CN102490674A - Passenger car rollover active and passive comprehensive safety protection device based on gas injection and method - Google Patents
Passenger car rollover active and passive comprehensive safety protection device based on gas injection and method Download PDFInfo
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- CN102490674A CN102490674A CN2011104207676A CN201110420767A CN102490674A CN 102490674 A CN102490674 A CN 102490674A CN 2011104207676 A CN2011104207676 A CN 2011104207676A CN 201110420767 A CN201110420767 A CN 201110420767A CN 102490674 A CN102490674 A CN 102490674A
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Abstract
A passenger car rollover active and passive comprehensive safety protection device based on gas injection relates to the technical field of safety of passenger cars and comprises an obliquity sensor (13), an analog-digital converter (14), an electronic control unit (15) and one or a plurality of gas injection assemblies (2). The passenger car rollover active and passive comprehensive safety protection device is characterized in that the gas injection assemblies (2) are uniformly distributed on a top cover (1) of a passenger car, each injection assembly (2) consists of a plurality of primary gas generators (4) and secondary gas generators (5), the primary gas generators (4) and the secondary gas generators (5) of each gas injection assembly include a left primary gas generator, a left secondary gas generator, a right primary gas generator and a right secondary gas generator, nozzles of the gas generators respectively face the outside of the passenger car, the inclination sensor (13) is disposed nearby the gravity center of the integral passenger car and transmits acquired signals to the electronic control unit (15) via the analog-digital converter (14), and output signals of the electronic control unit (15) are electrically connected with an ignition devise (12) of each gas generator of the same level on the same side via a relay (16). The passenger car rollover active and passive comprehensive safety control protection device adopts the structure and a control method, and is simple and feasible.
Description
Technical field
The present invention relates to the bus safety technical field.Particularly relate to a kind of passenger vehicle that both can initiatively prevent and turn on one's side, simultaneously again can be when rollover be inevitable, the passenger vehicle rollover safety method of collision energy when reducing the passenger vehicle rollover.
Background technology
Automobile is described as the machine that has changed the world; Along with Chinese society and expanding economy, automobile pollution increases year by year, when the production of giving people, life bring great convenience; Thing followed energy scarcity, environmental pollution, congestion in road also highlight thereupon day by day.For addressing the above problem, increase highway mileage, improve road network density, greatly develop the common recognition that public transport has become various circles of society.By the end of the end of the year 2010, the highway in China total kilometrage has surpassed 4,000,000 kilometers, express highway total kilometrage and has reached about 7,400 ten thousand of 7.4 ten thousand kilometers, automobile pollution.Under this overall situation, highway passenger transportation is with its convenient, flexible, quick, economic characteristics, and the principal mode of short-distance passenger transportation still is not the unique mode of passenger transportations in a lot of areas yet, has brought into play more and more important effect gradually at field of traffic.The highway passenger vehicle speed of a motor vehicle is fast, center of gravity is high, the service time is long, passenger's density is big, so the bus safety problem has also received the attention of height.In the various accident forms of passenger vehicle, the rollover accident is the most serious a kind of, and in a single day the rollover accident takes place passenger vehicle, the serious consequence that very easily causes the dead crowd of crowd to hinder.So the rollover safety is an important indicator of estimating bus safety property, along with the legislative control on safety of countries in the world in recent years is perfect gradually, how to improve the safety of passenger vehicle, the especially safety of turning on one's side, become one of topic of paying close attention to most in the industry.
At present, improving the measure of passenger vehicle rollover safety, mainly is the wall thickness through the structure and material that changes body framwork, makes body framwork actv. plastic deformation take place when collision, absorb abundant collision energy, and guarantees occupant's living space.But, being subject to the requirement of function, the structure of body framwork often is difficult to carry out bigger change, and body side wall and upper frame space be limited, also be difficult to arrange the actv. buffering energy-absorbing structure.So in most of the cases, the designer can only be through the sectional dimension of increase column rod member and the mode of wall thickness, the rollover safety that improves passenger vehicle.Use more heavy in section and thicker steel pipe,, certainly will cause enlarging markedly of carriage tare weight, both be unfavorable for the dynamic property and the fuel economy of passenger vehicle, also be unfavorable for reducing production costs though can reach the purpose of improving the rollover safety.No matter be to change the structure of body framwork or the wall thickness of material, all belong to the passive protection measure, the distortion of body structure when promptly merely reduction accident takes place, avoid invading occupant space, but can not prevent or the generation of prevention accident.
Summary of the invention
In order to solve contradiction between passenger vehicle rollover safety and the light-weight design, and to prevent and prevent the generation of passenger vehicle rollover accident to a certain extent on one's own initiative; The invention provides a kind of fender guard; This fender guard is main passive integrated protection device, both can aligning torque be provided in the starting stage of passenger vehicle rollover, and initiatively the prevention rollover takes place; Can when passenger vehicle is turned on one's side inevitably, reduce its speed that makes impact with the ground again, reduce collision energy; Thereby reduce the vehicle body framework construction performance demands, under the prerequisite that does not significantly improve cost, improve the rollover safety of passenger vehicle.
In conjunction with accompanying drawing, explain as follows:
A kind of main passive comprehensive safety fender guard of passenger vehicle rollover that sprays based on gas comprises obliquity sensor 13, analog-digital conversion 14, electronic control unit 15 and gas jet assembly 2; Described gas jet assembly 2 is one or more groups; Be distributed on the bus roof outer 1; Every group of jet assembly 2 comprises several one-level gas generators 4 and secondary gas producer 5; Be respectively left side one-level gas generator, left side secondary gas producer, right side one-level gas generator, right side secondary gas producer, and nozzle points to the passenger vehicle outside respectively, obliquity sensor 13 is arranged near the car load center of gravity; And the signal of gathering reached electronic control unit 15 through analog-digital conversion 14, the output signal of electronic control unit 15 is electrically connected through the ignition device 12 of relay 16 with each gas generator of homonymy peer.
One-level gas generator 4 is spaced with secondary gas producer 5, and the gas generator at the same level of both sides is oppositely arranged, and is fixed on the base plate 3 that is welded in top cover 1 pipe fitting top with bolted mode.
Described each gas generator by shell 7, nozzle 8, seal 9, starting mix 10, gas generating agent 11 and ignition device 12 form.
One protective cover 6 is set on the jet assembly 2 of described each group.
Described electronic control unit 15 also is electrically connected with hard closing switch 17, wire fuse 18 respectively.
A kind of main passive comprehensive safety guard method of passenger vehicle rollover of spraying based on gas; Adopt following control method; Control unit 15 is constantly gathered car body obliqueness value and the direction of tilt that obliquity sensor 13 records, and when car body obliqueness surpasses preset critical angle D1, triggers the one-level gas generator 4 of the side of possibly turning on one's side and continues to gather car body obliqueness information according to direction of tilt; If car body obliqueness has been got back to below the setting value, expression initiatively prevention is effective; If it is invalid initiatively to prevent, car body obliqueness continues to increase, and when the inclination angle surpasses preset threshold values angle D2, triggers the secondary gas producer 5 of rollover collision side.
The invention has the beneficial effects as follows:
Can end inclination in the starting stage of rollover and proceed, the generation of prevention rollover accident; When the rollover accident is inevitable, the collision energy in the time of can also effectively reducing the passenger vehicle rollover, the occupant safety property when improving rollover; Reduced vehicle body framework construction collision energy-absorbing performance demands, for realizing that further light-weight design provides condition; Structure and control method are simple, realize with low cost.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Installation site scheme drawing when Fig. 1,2 is two groups for the gas jet assembly on bus roof outer;
Scheme drawing when Fig. 3 works for the gas jet assembly;
Fig. 4 is the layout scheme drawing of gas generator in the gas jet assembly;
Fig. 5 is the section drawing of gas jet assembly on passenger vehicle Y-Z plane;
Fig. 6 is the installation and the structural representation of gas generator;
Fig. 7 is the electronic control system schematic diagram.
Wherein: 1, bus roof outer; 2, gas jet assembly; 3, base plate; 4, one-level gas generator; 5, secondary gas producer; 6, protective cover; 7, shell; 8, nozzle; 9, seal; 10, starting mix; 11, gas generating agent; 12, ignition device; 13, obliquity sensor; 14, analog-digital conversion; 15, electronic control unit; 16, relay; 17, hard closing switch; 18, wire fuse
In conjunction with accompanying drawing, the present invention is described further:
On bus roof outer 1, one or more groups gas jet assembly 2 is installed.The gas jet assembly comprises base plate 3, one-level gas generator 4, secondary gas producer 5 and protective cover 6.Base plate 3 is welded on the top of top cover 1 pipe fitting; One-level gas generator 4 and secondary gas producer 5 centralized arrangement and all are fixed on the base plate 3 with bolted mode in gas jet assembly 2; Single gas generator, by shell 7, nozzle 8, seal 9, starting mix 10, gas generating agent 11 and ignition device 12 form its spout directed outside; Protective cover 6 is covered on all gas producer.Be provided with electronic control unit 15 in the car, its incoming signal is the car body inclination angle, is gathered by the obliquity sensor of installing in the car 13; Output signal has four the tunnel, controls the ignition device of left and right sides gas generators respectively through relay 16; In addition, also be provided with hard closing switch 17 and wire fuse 18.
