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Road spectrum acquisition system, vehicle and road spectrum acquisition method

A collection system and collection method technology, applied in the field of vehicles, can solve the problems affecting the accuracy of structural durability finite element analysis results, affecting the accuracy of load decomposition, etc., and achieve the effect of improving the accuracy of collected data and accurate road data.

Inactive Publication Date: 2017-02-01
BAIC MOTOR CORP LTD
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Problems solved by technology

The accuracy of virtual pavement directly affects the accuracy of load decomposition and the accuracy of structural durability finite element analysis results. The establishment of virtual pavement and actual pavement should be as close as possible, but the accuracy of the existing simulated road spectrum acquisition method still needs to be further improved

Method used

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  • Road spectrum acquisition system, vehicle and road spectrum acquisition method
  • Road spectrum acquisition system, vehicle and road spectrum acquisition method
  • Road spectrum acquisition system, vehicle and road spectrum acquisition method

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Embodiment Construction

[0032] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0033] Dynamic stress occurs on many components of the vehicle, causing fatigue damage, and its final failure form is fatigue fracture.

[0034] The significance of the collection of road spectrum, especially the collection of load spectrum, is to provide reliable data support for subsequent laboratory bench tests or multi-body dynamics simulation analysis, so that engineers can make accurate predictions about the fatigue life of various components of the vehicle. Therefore, road spectrum collection is very meaningful.

[0035] The road spectrum acquisition system proposed according to the embodiment of the present invention, as well as the vehicle and road spec...

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Abstract

The invention discloses a road spectrum acquisition system which comprises a GPS receiving device, a scanning device and a processing device wherein the GPS receiving device, arranged on a vehicle, includes a GPS receiver and a DGPS receiver. The GPS receiver is used for receiving the positioning data of the vehicle and correcting the positioning data according to a correction value. The DGPS receiver is used for receiving the corrected value. The scanning device, mounted on the vehicle, is used for acquiring the test pavement information. The control device is used for monitoring the movement trajectory of the vehicle based on the positioning data and forming the road spectrum according to the movement trajectory of the vehicle and the test pavement information. The road spectrum acquisition system of the invention is capable of increasing the precision of data acquisition. The invention also discloses a vehicle and a road spectrum acquisition method using the road spectrum acquisition system.

Description

technical field [0001] The present invention relates to the field of vehicles, and more specifically, to a road spectrum collection system, a vehicle using the road spectrum collection system, and a road spectrum collection method. Background technique [0002] Accurate vehicle load information is required during the vehicle development phase for body and component fatigue analysis. The traditional method to obtain vehicle load information is: road spectrum collection at the test site, and load decomposition of the collected data. However, this method is limited by road spectrum collection tests and test prototype vehicles, and it is not convenient to obtain load information in the early stage of the test. The plan is evaluated, and repeated tests caused by the status change of the prototype vehicle result in a large cost of funds and a lot of time wasted. [0003] With the development of technology, there has been a road spectrum collection method for the virtual test site...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M17/007
CPCG01M17/007
Inventor 刘明卓张立玲郭九大贾世鹏
Owner BAIC MOTOR CORP LTD
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