ECU performance early warning method and device and computer readable storage medium

Abstract

The invention discloses an ECU (Electronic Control Unit) performance early-warning method and device and a computer readable storage medium, which are applied to a TBOX (Telematics Box) of a vehicle, and are characterized in that the TBOX is connected with the computer readable storage medium, the TBOX is connected with the computer readable storage medium, and the TBOX is connected with the computer readable storage medium. The method comprises the following steps: collecting ECU alarm data which is sent by the ECU and meets a preset ECU alarm condition according to a preset Ethernet protocol and / or collecting TBOX alarm data which is sent by the TBOX and meets a preset TBOX alarm condition according to a preset inter-process communication protocol; and generating current early warning information according to one or more of the data type, the alarm level and the alarm object of the ECU alarm data and / or the TBOX alarm data, and reporting the early warning information to a remote monitoring service platform according to a preset hypertext transfer protocol. According to the invention, an autonomous, efficient and convenient ECU performance early warning scheme is realized.

Description

Technical Field

[0001] The present invention relates to the field of vehicle communication technology, and in particular to an ECU performance warning method, device and computer-readable storage medium. Background Art

[0002] In the existing technology, the degree of vehicle intelligence is getting higher and higher. As a carrier of vehicle data transmission, TBOX (Telematics Box, remote communication terminal) plays an increasingly important role and its functions are becoming more and more complex. At present, both vehicle manufacturers and TBOX manufacturers are pursuing platformization and modularization of products to make the production process more standardized and the production cost lower. Specifically for TBOX, the country also has corresponding standard requirements for the upload of vehicle data (for example, GB / T 3296 national standard protocol specification, "Guidelines for the Construction of the National Internet of Vehicles Industry Standard System (Electronic Products and Services)", etc.).

[0003] Current problems and existing solutions: In order to meet national standards and take into account the intelligent needs of products, for car manufacturers: provide customers with a better driving experience, integrated personalized functions, and higher and higher intelligence. However, the actual situation is that the more functions a vehicle has, the more complex the internal programming is, and the higher the requirements and challenges for quality. Once quality problems occur in the later stage, it will affect the driving experience of customers and generate higher after-sales costs; from the perspective of TBOX: TBOX is an external network router, and all vehicle data must pass through TBOX to reach the platform end. The higher the degree of automobile intelligence, the more complex the corresponding functions of TBOX. The increase in internal function processing will be a great challenge to the quality and performance of TBOX. At the same time, the ECU (Electronic Control Unit, electronic controller unit) in the domain control is also the same as TBOX. If there is insufficient performance, it will cause business processing abnormalities, abnormal restarts, upgrade abnormalities and other serious problems, which will have a greater impact on the user's use of the car and the validity of the customer platform data. At the same time, considering that performance problems will be difficult to troubleshoot, it is often difficult to analyze performance problems through logs after a fault occurs. Even if the performance data of the ECU is recorded in the log, the problem is not discovered until a period of time later. Due to the lack of detailed logs at the time of occurrence, the fault cannot be analyzed and solved in time. At this point, testers are needed to perform tests to reproduce the problem, and maintenance personnel are required to monitor data on the platform at all times. A large amount of manpower and material resources are consumed in the reproduction and analysis of the fault.

[0004] To sum up, how to realize an autonomous, efficient and convenient ECU performance early warning solution has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to overcome the deficiencies in the prior art, the purpose of the present invention is to provide an ECU performance warning method, device and computer-readable storage medium to solve the problem that the current ECU performance warning is delayed, resulting in the failure to be analyzed and solved in time.

[0006] The present invention proposes an ECU performance early warning method, which is applied to the TBOX of a vehicle. The method comprises: Collecting ECU alarm data that meets preset ECU alarm conditions and is sent by the ECU according to a preset Ethernet protocol and / or collecting TBOX alarm data that meets preset TBOX alarm conditions of the TBOX itself according to a preset inter-process communication protocol; The current warning information is generated according to one or more of the data type, warning level and warning object of the ECU warning data and / or the TBOX warning data, and the warning information is reported to a remote monitoring service platform according to a preset hypertext transfer protocol.

