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 PDF

Info

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
Authority
CN
China
Prior art keywords
air bag
sensor
safety
ecu
module
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
Application number
CN201611034597.7A
Other languages
Chinese (zh)
Inventor
李如权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengdu Fisherman Technology Co Ltd
Original Assignee
Chengdu Fisherman Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chengdu Fisherman Technology Co Ltd filed Critical Chengdu Fisherman Technology Co Ltd
Priority to CN201611034597.7A priority Critical patent/CN106585545A/en
Publication of CN106585545A publication Critical patent/CN106585545A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204Actuation parameters of safety arrangents
    • B60R2021/01211Expansion of air bags
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204Actuation parameters of safety arrangents
    • B60R2021/01211Expansion of air bags
    • B60R2021/01225Expansion of air bags control of expansion volume
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204Actuation parameters of safety arrangents
    • B60R2021/01211Expansion of air bags
    • B60R2021/01231Expansion of air bags control of expansion timing or sequence
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204Actuation parameters of safety arrangents
    • B60R2021/01252Devices other than bags
    • B60R2021/01265Seat belts
    • B60R2021/01272Belt 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

The airbag control device of protection type is judged based on weight
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.
CN201611034597.7A 2016-11-18 2016-11-18 Air bag control device for judging protecting types based on weight Pending CN106585545A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (10)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN106585545A (en) Air bag control device for judging protecting types based on weight
CN204870870U (en) Can discern air bag control system of passenger's type
CN104401285A (en) Restraint system for automatically adapting to type of passenger in vehicle and control method thereof
CN201824996U (en) Automobile seat headrest
CN103395401B (en) Automobile tail air bag system
CN103786681A (en) Active child safety airbag device for school bus and control method thereof
CN105905061A (en) Seat adjusting device with tailgating protection function and seat adjusting method
CN101804800A (en) Automobile frontal collision active protection system
US10131308B2 (en) Safety on-board vehicle multi-force restraint system employing a weighing moderator
CN1989028B (en) Safety device
CN203211245U (en) Automotive control device for protecting safety of passenger in middle of rear row
CN109398289A (en) Active children's safety airbag apparatus and its control method
CN204309734U (en) A kind of constrained system of automatic adaptation passenger type
Chan A treatise on crash sensing for automotive air bag systems
CN203126742U (en) Air bag based on single chip microcomputer
CN105752015A (en) Automobile safety airbag control system
CN107380113A (en) A kind of vertical depression formula automotive airbag
CN202935312U (en) Novel pedestrian safety air bag application device
CN105094107A (en) Control method of safety diagnosis module in rear collision of vehicle
CN203305948U (en) Novel multi-protection auxiliary safety air bag of automobile
CN106043194A (en) Intelligent air bag driven to open by spring
CN205706576U (en) A kind of safe automobile air bag
CN204020790U (en) A kind of device of automobile external safety air bag
CN102582557B (en) The series multifunctional workbox controlled opening device of saving oneself of vehicle mounted traffic accident
CN110979237A (en) Early warning method and device for automobile copilot

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20170426

WD01 Invention patent application deemed withdrawn after publication