CN106476736A - A kind of novel automobile air bag system device based on Body Mass Index - Google Patents

A kind of novel automobile air bag system device based on Body Mass Index Download PDF

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Publication number
CN106476736A
CN106476736A CN201610933258.6A CN201610933258A CN106476736A CN 106476736 A CN106476736 A CN 106476736A CN 201610933258 A CN201610933258 A CN 201610933258A CN 106476736 A CN106476736 A CN 106476736A
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China
Prior art keywords
mass index
ecu
body mass
control valve
air bag
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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.)
Pending
Application number
CN201610933258.6A
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Chinese (zh)
Inventor
孙苏民
曾发林
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Jiangsu University
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Jiangsu University
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Filing date
Publication date
Application filed by Jiangsu University filed Critical Jiangsu University
Priority to CN201610933258.6A priority Critical patent/CN106476736A/en
Publication of CN106476736A publication Critical patent/CN106476736A/en
Pending legal-status Critical Current

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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
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • 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
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • 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
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01512—Passenger detection systems
    • B60R21/01516—Passenger detection systems using force or pressure sensing means
    • 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
    • B60R2021/01252—Devices other than bags
    • B60R2021/01265—Seat belts
    • 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
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R2021/01325—Vertical acceleration

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)

Abstract

The invention discloses a kind of novel automobile air bag system device based on Body Mass Index, belong to auto parts machinery and security fields.The collision sensor system of this device is composed in parallel by n crash sensor, and semiautomatic-mode initialization system includes height input display, computation processor, ECU and gravity sensor；Gasifier system is made up of combustor and gas-forming agent, and combustor is divided into major and minor combustor, and two combustor pass through the first electric control valve and are connected；Air bag system includes conventional balloon and seat belt aerating gasbag, and seat belt aerating gasbag is connected with main chamber by the second electric control valve；The impact signal intensity of ECU Receiving collision sensor transmissions is thus control first, second electric control valve switch.The occupant that the present invention can effectively be directed to different weight index build adjusts airbag aeration density, improves the safety of occupant to the full extent, reduces and damage.

Description

A kind of novel automobile air bag system device based on Body Mass Index
Technical field
The invention belongs to auto parts machinery and security fields, particularly to a kind of novel automobile substitute based on Body Mass Index Bag system device.
Technical background
With the development of social progress and automobile industry, automobile has been no longer the simple walking-replacing tool that people need, People propose higher and higher requirement to the performance of automobile each side.Except paying close attention to the economy of automobile, handling, vibration damping subtracts Outside making an uproar property, the security performance of automobile is even more the eternally immutable topic of people.Carry to improve security performance and mitigation traffic accident The damage coming, the safe automobile air bag of traditional sense arises at the historic moment.
Though air bag traffic accident generation in serve protective effect, due to its blast inflation moment have very strong Impulsive force, still can produce certain damage to occupant.A series of safety collision performance test experiment and thing in recent years Therefore statistical data shows, cause the whiplash injury incidence rate to hypsokinesis head high because air bag is opened, simultaneously as When traffic accident occurs, speed die-offs, and human body has the very big inertia that leans forward, and traditional seat belt refers to relatively low people for body and also can make Become certain injury, these injuries have given the wounded personal and society brings increasingly heavier burden.
Different people has different Body Mass Indexs, and the big body fat of Body Mass Index is thicker, can be subject to the seat belt of very little Compressing is without hurting skeleton；And body refers to the partially thin occupant of smaller body type, accident brake inertia is little, in order to mitigate unnecessary height Density air bag thump, a kind of variable density aerating gasbag is particularly important.
Content of the invention
The invention provides a kind of novel automobile air bag system device based on Body Mass Index is it is therefore intended that according to reality The Body Mass Index of border occupant controls airbag aeration density and safety belt airbag inflation, reduces the same of air bag protection occupant as far as possible When the impact injury that brings.
In order to realize above-mentioned technical purpose, the present invention adopts the following technical scheme that：
A kind of novel automobile air bag system device based on Body Mass Index, including collision sensor system, semi-automatic Pattern initialization system, gasifier system and air bag system；
Described collision sensor system is composed in parallel by n crash sensor, wherein n >=3, and described crash sensor is used for The acceleration of vehicle when reading collision, inertia are experiencing the impact signal intensity of vehicle；
Described semiautomatic-mode initialization system includes height input display, computation processor, ECU and is arranged at Gravity sensor under seat, described height input display, computation processor, ECU and gravity sensor pass through data Line is attached and signal transmission；Described height input display is used for being manually entered height values, and described computation processor is included Simple computational algorithm, by the body weight value of the height values obtaining at height input display and gravity sensor according to BMI Body Mass Index formula enters row operation, and the body setting in operation result and ECU is referred to threshold value is compared process；Described ECU increases judgement and control unit function on existing vehicle ECU, for the impact of Receiving collision sensor transmissions Signal intensity；
Described gasifier system is made up of combustor and gas-forming agent, and described combustor is divided into main chamber and pair Combustor, passes through the first electric control valve and is connected, the first electric control valve is realized opening according to the signal of ECU between two combustor Open or close；Described air bag system includes conventional balloon and is arranged on seat belt aerating gasbag in seat belt, seat belt Aerating gasbag is connected with main chamber by the second electric control valve, and the second electric control valve is realized opening by ECU or closed Close；There is the gas-forming agent of conventional balloon 95%, the gas that subsidiary combustion chamber has conventional balloon 5% occurs in described main chamber Agent.
Further, computation processor built-in standard body weight index BMI body refers to formula is Body Mass Index n=body weight (kg)/body High square (m2).
Further, the body setting in ECU refer to threshold value as：Normal body-mass index is 18-25, and overweight Body Mass Index is 25-30, Mild Obesity Body Mass Index 30-35, central obesity Body Mass Index is 35-40, and severe simple obesity Body Mass Index is more than 40； Body index standard is classified, inclined ectomorphic type n≤25, overweight build 25 ＜ n≤35, soft-fat type n ＞ 35.
Further, when Body Mass Index n≤25, ECU output drive signal controls the second electric control valve to open, and Do not send signal and encourage the first electric control valve；When Body Mass Index 25 ＜ n≤35, ECU does not export any pumping signal, Conventional balloon inflation is supplied by main chamber gas-forming agent completely；When Body Mass Index n >=35, ECU output drive is believed Number control the first electric control valve open, conventional balloon inflation be commonly fed by main and auxiliary combustor's gas-forming agent.
Beneficial effects of the present invention are：The collision sensor system that the present invention is built by crash sensor, has accurately Efficient read informational function, can accurate judgement accident impact strength, prevent from opening by mistake air bag or read not open less than useful signal Air bag；Semiautomatic-mode initialization system, can calculate the Body Mass Index of occupant according to the occupant's height obtaining and body weight value, thus Judge that occupant size's is fat or thin, this is the first step of the secondary injury causing because of airbag-releasing when reduction accident occurs；Gas Generator system is designed to two combustor being connected by electric control valve, refers to, for not consubstantiality, the gas that occupant uses various dose Propellant, conventional balloon density can be changed, and body refers to relatively low occupant and just can play guarantor with the slightly lower conventional balloon of density Shield acts on, and reduces highdensity conventional balloon and brings unnecessary impact to injure to occupant while protection；Meanwhile, for body The little occupant's subcutaneous fat of finger is less, and the seat belt aerating gasbag that air bag system increases, when seat belt aerating gasbag is opened The skeleton ankle injury that occupant is caused because of seat belt due to inertia can be reduced to greatest extent.
Brief description
For the plan content of clearer explanation the application, now the accompanying drawing needed for example or description of the prior art is carried out Simple elaboration is introduced.
Fig. 1 is a kind of figure that designs a model of the novel automobile air bag system device based on Body Mass Index of the present invention；
Fig. 2 is a kind of structured flowchart of the novel automobile air bag system device based on Body Mass Index of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings and the specific embodiments invention is further described.
As shown in Figure 1, 2, a kind of novel automobile air bag system device based on Body Mass Index, including crash sensor System 1, semiautomatic-mode initialization system 2, gasifier system 3 and air bag system 4；
Collision sensor system 1 is composed in parallel by 3 crash sensors, and crash sensor is used for reading vehicle during collision Acceleration, inertia are experiencing the impact signal intensity of vehicle；
Semiautomatic-mode initialization system 2 includes height input display, computation processor, ECU and is arranged at seat Under gravity sensor, height input display, computation processor, ECU and gravity sensor carry out even by data wire Connect and signal transmission；Height input display is used for being manually entered height values, the included simple computational algorithm of computation processor, will The height values obtaining at height input display and the body weight value of gravity sensor are transported according to BMI Body Mass Index formula Calculate, and the body of operation result and setting in ECU is referred to threshold value and be compared process；ECU is in existing vehicle ECU Upper increasing judges and control unit function, for the impact signal intensity of Receiving collision sensor transmissions；
Gasifier system 3 is made up of combustor and gas-forming agent, and combustor is divided into main chamber and subsidiary combustion chamber, Pass through the first electric control valve between two combustor to be connected, the first electric control valve is realized opening according to the signal of ECU or closed Close；Air bag system 4 includes the conventional balloon being arranged in steering wheel or instrumental panel and is arranged on the seat belt in seat belt Aerating gasbag, seat belt aerating gasbag is connected with main chamber by the second electric control valve, and the second electric control valve passes through automatically controlled list Unit realizes being turned on and off；There is the gas-forming agent of conventional balloon 95%, subsidiary combustion chamber has conventional balloon 5% in main chamber Gas-forming agent.
It is Body Mass Index n=body weight (kg)/height square that computation processor built-in standard body weight index BMI body refers to formula (m2), the body setting in ECU refer to threshold value as：Normal body-mass index is 18-25, and overweight Body Mass Index is 25-30, slightly Fat Body Mass Index 30-35, central obesity Body Mass Index is 35-40, and severe simple obesity Body Mass Index is more than 40；Body index is accurate Classified, inclined ectomorphic type n≤25, overweight build 25 ＜ n≤35, soft-fat type n ＞ 35.When Body Mass Index n≤25, automatically controlled Unit output drive signal controls the second electric control valve to open, and does not send signal and encourage the first electric control valve；Now main burning The gas-forming agent burning supply conventional balloon of room and seat belt aerating gasbag, seat belt aerating gasbag gas-filled protective build is partially thin Occupant prevents or mitigates ankle injury, reduces the charge density of a little conventional balloon simultaneously, reduces certain on the premise of in order to be effective Impulsive force.When Body Mass Index 25 ＜ n≤35, ECU does not export any pumping signal, conventional balloon inflation completely by Main chamber gas-forming agent supplies.When Body Mass Index n >=35, ECU output drive signal controls the first electric control valve Open, conventional balloon inflation is commonly fed by main and auxiliary combustor's gas-forming agent, for the very big occupant of Body Mass Index, its inertia Impulsive force is very strong, in order to safety will occur dosage burning supply conventional balloon inflation with nominal gas.
A kind of work process of the novel automobile air bag system device based on Body Mass Index is：
After occupant gets on the bus, input the height of oneself first in height input display, meanwhile, be arranged at the weight under seat Power induction apparatuss read the body weight value of occupant, and height values carry out BMI body weight with body weight value by data line transfer to computation processor and refer to Number calculates, and result of calculation is passed to ECU, refers to threshold value with the body of ECU setting and is compared, and different contrasts is tied Fruit to control the switch of first, second electric control valve by the form of pumping signal.When a fault occurs, it is installed on touching of in-car Hit sensor and receive the acceleration of vehicle, inertia force when vehicle collision occurs, and the impact signal obtaining is passed by wire Judged to ECU, if impact signal meets air bag unlocking condition, ECU sends one to gas generator Ignition signal, gas-forming agent is ignited, and when the first electric control valve meets unlocking condition, subsidiary combustion chamber is common with main chamber Gas-forming agent is provided to burn to the inflation of seat belt aerating gasbag, when the second electric control valve meets and opens condition, seat belt gas Capsule is inflated work.
Only presently preferred embodiments of the present invention described above, the present invention is not limited to enumerate above-described embodiment it should say Bright, any those of ordinary skill in the art, under the teaching of this specification, all equivalent substitutes of being made, substantially become Shape form, all falls within the essential scope of this specification, ought to be protected by the present invention.

Claims (4)

1. a kind of novel automobile air bag system device based on Body Mass Index is it is characterised in that include crash sensor system System (1), semiautomatic-mode initialization system (2), gasifier system (3) and air bag system (4)；
Described collision sensor system (1) is composed in parallel by n crash sensor, wherein n >=3, and described crash sensor is used for The acceleration of vehicle when reading collision, inertia are experiencing the impact signal intensity of vehicle；
Described semiautomatic-mode initialization system (2) includes height input display, computation processor, ECU and is arranged at seat Gravity sensor under chair, described height input display, computation processor, ECU and gravity sensor pass through data wire It is attached and signal transmission；Described height input display is used for being manually entered height values, the included letter of described computation processor Single computational algorithm, by the body weight value of the height values obtaining at height input display and gravity sensor according to BMI body Weigh exponential formula and enter row operation, and the body of operation result and setting in ECU is referred to threshold value and be compared process；Described electricity Control unit increases judgement and control unit function on existing vehicle ECU, for the impact letter of Receiving collision sensor transmissions Number intensity；
Described gasifier system (3) is made up of combustor and gas-forming agent, and described combustor is divided into main chamber and pair Combustor, passes through the first electric control valve and is connected, the first electric control valve is realized opening according to the signal of ECU between two combustor Open or close；Described air bag system (4) includes conventional balloon and is arranged on seat belt aerating gasbag in seat belt, safety Band aerating gasbag is connected with main chamber by the second electric control valve, and the second electric control valve is realized opening by ECU or closed Close；There is the gas-forming agent of conventional balloon 95%, the gas that subsidiary combustion chamber has conventional balloon 5% occurs in described main chamber Agent.
2. a kind of novel automobile air bag system device based on Body Mass Index according to claim 1, its feature exists In it is Body Mass Index n=body weight (kg)/height square (m that computation processor built-in standard body weight index BMI body refers to formula2).
3. a kind of novel automobile air bag system device based on Body Mass Index according to claim 1, its feature exists In, the body setting in ECU refer to threshold value as：Normal body-mass index is 18-25, and overweight Body Mass Index is 25-30, slightly fertile Fat Body Mass Index 30-35, central obesity Body Mass Index is 35-40, and severe simple obesity Body Mass Index is more than 40；Body index standard is entered Row classification, inclined ectomorphic type n≤25, overweight build 25 ＜ n≤35, soft-fat type n ＞ 35.
4. a kind of novel automobile air bag system device based on Body Mass Index according to claim 3, its feature exists In when Body Mass Index n≤25, ECU output drive signal controls the second electric control valve to open, and does not send signal and swash Encourage the first electric control valve；When Body Mass Index 25 ＜ n≤35, ECU does not export any pumping signal, and conventional balloon is inflated Supplied by main chamber gas-forming agent completely；When Body Mass Index n >=35, ECU output drive signal controls the first electricity Control valve is opened, and conventional balloon inflation is commonly fed by main and auxiliary combustor's gas-forming agent.
CN201610933258.6A 2016-10-25 2016-10-25 A kind of novel automobile air bag system device based on Body Mass Index Pending CN106476736A (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN201610933258.6A CN106476736A (en) 2016-10-25 2016-10-25 A kind of novel automobile air bag system device based on Body Mass Index

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110377988A (en) * 2019-07-08 2019-10-25 清华大学 Occupant's road traffic accident damage forecast method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060042851A1 (en) * 2004-09-02 2006-03-02 Thomas Herrmann Passenger-protection device in a vehicle
CN101746344A (en) * 2008-12-21 2010-06-23 中国航天科技集团公司第四研究院第四十二所 Twin-stage type gas generator
CN101767560A (en) * 2008-12-29 2010-07-07 上海现代摩比斯汽车零部件有限公司 Improved passenger sensing system
CN102407805A (en) * 2010-09-20 2012-04-11 天津职业技术师范大学 Real-time monitoring system for state of automobile driver
CN204210419U (en) * 2014-10-15 2015-03-18 中国汽车技术研究中心 A kind of air bag gas generator of adjustable inflatable amount

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060042851A1 (en) * 2004-09-02 2006-03-02 Thomas Herrmann Passenger-protection device in a vehicle
CN101746344A (en) * 2008-12-21 2010-06-23 中国航天科技集团公司第四研究院第四十二所 Twin-stage type gas generator
CN101767560A (en) * 2008-12-29 2010-07-07 上海现代摩比斯汽车零部件有限公司 Improved passenger sensing system
CN102407805A (en) * 2010-09-20 2012-04-11 天津职业技术师范大学 Real-time monitoring system for state of automobile driver
CN204210419U (en) * 2014-10-15 2015-03-18 中国汽车技术研究中心 A kind of air bag gas generator of adjustable inflatable amount

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110377988A (en) * 2019-07-08 2019-10-25 清华大学 Occupant's road traffic accident damage forecast method
CN110377988B (en) * 2019-07-08 2020-05-22 清华大学 Passenger road traffic accident damage prediction method

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Application publication date: 20170308

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