CN114779740A - Vehicle fault remote diagnosis system and method - Google Patents
Vehicle fault remote diagnosis system and method Download PDFInfo
- Publication number
- CN114779740A CN114779740A CN202210428546.1A CN202210428546A CN114779740A CN 114779740 A CN114779740 A CN 114779740A CN 202210428546 A CN202210428546 A CN 202210428546A CN 114779740 A CN114779740 A CN 114779740A
- Authority
- CN
- China
- Prior art keywords
- diagnosis
- vehicle
- message
- mcu
- instruction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004171 remote diagnosis Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000003745 diagnosis Methods 0.000 claims abstract description 149
- 238000012545 processing Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 20
- 230000006870 function Effects 0.000 claims description 30
- 238000004806 packaging method and process Methods 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000002405 diagnostic procedure Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0259—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the response to fault detection
- G05B23/0262—Confirmation of fault detection, e.g. extra checks to confirm that a failure has indeed occurred
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24065—Real time diagnostics
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
The invention discloses a vehicle fault remote diagnosis system and a vehicle fault remote diagnosis method, wherein the system comprises a cloud end, a vehicle-mounted terminal in communication connection with the cloud end, and at least one ECU in communication connection with the vehicle-mounted terminal; the cloud end is used for sending a diagnosis instruction and processing diagnosis data fed back by the vehicle-mounted terminal; the vehicle-mounted terminal is used for acquiring diagnostic data of the vehicle and sending the acquired diagnostic data to the cloud; the ECU is used for acquiring the diagnostic data of the vehicle in real time and feeding back a diagnostic message to the vehicle-mounted terminal; the vehicle-mounted terminal comprises an MCU and a 4G module in communication connection with the MCU, wherein the MCU is used for analyzing the diagnosis instruction, converting the diagnosis instruction into a CAN message format, receiving the diagnosis message corresponding to the ECU, and sending the diagnosis message to the cloud end through the 4G module. The invention solves the limitation of the conventional remote diagnosis function, improves the diagnosis efficiency and reduces the diagnosis cost.
Description
Technical Field
The invention relates to the technical field of automobile fault diagnosis, in particular to a vehicle fault remote diagnosis system and a vehicle fault remote diagnosis method.
Background
With the development of economic society, the quantity of automobiles owned is increasing, and the failure diagnosis of the automobiles is becoming more mature. The development of the automobile fault diagnosis technology enables the processing speed of automobile faults to be faster, and in the existing automobile fault diagnosis technology, only a single function can be realized, the state of a vehicle cannot be monitored in real time, and fault diagnosis can be performed only when a vehicle driver actively performs fault detection.
For example, the invention patent with publication number CN113325830A discloses a remote diagnosis method for an automobile diagnostic apparatus, which sends a corresponding diagnosis instruction on a bus through a vehicle-mounted internet terminal TBOX, acquires a diagnosis response given by a module and uploads the diagnosis response to a remote diagnosis system; the TBOX analyzes the content of the server, analyzes the content into a corresponding CAN diagnosis command, sends the CAN diagnosis command to a CAN bus, receives the diagnosis reply content of the module, uploads the diagnosis reply content to a remote diagnosis system, and the remote diagnosis system analyzes the original message according to the UDS protocol. According to the invention, the message analysis part is processed in the cloud server according to the UDS protocol, the design has limitation, the cloud end cannot issue complex diagnosis instructions, and the diagnosis is possibly failed because the instructions are not issued in time due to the problem of network delay.
The utility model with publication number CN209946704U discloses a cloud diagnosis system for dealing with vehicle faults, which comprises a vehicle-mounted terminal, a cloud server and a mobile client, wherein all the components are communicated through a 4G network; the vehicle-mounted terminal is used for acquiring vehicle information, transmitting acquired data to the cloud server through the 4G network, storing the acquired data into the TF card and attaching a timestamp; the cloud server is used for logging in, logging out, receiving data, sending data, storing the data and sending the data to the mobile client; the mobile client is used for receiving data sent by the cloud server, and the user receives information and operates the information at the mobile client. The utility model discloses a patent only supports to read the fault code, and at car electronization degree higher and higher today, the single fault code that reads can not satisfy increasing demand.
Nowadays, the conventional vehicle diagnosis is generally that the vehicle is driven to a 4S store and is diagnosed by a fault diagnosis instrument, and a driver actively goes to the 4S store to perform maintenance only when an obvious fault occurs. And the vehicle remote online diagnosis system can remotely diagnose the vehicle fault online and inform a driver of the fault of the vehicle for timely maintenance. Therefore, it is important to design a multifunctional, efficient and highly extensible remote diagnostic procedure diagnostic system.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a vehicle fault remote diagnosis system and method, the limitation of the conventional remote diagnosis function is solved, the diagnosis efficiency is improved, and the diagnosis cost is reduced.
In order to solve the technical problem, the invention adopts the following technical scheme:
a vehicle fault remote diagnosis system comprises a cloud end, a vehicle-mounted terminal and at least one ECU, wherein the vehicle-mounted terminal is in communication connection with the cloud end, and the ECU is in communication connection with the vehicle-mounted terminal;
the cloud end is used for sending a diagnosis instruction and processing diagnosis data fed back by the vehicle-mounted terminal;
the vehicle-mounted terminal is used for acquiring the diagnosis data of the vehicle and sending the acquired diagnosis data to the cloud end;
the ECU is used for acquiring the diagnostic data of the vehicle in real time and feeding back a diagnostic message to the vehicle-mounted terminal;
the vehicle-mounted terminal comprises an MCU and a 4G module in communication connection with the MCU, wherein the MCU is used for analyzing the diagnosis instruction, converting the diagnosis instruction into a CAN message format, receiving the diagnosis message corresponding to the ECU, and sending the diagnosis message to the cloud end through the 4G module.
Further, the MCU comprises a remote diagnosis APP layer, a remote diagnosis NL layer and a DRIVER layer;
the remote diagnosis APP layer is used for analyzing and processing diagnosis instructions of the cloud;
the remote diagnosis NL layer is used for converting a data packet sent by the remote diagnosis APP layer into a CAN message format, receiving an original message on a CAN network, packaging, unpacking and transmitting back to the remote diagnosis APP layer;
and the DRIVER layer is used for processing the CAN message received by the DRIVER and packaging the CAN message into a uniform interface for the NL layer to use.
Furthermore, the remote diagnosis APP layer is provided with a plurality of UDS service functions for processing corresponding UDS diagnosis services and matched UDS service function background tasks.
Further, the MCU and the 4G module are connected to each other through UART (Universal Asynchronous Receiver/Transmitter) or SPI (Serial Peripheral Interface) communication.
Furthermore, the vehicle-mounted terminal is in communication connection with the ECU through a GW, and the GW is used for forwarding the CAN messages so as to achieve data forwarding.
Further, the MCU and the GW, and the GW and the ECU are connected by CAN (Controller Area Network) communication.
The invention also provides a vehicle fault remote diagnosis method, which uses the vehicle fault remote diagnosis system and is characterized by comprising the following steps:
s1, the vehicle-mounted terminal receives the diagnosis instruction of the cloud end through the 4G module and then forwards the diagnosis instruction to the MCU;
s2, MCU sends down diagnosis order to CAN network, and transmits to corresponding ECU through GW;
s3, the ECU receives the diagnosis instruction and sends out a diagnosis message;
s4, the MCU receives the diagnosis message on the CAN network and sends the message to the 4G module;
the S5 and 4G modules receive the diagnosis data sent by the MCU and forward the diagnosis data to the cloud;
and S6, processing the fed back diagnosis data by the cloud.
Further, in step S2, the MCU issues the diagnosis command to the CAN network includes the following steps:
s21, the MCU circularly detects the diagnosis instruction queue, when receiving the diagnosis instruction sent by the 4G module, the MCU carries out enqueue operation, and executes the step S22;
s22, the MCU performs dequeue operation, stores the current diagnostic instruction to be processed, judges whether the vehicle meets the diagnostic condition by reading the CAN network signal, if so, executes S23, otherwise, feeds back that the diagnostic condition does not meet the information and sends the information to the 4G module;
and S23, calling the corresponding UDS service function, converting the UDS service function into a CAN message format, and sending the CAN message format to a CAN network.
