CN1123748A - Airbag testing apparatus and a method therefor - Google Patents
Airbag testing apparatus and a method therefor Download PDFInfo
- Publication number
- CN1123748A CN1123748A CN95118623A CN95118623A CN1123748A CN 1123748 A CN1123748 A CN 1123748A CN 95118623 A CN95118623 A CN 95118623A CN 95118623 A CN95118623 A CN 95118623A CN 1123748 A CN1123748 A CN 1123748A
- Authority
- CN
- China
- Prior art keywords
- airbag
- impact
- acceleration pick
- air bag
- ecu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L17/00—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies
- G01L17/005—Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies using a sensor contacting the exterior surface, e.g. for measuring deformation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0052—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to impact
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Air Bags (AREA)
Abstract
An airbag testing apparatus includes a digital crash signal generating unit for generating a digital crash signal connected with a shock controller, a shock generator connected to the shock controller, an acceleration-sensor supporting unit for transmitting the vibration produced from the shock generator to an acceleration sensor, an ECU test unit for mounting an ECU of the airbag system, a tank tester internally having a gas generator and an airbag module of the airbag system to be tested to which a pressure sensor and a displacement sensor are installed, and an output unit connected with the pressure sensor and displacement sensor. Also, an airbag testing method is provided, thereby enabling to test performance of the airbag system while requiring low cost.
Description
The present invention relates to a kind of airbag proving installation and test method, particularly relate to a kind of airbag proving installation and test method that need not be directly installed on the performance that just can test airbag on the vehicle.
In order to protect the passenger in the vehicle to develop various devices.Air bag system is wherein a kind of, and when collision took place, it can prevent that the passenger from directly bumping against on the car body, protects the passenger thus.This air bag system comprises a crash sensor such as acceleration pick-up, one are by receiving from the signal of this crash sensor whether launch the electronic control package (to call " ECU " in the following text) of airbag and acceptance from the airbag deployment signal of the ECU gas generator with the gas that produces the expansion airbag with decision.In addition, the gas that is produced by gas generator also launches an airbag module.This gas generator is made of a booster and a charging blower.Airbag deployment signal from ECU is sent to this booster with this booster of explosion, and this booster causes the charging blower explosion again, produces the gas that launches airbag thus.
Usually, air bag system should satisfy 5 " the benchmark starting point of 30ms, and from collision begin to the times that airbag all launches to be spent should be in 55 to 90ms scopes.When airbag all launched, the pressure of airbag was in 30 to 50psi scopes.According to the United States Federal Government Motor Vehicle Safety Standard, when the vehicle collision that travels with 12mph and more speed, airbag must launch, but when being lower than the collision happens that 8mph speed travels, airbag does not launch.
Whether satisfy above-mentioned standard in order to test airbag, will test usually, for example slide plate test (sled test).In slide plate test, need construct body structure, so that air bag system to be installed, make the direct impact under various speed and direction of this body structure.In order to finish this slide plate test, need about 30 body structures at least, testing cost is increased.
The trend that airbag is installed on the vehicle remains unchanged, and under the situation that vehicle changes, the need development is a kind of can test airbag performance and the low device of cost.
The present invention is exactly in order to address the above problem.First purpose of the present invention provides a kind of energy and eliminates the slide plate test, perhaps can significantly reduce the airbag proving installation of slide plate testing time.
Second purpose of the present invention provides the airbag test method that a kind of energy is eliminated the slide plate test or can be significantly reduced the slide plate testing time.
Owing to adopt airbag proving installation of the present invention and method, can test the performance of airbag with lower cost.
Above-mentioned purpose of the present invention and other advantage will be by becoming more clear below in conjunction with the accompanying drawing detailed description of the preferred embodiment, in the accompanying drawings:
Fig. 1 is the transparent view of the basic structure of expression airbag proving installation of the present invention;
Fig. 2 is the graph of relation that expression is used pressure in the airbag that airbag proving installation of the present invention obtained and concerned between the time;
Fig. 3 is the diagram of circuit of expression airbag test method of the present invention.
Below with reference to Fig. 1 and 2 in detail embodiment according to airbag proving installation of the present invention is described in detail.
In Fig. 1, a digital signal generation part 12 comprises a data input block 14, a data memory cell 15 and a digital signal processor (DSP) 16.The impact pulse data that produced by the actual vehicle Collision test are provided by data input cell 14, and are existed in the data-storing unit 15.The impact pulse data, for example the acceleration pulse data are obtained by the test of actual measurement vehicle collision.The mouth that digital signal produces part 12 links to each other with an input end that impacts controller 18.Input that digital signal processor 16 treatment of selected are selected or the crash data that is stored, and the respective digital collision alarm of this data selected delivered to impact controller 18.
