Modular motor vehicle exhaust pollutant onboard emission test platform

A technology for emission testing and motor vehicles, which is applied in vehicle testing, machine/structural component testing, measuring devices, etc., and can solve the full-component testing requirements that cannot meet the testing requirements and high-resolution exhaust pollutants, etc. problems, to achieve the effect of preventing sample gas leakage

Active Publication Date: 2018-05-08
TSINGHUA UNIV
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Problems solved by technology

[0010] However, the above figure 1 The on-board emission test system shown can only meet the actual road emission regulatory requirements of motor vehicles, but cannot meet different test requirements, especially the high-resolution full-component test requirements of exhaust pollutants.

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  • Modular motor vehicle exhaust pollutant onboard emission test platform
  • Modular motor vehicle exhaust pollutant onboard emission test platform
  • Modular motor vehicle exhaust pollutant onboard emission test platform

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Embodiment Construction

[0052] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0053] see figure 2 , the motor vehicle exhaust pollutant vehicle emission testing platform provided in this embodiment can realize the full component testing of pollutants, including two parts: the pollutant vehicle emission testing system and the control host 8.

[0054] 1. Vehicle-mounted emission test system for all components of pollutants

[0055] The on-board emission test system for all components of pollutants not only includes such as figure 1 The on-board emission test system 1 required by the sixth stage of the motor vehicle emission standard also includes the figure 1 The test system shown is arranged in parallel, the VOCs and SVOCs on-line analyzer 5 connected to the motor vehicle exhaust pipe 7 through the heating sampling line 6 (using the heating sampling line can avoid the condensation of hydrocarbons and water vapor in the...

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Abstract

In order to meet different test requirements of pollutants, the invention provides a modular motor vehicle exhaust pollutant onboard emission test platform. In addition to an onboard emission test system required by a sixth-phase motor vehicle emission standard, the modular motor vehicle exhaust pollutant onboard emission test platform also includes one or more test modules arranged side by side and communicating with a motor vehicle exhaust pipe, and can realize multi-module combined measurement according to actual test requirements. In addition, an offline component sampling system samples offline samples from the motor vehicle exhaust pipe by a proportional sampling dilution system according to a certain exhaust gas flow proportion so as to ensure the representativeness of the offline samples and fully reflect the vehicle emission characteristics during the sampling period.

Description

technical field [0001] The invention relates to a motor vehicle pollutant discharge test platform, in particular to a modular vehicle exhaust pollutant vehicle discharge test platform. Background technique [0002] With the increase of the number of motor vehicles in recent years, motor vehicle emissions have gradually become the main source of air pollution. Especially in some big cities and eastern densely populated areas, the contribution of mobile sources to the concentration of fine particulate matter is as high as 20%-40%. At the same time, since motor vehicles mostly drive in densely populated areas, exhaust emissions directly threaten human health. In order to better control the emission of motor vehicles, a lot of testing and research work on exhaust components is needed. Traditionally, motor vehicles (or engines) have been primarily simulated on laboratory benches. Although the laboratory bench test is easy to control the test conditions and the test results hav...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007G01N33/00
CPCG01M17/007G01N33/0031
Inventor 吴烨何立强胡京南李振华郑轩
Owner TSINGHUA UNIV
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