Determination method of vehicle exhaust emission based on different road conditions

Abstract

The invention discloses an automobile exhaust discharge determination method based on different road conditions. The method comprises the steps of: firstly fixedly placing a smoke determination instrument at an automobile exhaust pipe port for recording the discharge condition of each component of automobile exhaust in real time; simultaneously, installing a high precision difference GPS positioning device on an automobile so as to utilize collected positioning data to be combined with DICAD road aided design software for fitting and recovering a road spatial line shape in a later period, and utilizing a mobile phone vibration sensing technology is used on the automobile to record the vibration condition in the automobile driving process; and finally the automobile exhaust discharge rule under different road conditions is researched. According to the invention, the road condition is combined with exhaust discharge, the different states of automobile exhaust discharge under different road conditions can be conveniently and clearly obtained, the research about the influences of each spatial line shape parameter on the exhaust discharge is greatly facilitated, the automobile exhaust discharge determination method can be used in processes for a reference, such as road design scheme comparison and selection and road environment evaluation, and the development of the green traffic is facilitated.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust emission measurement, in particular to an automobile exhaust emission measurement method for studying the influence of different road conditions on automobile exhaust emission. Background technique [0002] With the development of social economy and the acceleration of urbanization and motorization, the number of motor vehicles has increased sharply and remains high. The rapid increase of urban car ownership not only leads to severe traffic congestion, but also produces more serious traffic environmental pollution, among which the smog that causes great inconvenience to people's lives and seriously damages people's health is the typical representative. [0003] With the increasing pollution of the traffic environment, the research on emission control strategies has gradually developed from the reduction of single-vehicle emissions such as engine improvement to the improvement of overall...

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Problems solved by technology

[0005] Existing exhaust gas measurement methods are many, but for the exhaust gas measuring devices fixedly installed on both sides of the road or at intersections, this type of measurement method has the following disadvantages: 1) It cannot track and continuously measure the exhaust emissions of specific vehicles during driving 2) It is difficult to intuitively reflect the relationship between vehicle exhaust emissions and different road conditions.

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