Method for constructing typical driving condition of tramcar

A technology for trams and driving conditions, which is applied in the registration/indication of vehicle operation, instrument, character and pattern recognition, etc., can solve the problem that urban rail trams do not have typical operating conditions, and achieve accurate clustering. The effect of low degree, good real degree and high accuracy

Inactive Publication Date: 2020-01-24
SOUTHWEST JIAOTONG UNIV +1
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Problems solved by technology

[0004] In order to solve the above problems, the present invention proposes a construction method of typical operating conditions of trams, which solves the problem that existing urban rail trams do not have typical operating conditions for reference, and can prov

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  • Method for constructing typical driving condition of tramcar
  • Method for constructing typical driving condition of tramcar
  • Method for constructing typical driving condition of tramcar

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[0044] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further elaborated below in conjunction with the accompanying drawings.

[0045] In this example, see figure 1 As shown, the present invention proposes a kind of tramcar typical driving condition construction method, comprises steps:

[0046]S100, by performing statistical analysis on existing tram operation data, using short-stroke data to divide, and establishing a short-stroke sample database according to selected characteristic parameters;

[0047] S200, retrieve the data in the short-stroke sample database, and use a clustering method to obtain dimension-reduced driving characteristic parameters;

[0048] S300. Generate a state transition probability matrix according to the driving characteristic parameters, and obtain accurate driving conditions by establishing a Markov chain model.

[0049] As an optimization scheme of the above-mentio...

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Abstract

The invention discloses a method for constructing a typical driving condition of a tramcar. The method comprises the steps of: performing statistical analysis on the operation data of an existing tramcar, and establishing a short travel sample database by using short travel division data according to selected feature parameters; calling the data in the short travel sample database, and obtaining dimensionality-reduced driving feature parameters by using a clustering method; generating a state transition probability matrix based on the driving feature parameters, and establishing a Markov chainmodel to obtain an accurate driving condition. By adopting the method disclosed by the invention, the operation condition with good validity and high accuracy can be given, the waste of traction energy consumption is effectively avoided, the traction energy consumption is reduced, and the design and operation control of a tramcar power system can be accurately guided.

Description

technical field [0001] The invention belongs to the technical field of trams, in particular to a method for constructing typical running conditions of trams. Background technique [0002] In the daily travel of modern society, automobiles are still the main choice of people. However, due to the disadvantages of large pollution, small transportation volume and easy to cause traffic congestion, it is imperative to vigorously develop urban rail transit. In the face of increasing traffic pressure, trams have attracted widespread attention due to their advantages such as large transport capacity, low pollution, and high energy utilization. More and more trams are put into use in cities at home and abroad, and the research on matching design, operation control and energy management strategy formulation of trams and their power systems has become a hot topic. [0003] Driving conditions are used to describe the speed-time history of vehicle driving characteristics in a specific tr...

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Application Information

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IPC IPC(8): G07C5/08G06K9/62
CPCG07C5/0808G06F18/2135G06F18/23213
Inventor 戴朝华杨振涛刘禺贝齐洪峰王轶欧
Owner SOUTHWEST JIAOTONG UNIV
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