Man-machine-integrated method for assessing odor sources in car

Abstract

The invention is applicable to the technical field of car odor detection and provides a method for assessing odor sources in a car. The method includes: preprocessing the whole car in different sealedcabins and under different conditions; collecting the gas sample in each compartment of the car after the preprocessing; using a gas chromatograph to perform substance separation on the each gas sample to obtain two paths of gas sample, processing one path with a gas chromatography and mass spectrometer to acquire material concentration-time spectrum, subjecting the other path to manual odor-intensity smelling and distinguishing, and using a smelling and distinguishing instrument to generate odor intensity-time spectrum; acquiring the time point when the odor intensity is larger than preset intensity, and searching for substances which cause the odor of the compartments and are called odorous substances from the material concentration-time spectrum on the basis of the time point. Comparedwith a subjective assessing method referencing VAD270, the man-machine-integrated method for assessing the odor sources in the car is high in assessment standard consistency, real and objective.

Description

technical field [0001] The invention belongs to the technical field of automobile braking, and provides a method for evaluating the source of peculiar smell in automobiles combined with man and machine. Background technique [0002] With the enhancement of consumers' awareness of environmental protection, the air quality in the car is more and more concerned by consumers. Now most of the OEMs borrow or refer to the subjective evaluation method of VDA270 for the detection of odor. The subjective evaluation method is due to the difference in the evaluation scale. The problem is that the repeatability is not ideal, and when checking the source of the peculiar smell, a large number of experimental samples and the number of experiments are often required, and the evaluation efficiency is not high and the problem is not accurate. Contents of the invention [0003] The embodiment of the present invention provides a man-machine combined method for evaluating the source of peculiar...

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Problems solved by technology

[0003] The embodiment of the present invention provides a man-machine combined method for evaluating the source of peculiar smell in the car, aiming to solve the problem of borrowing or referring to the subjective evaluation method of VDA270 to evaluate the smell in the car. A large number of experimental samples and testing times are required, and the evaluation efficiency and accuracy are not high

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