CN104527562B - A kind of vehicle restraint systems design and develop method - Google Patents
A kind of vehicle restraint systems design and develop method Download PDFInfo
- Publication number
- CN104527562B CN104527562B CN201410795379.XA CN201410795379A CN104527562B CN 104527562 B CN104527562 B CN 104527562B CN 201410795379 A CN201410795379 A CN 201410795379A CN 104527562 B CN104527562 B CN 104527562B
- Authority
- CN
- China
- Prior art keywords
- air bag
- vehicle
- optimal
- distance
- maximum
- 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.)
- Active
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/15—Vehicle, aircraft or watercraft design
Abstract
A kind of vehicle restraint systems design and develop method, and it comprises the following steps：The maximum of constrained system is measured in the car body model that need to design and develop vehicle and lays distance；According to the maximum optimal leading laid distance and calculate occupant's head in constrained system of the constrained system, so as to obtain the optimal X of front part of vehicle air bag to thickness；Suitable air bag and gas generator are selected to thickness according to the optimal X of the front part of vehicle air bag；Analyzed by test of many times, adjust the time of ignition of air bag and the performance parameter of safety belt so that at the time of air bag is fully deployed, crash test dummy head just contacts with air bag.This method, which can reach, reduces test number (TN), the construction cycle of shortening vehicle restraint systems, reduction development cost, the purpose for ensureing development effectiveness.
Description
Technical field
The present invention relates to technical field of vehicle safety, more particularly to a kind of vehicle restraint systems design and develop method.
Background technology
One of important system of occupant safety is protected when vehicle restraint systems are collisions, how to make vehicle restraint systems
Preferably occupant safety is protected to need a complete Development System.In vehicle restraint systems, multiply when being contacted with air bag
Member the leading on head, the X of front part of vehicle air bag to thickness (ultimate range that i.e. air bag expands to occupant direction),
Time of ignition, the time of ignition (at the time of i.e. safety belt starts to tighten up) of safety belt and the pretension of safety belt of air bag
The many factors such as limiter characteristic can all impact to the performance of vehicle restraint systems.
At present, during the designing and developing of vehicle restraint systems, each main engine plants and Chevron Research Company (CRC) are without architecture
Developing thought and strategy, but use attempt means, be constantly changing the leading of occupant's head when being contacted with air bag,
Pretensions of the X of front part of vehicle air bag to thickness, the time of ignition of air bag, the time of ignition of safety belt and safety belt
The performance parameter of limiter characteristic etc., untill dummy's score disclosure satisfy that performance requirement.However, due in vehicle restraint systems
Existing variable has a lot, not only resulted in by way of the means of trial constantly adjust multiple variables test number (TN) it is excessive,
The problem of experimental period is long, can also significantly increase development cost because test number (TN) is more, and it is also possible to because
It is incorrect and be unable to reach development goal to adjust not in place or adjustment mode.
The content of the invention
Based on this, the invention provides a kind of method of designing and developing of vehicle restraint systems, this method can shorten exploitation
In the cycle, reduce development cost, ensure development effectiveness.
Vehicle restraint systems provided by the invention design and develop method, comprise the following steps, and need to design and develop vehicle
Car body model in measure the maximum of constrained system and lay distance；Calculated about according to the maximum distance of laying of the constrained system
The optimal leading of occupant's head and the optimal X of front part of vehicle air bag are to thickness in beam system；The occupant's head is most
Good leading is equal to the maximum optimal leading percentage laid distance and be multiplied by occupant's head of the constrained system, the occupant
The optimal leading percentage on head is 20% to 25%, is selected according to the optimal X of the front part of vehicle air bag to thickness
Suitable air bag and gas generator；Analyzed by test of many times, adjust the time of ignition and safety belt of air bag
Performance parameter so that at the time of air bag is fully deployed, crash test dummy head just contacts with air bag.
According to one embodiment of present invention, the maximum distance of laying of the constrained system includes operating seat constraint system
The maximum of system lays distance and the maximum laying distance of copilot's seat restraint systems, the operating seat constrained system
Maximum is laid apart from the normal position of occupant's head when being vehicle traveling in the car body model to the distance of steering wheel hub, institute
The maximum distance of laying for stating copilot's seat restraint systems is the normal of occupant's head when vehicle travels in the car body model
Distance of the position to instrument board.
According to one embodiment of present invention, the optimal X of the front part of vehicle air bag is equal to constrained system to thickness
The maximum optimal leading laid distance and subtract occupant's head.
According to one embodiment of present invention, the performance parameter of the safety belt includes the time of ignition of safety belt, safety
The pretension and limiter characteristic of band.
According to one embodiment of present invention, the optimal X according to the front part of vehicle air bag obtains to thickness
The step of suitable air bag and gas generator, includes：According to the optimal X of the front part of vehicle air bag drawn to thickness
Degree selects its X from existing air bag and is equal to the optimal X of the front part of vehicle air bag to the product of thickness to thickness
And the physical dimension by selected air bag, select suitable gas generator.
In summary, method provided by the invention first determines the reach of occupant's head in vehicle restraint systems from space angle
The X of amount and front part of vehicle air bag is to the equidistant parameter of thickness, then by constantly debugging other ginsengs of vehicle restraint systems
Number, makes constrained system meet temporal requirement, and then complete design is developed.This method, which can reach, reduces test number (TN), contracting
The construction cycle of short vehicle restraint systems, the purpose for reducing development cost, ensureing development effectiveness.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow above and other objects of the present invention, feature and advantage can
Become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Brief description of the drawings
Fig. 1 is the schematic flow sheet for designing and developing method of vehicle restraint systems provided by the invention.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, it is as follows to the detailed description of the invention.
Method is designed and developed the invention provides a kind of vehicle restraint systems, this, which designs and develops method, effectively to contract
The construction cycle of short vehicle restraint systems, reduce development cost, ensure development effectiveness.
Referring to Fig. 1, this method comprises the following steps：First, as shown in step 101, according to vehicle need to be designed and developed
Car body model, directly measure the maximum of constrained system and lay distance.Specifically, the maximum distance of laying of constrained system includes driving
The maximum laying distance and the maximum of copilot's seat restraint systems of member's seat restraint systems lay distance.Operating seat is about
Beam system it is maximum lay normal position that distance is occupant's head when vehicle travels in car body model to steering wheel hub away from
From.The maximum of copilot's seat restraint systems lays the normal position that distance is occupant's head when vehicle travels in car body model
To the distance of instrument board.In the present embodiment, the maximum distance of laying of constrained system mentioned below includes operating seat
The maximum of constrained system lays distance and the maximum laying distance of copilot's seat restraint systems, corresponding thereto, calculates
Data or parameter also include data corresponding with operating seat or parameter and data corresponding with copilot seat or
Parameter.
Then, as shown at step 1 02, occupant's head in constrained system is calculated according to the maximum distance of laying of constrained system
Optimal leading and front part of vehicle air bag optimal X to thickness (X when i.e. front part of vehicle air bag is fully deployed to
Thickness).Specifically, the optimal leading of occupant's head is multiplied by the optimal of occupant's head equal to the maximum distance of laying of constrained system
Leading percentage, that is, the optimal leading for being multiplied by occupant's head account for the maximum percentage for laying distance of constrained system.At this
In embodiment, the optimal leading percentage of occupant's head be by more preferable vehicles of money passenger protecting performance occupant's head most
The maximum ratio for laying distance of good leading and constrained system is worth to, and its number range is 20% to 25%, it is preferable that occupant
The optimal leading percentage on head is 25%.The optimal X of front part of vehicle air bag is equal to the maximum of constrained system to thickness
Lay the optimal leading that distance subtracts occupant's head.
Then, as shown in step 103, according to the optimal X of the front part of vehicle air bag drawn to thickness.From existing
Its X is selected in air bag and is equal to the optimal X of front part of vehicle air bag to the product of thickness to thickness, and according to this substitute
The physical dimension of capsule selects suitable gas generator.
Then, as indicated at block 104, according to the optimal leading of the occupant's head obtained in step 102 and 103, vehicle
The optimal X of front airbag passes through test of many times point to the parameter of thickness, the physical dimension of air bag and gas generator
Analysis, such as simulation analysis, the time of ignition of air bag and the performance parameter of safety belt are constantly adjusted, so that complete in air bag
At the time of full expansion, crash test dummy head just contacts with air bag.Specifically, different auto models causes
The difference of car body collision waveform, therefore in simulation analysis, the speed of advancement of collision rift dummy also differs, along with different cars
The various performance parameters of middle safety belt also differ, therefore the velocity variations when dummy in the presence of safety belt moves forward
Differ, this resulted in manikin head from vehicle travel when normal position (initial position) move to and contacted with air bag
The time used also differs when (final position).Therefore need constantly to debug the time of ignition and safety belt of air bag
Various performance parameters so that at the time of air bag is fully deployed, crash test dummy's head just connects with air bag
Touch.In the present embodiment, it is special to include the time of ignition of safety belt, the pretension of safety belt and limiter for the various performance parameters of safety belt
The parameters such as property.By constantly debugging, when the various performance parameters at air bag igniting moment and safety belt meet above-mentioned condition
When, the injury that dummy is subject to can be made to be reduced to minimum, meet the score requirement of dummy.That is the target of complete design exploitation.
