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Vehicle intelligent diagnosis method and system and diagnosis equipment

An intelligent diagnosis and vehicle technology, applied in the field of vehicle diagnosis, to achieve the effect of high accuracy, reducing the probability of misjudgment, and facilitating vehicle fault diagnosis

Pending Publication Date: 2021-01-08
SHANGHAI XINGRONG AUTOMOBILE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nowadays, the diagnosis and maintenance of vehicles are more intelligent and convenient, but there is no vehicle intelligent diagnosis technology that can automatically analyze the vehicle data stream to draw corresponding diagnostic conclusions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0078] Example 1: S000089:[{S000089}<5]{S000089}<5:1$most

[0079] In this sentence, S000089 represents the engine speed, most represents the time period with the largest amount of data, 1 represents the number of acquisitions, $ represents the bit operation, "[{S000089}<5]" represents the maximum value of the engine speed is less than 5, this clause The statement indicates the trigger condition: collect a period of time with the largest amount of engine speed data, collect once, and the engine speed reading value is less than 5. If the trigger condition is met, the corresponding diagnostic conclusion analysis algorithm will be triggered.

example 2

[0080] Example 2: S000089:[{S000089}5&&{S000089}<150:2$most

[0081] In this statement, S000089 represents the engine speed, && represents simultaneous establishment, 2 represents the number of collections, and most refers to the time period with the largest amount of data. This sentence indicates the trigger condition: collect the time period with the largest amount of engine speed data, collect twice, and the reading value of the engine speed is less than 150 and greater than 5 for two consecutive times. If the trigger condition is met, the corresponding diagnostic conclusion analysis algorithm will be triggered.

[0082] Style two:

[0083] Data stream code1, data stream code2, data stream code3: ({data stream code1}>=a&&{data stream code1}<=b)&&eq({data stream code2}, status 1)&&eq({data stream code3}, status 2): The number of collections: select the data flow segment to be collected

[0084] Wherein, multiple data streams are connected by connectors, and eq({data stream...

example 3

[0126] Example 3: most$S000035|{S000035}

[0127] S000035 is the battery voltage, most$ means the most value, and this processing statement means to take the value with the most occurrences of the battery voltage.

[0128] Style two:

[0129] most$data stream code|if({data stream code}==status)? 0:1

[0130] The processing method statement supports judgment. If you need to judge the state data stream, you can use the if function. If the data stream code read value is the specified state, then assign a value of 0 to the data stream, otherwise assign a value of 1, which can be stacked with other functions use.

[0131] The following is an example of the specific application of Style 2:

[0132] Example 1: most$S000049|if({S000049}==on)? 0:1

[0133] S000049 is the stop switch under the car. This processing statement means that if the read value of the stop switch under the car appears the most times, the value is set to 0, otherwise the value is assigned to 1.

[0134] St...

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PUM

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Abstract

The invention discloses a vehicle intelligent diagnosis method, and the method comprises the steps: responding to a vehicle fault model selected by a user, and calling the vehicle fault model for diagnosis: obtaining a data flow corresponding to a current vehicle fault model; sequentially calling and displaying a plurality of pages corresponding to the current vehicle fault model according to a preset page skipping sequence and skipping conditions; judging whether a preset algorithm triggering condition is met or not according to the obtained data flow and / or the currently called page, and ifyes, triggering a corresponding diagnosis conclusion analysis algorithm; and judging whether the corresponding data flow meets a preset diagnosis conclusion condition or not through a triggered diagnosis conclusion analysis algorithm to obtain a corresponding preset diagnosis conclusion. According to the method, the corresponding preset diagnosis conclusion analysis algorithm is triggered according to the preset algorithm triggering condition, the corresponding preset diagnosis conclusion is obtained through the diagnosis conclusion analysis algorithm, maintenance personnel can conveniently diagnose vehicle faults, the accuracy is high, and the misjudgment probability is reduced.

Description

technical field [0001] The invention belongs to the technical field of vehicle diagnosis, and in particular relates to a vehicle intelligent diagnosis method, system and diagnostic equipment. Background technique [0002] With the development of science and technology, the structure of automobiles is becoming more and more complex, the functions are becoming more and more perfect, and the degree of automation is getting higher and higher. Not only are different parts of the same equipment related to each other and tightly coupled, but also There is a tight connection that forms a whole in operation. A fault may cause a series of chain reactions, resulting in the failure of the entire process to run normally, and even causing major losses, so the requirements for fault diagnosis are getting higher and higher. [0003] In the initial stage of automobile diagnosis, the diagnosis results are mainly based on the senses and professional experience of experts in the field, and onl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/451G01M17/007
CPCG06F9/451G01M17/007
Inventor 王超李永前蒋雨杰尹荣铎蔡继业
Owner SHANGHAI XINGRONG AUTOMOBILE TECH CO LTD