A test method, device and medium for generating condensate water based on an EGR system

By designing test methods and devices for the EGR system, the generation of condensate was observed and evaluated in real time and in stages. This solved the problem of measuring the amount of condensate in the EGR system, optimized the engine design, avoided additional costs, and ensured the quality of product development.

CN117469060BActive Publication Date: 2026-05-29CHONGQING CHANGAN AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING CHANGAN AUTOMOBILE CO LTD
Filing Date
2023-10-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

There is a lack of suitable methods in the current technology to directly measure the condensate volume of EGR systems, making it impossible to quantify the condensate generation level under specific operating conditions.

Method used

Design an experimental method and apparatus based on an EGR system. By collecting multimedia data, the condensate generation can be observed in real time. The condensate generation can be optimized through graded evaluation, and the condensate volume can be controlled by software and hardware optimization measures.

Benefits of technology

This enabled real-time observation and graded evaluation of condensate generation in the EGR system, optimized engine design, avoided the cost of designing a dedicated condensate treatment device later, and ensured product development quality and schedule.

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Abstract

The present application relates to the technical field of EGR, and specifically provides a test method, device and medium for generating condensate water based on an EGR system, which comprises the following steps: collecting multimedia data in an EGR cooler in real time, cyclically executing a first preset process until the EGR cooler has no condensate water; collecting multimedia data in an air compressor inlet or an intake manifold in real time, executing a second preset process, and ending the test when a condensate water level obtained based on the multimedia data is not greater than a preset value, or increasing an intake temperature in an EGR opening condition if the condensate water level obtained based on the multimedia data is greater than the preset value. According to the present application, a test working condition is designed according to an EGR system condensate water generation scene, the generation of condensate water in the EGR system is observed in real time during engine operation, a classification evaluation is performed, and effective optimization measures are provided for the problem of unqualified condensate water level.
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