[0007] Optionally, before collecting the alarm data, the method includes: Generating the ECU warning condition according to the attribute parameters of the ECU itself and / or the instruction task to be executed; The ECU alarm condition is sent to a performance monitoring module of the ECU, wherein the ECU alarm condition includes an ECU alarm monitoring period, an ECU alarm monitoring object, and an ECU alarm monitoring level.

[0008] Optionally, before collecting the alarm data, the method includes: generating the TBOX alarm condition according to the attribute parameters of the TBOX itself and / or the instruction task to be executed; The TBOX alarm condition is written into the performance monitoring module of the TBOX itself, wherein the TBOX alarm condition includes a TBOX alarm monitoring period, a TBOX alarm monitoring object and a TBOX alarm monitoring level.

[0009] Optionally, collecting ECU warning data that meets preset ECU warning conditions and is sent by the ECU according to a preset Ethernet protocol further includes: Acquire the working state of the TBOX and the task state of the ECU, and determine the collection time of the ECU alarm data according to the working state of the TBOX and / or the task state of the ECU, wherein the ECU alarm monitoring period corresponding to the ECU alarm monitoring object and the ECU alarm monitoring level is set within the collection time; The ECU warning data sent by the ECU is collected according to the Ethernet protocol within the collection time.

[0010] Optionally, the collecting the TBOX alarm data of the TBOX itself that meets the preset TBOX alarm condition according to the preset inter-process communication protocol further includes: Acquire the working state of the TBOX and the task state of the TBOX, and determine the collection time of the TBOX alarm data according to the working state of the TBOX and / or the task state of the TBOX, wherein the TBOX alarm monitoring period corresponding to the TBOX alarm monitoring object and the TBOX alarm monitoring level is set within the collection time; The TBOX alarm data of the TBOX itself is collected according to the inter-process communication protocol within the collection time.

[0011] Optionally, generating the current warning information according to one or more of the data type, warning level and warning object of the ECU warning data and / or the TBOX warning data further includes: Determine a current ECU alarm object and an ECU alarm level corresponding to the ECU alarm object; The alarm data corresponding to the ECU alarm object and the ECU alarm level are collected, and corresponding warning information is generated according to the data type.

[0012] Optionally, generating the current warning information according to one or more of the data type, warning level and warning object of the ECU warning data and / or the TBOX warning data further includes: Determine the current TBOX alarm object and the TBOX alarm level corresponding to the TBOX alarm object; Alarm data corresponding to the TBOX alarm object and the TBOX alarm level are collected, and corresponding early warning information is generated according to the data type.

[0013] Optionally, after reporting the warning information to a remote monitoring service platform according to a preset hypertext transfer protocol, the method further includes: Receiving configuration parameters issued by the monitoring service platform; The ECU warning condition and / or the TBOX warning condition are updated according to the configuration parameters.

[0014] The present invention also proposes an ECU performance warning device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the ECU performance warning method as described in any one of the above items are implemented.

[0015] The present invention also proposes a computer-readable storage medium, on which an ECU performance warning program is stored. When the ECU performance warning program is executed by a processor, the steps of the ECU performance warning method as described in any one of the above items are implemented.

[0016] The ECU performance warning method, device and computer-readable storage medium of the present invention collect ECU warning data sent by the ECU that meets the preset ECU warning conditions according to the preset Ethernet protocol and / or collect TBOX warning data of the TBOX itself that meets the preset TBOX warning conditions according to the preset inter-process communication protocol; generate current warning information according to one or more of the data types, warning levels and warning objects of the ECU warning data and / or the TBOX warning data, and report the warning information to a remote monitoring service platform according to the preset hypertext transfer protocol. An autonomous, efficient and convenient ECU performance warning solution is realized, which reduces the manpower, material resources and time costs consumed by fault reproduction, improves the effectiveness of fault analysis, and enhances the functional stability of TBOX and ECU. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which: Figure 1 is a first flow chart of the ECU performance early warning method of the present invention; Figure 2 is a second flow chart of the ECU performance early warning method of the present invention; Figure 3 is a third flow chart of the ECU performance early warning method of the present invention; Figure 4 is a fourth flow chart of the ECU performance early warning method of the present invention; Figure 5 is a fifth flow chart of the ECU performance early warning method of the present invention; Figure 6 is the sixth flow chart of the ECU performance early warning method of the present invention; Figure 7 is the seventh flow chart of the ECU performance early warning method of the present invention; Figure 8 is an eighth flow chart of the ECU performance early warning method of the present invention; Fig. 9 It is an interactive schematic diagram of the ECU performance early warning method of the present invention. DETAILED DESCRIPTION

[0018] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0019] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0020] Figure 1 This is the first flow chart of the ECU performance warning method of the present invention. This embodiment proposes an ECU performance warning method, which is applied to the TBOX of a vehicle, and the method includes: S1. Collecting ECU alarm data that meets preset ECU alarm conditions and is sent by the ECU according to a preset Ethernet protocol and / or collecting TBOX alarm data that meets preset TBOX alarm conditions and is sent by the TBOX according to a preset inter-process communication protocol; S2. Generate current warning information according to one or more of the data type, warning level and warning object of the ECU warning data and / or the TBOX warning data, and report the warning information to a remote monitoring service platform according to a preset hypertext transfer protocol.

[0021] In this embodiment, please refer to Fig. 9The interactive schematic diagram of the ECU performance warning method of the present invention is shown. The domain controller serves as the hub to connect the information interaction between the electronic units. The interactive protocol adopts the SOME / IP or IPCP protocol, and the message header has the unique identification of the destination and the source. The performance monitoring module is implemented in the ECU; the platform interaction module and the performance monitoring module are implemented in the TBOX. A performance warning monitoring function is implemented for each ECU in the domain controller, and the performance alarm is sent to the TBOX via Ethernet. The TBOX receives the performance alarm and reports it to the remote server to prompt the performance risk. Specifically, the performance monitoring function on TBOX is divided into platform interaction module and performance monitoring module; platform interaction module receives performance alarm data and reports it; TBOX and other ECUs in domain control implement performance monitoring module; performance monitoring module checks system CPU usage in a 2-minute cycle, reports level 1 alarm when it exceeds 80%, reports level 2 alarm when it exceeds 85%, and reports level 3 alarm when it exceeds 90%; performance monitoring module checks system memory usage in a 2-minute cycle, reports level 1 alarm when it exceeds 80%, reports level 2 alarm when it exceeds 85%, and reports level 3 alarm when it exceeds 90%; performance monitoring module checks CPU usage of all processes in the system in a 1-minute cycle, memory usage, memory usage and other data save files; when an alarm is generated, the performance monitoring module in ECU sends the alarm information and performance record files through Ethernet The TBOX platform interaction module receives the Ethernet data and reports the alarm information and performance file path to the remote monitoring service platform through HTTP or HTTPS according to the platform protocol; the TBOX platform interaction module receives the IPC data and reports the TBOX alarm information and performance file to the remote monitoring service platform through HTTP or HTTPS according to the platform protocol; the remote service platform receives the alarm data from the terminal and dynamically presents the alarm information and performance data file on the web interface, so that the monitoring personnel can timely learn about the risks and download the performance data file for further analysis to optimize the ECU performance. It can be seen that in this embodiment, for the early warning monitoring of ECU and TBOX performance in the automotive domain control, the system performance alarm of ECU can be monitored more conveniently, the ECU performance status can be timely learned through the platform alarm, and the effective performance record log can be downloaded to analyze and solve the abnormal problems that may be caused by performance reasons, so as to promote the stability of ECU and TBOX. In particular, when testing vehicle ECU and TBOX functions and analyzing problems, the performance monitoring platform can be used as a reference. If the problem is due to performance reasons, the location analysis can be carried out quickly.

[0022] The beneficial effect of this embodiment is that by collecting the ECU alarm data that meets the preset ECU alarm conditions sent by the ECU according to the preset Ethernet protocol and / or collecting the TBOX alarm data that meets the preset TBOX alarm conditions of the TBOX itself according to the preset inter-process communication protocol; generating the current warning information according to one or more of the data types, alarm levels and alarm objects of the ECU alarm data and / or the TBOX alarm data, and reporting the warning information to the remote monitoring service platform according to the preset hypertext transfer protocol. An autonomous, efficient and convenient ECU performance warning solution is realized, which reduces the manpower, material resources and time costs consumed by fault reproduction, improves the effectiveness of fault analysis, and enhances the functional stability of TBOX and ECU.

[0023] Figure 2 : is a second flow chart of the ECU performance warning method of the present invention. Based on the above embodiment, before collecting the warning data, it includes: S01, generating the ECU warning condition according to the attribute parameters of the ECU itself and / or the instruction task to be executed; S02. Sending the ECU alarm condition to a performance monitoring module of the ECU, wherein the ECU alarm condition includes an ECU alarm monitoring period, an ECU alarm monitoring object, and an ECU alarm monitoring level.

[0024] In this embodiment, the attribute parameters of the ECU itself include the performance parameters of the current ECU, the domain controller to which it belongs, and other ECUs with associated relationships.

[0025] Figure 3 is a third flow chart of the ECU performance warning method of the present invention. Based on the above embodiment, before collecting the warning data, it includes: S03, generating the TBOX alarm condition according to the attribute parameters of the TBOX itself and / or the instruction task to be executed; S04. Writing the TBOX alarm condition into the performance monitoring module of the TBOX itself, wherein the TBOX alarm condition includes a TBOX alarm monitoring period, a TBOX alarm monitoring object and a TBOX alarm monitoring level.

[0026] In this embodiment, the attribute parameters of the TBOX itself include the performance parameters of the current TBOX.

[0027] Figure 4 The fourth flow chart of the ECU performance warning method of the present invention is based on the above embodiment, and the ECU warning data sent by the ECU and meeting the preset ECU warning conditions are collected according to the preset Ethernet protocol, further comprising: S11, obtaining the working state of the TBOX and the task state of the ECU, and determining the collection time of the ECU alarm data according to the working state of the TBOX and / or the task state of the ECU, wherein the ECU alarm monitoring period corresponding to the ECU alarm monitoring object and the ECU alarm monitoring level is set within the collection time; S12. Collecting the ECU alarm data sent by the ECU according to the Ethernet protocol within the collection time.

[0028] In this embodiment, in the working state of the TBOX, within the time when the alarm information is not generated, the task state of the ECU is analyzed to determine the duration of the task execution state of the ECU as the acquisition time.

[0029] Figure 5 The fifth flow chart of the ECU performance warning method of the present invention is based on the above embodiment, and the TBOX warning data of the TBOX itself that meets the preset TBOX warning conditions is collected according to the preset inter-process communication protocol, further comprising: S12, obtaining the working state of the TBOX and the task state of the TBOX, and determining the collection time of the TBOX alarm data according to the working state of the TBOX and / or the task state of the TBOX, wherein the TBOX alarm monitoring period corresponding to the TBOX alarm monitoring object and the TBOX alarm monitoring level is set within the collection time; S13, collecting the TBOX alarm data of the TBOX itself according to the inter-process communication protocol within the collection time.

[0030] In this embodiment, in the working state of the TBOX, within the time when the alarm information is not generated, the task state of the TBOX is analyzed to determine the duration of the task execution state of the TBOX as the collection time.

