Detecting device and its detecting method for gasoline vehicle simple transient worknig condition tail gas

Abstract

The invention discloses a simple instant operating condition tail gas detecting device for gasoline motor car and its detecting method. The device includes a primary computer, driver assistant device, printer, bottom plate power measuring device and tail gas quality analyzing system, it uses ASM series of bottom plate power measuring device of German MAHA corporation and VMAS car tail gas quality analyzing system of American Sensors corporation, the system includes gas analyzing device, flux gauge and motor tachometer. The primary computer stores the operation series of the tail gas detection, which orders the driver assistant device to execute the tail gas detecting step in instant operating condition, and outputs the detected result to the printer. The method is more scientific, and it is very effective.

Description

technical field [0001] The invention relates to a measuring device and a measuring method, in particular to a simple transient exhaust gas detection device and a detection method of a gasoline vehicle. Background technique [0002] At present, the vehicle exhaust detection device usually adopts the idle speed method detection device and the ASM steady state loading condition detection device. [0003] The outstanding disadvantage of the idling speed method is that the vehicle has no load during the detection, and it is only completed under the idling condition, so it can only detect CO and HC, and cannot reflect the emission of NOX. Some vehicles with emissions reaching Euro 1 or Euro 2 have driven for only 20,000 For vehicles with more than one kilometer, the detection method of the working condition with load shows that the emission has exceeded the standard, but the CO and HC results of the idling detection are often very low, and the emission can reach the standard. In ...

AI Technical Summary

Problems solved by technology

Under normal circumstances, a vehicle with a large displacement should be a vehicle exceeding the standard, but if the concentration result is used to judge, there may be an opposite result because the concentration of a small displacement vehicle is judged to exceed the standard, and the concentration of a large displacement vehicle is judged to be up to the standard. unscientific

[0006] To sum up, there is no self-developed simple transient exhaust gas detection device for gasoline vehicles that meets the requirements of my country's simple transient operating pollutant emission detection standards in China, which is a technical blank

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