Further, in step S4, the step of receiving the diagnosis message on the CAN network and sending the diagnosis message to the 4G module by the MCU includes:
s41, executing S42 when the cloud diagnosis instruction is function addressing, otherwise executing S43;
s42, waiting for 5 seconds, if receiving the diagnosis message fed back by the corresponding ECU, waiting for 10 seconds, then transmitting the received original diagnosis message packet to the 4G module, otherwise, feeding back the overtime information of the corresponding ECU to the 4G module;
s43, waiting for 5 seconds, executing S44 if a diagnosis message fed back by the corresponding ECU is received, and otherwise feeding back overtime information of the corresponding ECU to the 4G module;
and S44, judging whether the cloud diagnosis instruction belongs to a specific UDS service function, if so, ending the processing flow, and otherwise, transmitting a corresponding ECU feedback message to the 4G module.
Compared with the prior art, the invention has the beneficial effects that:
1. the diagnosis instruction (single diagnosis instruction or a plurality of diagnosis instructions) is issued to the 4G module through the cloud, the diagnosis instruction is forwarded to the MCU by the 4G module, the MCU caches the diagnosis instruction by using a data structure of a queue, a software hierarchical structure is adopted, the diagnosis instruction is sequentially analyzed to call a corresponding UDS service function in a remote diagnosis APP layer, the analyzed data is issued to the UDS network layer, the diagnosis instruction is sent to the CAN network after being processed, and then CAN messages fed back by the corresponding ECU (controller) are returned to the cloud end layer by layer. Through the process, the cloud can read the fault codes and the state codes of all the ECUs (controllers) of the vehicle and modify the data stored in the local parts of all the ECUs, so that the limitation of the conventional remote diagnosis function is solved, the diagnosis efficiency is improved, and the diagnosis cost is reduced.
Drawings
For purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made in detail to the present invention as illustrated in the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the overall structure of a vehicle fault remote diagnosis system according to the present invention;
FIG. 2 is a flow chart of the vehicle fault remote diagnosis system of the present invention;
FIG. 3 is a flow chart of a method for remote diagnosis of vehicle faults according to the present invention;
FIG. 4 is a flowchart of the MCU of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, the present embodiment provides a vehicle fault remote diagnosis system, which includes a cloud, a vehicle-mounted terminal connected in communication with the cloud, and at least one Electronic Control Unit (ECU) connected in communication with the vehicle-mounted terminal;
the cloud end is used for sending a diagnosis instruction and processing diagnosis data fed back by the vehicle-mounted terminal;
the vehicle-mounted terminal is used for acquiring the diagnosis data of the vehicle and sending the acquired diagnosis data to the cloud end;
the ECU is used for acquiring the diagnostic data of the vehicle in real time and feeding back a diagnostic message to the vehicle-mounted terminal;
the vehicle-mounted terminal comprises an MCU (Micro Controller Unit) and a 4G module in communication connection with the MCU, wherein the MCU is used for analyzing the diagnosis instruction, converting the diagnosis instruction into a CAN message format, receiving the diagnosis message corresponding to the ECU, and sending the diagnosis message to the cloud end through the 4G module.
Referring to fig. 2, in the system, a diagnosis instruction (a single diagnosis instruction or a plurality of diagnosis instructions) is issued to a 4G module through a cloud, the 4G module forwards the diagnosis instruction to an MCU, the MCU caches the diagnosis instruction by using a data structure of a queue, a software hierarchical structure is adopted, the diagnosis instruction is sequentially analyzed to call a corresponding UDS service function in a remote diagnosis APP layer, the analyzed data is issued to a UDS network layer, the diagnosis instruction is sent to a CAN network after being processed, and then a CAN message fed back by a corresponding ECU (controller) is returned to the cloud layer by layer.