[0031] Figure 6 is a sixth flow chart of the ECU performance warning method of the present invention, based on the above embodiment, generating current warning information according to one or more of the data type, warning level and warning object of the ECU warning data and / or the TBOX warning data, further comprising: S21, determining a current ECU alarm object and an ECU alarm level corresponding to the ECU alarm object; S22, collecting alarm data corresponding to the ECU alarm object and the ECU alarm level, and generating corresponding warning information according to the data type.

[0032] Figure 7 The seventh flow chart of the ECU performance warning method of the present invention is based on the above embodiment, and generates the current warning information according to one or more of the data type, warning level and warning object of the ECU warning data and / or the TBOX warning data, further comprising: S23, determining the current TBOX alarm object and the TBOX alarm level corresponding to the TBOX alarm object; S24, collecting alarm data corresponding to the TBOX alarm object and the TBOX alarm level, and generating corresponding early warning information according to the data type.

[0033] Figure 8 This is the eighth flow chart of the ECU performance warning method of the present invention. Based on the above embodiment, after reporting the warning information to the remote monitoring service platform according to the preset hypertext transfer protocol, it also includes: S31, receiving configuration parameters issued by the monitoring service platform; S32. Update the ECU warning condition and / or the TBOX warning condition according to the configuration parameters.

[0034] In this embodiment, the remote performance monitoring platform provides an intuitive interface to display the performance warning information and performance data of the vehicle domain control ECU.

[0035] In this embodiment, the ECU and TBOX in the vehicle domain control implement a performance monitoring module to monitor system performance, including recording and saving performance data such as CPU occupancy alarm, CPU occupancy alarm, CPU occupancy of all processes in the system, and memory usage.

[0036] In this embodiment, a platform interaction module is implemented in the vehicle TBOX to receive alarm messages from the ECU and TBOX and report them to the remote performance monitoring platform.

[0037] In this embodiment, TBOX and other ECUs exchange messages via Ethernet in accordance with the SOME / IP protocol or the IPCP protocol.

[0038] In this embodiment, the TBOX and the performance monitoring platform report alarm messages and performance data files via the mobile wireless network in accordance with the HTTP or HTTPS protocol.

[0039] In this embodiment, message communication is performed between the internal functional modules of the TBOX via IPC.

[0040] In this embodiment, when the vehicle is ignited, the monitoring function is effectively operated; when the vehicle is turned off, the monitoring function is invalid.

[0041] The beneficial effect of this embodiment is that by collecting the ECU alarm data that meets the preset ECU alarm conditions sent by the ECU according to the preset Ethernet protocol and / or collecting the TBOX alarm data that meets the preset TBOX alarm conditions of the TBOX itself according to the preset inter-process communication protocol; generating the current warning information according to one or more of the data types, alarm levels and alarm objects of the ECU alarm data and / or the TBOX alarm data, and reporting the warning information to the remote monitoring service platform according to the preset hypertext transfer protocol. An autonomous, efficient and convenient ECU performance warning solution is realized, which reduces the manpower, material resources and time costs consumed by fault reproduction, improves the effectiveness of fault analysis, and enhances the functional stability of TBOX and ECU.

[0042] Based on the above embodiments, the present invention also proposes an ECU performance warning device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the ECU performance warning method as described in any one of the above items are implemented.

[0043] It should be noted that the above-mentioned device embodiment and method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, and the technical features in the method embodiment are correspondingly applicable in the device embodiment, which will not be repeated here.

[0044] Based on the above embodiments, the present invention also proposes a computer-readable storage medium, on which an ECU performance warning program is stored. When the ECU performance warning program is executed by a processor, the steps of the ECU performance warning method as described in any one of the above items are implemented.

[0045] It should be noted that the above-mentioned medium embodiment and method embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, and the technical features in the method embodiment are correspondingly applicable in the medium embodiment, which will not be repeated here.

[0046] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present invention.

[0047] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0048] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation modes, which are merely illustrative rather than restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are within the protection of the present invention.

Claims

1. An ECU performance early warning method, applied to a vehicle's TBOX, characterized in that: The method comprises: Collecting ECU alarm data that meets preset ECU alarm conditions and is sent by the ECU according to a preset Ethernet protocol and / or collecting TBOX alarm data that meets preset TBOX alarm conditions of the TBOX itself according to a preset inter-process communication protocol; The current warning information is generated according to one or more of the data type, warning level and warning object of the ECU warning data and / or the TBOX warning data, and the warning information is reported to a remote monitoring service platform according to a preset hypertext transfer protocol.

2. The ECU performance early warning method according to claim 1, characterized in that: Before collecting the alarm data, the following steps are included: Generating the ECU warning condition according to the attribute parameters of the ECU itself and / or the instruction task to be executed; The ECU alarm condition is sent to a performance monitoring module of the ECU, wherein the ECU alarm condition includes an ECU alarm monitoring period, an ECU alarm monitoring object, and an ECU alarm monitoring level.

3. The ECU performance early warning method according to claim 1, characterized in that: Before collecting the alarm data, the following steps are included: generating the TBOX alarm condition according to the attribute parameters of the TBOX itself and / or the instruction task to be executed; The TBOX alarm condition is written into the performance monitoring module of the TBOX itself, wherein the TBOX alarm condition includes a TBOX alarm monitoring period, a TBOX alarm monitoring object and a TBOX alarm monitoring level.

4. The ECU performance early warning method according to claim 2, characterized in that: The collecting of ECU warning data that meets preset ECU warning conditions and is sent by the ECU according to a preset Ethernet protocol further includes: Acquire the working state of the TBOX and the task state of the ECU, and determine the collection time of the ECU alarm data according to the working state of the TBOX and / or the task state of the ECU, wherein the ECU alarm monitoring period corresponding to the ECU alarm monitoring object and the ECU alarm monitoring level is set within the collection time; The ECU warning data sent by the ECU is collected according to the Ethernet protocol within the collection time.

5. The ECU performance early warning method according to claim 3 is characterized in that: The collecting of the TBOX alarm data of the TBOX itself that meets the preset TBOX alarm conditions according to the preset inter-process communication protocol further includes: Acquire the working state of the TBOX and the task state of the TBOX, and determine the collection time of the TBOX alarm data according to the working state of the TBOX and / or the task state of the TBOX, wherein the TBOX alarm monitoring period corresponding to the TBOX alarm monitoring object and the TBOX alarm monitoring level is set within the collection time; The TBOX alarm data of the TBOX itself is collected according to the inter-process communication protocol within the collection time.

6. The ECU performance early warning method according to claim 1, characterized in that: The generating current warning information according to one or more of the data type, the warning level and the warning object of the ECU warning data and / or the TBOX warning data further includes: Determine a current ECU alarm object and an ECU alarm level corresponding to the ECU alarm object; The alarm data corresponding to the ECU alarm object and the ECU alarm level are collected, and corresponding warning information is generated according to the data type.

7. The ECU performance early warning method according to claim 1, characterized in that: The generating current warning information according to one or more of the data type, the warning level and the warning object of the ECU warning data and / or the TBOX warning data further includes: Determine the current TBOX alarm object and the TBOX alarm level corresponding to the TBOX alarm object; Alarm data corresponding to the TBOX alarm object and the TBOX alarm level are collected, and corresponding early warning information is generated according to the data type.

8. The ECU performance early warning method according to claim 1, characterized in that: After the warning information is reported to the remote monitoring service platform according to the preset hypertext transfer protocol, the method further includes: Receiving configuration parameters issued by the monitoring service platform; The ECU warning condition and / or the TBOX warning condition are updated according to the configuration parameters.

9. An ECU performance warning device, characterized in that: The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the steps of the ECU performance warning method as described in any one of claims 1 to 8 are implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an ECU performance warning program, which, when executed by a processor, implements the steps of the ECU performance warning method according to any one of claims 1 to 8.

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