CN106585545A - Air bag control device for judging protecting types based on weight - Google Patents
Air bag control device for judging protecting types based on weight Download PDFInfo
- Publication number
- CN106585545A CN106585545A CN201611034597.7A CN201611034597A CN106585545A CN 106585545 A CN106585545 A CN 106585545A CN 201611034597 A CN201611034597 A CN 201611034597A CN 106585545 A CN106585545 A CN 106585545A
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- CN
- China
- Prior art keywords
- air bag
- sensor
- safety
- ecu
- module
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- 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.)
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Classifications
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01211—Expansion of air bags
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01211—Expansion of air bags
- B60R2021/01225—Expansion of air bags control of expansion volume
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01211—Expansion of air bags
- B60R2021/01231—Expansion of air bags control of expansion timing or sequence
-
- 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
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01252—Devices other than bags
- B60R2021/01265—Seat belts
- B60R2021/01272—Belt tensioners
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The invention relates to an air bag control device for judging protecting types based on weight. The air bag control device comprises an air bag electronic control unit (ECU), wherein the air bag ECU is connected with an acceleration sensor, a seat belt sensor, a seat pressure sensor, a vehicle velocity sensor, a seat belt pretensioner, a main air bag, a secondary air bag and an external power source. According to the air bag control device disclosed by the invention, passenger weight information is acquired by the seat pressure sensor, according to the acquired passenger weight information, passenger types are identified, and the information of multi-pass external sensors is combined, so that the ECU can automatically adjust parameters including the size of a deflation hole of an air bag, the initiation time of the air bag, the mass flow rate of the air bag, the length of a drawstring of the air bag and the like according to different passenger types and the information of the sensors, and in a colliding accident, different kinds of passengers can be best protected.
Description
Technical field
The present invention relates to safety airbag technique field, and in particular to judge the air bag control of protection type based on weight
Device.
Background technology
Safe automobile air bag has saved the life of countless occupants since the birth, is affixed one's name to according to calendar year 2001 audit in U.S.A.
A report of (United States GovernmentAccountability Office, US-GAO) shows, sends out in automobile
During raw front shock, front bladders are used alone can reduce the severely injured rate of occupant 14%, and while using of seat belts and safety
Air bag can reduce the severely injured rate of occupant 50%.But, because air bag is developed based on 50 percentile adult males
, optimal protected effect cannot be played to all types occupant in initiation process.
The air bag detonation when high velocity impact non-wear safety belt has injury to occupant, but if without air bag
Occupant certainly will collide with automotive trim, equally can cause serious injury.And when automobile occurs low speed or middle low speed collision, do not wear
The detonation of air bag when wearing seat belt has protective effect to occupant, air bag ratio is generally speaking used alone and does not use air bag
It is low with the severely injured rate caused by seat belt.
In the U.S., between 1990-2000 years, because the mistake detonation of air bag causes altogether 162 occupant's death, wherein wrapping
Include 38 drivers not fastened the safety belt, 6 adult occupants not fastened the safety belt, 78 children of 0～11 years old, 18 babies.
For this purpose, Federal Motor Vehicle Safety regulation (Federal Motor Vehicle Safety Standards
AndRegulations, FMVSS) newest clause regulations of FMVSS 208：When passenger type is baby and child less than 6 years old
When, the expansion of air bag need to be suppressed.Therefore, various countries expand numerous studies to smart airbag.Michael
E.Farmer et al. by occupant detection be added in the control of air bag, by occupant's feature identification be divided into passenger type identification and
Occupant position follows the trail of two classes.Jilin Province, China university conducts in-depth research to occupant's detection, establishes based on low cost CMOS
The automobile of (complementary metal oxide semiconductors (CMOS), complementary metal oxide semiconductor) video camera is taken advantage of
Member's classification vision detection system and its intelligent mode recognizer.But above-mentioned smart airbag is simply by closed safe air bag
To reduce injury of the air bag to occupant, such occupant possibly cannot avoid that secondary collision occurs with inside gadget, so as to taking advantage of
Member causes serious injury.
Traditional air bag passes through external acceleration sensor acquisition acceleration signal, then through specific algorithm meter
Calculate, reach the condition of detonation
After will firing safety air-bag.This air bag has following shortcoming：
1) None- identified passenger type, causes detonation by mistake to cause occupant's major injury；
2) seat belt situation cannot be perceived, causes occupant's heavy casualties；
3) dynamic air bag parameter cannot be adjusted, it is impossible to reach the optimum protection to all kinds of occupants.
The content of the invention
The present invention be to provide for it is a kind of recognize passenger type using passenger size, then dynamic changes rising for air bag
Quick-fried parameter, so as to reach the control system of safety air bag of the optimum protected effect to occupant.
The airbag control device that weight judges protection type, including safety airbag ECU, safety airbag ECU should be based on
Respectively with acceleration transducer, seat belt sensor, seat pressure transducer, vehicle speed sensor, safety belt pretensioner, master
Secondary air bag is connected and external power source.