In specific implementation, the MCU comprises a remote diagnosis APP layer, a remote diagnosis NL layer and a DRIVER layer;
the remote diagnosis APP layer is used for analyzing and processing diagnosis instructions of the cloud; a state machine for managing and processing the diagnosis instruction is arranged in the layer, the state machine is in an idle state at ordinary times, and the next state is entered after the diagnosis instruction of the cloud end forwarded by the 4G module is received.
The remote diagnosis NL layer is integrated with codes of a network layer in a UDS protocol stack and used for converting data sent by the remote diagnosis APP layer into a CAN message format, receiving an original message on a CAN network, packaging and unpacking the original message and transmitting the original message back to the remote diagnosis APP layer; unpacking, removing the frame control head of the original CAN message, only keeping effective data, facilitating the simplification of code logic of the remote diagnosis APP layer through the remote diagnosis NL layer, facilitating the maintenance of codes and improving the portability.
And the DRIVER layer is used for processing the drive and receiving the CAN message and packaging the CAN message into a unified interface for the remote diagnosis NL layer.
In specific implementation, the remote diagnosis APP layer has a plurality of UDS service functions for processing corresponding UDS diagnosis services, and the matched UDS service functions process background tasks (periodic polling execution). And UDS service functions such as 10 services, 27 services, 3E services, 19 services, 22 services, 11 services, 14 services, 2E services and the like, wherein each service corresponds to a diagnosis instruction of a vehicle, and specific treatment can be performed on a specific service through a function pointer list, so that the expandability is improved.
In specific implementation, the MCU and the 4G module are connected through UART (Universal Asynchronous Receiver/Transmitter, Asynchronous transceiver Transmitter) or SPI (Serial Peripheral Interface) communication.
In specific implementation, the vehicle-mounted terminal is in communication connection with the ECU through a Gateway (GW), and the GW is used for forwarding the CAN packet to implement data forwarding.
In specific implementation, the MCU, the GW, and other ECUs on the vehicle are connected by a CAN (Controller Area Network) in communication.
Referring to fig. 3, the present invention further provides a vehicle fault remote diagnosis method, which uses the vehicle fault remote diagnosis system described above, and includes the following steps:
s1, the vehicle-mounted terminal receives the diagnosis instruction of the cloud end through the 4G module and then forwards the diagnosis instruction to the MCU;
s2, the MCU sends a diagnosis instruction to the CAN network, and the diagnosis instruction is received by the GW and forwarded to the corresponding ECU;
s3, the ECU receives the diagnosis instruction and sends out a diagnosis message;
s4, the MCU receives the diagnosis message on the CAN network and sends the message to the 4G module;
the S5 and 4G modules forward the diagnosis data sent by the MCU and forward the diagnosis data to the cloud;
and S6, processing the fed back diagnosis data by the cloud.
Referring to fig. 4, in a specific implementation, in step S2, the step of the MCU issuing the diagnosis instruction to the CAN network includes the following steps:
s21, the MCU circularly detects the diagnosis instruction queue, when receiving the diagnosis instruction sent by the 4G module, performs enqueue operation, and executes the step S22;
s22, the MCU carries out dequeue operation, stores the current diagnostic instruction to be processed, judges whether the vehicle meets the diagnostic condition by reading the CAN network signal, and if the signal needing to be judged, such as the vehicle speed, the engine running state and the like, meets the diagnostic condition, S23 is executed, otherwise, the diagnostic condition unsatisfied information is fed back and sent to the 4G module;
and S23, calling a corresponding UDS service function according to the diagnosis instruction, converting the UDS service function into a CAN message format through a remote diagnosis NL layer, and issuing the CAN message format onto a CAN network.
In step S4, the MCU receives the diagnosis message from the CAN network and sends the message to the 4G module, which includes the following steps:
s41, executing S42 when the cloud diagnosis instruction is function addressing, otherwise executing S43;
s42, waiting for 5 seconds, if the diagnosis message fed back by the corresponding ECU is received, waiting for 10 seconds, transmitting the received original diagnosis message packet to the 4G module, otherwise, feeding back overtime information of the corresponding ECU to the 4G module;
s43, waiting for 5 seconds, executing S44 if the diagnosis message fed back by the corresponding ECU is received, otherwise feeding back overtime information of the corresponding ECU to the 4G module;
and S44, judging whether the cloud diagnosis instruction belongs to a specific UDS service function, if so, ending the processing flow, and otherwise, transmitting a corresponding ECU feedback message to the 4G module.
