CN110816457B - Airbag detonation control method - Google Patents
Airbag detonation control method Download PDFInfo
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- CN110816457B CN110816457B CN201911067084.XA CN201911067084A CN110816457B CN 110816457 B CN110816457 B CN 110816457B CN 201911067084 A CN201911067084 A CN 201911067084A CN 110816457 B CN110816457 B CN 110816457B
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- airbag
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- 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
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- 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
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
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- 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
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- Air Bags (AREA)
Abstract
The invention relates to the technical field of vehicle safety, in particular to an airbag detonation control method, which comprises the following steps: s1, the air bag control unit judges whether the safety belt is fastened, if the safety belt is fastened, the step S2 is carried out, otherwise, the step S3 is carried out; s2, sensing the position of the seat by the first sensor and transmitting a position signal to the air bag control unit, and acquiring the extension length of the safety belt by the second sensor and transmitting a length signal to the air bag control unit; after the air bag control unit collects the signals of the collision sensor, the position signals and the length signals are analyzed to control the ignition output of different air bags; s3, sensing the position of the seat by the first sensor and transmitting a position signal to the air bag control unit; after the air bag control unit collects the signals of the collision sensor, the position signals are analyzed, and different air bags are controlled to be ignited and output. The invention can control the explosion of the air bag according to the actual condition of the passenger in the copilot, and fully ensure the personal safety of the passenger.
Description
Technical Field
The invention relates to the technical field of vehicle safety, in particular to an airbag detonation control method.
Background
With the continuous development of automobile manufacturing technology, more and more automobiles enter production life, and the keeping quantity of the automobiles is continuously increased. The automobile is convenient for people to live, and meanwhile, traffic accidents are frequent due to various reasons, so that the importance of automobile safety is getting more and more important in order to reduce personal injury caused by automobile accidents.
In the prior art, vehicles are generally provided with conventional passive airbags and safety belts to reduce the injury value of passengers in traffic accidents. The common strategy is that when a traffic accident occurs and the collision degree meets an airbag detonation threshold value, an airbag control unit sends out ignition current to detonate an airbag, and generally, the force and the speed of the ejected airbag are the same whether a passenger sitting in a copilot leans forwards or backwards in the vehicle collision process and whether the passenger is large in volume or small in volume. Thus, the face of the passenger is relatively close to or far away from the ejection port of the passenger airbag, so that the injury value of the passenger is very large when the airbag is ejected after being fully inflated in a collision, or the passenger is relatively far away after being fully inflated, and the airbag is deflated seriously when the face of the passenger reaches the surface of the airbag, so that the passenger cannot be well protected.
Therefore, an airbag detonation control method is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide an air bag detonation control method which can control the detonation of an air bag according to the actual condition of a passenger in a copilot and fully ensure the personal safety of the passenger.
In order to achieve the purpose, the invention adopts the following technical scheme:
an air bag detonation control method comprises the following steps:
s1, the air bag control unit judges whether the safety belt is fastened, if the safety belt is fastened, the step S2 is carried out, and if not, the step S3 is carried out;
s2, sensing the position of the seat by a first sensor and transmitting a position signal to the air bag control unit, and acquiring the extending length of the safety belt by a second sensor and transmitting a length signal to the air bag control unit; after the air bag control unit collects the signals of the collision sensor, the position signals and the length signals are analyzed, and different air bags are controlled to be ignited and output;
in step S2, when the first sensor senses that the position of the seat is greater than the set position threshold and the second sensor senses that the extension length of the seat belt is greater than the set length threshold, the airbag control unit controls the ignition output of the primary airbag and the secondary airbag after collecting the signal of the collision sensor;
in step S2, when the first sensor senses that the position of the seat is smaller than a set position threshold and the second sensor senses that the extension length of the seat belt is greater than a set length threshold, the airbag control unit controls the ignition output of the primary airbag after collecting a signal of a collision sensor;
s3, the first sensor senses the position of the seat and transmits a position signal to the air bag control unit; and after the air bag control unit acquires the signal of the collision sensor, the position signal is analyzed, and different air bags are controlled to be ignited and output.
Optionally, in step S2, when the first sensor senses that the position of the seat is greater than a set position threshold and the second sensor senses that the protruding length of the seat belt is less than a set length threshold, the airbag control unit controls the ignition output of the primary airbag and the secondary airbag after sensing a signal from a collision sensor.
Optionally, in step S2, when the first sensor senses that the position of the seat is smaller than a set position threshold and the second sensor senses that the protruding length of the seat belt is smaller than a set length threshold, the airbag control unit controls the primary airbag to ignite and output after collecting a signal from a collision sensor.
Optionally, in step S3, when the first sensor senses that the position of the seat is greater than the set position threshold, the airbag control unit collects a signal from a crash sensor and controls the ignition outputs of the primary airbag and the secondary airbag.
Optionally, in step S3, when the first sensor senses that the position of the seat is smaller than the set position threshold, the airbag control unit collects a signal of a collision sensor and controls the ignition output of the primary airbag.
Optionally, when the safety belt is fastened and then becomes unfastened, the airbag control unit acquires a signal of a collision sensor and controls the primary airbag to ignite and output.
Optionally, the position threshold can be calibrated.
Optionally, the length threshold can be calibrated.
The invention has the beneficial effects that:
the airbag detonation control method comprises the steps of firstly judging whether a safety belt is fastened or not, if so, transmitting a length signal of the extending length of the safety belt and a position signal of a seat to an airbag control unit, and after the airbag control unit acquires a signal of a collision sensor, analyzing the position signal and the length signal to control different airbags to ignite and output; if the seat is not fastened, the position signal of the seat is transmitted to the air bag control unit, and after the air bag control unit acquires the signal of the collision sensor, the position signal is analyzed to control different air bags to ignite and output; therefore, the airbag is controlled to explode according to the actual condition of the passenger in the copilot, and the effect of fully ensuring the personal safety of the passenger can be achieved.
Drawings
Fig. 1 is a flowchart of an airbag detonation control method of the present invention.
Detailed Description
The technical scheme of the invention is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to control the explosion of the airbag according to the actual condition of the passenger in the co-driver and fully ensure the personal safety of the passenger, as shown in fig. 1, the invention provides an airbag explosion control method, which comprises the following steps:
s1, the air bag control unit judges whether the safety belt is fastened, if the safety belt is fastened, the step S2 is carried out, otherwise, the step S3 is carried out;
s2, sensing the position of the seat by the first sensor and transmitting a position signal to the air bag control unit, and acquiring the extension length of the safety belt by the second sensor and transmitting a length signal to the air bag control unit; after the air bag control unit collects the signals of the collision sensor, the position signals and the length signals are analyzed to control the ignition output of different air bags;
and S3, the first sensor senses the position of the seat and transmits a position signal to the air bag control unit, and the air bag control unit analyzes the position signal after acquiring the signal of the collision sensor and controls different air bags to ignite and output.
In this embodiment, specifically, the airbag control unit includes a collision data processing module, a collision accident analysis module and an airbag ignition circuit module, where the collision data processing module and the collision accident analysis module are used to receive and analyze signals from the collision sensor, and the airbag ignition circuit module controls the ignition of the airbag; the first sensor is a slide rail sensor and is used for sensing the position of the seat and transmitting a position signal to the air bag control unit, and the second sensor is a length detection sensor and is used for acquiring the extension length of the safety belt and transmitting a length signal to the air bag control unit.
The method comprises the steps of firstly judging whether a safety belt is fastened or not, if so, transmitting a length signal of the extending length of the safety belt and a position signal of a seat to an air bag control unit, and analyzing the position signal and the length signal after the air bag control unit acquires a signal of a collision sensor to control ignition output of different air bags; if the seat is not fastened, the position signal of the seat is transmitted to the air bag control unit, and after the air bag control unit acquires the signal of the collision sensor, the position signal is analyzed to control different air bags to ignite and output; therefore, the airbag is controlled to explode according to the actual condition of the passenger in the copilot, and the effect of fully ensuring the personal safety of the passenger can be achieved.