In the present invention, first from the maximum laying distance for spatially drawing constrained system, manikin head when defining collision
Leading and front part of vehicle air bag optimal X to thickness, the physical dimension and gas hair of air bag is then determined
The parameters of raw device.Then from the angle of time, by the point for constantly debugging the time of ignition of air bag, safety belt
The pretension of fiery moment and safety belt and limiter characteristic so that at the time of air bag is fully deployed, crash test dummy's head
Just contacted with air bag, so that it is determined that the parameters of vehicle restraint systems.Such a development approach is because limited
The space length of vehicle restraint systems, it is only necessary to pass through the experiment of less time on the premise of space length determines, you can obtain
Optimal air bag igniting moment and the various performance parameters of safety belt.Therefore with the prior art needed to reach exploitation purpose
The method repeatedly to continuously attempt to is compared, it is possible to reduce slide unit test and impact test number, development experiments expense also have compared with
Big reduction.Meanwhile because its reduce in test it needs to be determined that variable, optimization is motivated, therefore being capable of guarantee property
The effect that can be developed.
In summary, method provided by the invention first determines the reach of occupant's head in vehicle restraint systems from space angle
The X of amount and front part of vehicle air bag is to the equidistant parameter of thickness, then by constantly debugging other ginsengs of vehicle restraint systems
Number, makes constrained system meet temporal requirement, and then complete design is developed.This method, which can reach, reduces test number (TN), contracting
The construction cycle of short vehicle restraint systems, the purpose for reducing development cost, ensureing development effectiveness.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
For the equivalent embodiment of equivalent variations, as long as being the technical spirit pair according to the present invention without departing from technical solution of the present invention content
Any simple modification, equivalent change and modification that above example is made, in the range of still falling within technical solution of the present invention.
Claims (5)
1. a kind of vehicle restraint systems design and develop method, it is characterised in that：It comprises the following steps：
The maximum of constrained system is measured in the car body model that need to design and develop vehicle and lays distance；
According to the maximum optimal leading laid distance and calculate occupant's head in constrained system of the constrained system, so as to obtain
To the optimal X of front part of vehicle air bag to thickness；
The maximum distance of laying that the optimal leading of the occupant's head is equal to the constrained system is multiplied by the optimal of occupant's head
Leading percentage, the optimal leading percentage of the occupant's head is 20% to 25%,
Suitable air bag and gas generator are selected to thickness according to the optimal X of the front part of vehicle air bag；
Analyzed by test of many times, adjust the time of ignition of air bag and the performance parameter of safety belt so that in air bag
At the time of being fully deployed, crash test dummy head just contacts with air bag.
2. vehicle restraint systems according to claim 1 design and develop method, it is characterised in that：The constrained system
Maximum lays maximum of the distance including operating seat constrained system and lays distance and the maximum of copilot's seat restraint systems
Distance is laid, the maximum distance of laying of the operating seat constrained system is occupant's head when vehicle travels in the car body model
To the distance of steering wheel hub, the maximum distance of laying of copilot's seat restraint systems is the car for the normal position in portion
Distance of the normal position of occupant's head to instrument board when vehicle travels in body Model.
3. vehicle restraint systems according to claim 1 design and develop method, it is characterised in that：The front part of vehicle peace
The optimal X of full air bag is equal to the maximum optimal leading laid distance and subtract occupant's head of constrained system to thickness.
4. vehicle restraint systems according to claim 1 design and develop method, it is characterised in that：The property of the safety belt
Energy parameter includes time of ignition, the pretension and limiter characteristic of safety belt of safety belt.
5. vehicle restraint systems according to claim 1 design and develop method, it is characterised in that：It is described according to the car
The step of optimal X of front airbag obtains suitable air bag and gas generator to thickness includes：
Its X is selected according to the optimal X of the front part of vehicle air bag from existing air bag to thickness to thickness to be equal to
Products of the optimal X of the front part of vehicle air bag to thickness；And
By the physical dimension of selected air bag, suitable gas generator is selected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795379.XA CN104527562B (en) | 2014-12-19 | 2014-12-19 | A kind of vehicle restraint systems design and develop method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410795379.XA CN104527562B (en) | 2014-12-19 | 2014-12-19 | A kind of vehicle restraint systems design and develop method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104527562A CN104527562A (en) | 2015-04-22 |
| CN104527562B true CN104527562B (en) | 2018-01-19 |
Family
ID=52843278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410795379.XA Active CN104527562B (en) | 2014-12-19 | 2014-12-19 | A kind of vehicle restraint systems design and develop method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104527562B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105574277A (en) * | 2015-12-23 | 2016-05-11 | 大陆泰密克汽车系统（上海）有限公司 | Safety line related parameter calibration method based on road vehicle function safety |
| CN108608982B (en) * | 2018-04-30 | 2020-12-18 | 苏州天浩汽车科技股份有限公司 | Vehicle safety system |
| CN109204217A (en) * | 2018-08-02 | 2019-01-15 | 延锋百利得（上海）汽车安全系统有限公司 | Obtain method, apparatus, computer equipment and the storage medium of the inflation data of safety air bag |
| CN110525280A (en) * | 2019-05-31 | 2019-12-03 | 惠州市德赛西威汽车电子股份有限公司 | Seat-regulating method and onboard system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10321506B4 (en) * | 2003-05-13 | 2006-10-05 | Siemens Ag | Method for determining the current head position of vehicle occupants |
| CN102961126B (en) * | 2012-11-16 | 2014-08-13 | 福建工程学院 | Drive early-warning method based on pulse condition diagnosis mode |
| CN103984838B (en) * | 2014-06-03 | 2016-10-05 | 安徽江淮汽车股份有限公司 | A kind of method determining side airbag shape |
-
2014
- 2014-12-19 CN CN201410795379.XA patent/CN104527562B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104527562A (en) | 2015-04-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104527562B (en) | A kind of vehicle restraint systems design and develop method | |
| Hu et al. | Toward designing pedestrian–friendly vehicles | |
| US20160052476A1 (en) | Vehicle airbag appendage | |
| CN104129354A (en) | Control method for accidental injury prevention safety air bag | |
| CN108394371A (en) | Method for reducing collsion damage | |
| Sahraei et al. | High strength steels, stiffness of vehicle front-end structure, and risk of injury to rear seat occupants | |
| Liufu et al. | Multiobjective optimization on cooperative control of autonomous emergency steering and occupant restraint system for enhancing occupant safety | |
| Joszko et al. | Biomechanical analysis of injuries of rally driver with head supporting device | |
| CN105094107B (en) | The control method of security diagnostics module during automobile rear-collision | |
| Iyota et al. | The effect of occupant protection by controlling airbag and seatbelt | |
| JP2008261991A (en) | Safety evaluation apparatus | |
| Ptak | Pedestrian safety: a new method to assess pedestrian kinematics | |
| Simms et al. | Pedestrian injury biomechanics and protection | |
| Bastien | The prediction of kinematics and injury criteria of unbelted occupants under autonomous emergency braking | |
| Eungseo et al. | The cooperative control of aeb ans passive safety systems for minimizing occupants’ injury in high velocity region | |
| Radu et al. | Study regarding the influence of airbag deployment time on the occupant injury level during a frontal vehicle collision | |
| Porkolab et al. | Effect of Non-conventional Seating Position on Driver Injuries in the Case of a Self-driving Car | |
| Woitsch et al. | Influence of pitching and yawing during frontal passenger vehicle crash tests on driver occupant's kinematics and injury | |
| CN105922962A (en) | Intelligent safety airbag | |
| Jung et al. | Precrash dipping nose (PCDN) needs pedestrian recognition | |
| Revkeldt et al. | Literature survey on in-vehicle safety devices | |
| CN105857236A (en) | Intelligent airbag capable of opening under non-explosive conditions | |
| Yang et al. | Research on the Relation between HIC (d) and Approach Angle in FMVSS 201U Headform Test | |
| Kumar et al. | Improving offset crash performance and injury mitigation via multi-body simulation and structural CAE | |
| Miller et al. | Injury optimization of the frontal crash supplemental restraint system (SRS) deployment matrix |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hu Zhengnan Inventor after: Zhang Haiyang Inventor after: Zhu He Inventor after: Zhou Dayong Inventor after: Liu Weiguo Inventor after: Wu Chengming Inventor after: Feng Qingfeng Inventor before: Zhang Haiyang Inventor before: Zhu He Inventor before: Zhou Dayong Inventor before: Liu Weiguo Inventor before: Wu Chengming Inventor before: Feng Qingfeng |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |