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Typical speed-time driving condition construction method for rail vehicle line

A technology of driving conditions and vehicles, which is applied in special data processing applications, instruments, electrical digital data processing, etc., and can solve rare problems

Active Publication Date: 2019-07-02
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, there are many constructions and researches on the driving conditions of automobiles in my country, but there are few achievements in the construction of working conditions suitable for energy consumption analysis of rail vehicles.

Method used

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  • Typical speed-time driving condition construction method for rail vehicle line
  • Typical speed-time driving condition construction method for rail vehicle line
  • Typical speed-time driving condition construction method for rail vehicle line

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Embodiment Construction

[0029] Hereinafter, specific embodiments of the present invention will be further described in conjunction with the accompanying drawings.

[0030] The invention provides a method for constructing a typical speed-time driving condition of a rail vehicle line, referring to figure 1 shown, including the following steps:

[0031] ① Select the appropriate sampling date and number of days to collect the daily speed-time running conditions of the train on a given line, and take the daily speed-time running conditions of the train on the jth sample collection day (abbreviated as the j-th day), and divide each The daily speed-time series S(j) is divided into K sub-segments S'(k,j) according to the stopping and driving state of the train. Namely: Calculate the partial derivative of the daily speed-time series S(j) Acceleration a data is obtained; |a|>0 and velocity v=0 are selected as separation points, and the daily velocity-time series S(j) is divided into K sub-segments S'(k,j). ...

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Abstract

The invention relates to a typical speed-time driving condition construction method for a rail vehicle line. The method comprises the following steps: by selecting an appropriate sampling date and anappropriate sampling day number, the daily speed-time running working conditions of a train of a given line are acquired; the daily speed-time sequence S(j) of the jth sample collection day (jth day for short) is set to be-the daily speed of the jth sample collection day; the time sequence S (j) is divided into K sub-segments S '(k, j) according to the stop driving state of train driving; k sub-segments S '(k, j) are sequenced according to the parking time, and after unreasonable data are deleted, the daily standard speed-time sequence S(j) of the train is formed; normalization processing is carried out on the daily standard speed-time sequence Ss (j), and a daily typical speed-time sequence ST (j) is constructed, daily typical speed-time sequences ST(j) of all sampling days are integrated, and typical speed-time running working condition of the line is selected. According to the invention, the obtained speed-time working condition of the typical line can reflect the line driving characteristics of the urban rail transit train and working condition reference is provided for the performance analysis of the train.

Description

technical field [0001] The invention belongs to the technical field of simplification of working conditions of rail transit lines, and in particular relates to a method for constructing typical speed-time running working conditions of rail transportation lines. Background technique [0002] The factors that affect the energy consumption of trains in urban rail transit are mainly the operating conditions of the trains. The speed curve and weight of the train between stations determine the traction force of the train between stations, which in turn determines the energy consumption of urban rail trains between stations. However, at present, there are many constructions and researches on the driving conditions of automobiles in my country, but there are few achievements in the construction of working conditions suitable for energy consumption analysis of rail vehicles. Therefore, it is urgent to analyze the driving data of urban rail lines and construct the typical speed-time ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20G06F2119/12
Inventor 孙国斌宫保贵孙丛君吴晓刚张辉葛学超
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST