CN113486221A

CN113486221A - Vehicle diagnosis method based on inquiry and prompt, electronic equipment and vehicle

Info

Publication number: CN113486221A
Application number: CN202110755992.9A
Authority: CN
Inventors: 刘义雷; 顾名诗宇
Original assignee: Shanghai Xingrong Automotive Technology Co ltd
Current assignee: Shanghai Xingrong Automotive Technology Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-10-08

Abstract

The invention provides a vehicle diagnosis method based on inquiry and prompt, an electronic device and a vehicle.

Description

Vehicle diagnosis method based on inquiry and prompt, electronic equipment and vehicle

Technical Field

The invention belongs to the technical field of vehicle diagnosis, and particularly relates to a vehicle diagnosis method based on inquiry and prompt, electronic equipment and a vehicle.

Background

At present, in the vehicle diagnosis process, a maintenance master generally uses a diagnosis device to read data from a vehicle according to experience and/or check the vehicle, and then diagnoses a vehicle fault, which depends on the experience of the maintenance master to a great extent, the accumulated experience time is generally 3-5 years or even longer, but the situation of the vehicle which is maintained frequently is only known approximately, so that the maintenance efficiency is not high, the diagnosis result is not accurate, especially for a novice, the experience is limited, which often does not know which data needs to be read from the vehicle by using the diagnosis device and/or what position of the vehicle needs to be checked to determine the cause of the vehicle fault, and different data needs to be read repeatedly for a long time and/or the vehicle needs to be checked blindly.

Disclosure of Invention

In view of the above, an efficient and accurate vehicle diagnosis method, electronic device and vehicle based on inquiry and prompt are provided.

In order to solve the technical problems, the invention adopts the following technical scheme:

in one aspect, a vehicle diagnosis method based on inquiry and prompt is provided, which is characterized by comprising the following steps:

s101, reading data from a vehicle, and determining corresponding multi-stage fault phenomena according to the data;

s102, judging the multi-stage fault phenomena step by step according to a preset sequence to obtain a diagnosis conclusion:

21) determining a corresponding preset condition according to the current fault phenomenon, inquiring whether the current fault phenomenon of a user meets the preset condition, and carrying out inspection prompt on the user;

22) receiving information input by a user, determining whether the current fault phenomenon meets preset conditions according to the information, if so, determining a corresponding diagnosis conclusion, otherwise, taking the next-stage fault phenomenon as the current fault phenomenon, and returning to the step 21).

In another aspect, an electronic device is provided that includes a memory module containing instructions loaded and executed by a processor, the instructions when executed cause the processor to perform a method of vehicle diagnostics based on queries and prompts as described above.

In still another aspect, a vehicle is provided having an electronic device as described above.

According to the invention, the corresponding multi-stage fault phenomenon can be determined through the data read from the vehicle, and then the multi-stage fault phenomenon is judged step by step based on the inquiry and the prompt, so that the corresponding diagnosis conclusion is determined, the diagnosis efficiency and the accuracy are improved, and the method is more friendly to a novice maintenance master.

Drawings

The invention is described in detail below with reference to the following figures and detailed description:

FIG. 1 is a flow chart of a method for query and prompt based vehicle diagnostics in accordance with an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating the step-by-step determination of the multi-step failure phenomenon of the audi S100 fuel system according to the present invention.

Detailed Description

As shown in fig. 1, an embodiment of the present specification provides a vehicle diagnosis method based on query and prompt, including:

s101, reading data from the vehicle, and determining corresponding multi-stage fault phenomena according to the data.

In one embodiment, step S101 further comprises:

11) vehicle information is read from the vehicle along with the fault code.

Wherein the vehicle information is a vehicle type.

12) And judging whether a fault code is read, if so, executing step 13), and if not, executing step 14).

13) Determining a corresponding fault position according to the fault code, and determining a corresponding multi-stage fault phenomenon according to the fault position;

14) and determining corresponding multi-stage fault phenomena according to the vehicle information.

According to the invention, the fault position is preliminarily determined by the fault code, and then the corresponding multi-stage fault phenomenon is determined according to the fault position, however, in an actual application scene, after some faults occur, a sensor of a system assembly in the automobile transmits wrong parameters to an automobile Electronic Control Unit (ECU), so that the state of the system assembly judged by the ECU is inconsistent with the actual state of the system assembly, at the moment, the parameter value of the system assembly is abnormal but does not exceed the specified data range in the ECU, and the fault code cannot be read, and at the moment, the corresponding multi-stage fault phenomenon can be found by vehicle information.

In one embodiment, in step 13), the fault code is used as an index, the corresponding fault position is matched from the database, then the fault position is used as an index, the multi-stage fault phenomenon common to the fault position is matched from the database, and in step 14), the vehicle information is used as an index, and the multi-stage fault phenomenon common to the corresponding vehicle is matched from the database.

21) inquiring whether the current fault phenomenon of the user meets a preset condition or not, and carrying out inspection prompt on the user.

In one embodiment, the inspection prompt includes data to be read and/or a location of the vehicle to be inspected.

In one embodiment, step 21) further comprises:

21a) and matching corresponding preset conditions from the database by taking the fault phenomenon as an index.

21b) And inquiring whether the current fault phenomenon of the user meets the preset condition or not.

21c) And prompting the user for the checking scheme corresponding to the current fault phenomenon.

The checking scheme can further prompt a user how to read the data to be read and/or how to check the position of the vehicle to be checked, so that the diagnosis efficiency can be further improved, and the method is more friendly to novices.

And when the corresponding fault is determined, matching the corresponding diagnosis conclusion from the database by taking the fault phenomenon meeting the preset condition as an index.

The diagnostic decision may include specific components and causes.

Step S102, inquiring the user aiming at each level of fault phenomenon, and carrying out inspection prompt on the user, wherein the user can carry out corresponding inspection according to the prompt, then input the inspection result, and after receiving the information input by the user, judge whether the preset condition is satisfied according to the information.

An interface can be presented through a human-computer interaction device (such as a touch screen), and a user can be queried and information input by the user can be received through the interface.

Assume that the multi-level fault phenomena include:

first stage failure phenomena 1

Second stage of failure 2

.....

Nth stage failure phenomenon n

And when the preset condition corresponding to the fault phenomenon 1 is not established, judging whether the preset condition corresponding to the fault phenomenon 2 is established, if so, obtaining a diagnosis conclusion corresponding to the fault phenomenon 2, otherwise, judging whether the preset condition of the next-stage fault phenomenon is established, and analogizing in turn.

S103, prompting a corresponding maintenance suggestion to the user according to the determined diagnosis conclusion.

The corresponding repair recommendations may be matched from the database, indexed by faults.

The data in the database can be added and updated after being analyzed, summarized and counted according to historical diagnosis data and experience of a vehicle repairing master.

The following description will be made by taking the occurrence of a failure in the Audi S100 fuel system as an example:

first, a fault code 4431 is read, and based on the fault code, the location of the fault can be preliminarily determined to be the fuel system of the vehicle engine.

Then, common fault phenomena of the automobile engine fuel system can be matched through the database as follows:

intake manifold and vacuum line leak

Poor throttle operation

.....

See fig. 2.

Then, as shown in fig. 2, the multi-stage fault phenomenon is judged from top to bottom step by step to determine the fault:

1. prompting a user to clean a throttle body, then checking whether leakage phenomena exist in an air intake manifold and a vacuum pipeline, prompting the user to read appropriate data for checking, inputting a result by the user, if corresponding preset conditions are met, representing that the leakage phenomena exist in the air intake manifold and the vacuum pipeline, proving that faults exist at the position, and giving a diagnosis conclusion: the intake pressure sensor has problems, and gives suggestions: and replacing an air inlet pressure sensor, otherwise, if the preset condition is not met, judging the next-stage fault phenomenon.

2. Prompting the user to detect whether the throttle valve action condition is good, and if the throttle valve action condition is poor after being checked, giving a conclusion that: cylinder compression pressure is insufficient or air filter is severely clogged, suggesting: and deeply detecting and maintaining the cylinder, otherwise, if the throttle valve acts normally, advising a user to clear the fault code for road test, reading an engine ECU to check whether fault code memory exists, and if the fault is not cleared, judging the next-stage fault phenomenon.

3. Prompting a user to detach the wire connector N71 of the idle motor, measuring the resistance value of the idle motor, detecting whether the resistance value is between 7 omega and 11 omega, the resistance value is about 7 omega when the automobile is cold, the resistance value is about 11 omega when the automobile is hot, and obtaining a fault conclusion if the measured resistance value of the idle motor of the automobile is not between 7 omega and 11 omega: the idle motor resistance damages, proposes: and (4) changing the idle speed motor, otherwise, judging the next-stage fault phenomenon.

4. The user is prompted to observe the rotary valve of the idle motor to see whether the rotation condition of the rotary valve from the start of operation to the stop of the rotary valve is smooth, and if the valve does not move smoothly, the system can draw a conclusion that: the idle motor valve is damaged, and the suggestion: and (4) replacing the idle motor, otherwise, judging the next-stage fault phenomenon.

5. Prompting a user to disassemble the idle motor dustproof sleeve, and testing the actual working condition of the idle motor by using a popular automobile system special instrument VAG 1551:

(1) and measuring the No. 1 connector and the grounding end of the idle speed motor by using an LED lamp, and lighting the lamp.

(2) And measuring the No. 1 connector of the idle speed motor and the anode of the storage battery by using an LED lamp, and lighting the lamp.

If the LED lamp is not on, or the idle motor is not active, the system concludes a fault: poor contact of the engine control computer terminal pin, the suggestion: the on-off condition between the position of the control computer end pin of the engine and the connector of the idle speed motor needs to be checked. Otherwise, if the LED lamp is normal, the next stage fault phenomenon is determined, which is not described herein again, and refer to fig. 2.

Based on the same inventive concept, the present specification also provides an electronic device, which includes a storage module including instructions loaded and executed by a processor, wherein the instructions, when executed, cause the processor to execute the steps according to the various exemplary embodiments of the present invention described in the query and prompt based vehicle diagnosis method section.

The memory module may include a readable medium in the form of a volatile memory unit, such as a random access memory unit (RAM) and/or a cache memory unit, and may further include a read only memory unit (ROM).

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).

Based on the same inventive concept, embodiments of the present specification further provide a vehicle, where the vehicle has the above-mentioned electronic device, and details are not described here again.

However, those skilled in the art should realize that the above embodiments are illustrative only and not limiting to the present invention, and that changes and modifications to the above described embodiments are intended to fall within the scope of the appended claims, provided they fall within the true spirit of the present invention.

Claims

1. A method for vehicle diagnostics based on queries and prompts, comprising:

2. The query and prompt based vehicle diagnostic method of claim 1, further comprising:

3. The inquiry and prompt-based vehicle diagnosis method according to claim 1 or 2, wherein the step S101 further comprises:

11) reading vehicle information and a fault code from a vehicle;

12) judging whether a fault code is read, if so, executing step 13), and if not, executing step 14);

4. The query and prompt based vehicle diagnostic method of claim 3, wherein the step 13) further comprises:

matching corresponding fault positions from a database by taking the fault codes as indexes;

matching corresponding multi-stage fault phenomena from a database by taking the fault position as an index;

the step 14) further comprises:

and matching corresponding multi-stage fault phenomena from the database by taking the vehicle information as an index.

5. The method for vehicle diagnosis based on inquiry and prompt as set forth in claim 4, wherein said step S102 further comprises:

an interface is displayed through the man-machine interaction device, and the user is inquired and the information input by the user is received through the interface.

6. The method of claim 5, wherein the human-computer interaction device is a touch screen.

7. The query and prompt based vehicle diagnostic method of claim 6, wherein the step 21) further comprises:

matching corresponding preset conditions from a database by taking the fault phenomenon as an index;

inquiring whether the current fault phenomenon of the user meets the preset condition or not;

and prompting the checking scheme corresponding to the current fault phenomenon to a user.

8. The query and prompt based vehicle diagnostic method of claim 7, wherein the determining the corresponding fault further comprises:

and matching corresponding diagnosis conclusions from the database by taking the fault phenomena meeting the preset conditions as indexes.

9. An electronic device comprising a memory module containing instructions loaded and executed by a processor, the instructions when executed cause the processor to perform a method of vehicle diagnostics based on interrogation and prompting according to any of claims 1-8.

10. A vehicle, characterized in that it has an electronic device according to claim 9.