CN112947382A - Automobile fault diagnosis system and method - Google Patents
Automobile fault diagnosis system and method Download PDFInfo
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- CN112947382A CN112947382A CN202110278814.1A CN202110278814A CN112947382A CN 112947382 A CN112947382 A CN 112947382A CN 202110278814 A CN202110278814 A CN 202110278814A CN 112947382 A CN112947382 A CN 112947382A
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- 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
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- 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
Abstract
The invention provides a high-reliability automobile fault diagnosis system and a diagnosis method, wherein the automobile fault diagnosis system consists of an on-board diagnosis box, an on-board ECU, an on-board fault solution storage unit and a mobile terminal, wherein the on-board fault solution storage unit is prestored with a fault solution corresponding to fault information; and the vehicle-mounted diagnosis box is respectively in communication connection with the vehicle-mounted ECU, the vehicle-mounted fault solution storage unit and the mobile terminal. The automobile fault diagnosis method adopts the automobile fault diagnosis system, and specifically comprises the following steps: A. the vehicle owner sends a fault diagnosis request instruction to the vehicle-mounted diagnosis box through the mobile terminal; B. after reading the fault information of the vehicle-mounted ECU, the vehicle-mounted diagnosis box searches a fault solution corresponding to the fault information in a vehicle-mounted fault solution storage unit according to the fault information and sends the fault solution to the mobile terminal; C. and the vehicle owner completes troubleshooting and maintenance of the fault according to the received fault solution.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to an automobile fault diagnosis system and method.
Background
With the development of the automobile industry, the requirement of consumers for after-sale automobiles is higher, and particularly when an automobile breaks down, the situation of the breakdown needs to be known at first time. At present, when an automobile breaks down, an owner generally drives the automobile to an after-sale service station for detection and maintenance, and the driving with the automobile breaks down can have certain potential safety hazards; in addition, if the vehicle cannot normally run due to a fault, the vehicle can only be pulled back to the after-sales service station by using the trailer, which causes the problems of inconvenient maintenance and high cost. The above failure detection methods are inefficient and often cause customer complaints.
With the continuous popularization of the internet of vehicles, automobile manufacturers have begun to develop the remote fault diagnosis of automobiles, and the existing remote fault diagnosis methods for automobiles are generally as follows: the vehicle-mounted diagnosis box sends the vehicle fault code to the cloud server, the cloud server automatically obtains a fault solution or obtains the fault solution after diagnosis by related technical personnel, and the fault solution is sent to a mobile phone of a vehicle owner, so that the vehicle owner can know the fault condition at the first time, and the vehicle owner can take corresponding reasonable solution measures according to the fault condition. However, the remote fault diagnosis method depends on the cloud server and the remote network, and in an area with a poor mobile network, because the vehicle-mounted diagnosis box cannot establish communication connection with the cloud server, the fault diagnosis method is limited, and thus the reliability is poor.
Disclosure of Invention
The invention aims to provide a high-reliability automobile fault diagnosis system and a high-reliability automobile fault diagnosis method.
The automobile fault diagnosis system comprises a vehicle-mounted diagnosis box, a vehicle-mounted ECU, a vehicle-mounted fault solution storage unit and a mobile terminal, wherein the vehicle-mounted fault solution storage unit is pre-stored with a fault solution corresponding to fault information; and the vehicle-mounted diagnosis box is respectively in communication connection with the vehicle-mounted ECU, the vehicle-mounted fault solution storage unit and the mobile terminal.
The automobile fault diagnosis method adopts the automobile fault diagnosis system, and specifically comprises the following steps:
A. the vehicle owner sends a fault diagnosis request instruction to the vehicle-mounted diagnosis box through the mobile terminal;
B. after reading the fault information of the vehicle-mounted ECU, the vehicle-mounted diagnosis box searches a fault solution corresponding to the fault information in a vehicle-mounted fault solution storage unit according to the fault information and sends the fault solution to the mobile terminal;
C. and the vehicle owner completes troubleshooting and maintenance of the fault according to the received fault solution.
In the automobile fault diagnosis system, the vehicle-mounted fault solution storage unit for storing the fault solution is arranged on the automobile, so that in the process of automobile fault diagnosis, the fault solution corresponding to the fault information is not required to be searched by virtue of a cloud server, but the corresponding fault solution is directly sent to the mobile terminal by the vehicle-mounted diagnosis box for display, so that the fault solution can be quickly obtained when the automobile breaks down in an area with poor mobile network without depending on the mobile network, an owner can automatically solve the fault according to the fault solution to enable the automobile to recover to normal, or judge that the fault does not influence normal running, then the automobile is driven to an after-sale service station by self, and the automobile does not need to go to the after-sale service station in a trailer mode when the fault does not influence the safe running of the automobile, thereby reducing maintenance costs. Of course, if the owner does not have the equipment required by the fault solution, the owner still needs to ask for help from the after-sales service station, which is not described herein again.
In the above vehicle fault diagnosis system, the on-board diagnosis box is in communication connection with the mobile terminal through a communication mode of a non-mobile network (e.g. a 4G or 5G mobile network) to reduce dependence on the mobile network, and specifically, the on-board diagnosis box is in communication connection with the mobile terminal through a wired communication mode (e.g. a USB communication mode) or a bluetooth communication mode or a local area network communication mode.
Further, in order to obtain better experience in an area with a better mobile network and conveniently increase or update the fault solutions stored in the vehicle-mounted fault solution storage unit, the vehicle fault diagnosis system further comprises a cloud server, and the vehicle-mounted diagnosis box and the mobile terminal are in communication connection with the cloud server through the mobile network.
Further, in order to improve the security and prevent malicious attacks by hackers and other persons, in the step B, after receiving the fault diagnosis request instruction, the vehicle-mounted diagnosis box firstly performs security verification of the identity of the vehicle owner with the mobile terminal, and after the security verification passes, the vehicle-mounted diagnosis box reads the fault information of the vehicle-mounted ECU.
Further, in the step B, the vehicle-mounted diagnosis box further sends fault information (for example, a fault code) to the mobile terminal, so that the vehicle owner can query a fault solution according to the fault information, for example, make a call to consult with others.
Further, in the step C, after the vehicle owner solves the fault, the vehicle owner sends the fault information and the corresponding solution to the cloud server by using the mobile terminal, after verification, a technician of the cloud server sends the fault information and the corresponding solution to all vehicle-mounted diagnosis boxes of the same vehicle type in a broadcasting manner, and the vehicle-mounted diagnosis boxes send the fault information and the corresponding solution to the vehicle-mounted fault solution storage unit for storage, so that the fault solution in the vehicle-mounted fault solution storage unit can be supplemented and updated, and maintenance experience support is provided for other vehicle owners of the same vehicle type.
The automobile fault diagnosis system and the automobile fault diagnosis method can provide a fault solution for an automobile owner under the condition of not depending on a mobile network, widen the applicable area, generate positive influence on customer maintenance and user experience, improve the after-sale satisfaction and transparency, supplement and update the fault solution according to the diagnosis record and the maintenance experience, and provide suggestions for other customers, thereby efficiently solving the fault problem, improving the market competitiveness of products and improving the market share.
Drawings
Fig. 1 is a schematic diagram of an automobile failure diagnosis system of embodiment 1.
Fig. 2 is a schematic diagram of the vehicle failure diagnosis system of embodiment 2.
Detailed Description
The following describes embodiments of the present invention, such as shapes and structures of respective members, mutual positions and connection relationships between respective portions, and actions and operation principles of the respective portions, in further detail, with reference to the accompanying drawings.
Example 1:
the embodiment provides an automobile fault diagnosis system and method with high reliability.
As shown in fig. 1, the vehicle failure diagnosis system of the present embodiment is composed of a vehicle-mounted diagnosis box, a vehicle-mounted ECU, a vehicle-mounted failure solution storage unit, and a mobile terminal, wherein the vehicle-mounted failure solution storage unit pre-stores a failure solution corresponding to failure information; the vehicle-mounted diagnosis box, the vehicle-mounted ECU and the vehicle-mounted fault solution storage unit are all mounted on the automobile and are in communication connection through an automobile bus (such as a CAN bus), and the vehicle-mounted diagnosis box is in communication connection with the mobile terminal through a communication mode (such as one or more of a wired communication mode, a Bluetooth communication mode and a local area network communication mode) of a non-mobile network. The mobile terminal is a smart phone.
The automobile fault diagnosis method of the embodiment adopts the automobile fault diagnosis system, and specifically comprises the following steps:
A. the vehicle owner sends a fault diagnosis request instruction to the vehicle-mounted diagnosis box through the mobile terminal;
B. after receiving a fault diagnosis request instruction, the vehicle-mounted diagnosis box firstly carries out safety verification on the identity of a vehicle owner with the mobile terminal, after the safety verification is passed, the vehicle-mounted diagnosis box reads fault information of the vehicle-mounted ECU, searches a fault solution corresponding to the fault information in a vehicle-mounted fault solution storage unit according to the fault information, and then sends the fault information (such as a fault code) and the corresponding fault solution to the mobile terminal;
C. and the vehicle owner completes troubleshooting and maintenance of the fault according to the received fault solution.
In the automobile fault diagnosis system, the vehicle-mounted fault solution storage unit for storing the fault solution is arranged on the automobile, so that in the process of automobile fault diagnosis, the fault solution corresponding to the fault information is not required to be searched by virtue of a cloud server, but the corresponding fault solution is directly sent to the mobile terminal by the vehicle-mounted diagnosis box for display, so that the fault solution can be quickly obtained when the automobile breaks down in an area with poor mobile network without depending on the mobile network, an automobile owner can automatically solve the fault according to the fault solution to enable the automobile to recover to normal, or judge that the fault does not affect normal running, then the automobile is driven to an after-sale service station by self, and the automobile does not need to go to the after-sale service station in a trailer mode when the fault does not affect safe running of the automobile, thereby reducing maintenance costs. Of course, if the owner does not have the equipment required by the fault solution, the owner still needs to ask for help from the after-sales service station, which is not described herein again.
Example 2:
the embodiment provides an automobile fault diagnosis system and a diagnosis method which are high in reliability and easy to supplement and update fault solutions.
As shown in fig. 2, the vehicle fault diagnosis system of the present embodiment is composed of a vehicle-mounted diagnosis box, a vehicle-mounted ECU, a vehicle-mounted fault solution storage unit, a cloud server, and a mobile terminal, wherein the vehicle-mounted fault solution storage unit pre-stores a fault solution corresponding to fault information; the vehicle-mounted diagnosis box, the vehicle-mounted ECU and the vehicle-mounted fault solution storage unit are all mounted on a vehicle and are in communication connection through a vehicle bus (such as a CAN bus), the vehicle-mounted diagnosis box is in communication connection with the mobile terminal through a communication mode of a mobile network (such as a 4G and a 5G mobile network) and a communication mode of a non-mobile network (such as one or more of a wired communication mode, a Bluetooth communication mode and a local area network communication mode), and the vehicle-mounted diagnosis box and the mobile terminal are in communication connection with the cloud server through the mobile network. The mobile terminal is a smart phone.
The automobile fault diagnosis method of the embodiment adopts the automobile fault diagnosis system, and specifically comprises the following steps:
A. the vehicle owner sends a fault diagnosis request instruction to the vehicle-mounted diagnosis box through the mobile terminal;
B. after receiving a fault diagnosis request instruction, the vehicle-mounted diagnosis box firstly carries out safety verification on the identity of a vehicle owner with the mobile terminal, after the safety verification is passed, the vehicle-mounted diagnosis box reads fault information of the vehicle-mounted ECU, searches a fault solution corresponding to the fault information in a vehicle-mounted fault solution storage unit according to the fault information, and then sends the fault information (such as a fault code) and the corresponding fault solution to the mobile terminal;
C. the vehicle owner completes troubleshooting and maintenance of the fault according to the received fault solution; after a vehicle owner solves a fault, fault information and a corresponding solution are sent to a cloud server by using a mobile terminal, technicians of the cloud server verify that the fault information and the corresponding solution are sent to all vehicle-mounted diagnosis boxes of the same vehicle type in a broadcasting mode, and the vehicle-mounted diagnosis boxes send the fault information and the corresponding solution to a vehicle-mounted fault solution storage unit for storage, so that the fault solution in the vehicle-mounted fault solution storage unit can be supplemented and updated, and maintenance experience support is provided for other vehicle owners of the same vehicle type.
The invention has been described in connection with the accompanying drawings, it is to be understood that the invention is not limited in its application to the details of construction and the arrangement of the components set forth in the following description, as long as the invention is capable of being practiced without modification in any way whatsoever, and is capable of other applications without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. The vehicle fault diagnosis system is characterized by comprising a vehicle-mounted diagnosis box, a vehicle-mounted ECU, a vehicle-mounted fault solution storage unit and a mobile terminal, wherein the vehicle-mounted fault solution storage unit is prestored with a fault solution corresponding to fault information; and the vehicle-mounted diagnosis box is respectively in communication connection with the vehicle-mounted ECU, the vehicle-mounted fault solution storage unit and the mobile terminal.
2. The vehicle fault diagnosis system according to claim 1, wherein the vehicle-mounted diagnosis box is in communication connection with the mobile terminal through a wired communication mode, a bluetooth communication mode or a local area network communication mode.
3. The vehicle fault diagnosis system according to claim 1 or 2, further comprising a cloud server, wherein the vehicle-mounted diagnosis box and the mobile terminal are both connected with the cloud server in a communication manner through a mobile network.
4. A vehicle failure diagnosis method using the vehicle failure diagnosis system of claim 1, characterized by comprising the steps of:
A. the vehicle owner sends a fault diagnosis request instruction to the vehicle-mounted diagnosis box through the mobile terminal;
B. after reading the fault information of the vehicle-mounted ECU, the vehicle-mounted diagnosis box searches a fault solution corresponding to the fault information in a vehicle-mounted fault solution storage unit according to the fault information and sends the fault solution to the mobile terminal;
C. and the vehicle owner completes troubleshooting and maintenance of the fault according to the received fault solution.
5. The vehicle fault diagnosis method according to claim 4, wherein in the step B, after the vehicle-mounted diagnosis box receives the fault diagnosis request instruction, the vehicle-mounted diagnosis box firstly performs safety verification of the identity of the vehicle owner with the mobile terminal, and after the safety verification is passed, the vehicle-mounted ECU fault information is read.
6. The vehicle fault diagnosis method according to claim 4 or 5, wherein in the step B, the vehicle-mounted diagnosis box further sends fault information to the mobile terminal so as to facilitate the vehicle owner to inquire a fault solution according to the fault information.
7. The method according to claim 6, wherein in the step C, after the vehicle owner solves the fault, the vehicle owner sends the fault information and the corresponding solution to the cloud server through the mobile terminal, after the technician at the cloud server verifies the fault information and the corresponding solution are sent to all vehicle-mounted diagnosis boxes of the same vehicle type in a broadcast mode, and the vehicle-mounted diagnosis boxes send the fault information and the corresponding solution to the vehicle-mounted fault solution storage unit for storage.
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| CN202110278814.1A CN112947382A (en) | 2021-03-16 | 2021-03-16 | Automobile fault diagnosis system and method |
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| CN202110278814.1A CN112947382A (en) | 2021-03-16 | 2021-03-16 | Automobile fault diagnosis system and method |
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| CN113655770A (en) * | 2021-07-02 | 2021-11-16 | 上海乐意修科技有限公司 | Automobile fault diagnosis teaching system and method |
| CN113960988A (en) * | 2021-11-15 | 2022-01-21 | 合众新能源汽车有限公司 | Vehicle-mounted multimedia equipment with diagnosis function and diagnosis method |
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Application publication date: 20210611 |