The mouth that impacts controller 18 is connected with a surge generator 20, and this producer 20 is made of with a vibrator 24 that links to each other with DC machine 22 DC machine 22 that links to each other with the mouth that impacts controller 18.Impact the digital collision alarm of controller 18 response inputs and a control signal is provided for DC machine 22.When the rotating speed of DC machine 22 changes along with control wave, the also corresponding change of the vibration of vibrator 24.
The vibration of vibrator 24 is passed on the support 26, and this bracket supports constitutes the acceleration pick-up 28 of air bag system.According to the vibration of vibrator 24, acceleration pick-up 28 provide one with the same or analogous impact pulse of impact pulse data to the ECU that constitutes air bag system, these impact pulse data have offered digital signal generation part 12.
The ECU that constitutes air bag system inserts in the ECU box 30, so that receive the impact pulse from acceleration pick-up 28.Whether ECU launches airbag according to air bag system in-to-in computing decision.If decision launches airbag, ECU produces an energizing signal and gives a booster (not shown), and this booster is located in the gas generator 34, and this gas generator is contained in the high pressure vessel 46.
One observation window of being made by bullet-resistant glass 42 is arranged on the side of high pressure vessel 46, and this observation window occupies all or part of of this side.Pressure sensor 38 that is used for detecting high pressure vessel 46 internal pressures and one are used for detecting the expand displacement pickup 40 of airbag module 36 change in location that cause and are installed on the high pressure vessel 46.A mounting bracket 32 that is used to install gas generator 34 gentle bag mould spares 36 is located at the inside of high pressure vessel 46.
Observation window 42 can make the testing staff see the inside of high pressure vessel 46, and takes the photo of airbag expansion phase, whether can protect the passenger with the expansion of determining airbag.When expanding, the airbag pressure inside detects high pressure vessel 46 internal pressures by pressure sensor 38 and calculates indirectly.Displacement pickup 40 detects the change in location of airbag along with the time of expansion when airbag expands.
The mouth of pressure sensor 38 and displacement pickup 40 is connected with output unit 44, and this output unit 44 is made of a read out instrument and/or type printer.In case of necessity, this output unit 44 can also comprise a storing apparatus, with storage pressure data and displacement data.
On the other hand, can adopt a function generator to replace digital signal generation part 12, impact controller 18, surge generator 20 and acceleration pick-up 28, so that provide impact pulse to the ECU that constitutes air bag system.
In addition, for being easy to test airbag module 36 can be installed in high pressure vessel 46, but high pressure vessel 46 is designed to have the volume identical with tested airbag, not have the test of airbag module with this.In this case, do not need displacement pickup 40, and be air pressure in the airbag by the force value that pressure sensor 38 records.
Fig. 2 has expressed internal pressure and the time relation diagram of curves that uses the resulting airbag of airbag proving installation of the present invention.For effective protection passenger, the maximum pressure of airbag should be in 30 to 50psi scope, and begins to reach the peaked time in 55 to 90ms scope to pressure from collision.Can determine by this relation curve whether tested air bag system satisfies standard.
Below, describe airbag test method of the present invention in detail with reference to accompanying drawing.
Fig. 3 is a diagram of circuit, represents airbag test method of the present invention.In step S1, accept the impact pulse data by data input cell 14, and be stored in the data-storing unit 15.These impact pulse data are taken from the data that various crash tests obtains.In step S2, the impact pulse data of input are handled by digital signal processor 16, convert to impact controller 18 acceptables numeral collision alarm.
Digital collision alarm from digital signal processor 16 is provided to impact controller 18.In step S3, to impact controller 18 and impact control wave according to the digital collision alarm generation of input, this pulse is sent to surge generator 20.In step S4, surge generator 20 produces shock pulse corresponding to the impact pulse data of accepting in step S1.
The shock pulse that produces in step S4 is detected by acceleration pick-up 28, and is admitted to ECU from the shock pulse of acceleration pick-up 28, so that whether decision launches airbag in step S5.If determine not launch airbag, program is got back to step S1.When determining to launch airbag, energizing signal is admitted to the booster that is installed in the gas generator 34 in the high pressure vessel 46, to launch airbag, i.e. step S6.
In step S7, detect and follow airbag to launch airbag air pressure and the displacement that is produced.In step S8, output detected airbag air pressure and displacement data in step S7.
