CN114863582A - Vehicle-mounted diagnosis method and device, electronic equipment and readable storage medium - Google Patents
Vehicle-mounted diagnosis method and device, electronic equipment and readable storage medium Download PDFInfo
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000002405 diagnostic procedure Methods 0.000 claims description 4
- 238000004590 computer program Methods 0.000 claims description 2
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- 239000013307 optical fiber Substances 0.000 description 2
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/006—Indicating maintenance
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/008—Registering or indicating the working of vehicles communicating information to a remotely located station
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C5/00—Registering or indicating the working of vehicles
- G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
- G07C5/0808—Diagnosing performance data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L12/40006—Architecture of a communication node
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40208—Bus networks characterized by the use of a particular bus standard
- H04L2012/40215—Controller Area Network CAN
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/40—Bus networks
- H04L2012/40267—Bus for use in transportation systems
- H04L2012/40273—Bus for use in transportation systems the transportation system being a vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
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Abstract
The invention discloses a vehicle-mounted diagnosis method, a vehicle-mounted diagnosis device, electronic equipment and a readable storage medium, wherein the method comprises the following steps: extracting a can network signal when a fault occurs to obtain fault code information; acquiring an internal signal of the controller according to the fault code information; according to on-vehicle diagnosis is carried out to the inside signal of controller, resolves through the trouble code that snatchs, when confirming the inside signal of trouble code, records and uploads the trouble code signal of different types through the time of predetermineeing, very big improvement investigation efficiency, especially to the contingency trouble, can be according to the real-time corresponding data of record of trouble code, improved failure analysis's accuracy, reduce the data volume of uploading to the quality of assurance data.
Description
Technical Field
The invention relates to the technical field of vehicle fault diagnosis, in particular to a vehicle-mounted diagnosis method and device, electronic equipment and a readable storage medium.
Background
With the increasing popularity of domestic vehicles, more and more individuals own the vehicles. Therefore, it is important for the vehicle owner to be able to know some basic states of the own vehicle locally, such as whether the current vehicle has a fault, the position of the fault, and the like. At present, data capture is generally performed on a control system in an off-line mode during the running process of a vehicle, a diagnostic instrument is used for reading faults of the whole vehicle and freezing frame data after the faults occur, corresponding data cannot be captured according to the types of the faults, the troubleshooting direction can only be determined by experience, occasional faults cannot be analyzed quickly, faults can not be debugged, and further the faults are not processed favorably.
Disclosure of Invention
The invention mainly aims to provide a vehicle-mounted diagnosis method, a vehicle-mounted diagnosis device, electronic equipment and a readable storage medium, wherein captured fault codes are analyzed, signals in the fault codes are determined, and meanwhile, fault code signals of different types are recorded and uploaded in preset time, so that the troubleshooting efficiency is greatly improved, especially for accidental faults, corresponding data can be recorded in real time according to the fault codes, the accuracy of fault analysis is improved, the data uploading amount is reduced, and the quality of the data is ensured.
In a first aspect, the present application provides an on-board diagnostic method, comprising the steps of:
extracting a can network signal when a fault occurs to obtain fault code information;
acquiring an internal signal of the controller according to the fault code information;
and carrying out vehicle-mounted diagnosis according to the internal signal of the controller.
In one possible implementation, the can network signal when the fault occurs is uploaded;
and analyzing according to the message indicating the fault code in the uploaded can network signal and a preset rule to obtain fault code information.
In one possible implementation, the can network signal is compressed when a failure occurs.
In one possible embodiment, the fault code meaning is queried in a fault database according to the resolved fault code name to obtain an internal signal of the fault code in the controller.
In one possible implementation mode, different preset times are set independently for recording according to different types of fault signals in the controller, and the different types of fault signals in the controller are recorded;
and uploading different types of fault signals inside the controller to determine a diagnosis scheme.
In a possible implementation mode, fault messages are captured by receiving fault signals in different forms;
the different forms of fault signals include: can message, fault status flag bit, concrete fault code.
In a second aspect, the present application provides an on-board diagnostic apparatus comprising:
the extracting unit is used for extracting the can network signal when the fault occurs to obtain fault code information;
the acquisition unit is used for acquiring the internal signal of the controller according to the fault code information;
and the diagnosis unit is used for carrying out vehicle-mounted diagnosis according to the internal signal of the controller.
In a possible implementation, the extraction unit is further configured to: uploading the can network signal when the fault occurs; and analyzing according to the message indicating the fault code in the uploaded can network signal and a preset rule to obtain fault code information.
