of this disclosure will be described. The system 10 is used when a user (e.g., a mechanic) performs fault diagnosis on a vehicle. The system 10 is connected to the vehicle in a manner that allows it to communicate with a network including, for example, a wired connection or the Internet and a mobile communication network, and obtains a DTC (Diagnostic Trouble Code) from the vehicle.

[0011] System 10 is a computer, such as a server device.

[0012] The vehicle is, for example, an automobile, but is not limited to that and may be any vehicle. The automobile may be, but is not limited to, a BEV (Battery Electric Vehicle), HEV (Hybrid Electric Vehicle), PHEV (Plug-in Hybrid Electric Vehicle), or FCEV (Fuel Cell Electric Vehicle). The number of vehicles provided by system 10 may be determined arbitrarily.

[0013] First, an overview of this embodiment will be described, and details will be described later. The system 10 comprises a communication unit 11, a display unit 12, a storage unit 15, and a control unit 14. The storage unit 15 stores part information 20 for each vehicle part and stores a parts list 21 containing one or more candidate parts that may be faulty for each vehicle fault code. When the control unit 14 receives a fault code from the vehicle via the communication unit 11, it displays one or more candidate parts included in the parts list 21 corresponding to the fault code on the display unit 12 for selection. The control unit 14 also identifies one or more related parts that need to be replaced along with the faulty part based on the part information of the faulty part selected by the user from among the displayed one or more candidate parts, and displays quotation information for ordering the faulty part and one or more related parts on the display unit 12.

[0014] Thus, according to this embodiment, when the system 10 displays the quotation information on the display unit 12, it also displays quotation information for ordering one or more related parts that need to be replaced along with the faulty part. In other words, the user does not need to refer to a parts catalog or the like to extract related parts. Therefore, it is possible to prevent the omission of faulty parts and related parts and reduce the work of extracting them. Thus, the technology of the system used by the user when performing vehicle fault diagnosis is improved in terms of improving the user's work efficiency.

[0015] Next, each component of the system will be described in detail.

[0016] (Configuration of System 10) As shown in FIG. 1, system 10 includes a communication unit 11, a display unit 12, an input unit 13, a control unit 14, and a storage unit 15.

[0017] The communication unit 11 includes an interface for communicating with a vehicle. The interface may correspond to any wired communication standard or wireless communication standard.

[0018] The display unit 12 includes one or more output devices for outputting information. The output device is, for example, a display or a speaker, etc., but is not limited thereto. Alternatively, the display unit 12 may include an interface for connecting an external output device.

[0019] The input unit 13 includes one or more input devices for detecting user input. The input device is, for example, a physical key, a capacitive key, a pointing device such as a mouse, a touch screen provided integrally with the display of the display unit 12, or a microphone for receiving voice input, etc., but is not limited thereto. Alternatively, the input unit 13 may include an input interface for detecting user input via an external input device.

[0020] The control unit 14 includes one or more processors, one or more programmable circuits, one or more dedicated circuits, or a combination thereof. The processor is, for example, a general-purpose processor such as a CPU (Central Processing Unit) or a GPU (Graphics Processing Unit), or a dedicated processor specialized for a specific process, but is not limited thereto. The programmable circuit is, for example, an FPGA (Field-Programmable Gate Array), but is not limited thereto. The dedicated circuit is, for example, an ASIC (Application Specific Integrated Circuit), but is not limited thereto. Hereinafter, the processor, the programmable circuit, and the dedicated circuit will not be particularly distinguished and will also be referred to as "processor etc.".

[0021] The memory unit 15 includes one or more memories. The memory is, for example, a semiconductor memory, a magnetic memory, an optical memory, or the like, but is not limited thereto. Each memory included in the memory unit 15 may function as, for example, a main memory device, an auxiliary memory device, or a cache memory. The memory unit 15 stores any information used for the operation of the system 10. For example, the memory unit 15 may store a system program, an application program, and embedded software. In the present embodiment, the memory unit 15 stores the component information 20 and the component list 2l related to the failure code. The component information 20 may include, for example, information such as the component name, part number, specification, inventory information, replacement operation procedure, one or more related components that need to be replaced together when the component is replaced, the standard operation time required for replacement, maintenance history, the number of times determined by the user to be faulty, the number of times ordered, and the number of times replaced, but is not limited thereto. The component list 2l related to the failure code may include, for example, one or more candidate components that may be faulty for each failure code, the history of the inspection operation procedure confirmed by the user for each failure code, but is not limited thereto. Further, the memory unit 15 stores a generation AI that generates and outputs a sentence or an image related to the component according to the component information for the input including the component information.

[0022] (Operation flow of the system 10) Referring to FIG. 2, the operation of the system 10 according to the present embodiment will be described.

[0023] S100: The control unit 14 receives a failure code from the vehicle via the communication unit 11.

[0024] The method of receiving the failure code is, for example, a method of obtaining via CAN, but is not limited thereto, and any method can be adopted. [[ID=I8]]

[0025] S101: The control unit 14 displays, on the display unit 12 in a selectable manner, one or more candidate components that may be faulty for each failure code received from the vehicle.

[0026] S102: The control unit 14 determines the order in which one or more candidate parts are most likely to be faulty, based on the count information contained in the part information 20.

[0027] The count information may include, but is not limited to, at least one of the number of times the user has determined a part to be faulty, the number of times it has been ordered, or the number of times it has been replaced. The control unit 14 may, for example, determine that a part is more likely to be faulty if the sum of the counts of each part included in the count information is high. In S104, the one or more candidate parts displayed on the display unit 12 may be rearranged in order of likelihood of being faulty.

[0028] S103: The control unit 14 generates and outputs text or images related to the component information using the generation AI stored in the storage unit 15 in response to an input that includes component information for one or more candidate components.

[0029] The text or images related to the component information generated by the generation AI may include, but are not limited to, information on anticipated causes of failure, market occurrences, usage methods or operations that lead to failure, and information on components that are likely to fail at the same time. Any method, such as a large-scale language model, can be used for the generation AI. The generation AI generates and outputs text or images related to the component information in response to inputs that include component information such as maintenance history. The text or images generated and output by the generation AI may be displayed together with one or more candidate components displayed on the display unit 12 in S104.

[0030] S104: The control unit 14 may rearrange and display one or more candidate components on the display unit 12 in order of likelihood of failure. Alternatively, text or images generated and output by the generation AI may be displayed on the display unit 12.

[0031] Users can perform inspections starting with parts most likely to be faulty, enabling efficient inspection work regardless of individual skills or knowledge. Furthermore, users can efficiently identify faulty areas by reviewing the text or images generated and output by the AI. In addition, users can understand usage methods or operations that may lead to failures, preventing the recurrence of the same problem. Moreover, simultaneous inspection of parts and areas likely to fail can improve vehicle safety.

[0032] S105: The user performs a vehicle inspection according to the display on the display unit 12 and determines whether or not there are any faulty parts.

[0033] The display unit 12 may display a fault diagnosis screen that includes, for example, candidate parts that may be faulty, inspection procedures, text or images generated and output by the generation AI, and drawings of the vehicle or parts. If the user performs a vehicle inspection and determines that no faulty parts exist, the process ends. On the other hand, if the user determines that faulty parts exist, S106 is executed.

[0034] S106: The user selects a faulty component from one or more candidate components displayed on the display unit 12.

[0035] S107: The control unit 14 identifies one or more related parts that need to be replaced along with the faulty part, based on the part information of the faulty part selected by the user, from among the one or more candidate parts displayed on the display unit 12.

[0036] The control unit 14 refers to the component information 20 and identifies one or more related components that need to be replaced along with the faulty component. If related components exist, S108 is executed; otherwise, S109 is executed.

[0037] S108: The control unit 14 displays detailed information of the faulty component and the one or more related components on the display unit 12.

[0038] The detailed information may include, but is not limited to, the part name, part number, specifications, inventory information, replacement procedure, information on one or more related parts that need to be replaced along with the part in question, the standard work time for the replacement, and text or images generated and output by the AI. By checking the detailed information, users can understand the work procedure and work time when replacing the faulty part and related parts.

[0039] S109: The control unit 14 displays detailed information about the faulty component on the display unit 12.

[0040] As mentioned above, the detailed information may include, but is not limited to, the part name, part number, specifications, inventory information, replacement procedure, information on one or more related parts that need to be replaced along with the part in question, the standard work time for replacement, and text or images generated and output by the AI.

[0041] S110: The control unit 14 displays quotation information regarding ordering the faulty part and the one or more related parts on the display unit 12.

[0042] When a user requests quotation information via the input unit 13, the quotation information may be displayed on the display unit 12. The control unit 14 may display quotation information for the faulty part and related parts selected by the user. The control unit 14 may also display quotation information for faulty parts and related parts that are not in stock, based on inventory information. Since the user can obtain quotation information based on inventory information, it is possible to prevent purchasing parts that are not needed and resulting in excess inventory. In addition, since the user does not need to check the inventory status, it leads to improved work efficiency.

[0043] While this disclosure has been described based on the drawings and embodiments, it should be noted that those skilled in the art may make various modifications and alterations based on this disclosure. Therefore, it should be noted that these modifications and alterations are within the scope of this disclosure. For example, the functions, etc., included in each component or step can be rearranged in a logically consistent manner, and multiple components or steps can be combined into one or divided into two.

[0044] For example, in the embodiments described above, it is also possible to distribute the configuration and operation of system 10 across multiple computers that can communicate with each other. For example, it is also possible to install some or all of the components of system 10 in a vehicle. [Explanation of Symbols]

[0045] 10 System, 11 Communication Unit, 12 Display Unit, 13 Input Unit, 14 Control Unit, 15 Storage Unit, 20 Parts Information, 21 Parts List related to DTC

Claims

1. A system comprising a communication unit, a display unit, a storage unit, and a control unit, The aforementioned storage unit is For each vehicle part, part information related to the said part is stored. For each fault code of the aforementioned vehicle, a parts list containing one or more candidate parts that may be faulty is stored. The control unit, When a fault code is received from the vehicle via the communication unit, one or more candidate parts included in the parts list corresponding to the fault code are displayed on the display unit for selection. Based on the part information relating to the faulty part selected by the user from the displayed one or more candidate parts, one or more related parts that need to be replaced along with the faulty part are identified. A system that displays quotation information for ordering the faulty part and the one or more related parts on the display unit.

2. The system according to claim 1, The control unit, A system that, when displaying one or more candidate parts on the display unit in a selectable format, rearranges and displays the one or more candidate parts based on the part information.

3. The system according to claim 2, The aforementioned part information includes at least one of the number of times the part has been determined to be faulty by the user, the number of times it has been ordered, or the number of times it has been replaced. The control unit, Based on the aforementioned frequency information, the order in which the one or more candidate parts are most likely to be faulty is determined. A system that, when displaying one or more candidate parts on the display unit in a selectable manner, rearranges the one or more candidate parts on the display unit in order of their likelihood of being faulty.

4. A system according to any one of claims 1 to 3, The aforementioned storage unit is It stores a generation AI that, in response to an input containing part information, generates and outputs text or images related to the part information. The control unit, A system that, when displaying one or more candidate parts on the display unit in a selectable manner, displays text or images related to the one or more candidate parts that have been generated and output by the generation AI in response to an input that includes part information of the one or more candidate parts.

Citation Information

Patent Citations

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    JP2017198526A