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Vehicle side impact simulation test structure and test method thereof

A side impact and simulation test technology, applied in vehicle testing, impact testing, machine/structural component testing, etc., can solve the problems of expensive prototype vehicles, roughness, product development obstacles, etc., to achieve high test efficiency and save development costs. , the effect of improving the accuracy

Active Publication Date: 2017-02-08
JINZHOU JINHENG AUTOMOTIVE SAFETY SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Or, to simplify it further, only simulate the relative motion between the side structure of the body-in-white and the seat, and simulate the side impact, which is generally simulated by using an acceleration slide table, which is a very rough method, because the The amount of intrusion and the intrusion speed of the side have not been simulated, which is very different from the actual test results
[0003] At the same time, for the research and development of side collision of vehicles, there are many collision forms, such as moving deformable barrier (MDB-Moving Deformation Barrier), side pillar collision, Chinese national standards, European regulations, Chinese NCAP, Euro NCAP, American standards, etc. The traditional side simulation structure mentioned above will not be able to simulate effectively, which is a major obstacle to product development
In addition, in the early stage of vehicle development, without the vehicle crash test data, the automobile factory cannot verify and judge whether the crashworthiness of the vehicle side body structure meets the requirements, and the vehicle crash test is required. Therefore, before the official body mold is opened , a large number of rapid prototyping parts and soft modules are used to make test prototypes, and vehicle-level prototypes at this stage are very expensive

Method used

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  • Vehicle side impact simulation test structure and test method thereof
  • Vehicle side impact simulation test structure and test method thereof
  • Vehicle side impact simulation test structure and test method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 , figure 2 As shown, the vehicle side impact simulation test structure includes an acceleration slide 10, a slide track 1 and a body-in-white 8, and the bottom of the body-in-white 8 is respectively provided with support plates 6 where the front and rear axles should be located. A crossbeam 7 perpendicular to the slide track 1 is connected between the support plates 6. The crossbeam 7 is slidably arranged above the slide track 1 and makes the bottom of the body in white 8 parallel to the horizontal plane. The mutual fixing of the body in white 8 and the support plate 6 The position is consistent with the position where the body and chassis system of the actual vehicle are connected. The support plate 6 is parallel to the slide track 1 and the end of the support plate 6 close to the acceleration slide 10 is respectively connected with a brake mechanism 4 using a rope 5, the rope 5 is parallel to the slide track 1, and the brake mechanism 4 is transmitt...

Embodiment 2

[0035] Such as Figure 4 As shown, the bullet car is an MDB angle bullet car 9. For the angled side impact simulation, taking the American standard FMVSS 214 as an example, the MDB angled bullet car 9 has an angle. Similarly, the MDB angled bullet car 9 is counterweighted according to the standard definition. The symmetrical center line of the body-in-white 8 in the figure and The center line of symmetry of the acceleration slide 10 is at an included angle of 63 degrees, and the body-in-white 8 is fixed on the support plate 6 at a standard defined angle. Similarly, the support plate 6 is parallel to the horizontal plane, that is, it can slide on the horizontal plane, and is controlled by the rope 5 and the brake. Mechanism 4 traction, brake mechanism 4 can set the traction force when releasing the rope 5, in the specific test, the set traction force can be the actual friction force between the wheel and the ground, can be obtained by actual measurement, and can also be obtaine...

Embodiment 3

[0041] Such as Figure 6 As shown, the bullet cart is a pillar-impact bullet cart 11, the pillar-impact bullet cart 11 is integrated with the acceleration slide 10, and the collision execution part is a collision pillar. Others are the same as embodiment 1.

[0042] For the side column impact test, such as the test of EURO-NCAP (European New Car Evaluation), that is, the collision column is stationary, and the vehicle collides with the collision column at a specified speed and angle, which is the same as the above-mentioned dynamic deformable barrier ( MDB) impacting the side of a stationary vehicle is different, but can also be simulated with the present invention. Such as Figure 6 , Figure 7 As shown, the acceleration slide table 10 and the column-impact bullet car 11 are always connected together. The front end of the column-impact bullet vehicle 11 is provided with a collision column with a size specified in the standard. When the set collision speed V0 is reached, th...

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Abstract

The invention relates to a vehicle side impact simulation test structure and a test method thereof. The vehicle side impact simulation test structure comprises an acceleration sliding table, a sliding table track and a white vehicle body, and is characterized in that the bottom part of the white vehicle body are provided with supporting plates at positions where a front shaft and a rear shaft are supposed to be arranged, a cross beam is connected between the supporting plates, the cross beam is slidably arranged above the sliding table track and enables the bottom part of the white vehicle body to be parallel to the horizontal plane, the supporting plates are parallel to the sliding table track, the end, which is close to the acceleration sliding table, of each supporting plate is connected to a braking mechanism by using a rope, the sliding table track between the acceleration sliding table and the white vehicle body is additionally provided with a bullet vehicle, the white vehicle body and the supporting plates are additionally provided with counterweights used for adjusting the vehicle weight and the mass location of the vehicle in the vertical direction, and the white vehicle body is equipped with vehicle door interior trim parts, a seat and an impact test dummy at the impact side according to test requirements. The vehicle side impact simulation test structure can simulate the vehicle side impact process more accurately, can be aimed at vehicle side impact test modes under various regulations and standards in particular, and is conducive to research and development of passive safety products.

Description

technical field [0001] The invention relates to the technical field of automobile safety, in particular to a vehicle side collision simulation test structure and a test method thereof. Background technique [0002] In the passive safety development of automobiles, the acceleration slide table and deceleration slide table are usually used to simulate the side collision of the vehicle, and the deformation or intrusion amount, deformation speed or intrusion speed of the vehicle side structure in the collision test is simulated to realize the The simulation of vehicle side collision, this method is to cut the vehicle body into sections, and use some energy-absorbing materials to simulate the intrusion amount and intrusion speed in each section. At the same time, the movement of the seat and the vehicle side The relative motion of the structure is simulated, which is generally simulated by a deceleration slide table. This method requires a large number of calibration tests to com...

Claims

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Application Information

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IPC IPC(8): G01M7/08G01M17/007
CPCG01M7/08G01M17/007
Inventor 刘崇庆
Owner JINZHOU JINHENG AUTOMOTIVE SAFETY SYST
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