Device and method for measuring total amount of pollutants from motor vehicles and consumption of fuel

A technology for pollutant emission and fuel consumption, which is used in measurement devices, vehicle testing, and internal combustion engine testing. , The effect of reliable work and high measurement accuracy

Inactive Publication Date: 2007-08-01
WUHAN CUBIC OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method is relatively expensive in terms of equipment costs, and the daily operation and maintenance is relatively complicated, so it is not suitable for large-scale promotion and use in my country.

Method used

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  • Device and method for measuring total amount of pollutants from motor vehicles and consumption of fuel
  • Device and method for measuring total amount of pollutants from motor vehicles and consumption of fuel

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Experimental program
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Embodiment Construction

[0021] Referring to Figure 1, the inlet of the dilution sampling pipe 2 with bellmouth is connected to the exhaust pipe of the motor vehicle under test, and the outlet is connected to the fan 8. The fan 8 is controlled by the fan flow regulator 9, and the computer measurement and control system 7 controls the chassis dynamometer through the interface 1 and fan flow adjustment device 9. The interface of the flow measurement device 3, the temperature measurement device 4, the pressure measurement device 5, and the gas analysis platform 6 is connected to the computer measurement and control system 7.

[0022] The gas analysis platform 6 is located at the back end of the flow measuring device 3, the temperature measuring device 4, and the pressure measuring device 5. It takes samples from the sampling port at the back to directly measure the CO, HC, and CO in the diluted exhaust gas. 2 , NO, O 2 Equal content.

[0023] Aiming at the tested vehicles with different displacements, the pr...

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PUM

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Abstract

This invention relates to one automobile pollution discharge and fuel consumption measurement device and method, wherein, the device comprises dilution sample tube with brag, wind machine, computer control system, basic chassis test machine, flow, temperature and pressure test devices and gas analysis bench and wind flow adjust device; the method comprises the following steps: computer control system controls basic chassis power machine operation and the wind flow adjust device adjusts wind flow to get standard dilution flow to test each gas volume concentration; computing real discharge pollution volume and fuel consumption through computer control system.

Description

Technical field [0001] The invention relates to a measuring device and method for the total pollutant emission and fuel consumption of motor vehicles. Background technique [0002] With the rapid increase in automobile production and sales in recent years, the generation of a large number of automobile pollutants has become a common social problem. In some cities, motor vehicle pollution has become the city's first pollution source. The existing vehicle exhaust pollutant emission detection methods include FTP, ASM and IM240 methods. The ASM detection method is based on the pollutant emission concentration instead of the total emissions, which is unfair to vehicles with different engine displacements, and the total pollutant statistics cannot be carried out; the IM240 method test results for the three pollutants of HC, CO, and NO Compared with FTP results, the discreteness is very small and the error rate is very low. However, the equipment cost of the IM240 working condition meth...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M15/10G01M17/00
Inventor 熊友辉刘志强蒋泰毅
Owner WUHAN CUBIC OPTOELECTRONICS
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