In the bus driving process, obliquity sensor 13 with the form of voltage signal, is imported electronic control unit 15 with the inclination direction and the angle of car body after analog-digital conversion 14.When the car body side tilt angle surpasses preset critical angle D1, when being about to rollover takes place; Electronic control unit 15 is connected the current return of ignition device 12 in the inclination one side one-level gas generator 4 through relay 16; At first light starting mix 10, starting mix 10 burnings make gas generating agent 11 discharge a large amount of gases.Seal 9 before these gas breakdown nozzles, quicken through nozzle 8, to car outside, spray fast, the short time has produced the counter-force in the opposite direction with rollover, provides and ajust moment, suppresses also to end proceeding of rollover, realizes the active safety safeguard function of turning on one's side.If one-level gas generator 4 fails to ajust vehicle body; The car body side tilt angle will continue to increase; Electronic control unit continues this angle is monitored, and when side tilt angle reaches the threshold values angle D2 that presets, starts the current return of ignition devices 12 in the side secondary gas producer 5 that is about to bump; It is similar with the process and the one-level gas generator 4 of aerogenesis to ignite; But because medicament proportioning and jet size, secondary gas producer 5 needs during this period of time to produce a metastable counter-force to the direction sustained firing a period of time of toppling, until the body side wall kiss the earth; Its direction is in the opposite direction with rollover, reduces vehicle body and ground-surface relative velocity, reduces collision energy, improves the passive satety when turning on one's side with this.
The quantity of firsts and seconds gas generator, explosive load, proportioning, trigger angle threshold value and whether the third stage is set or more multilevel spray, the mode that needs to adopt theoretical analysis to combine with test according to concrete vehicle and ejector characteristics is definite.Poisonous and harmful element is less in the gas that the gas generating agent of selecting for use should be guaranteed to be discharged, and the low unlikely fire that causes of temperature, guarantee safely,
The 12 meters highway passenger vehicles bigger with car body are example, maximum total mass by rules and regulations less than 18 tons, about 1.5 meters of height of center of mass, bottom-to-top-height usually more than 3.5 meters.When surpassing the critical angle 5 degree left and right sides, its capsizing moment is about 28000Nm.And the arm of force of countermoment can reach more than 3.7 meters; As long as there is the deboost of a 10500N that vehicle body is just returned in theory; If start one group of thrust at this moment is 15000N, 0.2 second one-level gas generator of in-service time; Just can at an easy rate vehicle body be pushed back in the critical angle, realize that active prevents the target of turning on one's side.
According to finite element analysis, a about 12 meters highway passenger vehicle is turned on one's side, and its collision energy is about 170000J, and the roof height is about 3 meters.According to the ECE-R66 statutory standard; To bumping about 3.6 meters of dress eductor attachment point stroke, if adopt one group of gas injection apparatus that thrust is 15000N, can produce maximum negative work in theory is 54000J from critical spot; It is about 30% that collision energy is reduced, and effect is remarkable.
Claims (6)
1. the main passive comprehensive safety fender guard of passenger vehicle rollover that sprays based on gas comprises obliquity sensor (13), analog-digital conversion (14), electronic control unit (15) and gas jet assembly (2); It is characterized in that: described gas jet assembly (2) is distributed on the bus roof outer (1); Comprise several one-level gas generators (4) and secondary gas producer (5); Be respectively left side one-level gas generator, left side secondary gas producer, right side one-level gas generator, right side secondary gas producer; And nozzle points to the passenger vehicle outside respectively; Obliquity sensor (13) is arranged near the car load center of gravity; And the signal of gathering reached electronic control unit (15) through analog-digital conversion (14), the output signal of electronic control unit (15) is electrically connected through the ignition device (12) of relay (16) with each gas generator of homonymy peer.
2. a kind of main passive comprehensive safety fender guard of passenger vehicle rollover that sprays based on gas according to claim 1; It is characterized in that: described gas jet assembly (2) is one or more groups; One-level gas generator (4) and secondary gas producer (5) are spaced; The gas generator at the same level of both sides is oppositely arranged, and is fixed on the base plate (3) that is welded in top cover (1) pipe fitting top with bolted mode.
3. a kind of main passive comprehensive safety fender guard of passenger vehicle rollover that sprays based on gas according to claim 1 and 2 is characterized in that: described each gas generator by shell (7), nozzle (8), seal (9), starting mix (10), gas generating agent (11) and ignition device (12) and form.
4. a kind of main passive comprehensive safety fender guard of passenger vehicle rollover that sprays based on gas according to claim 3 is characterized in that: on the jet assembly (2) of described each group, a protective cover (6) is set.
5. a kind of main passive comprehensive safety fender guard of passenger vehicle rollover that sprays based on gas according to claim 1, it is characterized in that: described electronic control unit (15) also is electrically connected with hard closing switch (17), wire fuse (18) respectively.
6. a kind of main passive comprehensive safety guard method of passenger vehicle rollover of spraying according to claim 1 based on gas; It is characterized in that: said device adopts following control method; Control unit (15) is constantly gathered car body obliqueness value and the direction of tilt that obliquity sensor (13) records; When car body obliqueness surpasses preset critical angle D1; Trigger the one-level gas generator (4) of the side of possibly turning on one's side and continue collection car body obliqueness information according to direction of tilt,, represent that initiatively prevention effectively if car body obliqueness has been got back to below the setting value; If it is invalid initiatively to prevent, car body obliqueness continues to increase, and when the inclination angle surpasses preset threshold values angle D2, triggers the secondary gas producer (5) of rollover collision side.
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| CN2011104207676A CN102490674A (en) | 2011-12-15 | 2011-12-15 | Passenger car rollover active and passive comprehensive safety protection device based on gas injection and method |
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| CN2011104207676A CN102490674A (en) | 2011-12-15 | 2011-12-15 | Passenger car rollover active and passive comprehensive safety protection device based on gas injection and method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103332157A (en) * | 2013-07-10 | 2013-10-02 | 厦门金龙联合汽车工业有限公司 | Passenger car rollover buffer and passenger car anti-rollover system |
| CN105083192A (en) * | 2015-08-27 | 2015-11-25 | 樊英俊 | Fire alarm danger signal warning indicator for vehicle |
| CN105109444A (en) * | 2015-08-27 | 2015-12-02 | 范丽萍 | Fuel atomization flow calculating and correcting device |
| CN105216728A (en) * | 2015-08-27 | 2016-01-06 | 范丽萍 | Electromagnetic valve size opening control system |
| CN105593110A (en) * | 2013-06-28 | 2016-05-18 | 罗伯特·博世有限公司 | Method for the transverse dynamic stabilisation of a single-track motor vehicle |
| CN105818771A (en) * | 2016-04-19 | 2016-08-03 | 谢奇 | Vehicle attitude control method and system based on thrust devices |
| CN106004762A (en) * | 2016-05-31 | 2016-10-12 | 无锡昊瑜节能环保设备有限公司 | Infrared induction-based control method for rollover prevention system of automobile |
| CN106585547A (en) * | 2016-12-20 | 2017-04-26 | 南京航空航天大学 | Jet-propelled rollover prevention device and control method for emergent working condition |
| CN108549230A (en) * | 2018-04-27 | 2018-09-18 | 李德祥 | A kind of vehicle control system based on improvement probabilistic neural network algorithm |
| CN109515368A (en) * | 2018-10-29 | 2019-03-26 | 淮阴工学院 | A kind of tank truck side overturning crash cushioning device and its control method |
| CN111439231A (en) * | 2020-03-23 | 2020-07-24 | 淮阴工学院 | Miniature recoil type direction correcting device for vehicle |
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| CN105593110B (en) * | 2013-06-28 | 2018-05-22 | 罗伯特·博世有限公司 | For the method for horizontal dynamic stability single track motor vehicle |
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| CN105083192A (en) * | 2015-08-27 | 2015-11-25 | 樊英俊 | Fire alarm danger signal warning indicator for vehicle |
| CN105109444A (en) * | 2015-08-27 | 2015-12-02 | 范丽萍 | Fuel atomization flow calculating and correcting device |
| CN105216728A (en) * | 2015-08-27 | 2016-01-06 | 范丽萍 | Electromagnetic valve size opening control system |
| CN105818771A (en) * | 2016-04-19 | 2016-08-03 | 谢奇 | Vehicle attitude control method and system based on thrust devices |
| CN106004762A (en) * | 2016-05-31 | 2016-10-12 | 无锡昊瑜节能环保设备有限公司 | Infrared induction-based control method for rollover prevention system of automobile |
| CN106585547A (en) * | 2016-12-20 | 2017-04-26 | 南京航空航天大学 | Jet-propelled rollover prevention device and control method for emergent working condition |
| CN106585547B (en) * | 2016-12-20 | 2019-01-11 | 南京航空航天大学 | The jet-propelled Anti-side-turning device of emergency work condition explosion and control method |
| CN108549230A (en) * | 2018-04-27 | 2018-09-18 | 李德祥 | A kind of vehicle control system based on improvement probabilistic neural network algorithm |
| CN109515368A (en) * | 2018-10-29 | 2019-03-26 | 淮阴工学院 | A kind of tank truck side overturning crash cushioning device and its control method |
| CN109515368B (en) * | 2018-10-29 | 2021-06-01 | 淮阴工学院 | Side-turning buffering device of tank truck and control method thereof |
| CN111439231A (en) * | 2020-03-23 | 2020-07-24 | 淮阴工学院 | Miniature recoil type direction correcting device for vehicle |
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Application publication date: 20120613 |