According to the method, a single diagnosis instruction or a plurality of diagnosis instructions are issued to the MCU by the cloud, the vehicle-mounted terminal receives the diagnosis instruction of the cloud through the 4G module and then forwards the diagnosis instruction to the MCU, and a UDS service function and a background function corresponding to the UDS service function are used for carrying out special processing on the UDS service function and the background function in the remote diagnosis APP layer aiming at the specific diagnosis instruction.
For example, the cloud issues the diagnosis instruction of functional addressing, because the MCU has limited memory resources, the remote diagnosis NL layer can only process the diagnosis message of one ECU (controller) within a period of time, and issues the functional addressing, and there are multiple ECUs feeding back the diagnosis message, which requires special processing. After the functional addressing message is issued, if no feedback message is received within 5s, the cloud service diagnosis timeout is replied; when receiving the feedback message, the MCU directly sends a fixed flow control frame when receiving the first frame of the CAN message, does not perform package processing, and records the time for 10s again, and then transmits the original messages received in the period of time back to the cloud for processing.
For example, the diagnosis instruction issued by the cloud is a 2E service, when the safety level of the ECU is required, the cloud firstly caches the diagnosis instructions in a queue of the MCU in a mode of issuing the diagnosis instructions simultaneously, the diagnosis instructions are executed one by one, the safety constants of the ECUs are issued by the cloud, the MCU calls a safety encryption algorithm to generate a KEY after receiving the diagnosis instructions, so that the safety level of the opposite-end controller is unlocked, the corresponding UDS service is realized, and the limitation of the conventional remote diagnosis function is solved.
Finally, it is to be understood that the above embodiments are illustrative only and not restrictive, and that various changes in form and details may be made therein by those skilled in the art while having described the present invention with reference to the preferred embodiments thereof. Obvious changes which are introduced into the technical scheme of the invention still fall into the protection scope of the invention.
Claims (9)
1. The vehicle fault remote diagnosis system is characterized by comprising a cloud end, a vehicle-mounted terminal and at least one ECU, wherein the vehicle-mounted terminal is in communication connection with the cloud end;
the cloud end is used for sending a diagnosis instruction and processing diagnosis data fed back by the vehicle-mounted terminal;
the vehicle-mounted terminal is used for acquiring the diagnosis data of the vehicle and sending the acquired diagnosis data to the cloud end;
the ECU is used for acquiring the diagnostic data of the vehicle in real time and feeding back a diagnostic message to the vehicle-mounted terminal;
the vehicle-mounted terminal comprises an MCU and a 4G module in communication connection with the MCU, wherein the MCU is used for analyzing a diagnosis instruction, converting the diagnosis instruction into a CAN message format, receiving a diagnosis message corresponding to the ECU and sending the diagnosis message to the cloud end through the 4G module.
2. The vehicle fault remote diagnosis system according to claim 1, wherein the MCU includes a remote diagnosis APP layer, a remote diagnosis NL layer and a DRIVER layer;
the remote diagnosis APP layer is used for analyzing and processing a diagnosis instruction of the cloud;
the remote diagnosis NL layer is used for converting a data packet sent by the remote diagnosis APP layer into a CAN message format, receiving an original message on a CAN network, packaging, unpacking and transmitting the original message back to the remote diagnosis APP layer;
and the DRIVER layer is used for processing the CAN message received by the DRIVER and packaging the CAN message into a uniform interface for the NL layer to use.
3. The vehicle fault remote diagnosis system according to claim 2, wherein the remote diagnosis APP layer has a plurality of UDS service functions for processing corresponding UDS diagnosis services.
4. The vehicle fault remote diagnosis system of claim 1, wherein the MCU and the 4G module are connected by UART or SPI communication.
