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Using network transmission data to monitor vehicles in use no x Emission data processing method

A data monitoring and data processing technology, applied in the direction of electrical digital data processing, special data processing applications, design optimization/simulation, etc., can solve problems such as large amount of database data, and achieve the effect of ensuring reliability and credibility

Active Publication Date: 2022-04-22
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

Since the data starts to be uploaded after the engine is started, the database not only has a large amount of data, but also has a large amount of invalid data

Method used

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  • Using network transmission data to monitor vehicles in use no <sub>x</sub> Emission data processing method
  • Using network transmission data to monitor vehicles in use no <sub>x</sub> Emission data processing method

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Embodiment Construction

[0025] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, therefore, the present invention is not limited to the specific embodiments disclosed below limit.

[0027] Such as figure 1 As shown, the present invention provides a vehicle NO x Emissions data processing methods, including:

[0028] Step S1, obtaining the vehicle data collected by the vehicle exhaust detection equipment;

[0029] Step S2, eliminating invalid data according to vehicle data and calculating non-directly uploaded data to obtain preprocessed data;

[0030] Step S3, cutting the pre-...

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Abstract

The invention provides a vehicle NO x The emission data processing method involves the technical field of vehicle exhaust detection data processing, including: obtaining vehicle data collected by vehicle exhaust detection equipment; eliminating invalid data and calculating non-directly uploaded data to obtain preprocessed data; The data is cut; the preprocessed data fragment is cut with the data fragment duration threshold point as the cutting point to obtain the cut data fragment; the fragments with discontinuous water temperature at adjacent points and the vehicle load exceeding the vehicle threshold are eliminated; the effective data fragments are processed according to the vehicle speed Mark and sample to obtain valid sample data fragments; when the sample valid data fragments meet the PEMS cyclic reconstruction requirements, the sample valid data fragments are spliced, and the NO of the spliced ​​data is calculated x Emissions, the above data processing methods can quickly identify valid data and ensure NO x Reliability and confidence in emissions results.

Description

technical field [0001] The invention relates to the technical field of vehicle exhaust emission detection data processing, in particular, to a vehicle NO x Emission data processing method. Background technique [0002] As emission regulations for heavy-duty diesel locomotives become stricter, the emission testing process becomes more and more complex. The diesel engine emission test must pass the engine bench emission test (GB 17691-2018), the vehicle hub emission test (GB / T27840-2011) and the real vehicle road PEMS (portable emission measurement system) test. However, since the emission control system of a diesel engine is very complex both in terms of hardware layout and software control, even if a new vehicle passes the emission test, there is still a high risk of excessive emissions after the vehicle has been used for a long time. In August 2018, GB17691-2018 "Heavy-duty Diesel Vehicle Pollutant Emission Limits and Test Methods (China Phase 6)" was issued, which put fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F113/08
CPCG06F30/20G06F2113/08
Inventor 裴毅强吴春玲刘春涛施泰峰张帆王膺博
Owner TIANJIN UNIV
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