CN105956265A - Method and system for simulating and reproducing collision accident through processed simulation working condition parameters - Google Patents
Method and system for simulating and reproducing collision accident through processed simulation working condition parameters Download PDFInfo
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- CN105956265A CN105956265A CN201610282042.8A CN201610282042A CN105956265A CN 105956265 A CN105956265 A CN 105956265A CN 201610282042 A CN201610282042 A CN 201610282042A CN 105956265 A CN105956265 A CN 105956265A
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- emulation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Abstract
The invention relates to a method and system for simulating and reproducing a collision accident through processed simulation working condition parameters. The simulation working condition parameter processed method comprises the steps of: acquiring working condition information parameters of a vehicle collision; extracting simulation working condition model parameters and simulation vehicle information model parameters of a simulation model database; assembling simulation working condition information parameters, constructing a collision accident simulation reproduction model, and generating a simulation calculation file; submitting a collision accident simulation reproduction model file to a cloud platform to carry out processing; and obtaining a collision accident simulation result file after processing, and according to a confidence coefficient, determining whether a simulation analysis result accords with the requirement. By using the method though the processed parameters, a virtual environment of an automobile collision is established and after calculation and the result are submitted, processing is carried out, so that the contrastive analysis of the real automobile collision and a simulated automobile collision is completed.
Description
Technical field
The invention belongs to simulated environment building method field, specifically one reappears car crass
Virtual reality construction method, be the environmental structure side of a kind of CAE collision simulation virtual reality
Method, the step arranged by parameter procedure is realized.
Background technology
Along with World Economics and scientific and technological developing rapidly, enterprise is in order to improve competitiveness, it is necessary to contracting
The short sawn timber R&D cycle.In engineering machinery row field, computer simulation technique starts gradually to apply
In control system, mechanical system, hydraulic system, dynamics research, and become enterprise from city
The strong instrument earned a profit in the competition of field and means.
Computer soft and hardware technology universal and improving constantly, particularly extensive supercomputing
The appearance of machine and the appearance of cloud computing platform, make vehicle collision simulation virtual reality precision and
Computational efficiency is greatly improved；In prior art, the precision of collision simulation virtual reality is low,
The vehicle collision simulation analytical calculation time is long, vehicle collision simulation analytical calculation inefficient.
Summary of the invention
The present invention is directed to problem above, it is proposed that a kind of emulation duty parameter procedure is used for colliding
The method and system that Failure Simulation reappears, generate vehicle actual collision and vehicle emulation crash analysis
Comparing result, as the basis of vehicle damage accident reproduction virtual reality.
On the one hand, the invention provides emulation duty parameter procedure for collision accident emulation weight
Existing method, including:
S1: obtain the work information parameter that vehicle collision occurs；
S2: extract emulation condition model parameter and the emulation information of vehicles mould of phantom data base
Shape parameter；
S3: assembly simulation work information parameter, builds collision accident emulation playback model, generates
Simulation calculation file；
S4: collision accident is emulated playback model file and submits to cloud platform to process；
S5: the collision accident simulation result file after process, determines emulation point according to confidence coefficient
Whether analysis result meets the requirements.
Concrete, said method also includes, the collision attitude of simulation analysis is touched with actual vehicle
Hit attitude to contrast, determine the kinestate of emulation, trajectory analysis, complete collision accident and imitate
True weight now works.
Concrete, the work information parameter that vehicle collision occurs is to be provided by video data, sound
Material, sensor data obtain.
Concrete, work information parameter, including vehicle model, vehicle mass, car speed,
Vehicle primary stress, vehicle initial strain, vehicle initial momentum, wheel of vehicle operation angle,
Ground friction coefficient, collision object location, collision thing material, collision substance amount, collision thing speed,
The parameters such as vehicle and collision thing coefficient of friction；
More specifically, emulate work information parameter, including emulation vehicle model, emulation vehicle matter
Amount, simulated vehicle speeds, emulation vehicle primary stress, emulation vehicle initial strain, emulation car
Initial momentum, emulation wheel of vehicle operation angle, emulation surface friction coefficient, emulation collision
Object location, emulation collision thing material, emulation collision substance amount, emulation collision thing speed, emulation
Vehicle and collision thing coefficient of friction.
More specifically, in described step S2, phantom data base is to collide based on finite element
The parametrization library of phantom.
On the other hand, present invention also offers a kind of emulation duty parameter procedure for colliding thing
Therefore the system that emulation reappears, including:
Data acquisition module, obtains the work information parameter that vehicle collision occurs；
Phantom data base, containing emulation condition model parameter and emulation vehicle information model ginseng
Number；
Parameter extraction module, for extract phantom data base emulation condition model parameter and
Emulation vehicle information model parameter；
Data processing module, according to emulation work information parameter, builds collision accident emulation and reappears
Model；
Cloud platform, collision accident is emulated playback model file carry out process generate collision accident imitate
According to confidence coefficient, true destination file, determines whether simulation analysis result meets the requirements.
Further, said system also includes comparing module, by the collision attitude of simulation analysis with
Actual vehicle collision attitude contrasts, and determines the kinestate of emulation, trajectory analysis, completes
Collision accident emulation reappears work.
Further, phantom data base is parameter based on finite element collision simulation model
Change library.
Due to the fact that the above technical method of employing, it is possible to obtain following technique effect: use
The method of parameter procedure, locates after setting up the virtual environment of car crass and submitting calculating and result to
Reason, completes the relative analysis of automobile real collision and automobile emulation collision.Obtain real collision
Parameter information, obtains information by it with the parametrization emulating crash data storehouse and is analyzed, carry
Rise the precision of vehicle collision simulation virtual reality, when shortening vehicle collision simulation analytical calculation
Between, improve vehicle collision simulation analytical calculation efficiency.
Accompanying drawing explanation
For clearer explanation embodiments of the invention or the technical scheme of prior art, below
Introduce the accompanying drawing used required in embodiment or description of the prior art is done one simply, aobvious
And easy insight, the accompanying drawing in describing below is only some embodiments of the present invention, for ability
From the point of view of the those of ordinary skill of territory, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other accompanying drawing.
Fig. 1 is the stream of the method that emulation duty parameter procedure reappears for collision accident emulation
Cheng Tu；
Fig. 2 is the system structure that emulation duty parameter procedure reappears for collision accident emulation
Block diagram.
Detailed description of the invention
For making the purpose of embodiments of the invention, technical scheme and advantage clearer, knot below
Close the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out the completeest
Whole description:
The invention provides the emulation duty parameter procedure side for collision accident emulation reproduction
Method, including:
S1: obtain the work information parameter that the collision of certain vehicle models occurs；
S2: obtain vehicle collision operating mode believe by video data, audio document, sensor data
Breath parameter, such as: vehicle model, vehicle mass, car speed, ground friction coefficient, collision
Object location, collision thing material, collision substance amount, collision thing speed, vehicle rub with collision thing
Figure parameters；
S3: link phantom Database parametrization vehicle simulation calculation function；
S4: assembly simulation work information parameter, will emulation vehicle model, emulation vehicle mass,
Simulated vehicle speeds, emulation vehicle primary stress, emulation surface friction coefficient, emulation collision thing
Position, emulation collision thing material, emulation collision substance amount, emulation collision thing speed, emulation car
With collision thing coefficient of friction, build collision accident emulation playback model, generate finite element scheme
Simulation calculation file；
S5: collision accident is emulated playback model file and submits to cloud platform to process；
S6: the collision accident simulation result file after process, determines emulation point according to confidence coefficient
Whether analysis result meets the requirements；
S7: the collision attitude of simulation analysis is contrasted with actual vehicle collision attitude, determines
The kinestate of emulation, trajectory analysis, complete collision accident emulation and reappear work.
Present invention also offers a kind of emulation duty parameter procedure for collision accident emulation weight
Existing system, including:
Data acquisition module, obtains the work information parameter that vehicle collision occurs；
Phantom data base, containing emulation condition model parameter and emulation vehicle information model ginseng
Number；
Parameter extraction module, for extract phantom data base emulation condition model parameter and
Emulation vehicle information model parameter；
Data processing module, according to emulation work information parameter, builds collision accident emulation and reappears
Model；
Cloud platform, collision accident is emulated playback model file carry out process generate collision accident imitate
According to confidence coefficient, true destination file, determines whether simulation analysis result meets the requirements.
Comparing module, it is right the collision attitude of simulation analysis and actual vehicle collision attitude to be carried out
Ratio, determines the kinestate of emulation, trajectory analysis, completes collision accident emulation and reappears work.
Above-mentioned phantom data base is parametrization file based on finite element collision simulation model
Storehouse.This method uses the method for parameter procedure, sets up the virtual environment of car crass and submits to
Calculate and result post processing, complete the relative analysis of automobile real collision and automobile emulation collision.
Obtain the parameter information of real collision, it is obtained information with the parametrization emulating crash data storehouse and enters
Row relative analysis, parametrization, procedure, informationalized collision simulation of setting up analyze method.
The above, the only present invention preferably detailed description of the invention, but the protection model of the present invention
Enclosing and be not limited thereto, any those familiar with the art is in the skill of present disclosure
In the range of art, according to technical scheme and inventive concept equivalent in addition thereof or change
Become, all should contain within protection scope of the present invention.
Claims (9)
1. the method that emulation duty parameter procedure reappears for collision accident emulation, it is characterised in that
Including:
S1: obtain the work information parameter that vehicle collision occurs；
S2: extract emulation condition model parameter and the emulation information of vehicles mould of phantom data base
Shape parameter；
S3: assembly simulation work information parameter, builds collision accident emulation playback model, generates
Simulation calculation file；
S4: collision accident is emulated playback model file and submits to cloud platform to process；
S5: the collision accident simulation result file after process, determines emulation point according to confidence coefficient
Whether analysis result meets the requirements.
Emulation duty parameter procedure the most according to claim 1 is for collision accident emulation weight
Existing method, it is characterised in that said method also includes, by the collision attitude of simulation analysis with
Actual vehicle collision attitude contrasts, and determines the kinestate of emulation, trajectory analysis, completes
Collision accident emulation reappears work.
Emulation duty parameter procedure the most according to claim 1 is for collision accident emulation weight
Existing method, it is characterised in that the work information parameter that vehicle collision occurs is to be provided by video
Material, audio document, sensor data obtain.
Emulation duty parameter procedure the most according to claim 1 is for collision accident emulation weight
Existing method, it is characterised in that work information parameter, including vehicle model, vehicle mass,
Car speed, vehicle primary stress, vehicle initial strain, vehicle initial momentum, wheel of vehicle
Operation angle, ground friction coefficient, collision object location, collision thing material, collision substance amount,
Collision thing speed, vehicle and collision thing coefficient of friction.
Emulation duty parameter procedure the most according to claim 1 is for collision accident emulation weight
Existing method, it is characterised in that emulation work information parameter, including emulation vehicle model, imitates
True vehicle mass, simulated vehicle speeds, emulation vehicle primary stress, emulation vehicle initial strain,
Emulate vehicle initial momentum, emulation wheel of vehicle operation angle, emulation surface friction coefficient, imitate
Really collide object location, emulation collision thing material, emulation collision substance amount, emulation collision thing speed,
Emulation vehicle and collision thing coefficient of friction.
Emulation duty parameter procedure the most according to claim 1 is for collision accident emulation weight
Existing method, it is characterised in that in described step S2, phantom data base is based on having
The parametrization library of limit unit collision simulation model.
7. emulate duty parameter procedure for the system that collision accident emulation reappears, its feature
It is, including:
Data acquisition module, obtains the work information parameter that vehicle collision occurs；
Phantom data base, containing emulation condition model parameter and emulation vehicle information model ginseng
Number；
Parameter extraction module, for extract phantom data base emulation condition model parameter and
Emulation vehicle information model parameter；
Data processing module, according to emulation work information parameter, builds collision accident emulation and reappears
Model；
Cloud platform, collision accident is emulated playback model file carry out process generate collision accident imitate
According to confidence coefficient, true destination file, determines whether simulation analysis result meets the requirements.
Emulation duty parameter procedure the most according to claim 7 is for collision accident emulation weight
Existing system, it is characterised in that said system also includes comparing module, touching simulation analysis
Hit attitude to contrast with actual vehicle collision attitude, determine that the kinestate of emulation, track divide
Analysis, completes collision accident emulation and reappears work.
Emulation duty parameter procedure the most according to claim 7 is for collision accident emulation weight
Existing system, it is characterised in that phantom data base is based on finite element collision simulation model
Parametrization library.
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| CN110009903A (en) * | 2019-03-05 | 2019-07-12 | 同济大学 | A kind of scene of a traffic accident restoring method |
| US20190244301A1 (en) * | 2018-02-08 | 2019-08-08 | The Travelers Indemnity Company | Systems and methods for automated accident analysis |
| WO2019165617A1 (en) * | 2018-02-28 | 2019-09-06 | 深圳市元征软件开发有限公司 | Vehicle-mounted apparatus and vehicle collision analysis method and device |
| CN112464381A (en) * | 2020-11-27 | 2021-03-09 | 中汽研汽车检验中心（天津）有限公司 | Automatic simulation construction method for new energy vehicle performance |
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| CN112464381A (en) * | 2020-11-27 | 2021-03-09 | 中汽研汽车检验中心（天津）有限公司 | Automatic simulation construction method for new energy vehicle performance |
| CN112464381B (en) * | 2020-11-27 | 2023-04-07 | 中汽研汽车检验中心（天津）有限公司 | Automatic simulation construction method for new energy vehicle performance |
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Application publication date: 20160921 |