CN2547585Y - Dual axial electronic control device of safety air bag for automobile - Google Patents
Dual axial electronic control device of safety air bag for automobile Download PDFInfo
- Publication number
- CN2547585Y CN2547585Y CN 02273589 CN02273589U CN2547585Y CN 2547585 Y CN2547585 Y CN 2547585Y CN 02273589 CN02273589 CN 02273589 CN 02273589 U CN02273589 U CN 02273589U CN 2547585 Y CN2547585 Y CN 2547585Y
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- impact
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- air bag
- electronic control
- microcontroller
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Abstract
The utility model provides a dual axial electronic control device of safety air bag for an automobile which can constantly monitor and analyze vertical, transverse and side anterior acceleration signals of automobile, accurately judge sizes of impact angles and impact directions, especially has a high sensitivity of side anterior impact and has a function of assisting a side impact sensor. The utility model comprises a power supply circuit, a backup ignition circuit, a microcontroller which is used for calculating impact acceleration and changing rate, impact speed, impact type and impact time, judging impact size of impact angle and direction, and exporting driving signals, a double blasting tube driving circuit, a safety sensor which is connected between an outlet end of the backup ignition circuit and an inlet end of the double blasting tube driving circuit and plays effects of misoperation prevention and reconfirmation, a warning lamp driving circuit which is connected with the microcontroller and an interface circuit, the device is also provided with a bi-axial accelerometer which is formed by a positive angle accelerometer and a negative angle accelerometer which are arranged from two side anterior directions.
Description
Technical field
The utility model relates to a kind of safe automobile air bag biaxial electronic control setup.
Technical background
Safe automobile air bag is deeply developing along with the vehicle passive safety Journal of Sex Research as the achievement of vehicle passive safety Journal of Sex Research.But for some reason, air bag system fails to popularize rapidly always.After the nineties, because the development of Collision test technology, the public add that safety air bag is remarkable for the protection effect of human body, so this product is popularized for the raising of the Eltec of safe requirement and safety air bag needs.China takes much count of automotive Airbag Technology, and in giving priority to project is listed it by country.Domestic a few family unit is just stepping up the research of gas-bag system, and the laboratory sample of gas generator and air bag controlled system (ECU) occurs, and carries out preliminary simulated collision test and real train test, all installs beginning on a collection of new model.Development as the electronic control unit of safety air bag core component has also been carried out perfect accordingly.
Existing safety air bag electronic control unit is that single shaft is to (direction that car advances), its function just simply senses the collision from the place ahead, for can only simply discerning less than the collision in the 90 degree scopes with respect to the place ahead, can not judge collision angle, the direction that takes place with collision still is on the right side on a left side, and for not discerning the activation safety restraint system above the collisions of 90 degree (as side impact, after bump or overturn), and single shaft to identification algorithm be a kind of simple algorithm, technology content is very low.The installation of this safety air bag electronic control unit can only only require in the vehicle safety rules that front-row occupant reaches for the injury from the place ahead in the vehicle of injury criteria for those, but exists to judge and can't protect front-row occupant in such cases the injury that comes from side the place ahead.
Summary of the invention
The objective of the invention is to solve the problems referred to above that prior art exists, provide a kind of can constantly monitor and analyze vehicle vertically, laterally and side the place ahead acceleration signal, accurately judge collision angle size and collision direction and have secondary side bump sensor function, highly sensitive, the safe automobile air bag biaxial electronic control setup that can play the safety precaution effect really of offside frontal collisions especially.
Technical solution of the present invention is: it has a power circuit, the backup point ignition circuit, be used to calculate crash acceleration and rate of change, collision velocity, the microcontroller of crash type and collision time and judgement collision angle size and Orientation and exportable drive signal, two booster driving circuits, be connected on and play the false action-proof and the safety sensor of affirmation effect again between backup point ignition circuit mouth and the two booster driving circuit input end, the warning light driving circuit and the interface circuit that link to each other with microcontroller, its special character is that this device also has a twin shaft to acceleration pick-up, said twin shaft to acceleration pick-up by two side the place aheads to arrange just, the negative angle acceleration pick-up constitutes.