Safety airbag ECU include main control chip, main control chip respectively with A/D converter, sensor acquisition module, power supply pipe
Reason module, ignition control module and the connection of air bag parameter control module；Acceleration transducer is connected with A/D converter；Pass
Sensor acquisition module is connected respectively with seat belt sensor, seat pressure transducer and vehicle speed sensor；Power management mould
Block is connected with external power source；Ignition control module is connected with safety belt pretensioner, major-minor air bag.
Ignition control module is also connected with safety warning device.
Safety airbag ECU also includes communication module, and main control chip is connected by communication module with external network.
The system gathers passenger size information using seat pressure transducer, and recognizes passenger type accordingly, and merges many
Road external sensor information, enables ECU according to different passenger types and sensor information adjust automatically air bag
The parameters such as bleeder port size, detonation moment, mass flowrate, drawstring length, so as to equal to different type occupant in collision accident
Reach best protection effect.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Specific embodiment
The specific embodiment of the present invention is described in detail below in conjunction with the accompanying drawings.
As shown in figure 1, this judges the airbag control device of protection type, including safety airbag ECU based on weight,
Safety airbag ECU respectively with acceleration transducer, seat belt sensor, seat pressure transducer, vehicle speed sensor, safety
Band preloader, major-minor air bag are connected and external power source.
Safety airbag ECU include main control chip, main control chip respectively with A/D converter, sensor acquisition module, power supply pipe
Reason module, ignition control module and the connection of air bag parameter control module；Acceleration transducer is connected with A/D converter；Pass
Sensor acquisition module is connected respectively with seat belt sensor, seat pressure transducer and vehicle speed sensor；Power management mould
Block is connected with external power source；Ignition control module is connected with safety belt pretensioner, major-minor air bag.
Ignition control module is also connected with safety warning device.
Safety airbag ECU also includes communication module, and main control chip is connected by communication module with external network.
The master chip of ECU adopts the microprocessor of 16 bit of Freescale (Freescale), the processor to be integrated with A/D and turn
Change unit, communication unit and memory element.Acceleration transducer adopts the double-axel acceleration sensor of Freescale, Ke Yitong
When detect the acceleration of X-direction and Y direction.The air bag that igniting unit employs German Infineon (Infineon) is special
With Ignition chip, it drives two functions comprising power management and igniting.
External sensor module.Including outside vehicle crash sensor, belt buckle sensor, seat pressure transducer
And vehicle speed sensor.During being collided due to vehicle, mainly by vehicle both sides longeron energy absorption, therefore outside vehicle
Portion's sensor is installed on engine support outside.
Non- wear safety belt is the main cause that air bag causes adult's injures and deaths.Belt buckle sensor uses dry spring
Pipe is perceived, when safety airbag ECU detects the non-wear safety belt of occupant, should adjust air bag external parameter or
Suppress the detonation of air bag, so as to avoid that unnecessary injury is caused to occupant.Seat pressure transducer can perceive seat
On occupant, prevent by mistake detonation from causing unnecessary economic loss.The speed of service of vehicle speed sensor detection collision vehicle in front is right
Air bag acceleration algorithm carries out auxiliary calculating.
Air bag parameter change actuator.By software emulation it is recognised that when protection is optimal, difference is taken advantage of
Air bag parameter required by member's type is not fully identical.So, by the optimized parameter required by each passenger type
In being written to air bag control unit.After occupant is taken behind seat, and vehicle is powered, seat pressure transducer real-time detection goes out
Occupant weight, and have the more specific weight values of main control chip to draw passenger type.When passenger type changes, main control chip will be taken advantage of
Member's categorical data passes to air bag control unit by communications protocol.When passenger type changes, ECU can send
Corresponding output signal control exterior operator action.Bleeder port size is carried out by using electro shape memory composite
Change, electro shape memory composite can change size by changing the voltage for being carried in its own, so as to control peace
The size of full air bag bleeder port.Mass flowrate curve is adjusted using twin-stage or multi-stage gas generators, by adjusting multi-level gas
Generator firing interval is so as to changing mass flowrate curve shape.Air bag webbing length can be rolled up by motor
Receive, ribbon end is fixed on motor, by motor webbing length is accurately furled and discharged.And safety
The air bag detonation moment can be by software delay control.
We employ 2 kinds of modes and smart airbag control system are verified：Using being manually entered the outer of simulation
Portion's signal and verified by sled test.
Mode 1 is using the external signal for being manually entered simulation.Will existing chassis crash acceleration data input to letter
In number generator, the car crass accelerating curve of simulation is then produced by signal generator.Meanwhile, set external sensor
State, smart airbag control system collection acceleration signal and sensor state, according to obtain member type,
Drive corresponding air bag parameter change actuator.
According to measurement, the system can export predetermined drive signal according to passenger type, it is possible in optimum igniting
Carve and nearby lighted a fire.Can be cost-effective during early development by the way of simplation verification.
The sled test of mode 2 is verified.The chassis car weight is 536kg, is carried out under the speed of 30km/h and 42km/h respectively
Impact test.
Result of the test shows：The intelligence control system can effectively gather acceleration signal and outer during actual collision
Portion's sensor signal, and output parameter detonates to air bag when chassis collides 26ms.
Claims (4)
1. the airbag control device of protection type is judged based on weight, it is characterised in that：Including safety airbag ECU, safety
Air bag ECU is pre- with acceleration transducer, seat belt sensor, seat pressure transducer, vehicle speed sensor, seat belt respectively
Tight device, major-minor air bag are connected and external power source.
2. system according to claim 1, it is characterised in that：Safety airbag ECU includes main control chip, main control chip difference
Connect with A/D converter, sensor acquisition module, power management module, ignition control module and air bag parameter control module
Connect；Acceleration transducer is connected with A/D converter；Sensor acquisition module respectively with seat belt sensor, seat pressure sensing
Device and vehicle speed sensor connect；Power management module is connected with external power source；Ignition control module and safety belt pretensioner,
Major-minor air bag is connected.
3. system according to claim 2, it is characterised in that：Ignition control module is also connected with safety warning device.
4. the system according to Claims 2 or 3, it is characterised in that：Safety airbag ECU also includes communication module, master control core
Piece is connected by communication module with external network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034597.7A CN106585545A (en) | 2016-11-18 | 2016-11-18 | Air bag control device for judging protecting types based on weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611034597.7A CN106585545A (en) | 2016-11-18 | 2016-11-18 | Air bag control device for judging protecting types based on weight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106585545A true CN106585545A (en) | 2017-04-26 |
Family
ID=58591700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611034597.7A Pending CN106585545A (en) | 2016-11-18 | 2016-11-18 | Air bag control device for judging protecting types based on weight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106585545A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791154A (en) * | 2017-05-04 | 2018-11-13 | 罗伯特·博世有限公司 | Airbag control module and system |
| CN109591753A (en) * | 2018-11-30 | 2019-04-09 | 硅湖职业技术学院 | Active children's safety air bag drawstring control device and its control method |
| CN110271507A (en) * | 2019-06-21 | 2019-09-24 | 北京地平线机器人技术研发有限公司 | A kind of air bag controlled method and device |
| CN110304258A (en) * | 2019-07-11 | 2019-10-08 | 苏州标图高级座椅有限公司 | A kind of aircraft safety seat |
| CN110435584A (en) * | 2019-07-19 | 2019-11-12 | 铁将军汽车电子股份有限公司 | On-vehicle safety prompt system and method |
| CN110789488A (en) * | 2019-10-09 | 2020-02-14 | 太航常青汽车安全系统（苏州）股份有限公司 | Intelligent safety airbag control system and method based on passenger sign recognition |
| CN110861604A (en) * | 2019-11-23 | 2020-03-06 | 安徽省阜阳市好希望工贸有限公司 | Child safety seat monitoring and alarming system and method |
| CN111086473A (en) * | 2018-10-24 | 2020-05-01 | 罗伯特·博世有限公司 | Method for controlling at least one occupant protection device of a vehicle in the event of a collision |
| CN114852002A (en) * | 2022-04-22 | 2022-08-05 | 岚图汽车科技有限公司 | Side impact protection method, device, system and medium |
-
2016
- 2016-11-18 CN CN201611034597.7A patent/CN106585545A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108791154A (en) * | 2017-05-04 | 2018-11-13 | 罗伯特·博世有限公司 | Airbag control module and system |
| CN111086473A (en) * | 2018-10-24 | 2020-05-01 | 罗伯特·博世有限公司 | Method for controlling at least one occupant protection device of a vehicle in the event of a collision |
| CN109591753A (en) * | 2018-11-30 | 2019-04-09 | 硅湖职业技术学院 | Active children's safety air bag drawstring control device and its control method |
| CN109591753B (en) * | 2018-11-30 | 2023-05-02 | 硅湖职业技术学院 | Active child safety airbag drawstring control device and control method thereof |
| CN110271507A (en) * | 2019-06-21 | 2019-09-24 | 北京地平线机器人技术研发有限公司 | A kind of air bag controlled method and device |
| CN110304258A (en) * | 2019-07-11 | 2019-10-08 | 苏州标图高级座椅有限公司 | A kind of aircraft safety seat |
| CN110435584A (en) * | 2019-07-19 | 2019-11-12 | 铁将军汽车电子股份有限公司 | On-vehicle safety prompt system and method |
| CN110789488A (en) * | 2019-10-09 | 2020-02-14 | 太航常青汽车安全系统（苏州）股份有限公司 | Intelligent safety airbag control system and method based on passenger sign recognition |
| CN110861604A (en) * | 2019-11-23 | 2020-03-06 | 安徽省阜阳市好希望工贸有限公司 | Child safety seat monitoring and alarming system and method |
| CN114852002A (en) * | 2022-04-22 | 2022-08-05 | 岚图汽车科技有限公司 | Side impact protection method, device, system and medium |
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Legal Events
| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170426 |
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| WD01 | Invention patent application deemed withdrawn after publication |