CN106932209B - Automotive airbag accidentally acts on detection method - Google Patents
Automotive airbag accidentally acts on detection method Download PDFInfo
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- CN106932209B CN106932209B CN201710209100.9A CN201710209100A CN106932209B CN 106932209 B CN106932209 B CN 106932209B CN 201710209100 A CN201710209100 A CN 201710209100A CN 106932209 B CN106932209 B CN 106932209B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
- G01M17/0078—Shock-testing of vehicles
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Abstract
The present invention relates to vehicle accessory performance detection fields more particularly to a kind of automotive airbag to detect test method.A kind of automotive airbag mistake effect detection method, one rigid retaining walls and movable platform for being connected with simulation road shoulder arm barrier are set, by automobile parking to be detected in movable platform, driving mechanism drives detection automobile to hit with accidentally speed of action and simulation road shoulder arm barrier, hits movable platform after occurring and moves along original direction of motion until kinetic energy exhausts；It hits to be denoted as if the airbag-releasing of automobile to be detected after occurring and accidentally act on, determine that the automotive airbag misses effect propety and do not pass through.The test mode that vehicle of the present invention is actively hit being capable of the shock kinetic energy of simulating vehicle in actual use completely, simultaneously made in such a way that lubricant layer is set flying floor after hitting with Vehicles separation, further reduce interference of the detection device to test result, the reliability for improving testing result enables test result more accurately to evaluate the mistake action characteristic of air bag.
Description
Technical field
The present invention relates to vehicle accessory performance detection fields more particularly to a kind of automotive airbag to detect test method.
Background technique
Air bag is the important component in automobile passive safety system, marginal testing be during airbag design extremely
One of important index checking, air bag in the normal driving process of vehicle, it is quick-fried in case of leak source, put late it is quick-fried, overdue it is quick-fried all
It can cause greatly to injure to occupant.The opinion of mandatory standard regulation solicits original text " automobile air-bag system mistake at present
The method and requirement of Experiment on Function " it is issued, wherein test method mainly includes three classes: static test, roadblock test and thick
Rough road test is tested.Test for side airbag of automobile is mainly basketball bump test and bicycle simulation bump test, both
Under the premise of vehicle is in static, vehicular sideview is impacted by collision impact device, checks the mistake work safety of side air bag.Its
His dynamic test is all that vehicle frontal drives by different road surfaces, carries out the test that air bag accidentally acts on.
Existing basketball bump test is that test vehicle stopping is placed in surface water plane, standard official basket ball, weight
0.6kg~0.65kg, circumference 750mm~780mm, 60 kPa of relative barometric pressure are measured, it is vertical with the speed of ± 1 km/h of 60 km/h
Bump test B pillar transverse direction middle vertical plane, centre of sphere height are located in the horizontal plane of 50 mm of test vehicle sill strip or more.
Bicycle simulation bump test is parked in test vehicle is static in surface water plane, and radius is touching for 350mm
Impactor is hit with the speed of ± 1 km/h of 15 km/h, impacts side air bag sensor position, the middle vertical plane and side air bag of impactor pass
Sensor center is overlapped, and deviation is ± 25mm；Height is hit for according to the vehicular sideview of ± 10 mm of 360 mm of surface water plane；Impact
Energy is ± 50 J of 200 J.
Therefore, traditional air bag misses vehicle in working flank test and is at stationary state.And in actually driving, vehicle
Frequent occurrence, this operating condition has certain degree of danger to the situation of side low speed impact road shoulder, but does not need Vehicular air bag point
It is quick-fried to work, and the effect of the mistake of air bag can generate serious injury to occupant, and the effect of the mistake of current stationary state tries
Proved recipe method can not influence of the kinetic energy that has of simulating vehicle to air bag reliability completely.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of automotive airbag, accidentally effect detection method, this method pass through winged
Row floor drives vehicle that its wheel is made laterally to strike simulation road shoulder arm barrier, and the test mode that vehicle is actively hit being capable of complete mould
The shock kinetic energy of quasi- vehicle in actual use, at the same made in such a way that lubricant layer is set flying floor after hitting with
Vehicles separation further reduces interference of the detection device to test result, solves in the prior art, actively using impulse member
Hit static vehicle, can not simulating vehicle itself kinetic energy, influence the defect of test result.
The present invention is implemented as follows: a kind of automotive airbag accidentally acts on detection method,
A rigid retaining walls are arranged in S1, and rigid connection has simulation road shoulder arm barrier in the rigid retaining walls；
One movable platform is set, and the movable platform is mobile to rigid retaining walls under driving mechanism drive；
Setting misses speed of action；
S2, by automobile parking to be detected, setting one lubricates in movable platform and between automobile to be detected and movable platform
Layer, driving mechanism drives movable platform and automobile to be detected to move with accidentally speed of action to rigid retaining walls, until automobile to be detected
The wheel of side is hit with simulation road shoulder arm barrier, is hit movable platform after occurring and is moved along original direction of motion until kinetic energy
It exhausts；It hits to be denoted as accidentally to act on if the airbag-releasing of automobile to be detected after occurring and air bag of automobile to be detected is accidentally acted on this
Performance is determined.
The accidentally speed of action is 10km/h, is had between the movable platform and automobile to be detected by lubricant layer quiet
Coefficient of friction is 0.04 ± 0.005, and the thickness of the simulation road shoulder arm barrier is higher than the rubber tyre edge of automotive wheel to be detected,
The lower edge for simulating road shoulder arm barrier is higher than the supporting surface of movable platform, and the upper level of simulation road shouldered wall barrier is apart from movable platform branch
Support face height is 100 ~ 150mm.
It further include step S3, statistics misses activity ratio after S2 step is repeated, and sets qualification rate, when accidentally activity ratio is more than
Then determine that the air bag mistake effect propety of automobile to be detected is unqualified when qualification rate, mistake activity ratio=airbag-releasing number/(air bag is beaten
It opens number+air bag and is not switched on number).
Absorption cell is additionally provided in the rigid retaining walls, movable platform moves shock along original direction of motion after shock occurs
Kinetic energy is exhausted to absorption cell.
The absorption cell is hollow aluminum pipe.
The lubricant layer is two layers of Teflon plate, and being coated with lubricating oil between two layers of Teflon plate makes between two layers of Teflon plate
Confficient of static friction is 0.04 ± 0.005.
In step S2, the driving mechanism is protected after driving movable platform and automobile to be detected uniformly to accelerate to accidentally speed of action
At the uniform velocity state is held until the wheel of automobile to be detected is hit with simulation road shoulder arm barrier.
It is opposing stationary between the movable platform and automobile to be detected before hitting generation in step S2, occur hitting
Opposite sliding between the movable platform and automobile to be detected afterwards.
Automotive airbag of the present invention accidentally acts on detection method and drives vehicle that its wheel is made laterally to strike mould by flying floor
Quasi- road shoulder arm barrier, the test mode that vehicle is actively hit can the shock kinetic energy of simulating vehicle in actual use completely, simultaneously
Flying floor is set, with Vehicles separation, to further reduce detection device to examination after hitting in such a way that lubricant layer is set
The interference for testing result improves the reliability of testing result, and test result is enable more accurately to evaluate the mistake effect of air bag
Characteristic.
Detailed description of the invention
Fig. 1 is the flow diagram that automotive airbag of the present invention accidentally acts on detection method；
Fig. 2 is that automotive airbag of the present invention accidentally acts on structure of the detecting device schematic diagram used in detection method；
In figure: 1 rigid retaining walls, 2 simulation road shoulder arm barriers, 3 movable platforms, 4 automobiles to be detected, 5 lubricant layers, 6 absorption cells.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after having read the content of the invention stated, those skilled in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiment 1
As shown in Figure 1, 2, a kind of automotive airbag accidentally acts on detection method,
A rigid retaining walls 1 are arranged in S1, and rigid connection has a simulation road shoulder arm to hinder 2 in the rigid retaining walls 1；
One movable platform 3 is set, and the movable platform 3 is under driving mechanism drive to rigid retaining walls mobile 1；
Setting misses speed of action；
Automobile 4 to be detected is parked in movable platform 3 and is arranged one between automobile 4 to be detected and movable platform 3 by S2
Lubricant layer 5, driving mechanism drive movable platform 3 and automobile to be detected 4 to move with accidentally speed of action to rigid retaining walls 1, until to
The wheel and simulation road shoulder arm barrier 2 for detecting 4 side of automobile are hit, and movable platform 3 is along original direction of motion after hitting generation
Movement is exhausted until kinetic energy；It hits and is denoted as accidentally effect after occurring if the airbag-releasing of automobile 4 to be detected with this to vapour to be detected
The air bag of vehicle misses effect propety and is determined；
In the present invention, one-time detection is only carried out under normal conditions, such as airbag-releasing in this time detection, is then determined to be detected
It is unqualified that the air bag of automobile misses effect propety.
But the performance of air bag can also be determined by the way of repeated detection；It is missed that is, being counted after S2 step is repeated
Activity ratio, and qualification rate is set, then determine that the air bag of automobile to be detected misses effect propety not when accidentally activity ratio is more than qualification rate
Qualification misses activity ratio=airbag-releasing number/(airbag-releasing number+air bag is not switched on number)；Under normal conditions, according to air bag
Performance standard requires set qualification rate to be 1%, and mistake activity ratio=airbag-releasing number/(airbag-releasing number+air bag is not switched on secondary
Count), such as accidentally activity ratio < 1%, then it is assumed that the air bag of the automobile to be detected is qualified, such as misses activity ratio >=1%, then it is assumed that this is to be detected
The air bag of automobile is unqualified.
In the present embodiment, preferably, the movable platform 3 is flying floor；
In order to guarantee the comparativity of testing result and the versatility of standard setting, in the present invention, the driving mechanism band
Dynamic movable platform and automobile to be detected uniformly accelerate to after accidentally speed of action the state that remains a constant speed until the wheel of automobile to be detected
It is hit with simulation road shoulder arm barrier；It requires, occurs between the preceding movable platform and automobile to be detected relatively hitting simultaneously
It is static, the opposite sliding between the movable platform and automobile to be detected after hitting generation；
In the present embodiment, conventional speeds setting when being collided according to wheel in routine use and road shoulder misses speed of action,
Preferably, the accidentally speed of action is 10km/h, have between the movable platform and automobile to be detected by lubricant layer
Confficient of static friction is 0.04 ± 0.005, and the thickness of the simulation road shoulder arm barrier is higher than the rubber wheel tyre bead of automotive wheel to be detected
Edge, the lower edge of simulation road shoulder arm barrier are higher than the supporting surface of movable platform, and the upper level distance activity of simulation road shouldered wall barrier is flat
Platform supporting surface height is 100 ~ 150mm.
In the present invention, it is used for the ease of the recycling of movable platform 3, to accelerate the speed being repeatedly detected, the rigidity
It is additionally provided with absorption cell 6 on barricade, hits movable platform 3 after occurring and moved along original direction of motion and strike absorption cell 6 and exhaust
Kinetic energy；In the present embodiment, avoid preferably, the absorption cell 6 be hollow aluminum pipe, disappeared by the crumple energy-absorbing of hollow aluminum pipe
Except the kinetic energy of movable platform 3, in order to the reset of movable platform 3.
In the present embodiment, the lubricant layer is two layers of Teflon plate, and being coated with lubricating oil between two layers of Teflon plate makes two layers
There is required lubricating ability between Teflon plate；Lubricating requirement and accidentally speed of action, vapour to be detected at this in the present invention
The self weight of vehicle, test site size are related, the requirement of lubrication be can in the range of test site by flying floor together with to
When detecting after automobile accelerates to accidentally speed of action and at the uniform velocity advance, and can guarantee that wheel and simulation road shoulder arm barrier are hit, fly
Floor can reduce in the sliding friction stage with respect to sliding and as far as possible to the frictional force of automobile to be detected under effect of inertia；
It in the present embodiment, is 0.04 ± 0.005 as preferred confficient of static friction.
Claims (8)
1. a kind of automotive airbag accidentally acts on detection method, it is characterized in that:
A rigid retaining walls are arranged in S1, and rigid connection has simulation road shoulder arm barrier in the rigid retaining walls；
One movable platform is set, and the movable platform is mobile to rigid retaining walls under driving mechanism drive；
Setting misses speed of action；
A lubricant layer is arranged in automobile parking to be detected by S2 in movable platform and between automobile to be detected and movable platform,
Driving mechanism drives movable platform and automobile to be detected to move with accidentally speed of action to rigid retaining walls, until automobile side to be detected
Wheel with simulation road shoulder arm barrier hit, hit occur after movable platform along original direction of motion move until kinetic energy consumption
To the greatest extent；It hits to be denoted as accidentally to act on if the airbag-releasing of automobile to be detected after occurring and functionality is missed to the air bag of automobile to be detected with this
It can be carried out judgement.
2. automotive airbag as described in claim 1 accidentally acts on detection method, it is characterized in that: the accidentally speed of action is 10km/
H, the confficient of static friction having between the movable platform and automobile to be detected by lubricant layer are 0.04 ± 0.005, the mould
The thickness of quasi- road shoulder arm barrier is higher than the rubber tyre edge of automotive wheel to be detected, and it is flat that the lower edge of simulation road shoulder arm barrier is higher than activity
The supporting surface of platform, the upper level of simulation road shouldered wall barrier are 100 ~ 150mm apart from movable platform supporting surface height.
3. accidentally effect detection method is repeated automotive airbag as described in claim 1 it is characterized in that: further including step S3
Statistics misses activity ratio after S2 step, and sets qualification rate, and the gas of automobile to be detected is then determined when accidentally activity ratio is more than qualification rate
Capsule mistake effect propety is unqualified, accidentally activity ratio=airbag-releasing number/(airbag-releasing number+air bag is not switched on number).
4. the automotive airbag as described in claim any one in claim 1 ~ 3 accidentally acts on detection method, it is characterized in that: described
It is additionally provided with absorption cell in rigid retaining walls, hits movable platform after occurring and moved along original direction of motion and strike absorption cell and exhaust
Kinetic energy.
5. automotive airbag as claimed in claim 4 accidentally acts on detection method, it is characterized in that: the absorption cell is hollow aluminum pipe.
6. the automotive airbag as described in claim any one in claim 1 ~ 3 accidentally acts on detection method, it is characterized in that: described
Lubricant layer is two layers of Teflon plate, and lubricating oil is coated between two layers of Teflon plate makes confficient of static friction between two layers of Teflon plate
0.04±0.005。
7. the automotive airbag as described in claim any one in claim 1 ~ 3 accidentally acts on detection method, it is characterized in that: step
In S2, the driving mechanism state that remains a constant speed after driving movable platform and automobile to be detected uniformly to accelerate to accidentally speed of action is straight
Wheel to automobile to be detected is hit with simulation road shoulder arm barrier.
8. the automotive airbag as described in claim any one in claim 1 ~ 3 accidentally acts on detection method, it is characterized in that: step
Opposing stationary between the movable platform and automobile to be detected before hitting generation in S2, the activity is put down after hitting generation
Opposite sliding between platform and automobile to be detected.
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| CN201710209100.9A CN106932209B (en) | 2017-03-31 | 2017-03-31 | Automotive airbag accidentally acts on detection method |
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| CN201710209100.9A CN106932209B (en) | 2017-03-31 | 2017-03-31 | Automotive airbag accidentally acts on detection method |
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| CN106932209B true CN106932209B (en) | 2019-02-15 |
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| CN112606799B (en) * | 2021-01-12 | 2022-09-06 | 南京青橄榄网络科技有限公司 | Double-wheel drive automobile tire surface cleaning and abrasion degree detection device |
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