Adopt airbag proving installation of the present invention and method, do not need to be used to test the slide plate test of airbag performance, the number of times of slide plate test in other words significantly reduces.Therefore, can test the performance of airbag with lower cost.
Though the present invention at length illustrates and describes with reference to certain embodiments, should be understood that this area professional can make various variations in form and details in design that does not exceed claims of the present invention and limited and scope.
Claims (6)
1, a kind of proving installation that is used to test the air bag system performance, described air bag system comprises: an acceleration pick-up; An electronic control package (ECU) that whether launches according to input acceleration signal deciding airbag with said acceleration pick-up bonded assembly; One produces gas generator and airbag module that is expanded by the said gas from said gas generator that launches airbag gas with said ECU bonded assembly according to the deployment signal from ECU, and described proving installation comprises:
Impact pulse data that processing is obtained by the actual vehicle collision detecting device and the digital collision alarm generating means that produces a digital collision alarm;
One be connected with said digital collision alarm generating means, according to the impact controller that produces control wave from the said digital collision alarm of said digital collision alarm generating means;
One be connected with said impact controller, according to the vibrative surge generator of said control wave from said impact controller;
Be used to support the said acceleration pick-up that constitutes said tested air bag system with the transfer of vibration that will produce from said surge generator acceleration pick-up bearing set to said acceleration pick-up;
Said ECU bonded assembly connecting device with said acceleration pick-up and the said tested air bag system of formation;
One within it portion be provided with a high pressure vessel that is used to install the support of the gentle bag mould spare of said gas generator that forms said tested air bag system;
One is sent to said gas generator when launching said airbag module when the said deployment signal from said ECU, is used to detect the pressure sensor of said airbag module pressure;
One is sent to said gas generator when launching said module when the said deployment signal from said ECU, is used to detect the displacement pickup of said airbag module displacement;
Be connected with displacement pickup with said pressure sensor, be used to export the measured force value and the output unit of shift value.
2, proving installation according to claim 1, wherein, said digital collision alarm generating means comprises: be used to receive the input media of the said impact pulse data that obtained by said actual vehicle crash tests, the digital signal processor that is used to store the storing apparatus of said impact pulse data and is used to handle said impact pulse data.
3, proving installation according to claim 1, wherein, said surge generator comprises: one is connected the vibrative vibrator of turning force that produces with according to said DC machine with said impact controller bonded assembly DC machine with one with said DC machine.
4, proving installation according to claim 1, wherein, said high pressure vessel is provided with a transparent windows on one side all or part of, so that see the inside of said high pressure vessel.
5, proving installation according to claim 1, wherein, said output unit comprises: be used to show respectively the force value that obtains from said pressure sensor and displacement pickup and the read out instrument of shift value, and the output data storing apparatus that is used to store said force value and shift value.
6, a kind of air bag system test method, this method is used a kind of proving installation, and this device comprises: one has input media, storing apparatus and one and is used to handle the digital collision alarm generating means of impact pulse data with the data signal processor that produces a digital collision alarm; One is used to produce the impact controller of control wave with said digital collision alarm generating means bonded assembly; One with said impact controller bonded assembly and have a DC machine and basis from the surge generator of the vibrative vibrator of said control wave of said impact controller; The acceleration pick-up bearing set of the transfer of vibration that is used to support an acceleration pick-up and will produces from said surge generator to the said acceleration pick-up; With said acceleration pick-up and an ECU bonded assembly connecting device that constitutes said tested air bag system; One within it portion be provided with a high pressure vessel that is used to install the support of a gas generator forming said tested air bag system and an airbag module; A pressure sensor that when said airbag module is unfolded, is used to detect said airbag module pressure; A displacement pickup that when said airbag module is unfolded, is used to detect the displacement of said airbag module; And connecting said pressure sensor and displacement pickup to export the measured force value and the output unit of shift value, said test method comprises the steps:
The said impact pulse data that reception is obtained by an actual vehicle crash tests and with this result storage in said storing apparatus;
In said digital signal processor, said impact pulse data handing is become to be suitable for the signal of said impact controller;
In said impact controller, produce one and impact control wave according to signal from said digital signal processor;
In said surge generator, produce a shock pulse according to said impact control wave;
Said shock pulse is offered the said acceleration pick-up of said air bag system, and determine whether to launch airbag according to signal from said acceleration pick-up;
When determining not launch airbag, return said reception and store the step of said impact pulse data;
When determining to launch airbag, launch said airbag by producing an energizing signal that launches airbag;
When said airbag launches, detect the pressure and the displacement of said airbag by said pressure sensor and displacement pickup; With
Force value that output is measured in said detection airbag pressure and displacement step and shift value are to said output unit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR24444/94 | 1994-09-28 | ||
| KR1019940024444A KR100194360B1 (en) | 1994-09-28 | 1994-09-28 | Testing apparatus of air bag and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1123748A true CN1123748A (en) | 1996-06-05 |
Family
ID=19393684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95118623A Pending CN1123748A (en) | 1994-09-28 | 1995-09-28 | Airbag testing apparatus and a method therefor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH08178794A (en) |
| KR (1) | KR100194360B1 (en) |
| CN (1) | CN1123748A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393288A (en) * | 2011-11-16 | 2012-03-28 | 哈尔滨工业大学 | Spatial inflatable structure ground expansion performance test system |
| CN102419242A (en) * | 2010-09-28 | 2012-04-18 | 现代自动车株式会社 | Apparatus and method for testing vehicle airbag control unit |
| CN102954892A (en) * | 2011-08-30 | 2013-03-06 | 上海通用汽车有限公司 | System and method for verifying simulated analysis result of safety airbag explosion (CAE) |
| CN105556274A (en) * | 2013-08-12 | 2016-05-04 | 罗森伯格高频技术有限及两合公司 | Measuring apparatus with remote control |
| CN108181039A (en) * | 2017-12-29 | 2018-06-19 | 泉州市大西洋电力科技有限公司 | Hydrostatic sensor |
Families Citing this family (5)
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|---|---|---|---|---|
| KR100435599B1 (en) * | 2002-05-16 | 2004-06-09 | 기아자동차주식회사 | Method for improving air bag firing test |
| KR101397720B1 (en) * | 2013-02-22 | 2014-05-26 | 교통안전공단 | Vehicle crash simulation test method |
| CN110346106B (en) * | 2019-08-16 | 2024-04-05 | 平原滤清器有限公司 | Vacuum pulse test device and test method for testing gearbox filter |
| KR102369340B1 (en) * | 2020-06-02 | 2022-03-03 | 현대자동차주식회사 | Apparatus and method for inpecting vehicle seat airbag |
| CN112268711B (en) * | 2020-10-29 | 2023-02-24 | 上汽大众汽车有限公司 | Pressure release test device of automobile door panel mounting cover |
-
1994
- 1994-09-28 KR KR1019940024444A patent/KR100194360B1/en not_active IP Right Cessation
-
1995
- 1995-09-28 CN CN95118623A patent/CN1123748A/en active Pending
- 1995-09-28 JP JP7251371A patent/JPH08178794A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419242A (en) * | 2010-09-28 | 2012-04-18 | 现代自动车株式会社 | Apparatus and method for testing vehicle airbag control unit |
| CN102419242B (en) * | 2010-09-28 | 2016-02-10 | 现代自动车株式会社 | For the apparatus and method of testing vehicle air bag control unit |
| CN102954892A (en) * | 2011-08-30 | 2013-03-06 | 上海通用汽车有限公司 | System and method for verifying simulated analysis result of safety airbag explosion (CAE) |
| CN102954892B (en) * | 2011-08-30 | 2015-06-17 | 上海通用汽车有限公司 | System and method for verifying simulated analysis result of safety airbag explosion (CAE) |
| CN102393288A (en) * | 2011-11-16 | 2012-03-28 | 哈尔滨工业大学 | Spatial inflatable structure ground expansion performance test system |
| CN102393288B (en) * | 2011-11-16 | 2013-04-10 | 哈尔滨工业大学 | Spatial inflatable structure ground expansion performance test system |
| CN105556274A (en) * | 2013-08-12 | 2016-05-04 | 罗森伯格高频技术有限及两合公司 | Measuring apparatus with remote control |
| US10302538B2 (en) | 2013-08-12 | 2019-05-28 | Rosenberger Hochfrequenztechnik Gmbh & Co. Kg | Measuring apparatus with remote control |
| CN108181039A (en) * | 2017-12-29 | 2018-06-19 | 泉州市大西洋电力科技有限公司 | Hydrostatic sensor |
| CN108181039B (en) * | 2017-12-29 | 2020-02-07 | 泉州市大西洋电力科技有限公司 | Hydraulic sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR960011401A (en) | 1996-04-20 |
| KR100194360B1 (en) | 1999-06-15 |
| JPH08178794A (en) | 1996-07-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |