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Method for constructing city comprehensive working condition with turning performance

A technology of turning characteristics and construction methods, applied in the field of intelligent transportation, to achieve the effect of improving simulation accuracy and perfecting simulation conditions

Inactive Publication Date: 2015-11-11
JILIN UNIV
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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a construction method of urban comprehensive working conditions with turning characteristics to make up for the fact that the existing vehicle working condition construction methods cannot fully reflect the driving conditions of vehicles on urban roads. According to different road grades, different Turning radius to add turning driving conditions to make it more in line with the real situation of vehicles driving in the city

Method used

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  • Method for constructing city comprehensive working condition with turning performance
  • Method for constructing city comprehensive working condition with turning performance
  • Method for constructing city comprehensive working condition with turning performance

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Embodiment Construction

[0034] The inventive method will be described in further detail below in conjunction with the accompanying drawings.

[0035] Such as figure 1 As shown, select an ordinary vehicle driving in the city, and use the GPS driving recorder to collect multiple groups of vehicle driving information in the city, including vehicle travel time t, vehicle location longitude X, latitude Y, vehicle instantaneous Velocity v and other information.

[0036] Initialize the obtained information and perform data processing to obtain the driving time t, the vehicle's instantaneous velocity v (in m / s), and convert the latitude and longitude of the vehicle's location into the position under the XY coordinate system. The initial position coordinates are (0,0) .

[0037] Import the data obtained after processing into the drawing software, and draw the v-t (velocity-time) two-dimensional curve and s-t (trajectory-time) three-dimensional curve. Among them, the turning segment is the time point when t...

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Abstract

The invention discloses a method for constructing a city comprehensive working condition with a turning performance, and belongs to the field of intelligent traffics. The method comprises: obtaining vehicle driving information of a predetermined vehicle; selecting vehicle driving information of a turning motion segment; according to the vehicle driving information of the turning motion segment, obtaining a turning motion property of a turning position of the vehicle; using the obtained turning motion property to replace a working condition segment of a same-speed characteristic in the stored city comprehensive working condition so as to obtain the city comprehensive working condition with the turning performance; and according to different road grades and different turning radiuses, adding a turning driving condition into the city comprehensive working condition to enable the city comprehensive working condition to better meet the requirement of a real driving state of the vehicle in a city.

Description

technical field [0001] The invention belongs to the field of intelligent transportation, in particular to a method for constructing urban comprehensive working conditions with turning characteristics. Background technique [0002] In recent years, the Chinese government has vigorously promoted the development of new energy vehicles in accordance with the guiding ideology of building a resource-saving and environment-friendly society. In response to the call of the country, domestic car companies have launched their own hybrid electric bus products and put them into demonstration operation. For a hybrid vehicle, its control parameters have a strong dependence on the working conditions. When the control parameters are the same, the driving conditions change, and the fuel economy often varies greatly. In order to solve this problem, so that the hybrid vehicle can still have excellent fuel economy performance when the working conditions change, the working condition recognition ...

Claims

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Application Information

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IPC IPC(8): G06F19/00G08G1/00
Inventor 刘鹏孙文王庆年王军年郭梦竹魏武李修森
Owner JILIN UNIV
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