Calculation method of light vehicle emission rate based on traffic operation data and deterioration rate
A technology of operating data and calculation methods, applied in calculation, electrical digital data processing, special data processing applications, etc., can solve the problems of increasing the complexity of dynamic changes in emissions and differences in total emissions
Active Publication Date: 2019-08-20
SUN YAT SEN UNIV
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Problems solved by technology
Even if the average speed in a certain period of time is similar, the total emissions will vary greatly due to the difference in operating conditions, and the deterioration of operating conditions at this stage has aggravated the complexity of dynamic changes in emissions
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Embodiment 1
[0039] like Figure 1-2 As shown, a light vehicle emission rate calculation method based on traffic operation data and degradation rate, including:
[0040] A: Use VSP-v to define the operating mode as the emission characterization parameter;
[0041] Use two variables / parameters of motor vehicle specific power VSP and speed v to describe the instantaneous operating conditions of the motor vehicle. The combination of motor vehicle specific power VSP and speed v is named as the operation mode OpMode. According to the motor vehicle specific power VSP and speed v The value range of the motor vehicle is divided into 23 operating modes, that is, there are 23 different motor vehicle specific power VSP and speed v value groups as shown in Table 1:
[0042] Table 1 Motor vehicle operation mode (OpMode) definition
[0043]
[0044] Among them, the 23 operating modes can be divided into five categories: OpMode 0 for braking mode, OpMode 1 for idling mode, OpMode 11-16 for low-speed...
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The invention provides a light vehicle emission speed calculation method based on traffic operation data and a deterioration rate. The method comprises the steps that a motor vehicle MOVES emission model is built by adopting an operation mode defined by VSP-v as emission characterization parameters, and then, repeated input and output testing is performed on the MOVES emission model to obtain a basic emission speed library of a light gasoline motor vehicle in China; then, deterioration rule analysis is performed on the light gasoline motor vehicle, a fitting equation of ages and pollutant concentrations is built, and the deterioration rate of the light gasoline motor vehicle is calculated; finally, by means of the conclusion obtained in the motor vehicle deterioration rules, the built basic emission speed library of the light gasoline motor vehicle is calibrated and corrected to obtain the corrected emission speed, and the method is of great significance in optimizing road operation working conditions, lowering the motor vehicle emission amount and improving the urban air quality, and has the certain referential significance in formulation and implementation of China motor vehicle pollution control measures.
Description
technical field [0001] The invention relates to the field of traffic operation management, more specifically, to a method for calculating the emission rate of light vehicles based on traffic operation data and degradation rate. Background technique [0002] Emissions from road motor vehicles have been faced with the problems of large total emission sources, deteriorating operating conditions, and extremely uneven temporal and spatial distribution. Emission reductions have been achieved through macroscopic static control measures such as eliminating "yellow-label vehicles" and improving motor vehicle emission standards and fuel standards. It is difficult to solve the problem caused by the unevenness of traffic emissions, so that the traffic pollution control measures must be changed from extensive to refined. For this reason, it is necessary to establish a high spatial and temporal resolution, which can reflect the operating conditions and conditions of road traffic flow. The...
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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 刘永红廖文苑陈泳钊
Owner SUN YAT SEN UNIV