CN-122014392-A - Vehicle aftertreatment system configuration method, device, equipment and readable storage medium

CN122014392ACN 122014392 ACN122014392 ACN 122014392ACN-122014392-A

Abstract

A vehicle aftertreatment system configuration method comprises the steps of keeping configuration of a particle catcher unchanged, using configuration of different catalytic converters to conduct vehicle exhaust emission test to obtain a first test result, selecting configuration of the catalytic converter which passes vehicle exhaust emission test and has highest cost performance from the first test result, keeping configuration of the selected catalytic converter unchanged, using configuration of different particle catchers to conduct vehicle exhaust emission test to obtain a second test result, and selecting configuration of the particle catcher which passes vehicle exhaust emission test and has highest cost performance from the second test result to obtain optimal configuration combination of the particle catcher and the catalytic converter. By the method and the device, the vehicle aftertreatment system can be optimally configured.

Inventors

ZHAO JIUZHOU
XIE YUNQING
LIU QUAN
CUI JUNJIE
WANG HAIFENG

Assignees

武汉达安科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260330

Claims (10)

1. A vehicle aftertreatment system configuration method, wherein the vehicle aftertreatment system includes a catalytic converter and a particulate trap, the vehicle aftertreatment system configuration method comprising: acquiring the configuration of a catalytic converter and a particle catcher passing the vehicle exhaust emission test; the configuration of the particle catcher is kept unchanged, and the configuration of different catalytic converters is used for testing the exhaust emission of the vehicle to obtain a first test result, wherein the configuration of the catalytic converters comprises the content of noble metals; selecting the configuration of the catalytic converter which passes the vehicle exhaust emission test and has the highest cost performance from the first test result; Maintaining the configuration of the selected catalytic converter unchanged, and performing vehicle exhaust emission test by using the configuration of different particle traps to obtain a second test result; And selecting the configuration of the particle catcher which passes the vehicle exhaust emission test and has the highest cost performance from the second test result to obtain the optimal configuration combination of the particle catcher and the catalytic converter.
2. The vehicle aftertreatment system configuration method of claim 1, wherein the vehicle exhaust emission test comprises a normal temperature emission stability test, an actual road emission stability test, and a limit environment emission stability test, the normal temperature emission stability test, the actual road emission stability test, and the limit environment emission stability test being based on national regulatory automotive pollutant emission standards.
3. The vehicle aftertreatment system configuration method of claim 1, wherein the configuration of the catalytic converter further comprises volume and coating techniques, and the configuration of the particle trap comprises volume, material, and arrangement.
4. The vehicle aftertreatment system configuration of claim 3, wherein the precious metals comprise platinum, palladium and rhodium, the materials comprise cordierite, silicon carbide and aluminum titanium alloy, and the arrangements comprise close-coupled, post-catalyst and quaternary catalyst.
5. The vehicle aftertreatment system configuration method according to claim 1 wherein, after selecting the most cost effective configuration of the particulate trap passing the vehicle exhaust emission test from the second test results, obtaining the optimal configuration combination of the particulate trap and the catalytic converter, comprising: Performing a vehicle exhaust emission test using a plurality of samples of a vehicle aftertreatment system, the plurality of samples using an optimal combination of a configuration of a particle trap and a catalytic converter, to obtain a third test result; Based on the third test result, it is determined whether the optimal configuration combination of the particulate trap and the catalytic converter is stable.
6. The vehicle aftertreatment system configuration method according to claim 5 wherein after determining that the optimal configuration combination of the particulate trap and the catalytic converter is stable based on the third test result, comprising: performing vehicle exhaust emission testing by using a plurality of mass-produced products of a vehicle aftertreatment system to obtain a fourth test result, wherein the plurality of mass-produced products use an optimal configuration combination of a particle catcher and a catalytic converter; based on the fourth test result, it is determined whether the optimal configuration combination of the particulate trap and the catalytic converter is stable.
7. A vehicle aftertreatment system configuration device, wherein the vehicle aftertreatment system includes a catalytic converter and a particulate trap, the vehicle aftertreatment system configuration device comprising: The acquisition module is used for acquiring the configuration of the catalytic converter and the particle catcher passing the vehicle exhaust emission test; the first test module is used for keeping the configuration of the particle catcher unchanged, and carrying out vehicle exhaust emission test by using the configurations of different catalytic converters to obtain a first test result, wherein the configurations of the catalytic converters comprise noble metal content; The first selecting module is used for selecting the configuration of the catalytic converter which passes the vehicle exhaust emission test and has the highest cost performance from the first test result; The second testing module is used for keeping the configuration of the selected catalytic converter unchanged, and carrying out vehicle exhaust emission testing by using the configuration of different particle traps to obtain a second testing result; And the second selecting module is used for selecting the configuration of the particle catcher which passes the vehicle exhaust emission test and has the highest cost performance from the second test result to obtain the optimal configuration combination of the particle catcher and the catalytic converter.
8. The vehicle aftertreatment system configuration device of claim 7, wherein the vehicle exhaust emission test includes a normal temperature emission stability test, an actual road emission stability test, and a limit environment emission stability test, the normal temperature emission stability test, the actual road emission stability test, and the limit environment emission stability test being based on national regulatory automotive pollutant emission standards.
9. A vehicle aftertreatment system configuration device, characterized in that it comprises a processor, a memory, and a vehicle aftertreatment system configuration program stored on the memory and executable by the processor, wherein the vehicle aftertreatment system configuration program, when executed by the processor, implements the steps of the vehicle aftertreatment system configuration method according to any one of claims 1 to 6.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a vehicle aftertreatment system configuration program, wherein the vehicle aftertreatment system configuration program, when executed by a processor, implements the steps of the vehicle aftertreatment system configuration method of any one of claims 1 to 6.

Description

Vehicle aftertreatment system configuration method, device, equipment and readable storage medium Technical Field The present application relates to the field of vehicle environmental protection technologies, and in particular, to a vehicle aftertreatment system configuration method, device, equipment, and readable storage medium. Background The vehicle aftertreatment system is a core environment-friendly device which is arranged in an engine exhaust system and used for purifying tail gas and reducing pollutant emission, and the core environment-friendly device is used for converting harmful substances such as carbon monoxide, hydrocarbon, nitrogen oxides, particulate matters and the like in the tail gas into harmless or low-harmful substances (such as carbon dioxide, water and nitrogen) through cooperation with the engine so as to meet strict emission regulation requirements. In order to ensure that the emission of the tail gas of the vehicle reaches the standard, an automobile manufacturer generally adopts a mode of increasing the content of noble metal in a post-treatment system, and a higher surplus is reserved on the design of the post-treatment system. However, with the significant increase in the price of precious metals, the cost of the aftertreatment system increases significantly. Disclosure of Invention The application provides a configuration method, a device, equipment and a readable storage medium of a vehicle aftertreatment system, which aim to solve the problem that in order to ensure that the emission of vehicle tail gas reaches the standard, a mode of increasing the noble metal content in the aftertreatment system is generally adopted by an automobile manufacturer, and a higher margin is reserved on the design of the aftertreatment system. However, with the great increase in the price of noble metals, there is a technical problem that the cost of the post-treatment system is greatly increased. In a first aspect, an embodiment of the present application provides a vehicle aftertreatment system configuration method, where the vehicle aftertreatment system includes a catalytic converter and a particulate trap, the vehicle aftertreatment system configuration method includes: acquiring the configuration of a catalytic converter and a particle catcher passing the vehicle exhaust emission test; the configuration of the particle catcher is kept unchanged, and the configuration of different catalytic converters is used for testing the exhaust emission of the vehicle to obtain a first test result, wherein the configuration of the catalytic converters comprises the content of noble metals; selecting the configuration of the catalytic converter which passes the vehicle exhaust emission test and has the highest cost performance from the first test result; Maintaining the configuration of the selected catalytic converter unchanged, and performing vehicle exhaust emission test by using the configuration of different particle traps to obtain a second test result; And selecting the configuration of the particle catcher which passes the vehicle exhaust emission test and has the highest cost performance from the second test result to obtain the optimal configuration combination of the particle catcher and the catalytic converter. Optionally, the vehicle exhaust emission test comprises a normal temperature emission stability test, an actual road emission stability test and a limit environment emission stability test, wherein the normal temperature emission stability test, the actual road emission stability test and the limit environment emission stability test are based on the national regulated pollutant emission standard of the motor vehicle. Optionally, the configuration of the catalytic converter further includes a volume and coating technology, and the configuration of the particle catcher includes a volume, a material and an arrangement mode. Optionally, the noble metal comprises platinum, palladium and rhodium, the material comprises cordierite, silicon carbide and aluminum titanium alloy, and the arrangement mode comprises close-coupled type, rear-mounted type and quaternary catalyst type. Optionally, after selecting the configuration of the particle catcher which passes the vehicle exhaust emission test and has the highest cost performance from the second test result to obtain the optimal configuration combination of the particle catcher and the catalytic converter, the method includes: Performing a vehicle exhaust emission test using a plurality of samples of a vehicle aftertreatment system, the plurality of samples using an optimal combination of a configuration of a particle trap and a catalytic converter, to obtain a third test result; Based on the third test result, it is determined whether the optimal configuration combination of the particulate trap and the catalytic converter is stable. Optionally, after determining that the optimal configuration combination of the particulate trap and the ca