5. The vehicle fault remote diagnosis system according to claim 1, wherein the vehicle-mounted terminal is in communication connection with the ECU through a GW, and the GW is used for forwarding the CAN message.
6. The vehicle fault remote diagnosis system according to claim 5, wherein the MCU and GW, and GW and ECU are connected by CAN communication.
7. A vehicle failure remote diagnosis method using a vehicle failure remote diagnosis system according to any one of claims 1 to 6, comprising the steps of:
s1, the vehicle-mounted terminal receives the diagnosis instruction of the cloud end through the 4G module and then forwards the diagnosis instruction to the MCU;
s2, the MCU sends a diagnosis instruction to the CAN network and forwards the diagnosis instruction to the corresponding ECU through the GW;
s3, the ECU receives the diagnosis instruction and sends out a diagnosis message;
s4, the MCU receives the diagnosis message on the CAN network and sends the message to the 4G module;
the S5 and 4G modules receive the diagnosis data sent by the MCU and forward the diagnosis data to the cloud;
and S6, processing the fed back diagnosis data by the cloud.
8. The method of claim 7, wherein in step S2, the step of the MCU issuing the diagnosis command to the CAN network comprises the following steps:
s21, the MCU circularly detects the diagnosis instruction queue, when receiving the diagnosis instruction sent by the 4G module, performs enqueue operation, and executes the step S22;
s22, the MCU performs dequeue operation, stores the current diagnostic instruction to be processed, judges whether the vehicle meets the diagnostic condition by reading the CAN network signal, if so, executes S23, otherwise, feeds back that the diagnostic condition does not meet the information and sends the information to the 4G module;
and S23, calling the corresponding UDS service function, converting the UDS service function into a CAN message format, and transmitting the CAN message format to a CAN network.
9. The method of claim 7, wherein in step S4, the MCU receives the diagnosis message from the CAN network, and sends the message to the 4G module, which comprises the following steps:
s41, executing S42 when the cloud diagnosis instruction is function addressing, otherwise executing S43;
s42, waiting for 5 seconds, if receiving the diagnosis message fed back by the corresponding ECU, waiting for 10 seconds, then transmitting the received original diagnosis message packet to the 4G module, otherwise, feeding back the overtime information of the corresponding ECU to the 4G module;
s43, waiting for 5 seconds, executing S44 if a diagnosis message fed back by the corresponding ECU is received, and otherwise feeding back overtime information of the corresponding ECU to the 4G module;
and S44, judging whether the cloud diagnosis instruction belongs to a specific UDS service function, if so, ending the processing flow, and otherwise, transmitting a corresponding ECU feedback message to the 4G module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428546.1A CN114779740A (en) | 2022-04-22 | 2022-04-22 | Vehicle fault remote diagnosis system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210428546.1A CN114779740A (en) | 2022-04-22 | 2022-04-22 | Vehicle fault remote diagnosis system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114779740A true CN114779740A (en) | 2022-07-22 |
Family
ID=82431492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210428546.1A Pending CN114779740A (en) | 2022-04-22 | 2022-04-22 | Vehicle fault remote diagnosis system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114779740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114995862A (en) * | 2022-08-03 | 2022-09-02 | 深圳市星卡软件技术开发有限公司 | Method, device and system for calling diagnosis module |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272649A (en) * | 2017-07-05 | 2017-10-20 | 东南（福建）汽车工业有限公司 | Malfunction remote diagnosis system and method |
| CN111443688A (en) * | 2020-04-04 | 2020-07-24 | 东风汽车集团有限公司 | Automobile diagnosis service network layer test system and method based on CAN bus |
| CN111901076A (en) * | 2020-09-03 | 2020-11-06 | 北京经纬恒润科技有限公司 | Vehicle diagnosis data forwarding method and device and gateway |
| CN112241156A (en) * | 2019-12-17 | 2021-01-19 | 北京新能源汽车技术创新中心有限公司 | Diagnostic method, apparatus, computer device and storage medium |
| US20210021497A1 (en) * | 2019-07-19 | 2021-01-21 | Deere & Company | Controller area network and connectivity health troubleshooting system |
| CN112543129A (en) * | 2020-11-27 | 2021-03-23 | 北京经纬恒润科技股份有限公司 | Queue depth confirmation method and system and message simulator |
| US20210226991A1 (en) * | 2020-01-17 | 2021-07-22 | Panasonic Intellectual Property Management Co., Ltd. | Information processing apparatus, information processing system, and recording medium |
-
2022
- 2022-04-22 CN CN202210428546.1A patent/CN114779740A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107272649A (en) * | 2017-07-05 | 2017-10-20 | 东南（福建）汽车工业有限公司 | Malfunction remote diagnosis system and method |
| US20210021497A1 (en) * | 2019-07-19 | 2021-01-21 | Deere & Company | Controller area network and connectivity health troubleshooting system |
| CN112241156A (en) * | 2019-12-17 | 2021-01-19 | 北京新能源汽车技术创新中心有限公司 | Diagnostic method, apparatus, computer device and storage medium |
| US20210226991A1 (en) * | 2020-01-17 | 2021-07-22 | Panasonic Intellectual Property Management Co., Ltd. | Information processing apparatus, information processing system, and recording medium |
| CN111443688A (en) * | 2020-04-04 | 2020-07-24 | 东风汽车集团有限公司 | Automobile diagnosis service network layer test system and method based on CAN bus |
| CN111901076A (en) * | 2020-09-03 | 2020-11-06 | 北京经纬恒润科技有限公司 | Vehicle diagnosis data forwarding method and device and gateway |
| CN112543129A (en) * | 2020-11-27 | 2021-03-23 | 北京经纬恒润科技股份有限公司 | Queue depth confirmation method and system and message simulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114995862A (en) * | 2022-08-03 | 2022-09-02 | 深圳市星卡软件技术开发有限公司 | Method, device and system for calling diagnosis module |
| CN114995862B (en) * | 2022-08-03 | 2022-11-01 | 深圳市星卡软件技术开发有限公司 | Method, device and system for calling diagnosis module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110758289B (en) | Sleep and wake-up method of in-vehicle hybrid network comprising vehicle-mounted Ethernet | |
| CN100504932C (en) | Method and device for a vehicle-related telematics service | |
| CN112947372A (en) | Remote diagnosis method based on active reporting of fault codes | |
| CN107272649A (en) | Malfunction remote diagnosis system and method | |
| CN108319254A (en) | A kind of collection method, car-mounted terminal and the log collecting server of automobile daily record | |
| CN114265386B (en) | SOA-based application service diagnosis architecture and method | |
| CN114253251A (en) | Vehicle remote diagnosis method and device, equipment connector and storage medium | |
| CN112068536A (en) | Universal self-adaptive vehicle remote diagnosis method, device and system | |
| CN114839959A (en) | Vehicle remote diagnosis method and system based on SOA (service oriented architecture) service | |
| CN114779740A (en) | Vehicle fault remote diagnosis system and method | |
| CN111885150A (en) | Ubiquitous power Internet of things multi-protocol adaptation system and method thereof | |
| CN108390863B (en) | Data processing method and device | |
| KR20120126873A (en) | System for Dynamic Analysis of Embedded Software of Vehicle using UDS | |
| CN113162942A (en) | Method for forwarding self-adaptive protocol | |
| CN111866020B (en) | Communication card and communication method | |
| CN111880510A (en) | New energy automobile data acquisition and transmission method and equipment | |
| CN101441476B (en) | Software implementing method of data link layer based on KWP2000 | |
| CN112905313A (en) | Task processing method and device and electronic equipment | |
| CN111736578B (en) | Dual-CPU controller-based UDS diagnosis method and device | |
| CN113311808A (en) | DTU-based vehicle-mounted networking terminal | |
| CN115291594B (en) | Remote diagnosis system and method for vehicle-mounted domain controller | |
| CN118244735A (en) | Data loss node positioning method, device, equipment and storage medium | |
| CN221151386U (en) | Automobile Ethernet message acquisition device | |
| CN117311329A (en) | Vehicle diagnosis method and system | |
| CN112968938B (en) | Diagnostic interaction system and interaction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |