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Method and system for detecting and identifying electronic waveform of engine exhaust pressure

A technology for exhaust pressure and waveform detection, which is applied in the direction of engine testing, engine components, combustion engines, etc., can solve the problems of extensive detection and maintenance, lack of electronic pressure waveform detection and analysis of generator exhaust, etc., and achieve a broad market application space , Improve the technical level, improve the effect of technical ability

Active Publication Date: 2022-07-22
广东唯普汽车科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the detection process, there is a lack of detection and analysis of the electronic pressure waveform of the generator exhaust
The detection and maintenance are too extensive, judged by feeling, and diagnosed by experience, and often take a lot of detours

Method used

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  • Method and system for detecting and identifying electronic waveform of engine exhaust pressure
  • Method and system for detecting and identifying electronic waveform of engine exhaust pressure
  • Method and system for detecting and identifying electronic waveform of engine exhaust pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The method for detecting the electronic waveform of the exhaust pressure of the engine includes: refer to figure 1 ,

[0034] ① Set up an exhaust pressure sensor 200, put the exhaust pressure sensor 200 through the sleeve 600 and place it on the exhaust pipe port of the vehicle to be detected, so that the sensor is located within 2cm of the outlet of the exhaust pipe 100, and the exhaust pressure sensor The susceptible surface faces the exhaust source direction;

[0035] ②Detect and record the electronic waveform of the output signal of the exhaust pressure sensor;

[0036] ③Respectively regulate the working conditions of the engine, so that the engine is in one or more working conditions among the idle speed working condition, the small load working condition, the medium conforming working condition, the large load working condition and the acceleration working condition, and record the discharge conditions of the corresponding working conditions respectively. Electr...

Embodiment 2

[0051] like figure 1 As shown, the system includes an exhaust pressure sensor 200, a data processing unit 300 and a display unit 400. The exhaust pressure sensor 200 is placed on the exhaust pipe opening of the vehicle to be detected through the sleeve 600, so that the sensor is located at the exhaust pipe 100. Within the range of 2cm from the outlet, it also includes an exhaust pressure sensor connected to the data processing unit, which is used to transmit the electronic signal output by the exhaust pressure sensor to the data processing unit, and the data processing unit detects the engine exhaust pressure electronic waveform according to Embodiment 1. The data processing unit is also connected to the display unit, which is used for terminal display of the operation result through the display unit, which can display the waveform diagram, and also can display the specific information such as the identification information after the operation processing, such as the insufficie...

Embodiment 3

[0055] like figure 2 As shown, the system includes an exhaust pressure sensor 200, a wireless data receiving unit 500, a data processing unit 300 and a display unit 400. The exhaust pressure sensor 200 is placed on the exhaust pipe port of the vehicle to be detected through the sleeve 600, so that the The sensor is located within 2cm of the outlet of the exhaust pipe 100. A signal transmitter can be installed in the exhaust pressure sensor, and the output radio frequency signal is transmitted by wireless transmission. The wireless data receiving unit receives the output radio frequency signal by wireless transmission, and the wireless data receives The unit is connected to the data processing unit, and is used for receiving the radio frequency electronic signal output by the exhaust pressure sensor and then transmitting it to the data processing unit, and the data processing unit performs arithmetic processing according to the method for detecting and identifying the electroni...

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Abstract

An engine exhaust pressure electronic waveform detection and identification method and system belong to the technical field of automobile detection and maintenance equipment manufacturing. The system includes an exhaust pressure sensor, a data processing unit and a display unit, and the exhaust pressure sensor is connected to the data The processing unit is used to transmit the electronic signal output by the exhaust pressure sensor to the data processing unit, and the data processing unit performs arithmetic processing according to the electronic waveform detection and identification method of the engine exhaust pressure; the data processing unit is also connected to the display unit, which is used for computing The results are displayed on the terminal through the display unit, and the displayed information is used to analyze the operating characteristics of the engine, the engine performance or the cause of the failure. The sensor signal can also be wirelessly transmitted, processed in the cloud, APP diagnosis, etc. The present invention quantifies the exhaust pressure wave Detection and waveform analysis can effectively carry out accurate and comprehensive detection and diagnosis of engine performance, and improve the technical level of vehicle maintenance and maintenance operations.

Description

technical field [0001] The invention belongs to the technical field of automobile detection and maintenance equipment manufacturing, and in particular relates to a method and system for detecting and identifying an electronic waveform of engine exhaust pressure. Background technique [0002] With the advancement of science and technology and the development of human social transportation, automobiles have become an essential means of transportation for social production and people's lives. [0003] The running performance of an automobile engine is directly related to the driving performance and exhaust emission performance of the vehicle. With the increase of the running mileage of the engine and the vehicle, many technical problems during the use of the engine show certain characteristics in the exhaust gas flow. However, the current automobile maintenance and inspection, maintenance industry generally does not have a test device to detect the waveform of the engine exhaus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01N11/00G01M15/02G06K9/00
CPCF01N11/002G01M15/02G06F2218/08Y02T10/40
Inventor 张明芬
Owner 广东唯普汽车科技股份有限公司
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