In a third aspect, the present application further provides an electronic device, including: a processor; a memory having computer readable instructions stored thereon which, when executed by the processor, implement the method of any of the first aspects.
In a fourth aspect, the present application also provides a computer readable program medium storing computer program instructions which, when executed by a computer, cause the computer to perform the method of any of the first aspects.
According to the vehicle-mounted diagnosis method, the vehicle-mounted diagnosis device, the electronic equipment and the readable storage medium, the can network signal when a fault occurs is extracted to obtain fault code information; acquiring an internal signal of the controller according to the fault code information; according to on-vehicle diagnosis is carried out to the inside signal of controller, resolves through the trouble code that snatchs, when confirming the inside signal of trouble code, records and uploads the trouble code signal of different types through the time of predetermineeing, very big improvement investigation efficiency, especially to the contingency trouble, can be according to the real-time corresponding data of record of trouble code, improved failure analysis's accuracy, reduce the data volume of uploading to the quality of assurance data.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a flow chart of an on-board diagnostic method according to the present embodiment;
fig. 2 is a flowchart of step S11 of the on-board diagnosis method according to the present embodiment;
fig. 3 is a flowchart of step S31 of the on-board diagnosis method according to the present embodiment;
FIG. 4 is a schematic diagram of an on-board diagnostic apparatus according to the present embodiment;
FIG. 5 is a schematic diagram of an on-board diagnostic electronic device provided in an embodiment of the present application;
fig. 6 is a schematic diagram of an on-board diagnostic computer readable program medium provided in an embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.
Referring to fig. 1, fig. 1 is a flowchart illustrating an on-board diagnosis method according to the present invention, and as shown in fig. 1, the on-board diagnosis method includes the steps of:
step S1: and extracting the can network signal when the fault occurs to obtain fault code information.
Specifically, when a vehicle breaks down in the running process, the controller sends a fault signal generated in the running process of the vehicle, when a TBOX (vehicle networking system) receives the fault signal sent by the controller, an information collection process is triggered, namely data capture is started, then the TBOX (vehicle networking system) captures a can network signal at the occurrence moment of the received fault signal, namely a can message at the occurrence moment of the fault is captured, and the can message at the occurrence moment of the fault is captured and then uploaded.
Analyzing the message of the indicated fault code in the can message at the fault occurrence time according to the uploaded can message at the fault occurrence time according to a preset rule, determining the fault code according to the fault code analyzed by the preset rule, and acquiring fault code information.
In one embodiment, when a vehicle has a fault, when a TBOX (vehicle networking system) receives a fault signal sent by a controller, a can network signal at the moment of the occurrence of the received fault signal is captured, the captured fault signal is uploaded, and according to an uploaded can message at the moment of the occurrence of the fault, a message indicating a fault code in the can message at the moment of the occurrence of the fault is analyzed according to a preset rule to obtain fault code information.
In one embodiment, when a vehicle has a fault, when a TBOX (vehicle networking system) receives a fault signal sent by a controller, a can network signal at the time of the occurrence of the received fault signal is captured, and fault data needs to be compressed before the captured fault signal is uploaded, so as to reduce a memory.
In one embodiment, after the controller sends the fault signal, the TBOX (vehicle networking system) captures all messages of the can bus where the controller reporting the fault code at the time of reporting the fault code receives the fault signal sent by the controller.
In an embodiment, when a vehicle has a fault during driving, the controller sends a fault signal generated during driving, where the fault signal sent by the controller may be sent in a can message line form, a fault state flag bit form, or a specific fault code round-by-round sending form.
In an embodiment, a TBOX (vehicle networking system) receives fault signals of different forms sent by a controller, and captures fault messages, wherein the fault signals may be received in a can message form, received in a fault state flag form, or sent in turn by a specific fault code.
Step S2: and acquiring the internal signal of the controller according to the fault code information.
Specifically, according to the uploaded can message at the time of the fault occurrence, the message indicating the fault code in the can message at the time of the fault occurrence is analyzed according to the preset rule, and fault code information is obtained according to the fault code analyzed by the preset rule. And inquiring the meaning of the fault code in a fault database according to the acquired fault code information through the fault code name, and acquiring the important internal variable for diagnosing the fault code according to the meaning of the fault code inquired in the fault database.
In one embodiment, when a vehicle has a fault, when a TBOX (vehicle networking system) receives a fault signal sent by a controller, a can network signal at the time of the occurrence of the received fault signal is captured, the captured fault signal is uploaded, according to an uploaded can message at the time of the occurrence of the fault, a message indicating a fault code in the can message at the time of the occurrence of the fault is analyzed according to a preset rule to obtain fault code information, the meaning of the fault code is inquired in a fault database through the name of the fault code according to the obtained fault code information, an important internal variable for fault code diagnosis is obtained according to the meaning of the fault code inquired in the fault database, and internal signals related to each fault code are defined to improve the accuracy of fault analysis.
Step S3: and carrying out vehicle-mounted diagnosis according to the internal signal of the controller.
Specifically, the acquired fault code information is queried for the meaning of the fault code in a fault database through the name of the fault code, important internal variables for fault code diagnosis are acquired according to the query of the fault code meaning in the fault database, a calibration communication protocol supported by a controller, generally an xcp protocol can be used for reading internal signals of the controller, different times are required to be set independently for recording due to different types of fault signals in the controller, the fault signals of different types in the controller are recorded, the recorded fault signals of different types are uploaded, a technician analyzes the fault signals on a cloud platform according to the uploaded fault signals, and finally a fault maintenance scheme is determined.
In one embodiment, the important internal variables for fault code diagnosis are acquired, a calibration communication protocol supported by the controller, generally an xcp protocol, is used to read internal signals of the controller, different times are independently set for recording according to different types of fault signals in the controller, the recorded fault signals of different types in the controller are recorded, and the recorded fault signals of different types are uploaded to determine a maintenance scheme.
In one embodiment, the internal signals of the controller are read through a calibration communication protocol supported by the controller, wherein the internal signals of the controller are read and control internal variables related to fault codes, and the purpose is to confirm the reason of reporting the fault codes.
In one embodiment, the internal signals of the controller are read through a calibration communication protocol supported by the controller, different time is independently set for recording, and different types of fault signals in the controller are recorded, so that the required internal data can be recorded through independently set time due to the fact that the time for recording the internal data of each fault code is inconsistent.
Optionally, a vehicle-mounted diagnosis method specifically includes that when a vehicle has a fault in a driving process, a controller sends a fault signal generated in the driving process of the vehicle, when a TBOX (vehicle networking system) receives the fault signal sent by the controller, an information collection process is triggered, that is, data capture is started, and then the TBOX (vehicle networking system) captures a can network signal at the time of the occurrence of the received fault signal, that is, captures a can message at the time of the occurrence of the fault, and uploads the captured can message at the time of the occurrence of the fault.
Analyzing the message of the indicated fault code in the can message at the fault occurrence time according to a preset rule according to the uploaded can message at the fault occurrence time, and acquiring fault code information according to the fault code analyzed by the preset rule. And inquiring the meaning of the fault code in a fault database according to the acquired fault code information through the fault code name, and acquiring the important internal variable for diagnosing the fault code according to the meaning of the fault code inquired in the fault database.
The method comprises the steps that the fault code information is obtained, the fault code meaning is inquired in a fault database through the fault code name, important internal variables for fault code diagnosis are obtained according to the fault code meaning inquired in the fault database, the internal signals of the controller can be read through a calibration communication protocol supported by the controller, generally xcp protocol, different time needs to be set independently for recording due to different types of the fault signals in the controller, the fault signals of different types in the controller are recorded, the recorded fault signals of different types are uploaded, a technician analyzes according to the uploaded fault signals on a cloud platform, and finally the fault maintenance scheme is determined.
Referring to fig. 2, fig. 2 is a flowchart illustrating a step S11 of an on-board diagnosis method according to the present invention, and as shown in fig. 2, the step includes:
and step S11, uploading the can network signal when the fault occurs.
Specifically, when a vehicle has a fault, when a TBOX (vehicle networking system) receives a fault signal sent by a controller, the controller captures a can network signal at the time of occurrence of the received fault signal, and uploads the captured fault signal. Wherein the captured fault signals include: can message, fault status flag bit, concrete fault code.
When a TBOX (vehicle networking system) receives a fault signal sent by a controller, wherein the received fault signal comprises: and capturing the can network signal at the occurrence moment of the received fault signal, and compressing fault data before uploading the captured fault signal to reduce the memory. The received fault signal may be received in the form of can message line, may be received in the form of fault status flag bit, and may also be transmitted in turn in the form of specific fault code.
And step S12, analyzing according to the message indicating the fault code in the uploaded can network signal and a preset rule to obtain fault code information.
Specifically, when a TBOX (vehicle networking system) receives a fault signal sent by a controller, a can network signal at the occurrence time of the received fault signal is captured and the captured fault signal is uploaded, a message indicating a fault code in the can message at the occurrence time of the fault is analyzed according to a preset rule according to the uploaded can message at the occurrence time of the fault, the fault code is determined according to the analyzed fault code of the preset rule, and fault code information is acquired.
Referring to fig. 3, fig. 3 is a flowchart illustrating a step S31 of an on-board diagnosis method according to the present invention, and as shown in fig. 3, the step includes:
step S31: according to the fault signals of different types in the controller, different preset time is independently set for recording, and the fault signals of different types in the controller are recorded.
Specifically, the fault signals in the controller are read through a calibration communication protocol supported by the controller, and different time needs to be set independently for recording due to different types of the fault signals in the controller, and the fault signals of different types in the controller are recorded.
Step S32: and uploading different types of fault signals inside the controller to determine a diagnosis scheme.
Optionally, after the fault signals of different types in the controller are recorded, because the time for recording the internal data of each fault code is inconsistent, the required internal data is recorded by independently setting time, and the recorded fault signals of different types are uploaded to determine the maintenance scheme of the vehicle fault.
Referring to fig. 4, fig. 4 is a schematic diagram of an on-board diagnostic apparatus according to the present invention, and as shown in fig. 4, the on-board diagnostic apparatus includes:
the extracting unit 401 is configured to extract the can network signal when the fault occurs to obtain fault code information.
An obtaining unit 402, configured to obtain the controller internal signal according to the fault code information.
And a diagnosis unit 403 for performing vehicle-mounted diagnosis according to the controller internal signal.
Further, in an embodiment, the extracting unit 401 is further configured to upload the can network signal when the fault occurs; and analyzing according to the message indicating the fault code in the uploaded can network signal and a preset rule to obtain fault code information.
Further, in an embodiment, the obtaining unit 402 is further configured to query the fault code meaning in the fault database according to the parsed fault code name, so as to obtain the internal signal of the fault code in the controller.
Further, in an embodiment, the diagnosis unit 403 is further configured to separately set different preset times for recording according to different types of fault signals inside the controller, and record the different types of fault signals inside the controller; and uploading different types of fault signals inside the controller to determine a diagnosis scheme.
An electronic device 500 according to this embodiment of the invention is described below with reference to fig. 5. The electronic device 500 shown in fig. 4 is only an example and should not bring any limitation to the functions and the scope of use of the embodiments of the present invention.
As shown in fig. 5, the electronic device 500 is in the form of a general purpose computing device. The components of the electronic device 500 may include, but are not limited to: the at least one processing unit 510, the at least one memory unit 520, and a bus 530 that couples various system components including the memory unit 520 and the processing unit 510.
Wherein the storage unit stores program code that is executable by the processing unit 510 to cause the processing unit 510 to perform steps according to various exemplary embodiments of the present invention as described in the section "example methods" above in this specification.
The storage unit 520 may include readable media in the form of volatile storage units, such as a random access memory unit (RAM)521 and/or a cache memory unit 522, and may further include a read only memory unit (ROM) 523.
The storage unit 520 may also include a program/utility 524 having a set (at least one) of program modules 525, such program modules 525 including, but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which, or some combination thereof, may comprise an implementation of a network environment.
The electronic device 500 may also communicate with one or more external devices 500 (e.g., keyboard, pointing device, bluetooth device, etc.), with one or more devices that enable a user to interact with the electronic device 500, and/or with any devices (e.g., router, modem, etc.) that enable the electronic device 500 to communicate with one or more other computing devices. Such communication may occur via input/output (I/O) interfaces 550. Also, the electronic device 500 may communicate with one or more networks (e.g., a Local Area Network (LAN), a Wide Area Network (WAN), and/or a public network, such as the internet) via the network adapter 560. As shown, the network adapter 560 communicates with the other modules of the electronic device 500 over the bus 530. It should be appreciated that although not shown in the figures, other hardware and/or software modules may be used in conjunction with the electronic device 500, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems, among others.
Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein may be implemented by software, or by software in combination with necessary hardware. Therefore, the technical solution according to the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a usb disk, a removable hard disk, etc.) or on a network, and includes several instructions to enable a computing device (which may be a personal computer, a server, a terminal device, or a network device, etc.) to execute the method according to the embodiments of the present disclosure.
According to an aspect of the present disclosure, there is also provided a computer-readable storage medium having stored thereon a program product capable of implementing the above-described method of the present specification. In some possible embodiments, aspects of the invention may also be implemented in the form of a program product comprising program code means for causing a terminal device to carry out the steps according to various exemplary embodiments of the invention described in the above section "exemplary methods" of the present description, when said program product is run on the terminal device.
Referring to fig. 6, a program product 600 for implementing the above method according to an embodiment of the present invention is described, which may employ a portable compact disc read only memory (CD-ROM) and include program code, and may be run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited in this regard and, in the present document, a readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The program product may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium include: an electrical connection having one or more wires, a portable disk, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
A computer readable signal medium may include a propagated data signal with readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A readable signal medium may also be any readable medium that is not a readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing. Program code for carrying out operations for aspects of the present invention may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server. In the case of a remote computing device, the remote computing device may be connected to the user computing device through any kind of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or may be connected to an external computing device (e.g., through the internet using an internet service provider).
Furthermore, the above-described figures are merely schematic illustrations of processes involved in methods according to exemplary embodiments of the invention, and are not intended to be limiting. It will be readily understood that the processes shown in the above figures are not intended to indicate or limit the chronological order of the processes. In addition, it is also readily understood that these processes may be performed synchronously or asynchronously, e.g., in multiple modules.
In summary, according to the vehicle-mounted diagnosis method, the vehicle-mounted diagnosis device, the electronic device and the readable storage medium, the can network signal when the fault occurs is extracted to obtain the fault code information; acquiring an internal signal of the controller according to the fault code information; according to on-vehicle diagnosis is carried out to the inside signal of controller, resolves through the trouble code that snatchs, when confirming the inside signal of trouble code, records and uploads the trouble code signal of different types through the time of predetermineeing, very big improvement investigation efficiency, especially to the contingency trouble, can be according to the real-time corresponding data of record of trouble code, improved failure analysis's accuracy, reduce the data volume of uploading to the quality of assurance data.
The foregoing are merely exemplary embodiments of the present application and no attempt is made to show structural details of the invention in more detail than is necessary for the fundamental understanding of the art, the description taken with the drawings making apparent to those skilled in the art how the several forms of the invention may be embodied in practice with the teachings of the invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
1. An on-board diagnostic method, comprising:
extracting a can network signal when a fault occurs to obtain fault code information;
acquiring an internal signal of the controller according to the fault code information;
and carrying out vehicle-mounted diagnosis according to the internal signal of the controller.
2. The on-board diagnosis method according to claim 1, wherein the extracting the can network signal when the fault occurs to obtain the fault code information comprises:
uploading the can network signal when the fault occurs;
and analyzing according to the message indicating the fault code in the uploaded can network signal and a preset rule to obtain fault code information.
3. The on-board diagnosis method according to claim 2, wherein before uploading the can network signal when the fault occurs, the method further comprises:
and compressing the can network signal when the fault occurs.
4. The vehicle-mounted diagnosis method according to claim 1, wherein the obtaining of the controller internal signal according to the fault code information comprises:
and inquiring the meaning of the fault code in a fault database according to the name of the analyzed fault code so as to obtain an internal signal of the fault code in the controller.
5. The on-board diagnosis method according to claim 1, wherein the on-board diagnosis based on the controller internal signal comprises:
according to different types of fault signals in the controller, different preset time is independently set for recording, and the different types of fault signals in the controller are recorded;
and uploading different types of fault signals inside the controller to determine a diagnosis scheme.
6. The on-board diagnostic method of claim 1, comprising:
capturing a fault message by receiving fault signals of different forms;
the different forms of fault signals include: can message, fault status flag bit, concrete fault code.
7. An on-board diagnostic device, characterized by comprising:
the extracting unit is used for extracting the can network signal when the fault occurs to obtain fault code information;
the acquisition unit is used for acquiring the internal signal of the controller according to the fault code information;
and the diagnosis unit is used for carrying out vehicle-mounted diagnosis according to the internal signal of the controller.
8. The on-board diagnostic apparatus according to claim 7, characterized in that the extraction unit is further configured to:
uploading the can network signal when the fault occurs;
and analyzing according to the message indicating the fault code in the uploaded can network signal and a preset rule to obtain fault code information.
9. An electronic device, characterized in that the electronic device comprises:
a processor;
a memory having stored thereon computer readable instructions which, when executed by the processor, implement the method of any of claims 1 to 6.
10. A computer-readable program medium, characterized in that it stores computer program instructions which, when executed by a computer, cause the computer to perform the method according to any one of claims 1 to 6.
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