According to above-mentioned safe automobile air bag biaxial electronic control setup, the layout angle of said positive and negative angle acceleration pick-up is respectively ± and 45 °.
Because two sensors of twin shaft in acceleration pick-up are side the place ahead to layout, the present invention has the following advantages:
1, can analyze vehicle collision, accurately judge the size of collision angle, the direction of collision is a left side or the right side, there is no need to activate safety restraint system thereby judge under corresponding situation.
2, offside the place ahead is especially highly sensitive to collision, and in fact maximum from the collision of this direction, so can play the safety precaution effect really.
3, can assist the side impact primary sensor when side impact takes place, to protect occupant's safety as the secondary side bump sensor in the most safe and reliable mode.
Description of drawings
Fig. 1 is a circuit block diagram of the present invention;
Fig. 2 is a fundamental diagram of the present invention.
The specific embodiment
It has a power circuit 1 that includes watchdog circuit; backup point ignition circuit 2; two booster driving circuits 8; be connected on the safety sensor 4 that plays false action-proof and affirmation effect again between backup point ignition circuit 2 mouths and two booster driving circuit 8 input ends; interface circuit 10; wherein the energy storage circuit in the backup point ignition circuit 2 has defencive function; when bumping because battery 3 damages or some other former thereby cause electronic control package not have external power supply to supply with, and at this moment rise electric energy that in-to-in energy storage electric capacity stores be enough to keep this device can activating air bag.This device also has a twin shaft to sensor 6, said twin shaft to acceleration pick-up 6 by two side the place aheads to layout just, negative angle acceleration pick- up 61,62 constitute, just said, negative angle acceleration pick- up 61,62 layout angle is respectively positive and negative 45 °, promptly become positive and negative 45 ° with auto body direction (axis), between the input end of the signal output part of acceleration pick-up 6 and two booster driving circuits 8, be connected to the microcontroller 7 that constitutes by micro controller system at twin shaft, corresponding output end at microcontroller 7 also is connected to warning light driving circuit 5 and seat belt buckle switch interface 9, and said microcontroller 7 calculates accekeration in the following order, divide folding:
First judgment means according to the signal of positive-angle (45 °) acceleration pick-up 61 input through acceleration A that acceleration counter calculated as foundation, determine whether to clash into, and an output signal be sent in the air bag drive signal output unit.Second judgment means determines whether to clash into according to accekeration A and rate of acceleration change C, and an output signal is sent in the air bag drive signal output unit.The 3rd judgment means is according to the acceleration/accel of the vehicle on negative angle (45 °) the acceleration pick-up 62 detection of vertical vehicle body axis directions, and its detection signal Ay is sent in the velocity calculator.This calculator calculates the cross velocity Vya of vehicle behind bump according to Ay, and its result of calculation is input in the 3rd judgment means with accekeration A.Air bag drive signal output unit determines according to the signal of first, second judgment means and the 3rd judgment means whether air bag needs to open.Need open if judge the definite air bag in back, then microcontroller 7 output signals to two booster driving circuits 8, are opened external air bag.
Claims (2)
1, a kind of safe automobile air bag biaxial electronic control setup, comprise power circuit, the backup point ignition circuit, be used to calculate crash acceleration and rate of change, collision velocity, the microcontroller of crash type and collision time and judgement collision angle size and Orientation and exportable drive signal, two booster driving circuits, be connected on and play the false action-proof and the safety sensor of affirmation effect again between backup point ignition circuit mouth and the two booster driving circuit input end, the warning light driving circuit and the interface circuit that link to each other with microcontroller, it is characterized in that this device also has a twin shaft to acceleration pick-up, said twin shaft to acceleration pick-up by two side the place aheads to arrange just, the negative angle acceleration pick-up constitutes.
2, safe automobile air bag biaxial electronic control setup according to claim 1 is characterized in that the layout angle of said positive and negative angle acceleration pick-up is respectively ± 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273589 CN2547585Y (en) | 2002-06-20 | 2002-06-20 | Dual axial electronic control device of safety air bag for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273589 CN2547585Y (en) | 2002-06-20 | 2002-06-20 | Dual axial electronic control device of safety air bag for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547585Y true CN2547585Y (en) | 2003-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02273589 Expired - Fee Related CN2547585Y (en) | 2002-06-20 | 2002-06-20 | Dual axial electronic control device of safety air bag for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547585Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101367368B (en) * | 2008-03-03 | 2010-06-02 | 清华大学 | Collision sensing method based on pressure and speed |
| CN101316742B (en) * | 2005-10-13 | 2011-02-09 | Trw汽车美国有限责任公司 | Apparatus for controlling a actuating restraining system of a vehicle |
| CN102470873A (en) * | 2009-07-16 | 2012-05-23 | 大陆汽车系统美国股份有限公司 | Method of determining the lateral velocity of a vehicle during abnormal driving situations |
| CN102673505A (en) * | 2012-05-09 | 2012-09-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Safety dealing system and method for vehicle collision |
| CN103043022A (en) * | 2012-12-25 | 2013-04-17 | 陕西宝成航空仪表有限责任公司 | Automobile airbag controller |
| CN103622643A (en) * | 2012-08-29 | 2014-03-12 | 科沃斯机器人科技(苏州)有限公司 | Automatic moving cleaning device |
| CN109955821A (en) * | 2017-12-25 | 2019-07-02 | 青岛市比亚迪汽车有限公司 | Automotive Safety Air Bags and vehicle with it |
| CN111140107A (en) * | 2019-12-31 | 2020-05-12 | 大陆汽车电子（连云港）有限公司 | Door unlocking device based on safety air bag controller and door unlocking method based on safety air bag controller |
| CN113291251A (en) * | 2021-07-08 | 2021-08-24 | 上海安亭地平线智能交通技术有限公司 | Safety protection method and device in vehicle collision, electronic apparatus, and medium |
-
2002
- 2002-06-20 CN CN 02273589 patent/CN2547585Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101316742B (en) * | 2005-10-13 | 2011-02-09 | Trw汽车美国有限责任公司 | Apparatus for controlling a actuating restraining system of a vehicle |
| CN101367368B (en) * | 2008-03-03 | 2010-06-02 | 清华大学 | Collision sensing method based on pressure and speed |
| CN102470873A (en) * | 2009-07-16 | 2012-05-23 | 大陆汽车系统美国股份有限公司 | Method of determining the lateral velocity of a vehicle during abnormal driving situations |
| US8862333B2 (en) | 2009-07-16 | 2014-10-14 | Continental Automotive Systems, Inc. | Method of determining the lateral velocity of a vehicle during abnormal driving situations |
| CN102470873B (en) * | 2009-07-16 | 2014-12-31 | 大陆汽车系统美国股份有限公司 | Method of determining the lateral velocity of a vehicle during abnormal driving situations |
| CN102673505A (en) * | 2012-05-09 | 2012-09-19 | 浙江吉利汽车研究院有限公司杭州分公司 | Safety dealing system and method for vehicle collision |
| CN102673505B (en) * | 2012-05-09 | 2015-06-03 | 浙江吉利汽车研究院有限公司杭州分公司 | Safety dealing system and method for vehicle collision |
| CN103622643A (en) * | 2012-08-29 | 2014-03-12 | 科沃斯机器人科技(苏州)有限公司 | Automatic moving cleaning device |
| CN103043022A (en) * | 2012-12-25 | 2013-04-17 | 陕西宝成航空仪表有限责任公司 | Automobile airbag controller |
| CN109955821A (en) * | 2017-12-25 | 2019-07-02 | 青岛市比亚迪汽车有限公司 | Automotive Safety Air Bags and vehicle with it |
| CN111140107A (en) * | 2019-12-31 | 2020-05-12 | 大陆汽车电子（连云港）有限公司 | Door unlocking device based on safety air bag controller and door unlocking method based on safety air bag controller |
| CN113291251A (en) * | 2021-07-08 | 2021-08-24 | 上海安亭地平线智能交通技术有限公司 | Safety protection method and device in vehicle collision, electronic apparatus, and medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030430 Termination date: 20100620 |