Further, in step S2, when the first sensor senses that the position of the seat is greater than the set position threshold and the second sensor senses that the extension length of the seat belt is greater than the set length threshold, the airbag control unit controls the ignition output of the primary airbag and the secondary airbag after sensing the signal of the crash sensor. At the moment, the passenger is positioned at a later position, the primary air bag and the secondary air bag are ignited, and the air bag is effectively filled into a gap between the vehicle and the passenger, so that the passenger is effectively protected.
Further, in step S2, when the first sensor senses that the position of the seat is smaller than the set position threshold and the second sensor senses that the extension length of the seat belt is greater than the set length threshold, the airbag control unit controls the ignition output of the primary airbag after sensing the signal of the collision sensor. At the moment, the position of the passenger is closer to the front, and the requirement of buffering can be met only by igniting the primary air bag.
Further, in step S2, when the first sensor senses that the position of the seat is greater than the set position threshold and the second sensor senses that the extension length of the seat belt is less than the set length threshold, the airbag control unit controls the ignition output of the primary airbag and the secondary airbag after sensing the signal of the crash sensor. The safety of passengers is ensured through the buffering of the first-level air bag and the second air bag.
Further, in step S2, when the first sensor senses that the position of the seat is smaller than the set position threshold and the second sensor senses that the extension length of the seat belt is smaller than the set length threshold, the airbag control unit controls the ignition output of the primary airbag after sensing the signal of the collision sensor.
Further, in step S3, when the first sensor senses that the position of the seat is greater than the set position threshold, the airbag control unit collects the signal of the crash sensor and controls the ignition output of the primary airbag and the secondary airbag. Further, in step S3, when the first sensor senses that the position of the seat is smaller than the set position threshold, the airbag control unit collects the signal of the collision sensor and controls the ignition output of the primary airbag.
Furthermore, when the safety belt is fastened and becomes unfastened, the air bag control unit acquires a signal of the collision sensor and controls the primary air bag to ignite and output.
Specifically, the position threshold and the length threshold can be calibrated according to actual needs or the state of the passenger, so that the position threshold and the length threshold are closer to the actual application.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (8)
1. An airbag detonation control method is characterized by comprising the following steps:
s1, the air bag control unit judges whether the safety belt is fastened, if the safety belt is fastened, the step S2 is carried out, and if not, the step S3 is carried out;
s2, sensing the position of the seat by a first sensor and transmitting a position signal to the air bag control unit, and acquiring the extending length of the safety belt by a second sensor and transmitting a length signal to the air bag control unit; after the air bag control unit collects the signals of the collision sensor, the position signals and the length signals are analyzed, and different air bags are controlled to be ignited and output;
in step S2, when the first sensor senses that the position of the seat is greater than the set position threshold and the second sensor senses that the extension length of the seat belt is greater than the set length threshold, the airbag control unit controls the ignition output of the primary airbag and the secondary airbag after collecting the signal of the collision sensor;
in step S2, when the first sensor senses that the position of the seat is smaller than a set position threshold and the second sensor senses that the extension length of the seat belt is greater than a set length threshold, the airbag control unit controls the ignition output of the primary airbag after collecting a signal of a collision sensor;
s3, the first sensor senses the position of the seat and transmits a position signal to the air bag control unit; and after the air bag control unit acquires the signal of the collision sensor, the position signal is analyzed, and different air bags are controlled to be ignited and output.
2. An airbag ignition control method as claimed in claim 1, wherein in step S2, when the first sensor senses that the seat position is greater than a preset position threshold value and the second sensor senses that the extension length of the seat belt is less than a preset length threshold value, the airbag control unit controls the ignition output of the primary airbag and the secondary airbag after sensing the signal of the crash sensor.
3. An airbag ignition control method as claimed in claim 1, wherein in step S2, when the first sensor senses that the seat position is smaller than a set position threshold and the second sensor senses that the extension length of the seat belt is smaller than a set length threshold, the airbag control unit controls the primary airbag to ignite and output after collecting the signal of the crash sensor.
4. An airbag ignition control method as claimed in claim 1, wherein in step S3, when the first sensor senses that the position of the seat is greater than the set position threshold, the airbag control unit collects the signal of the collision sensor and controls the ignition output of the primary airbag and the secondary airbag.
5. An airbag ignition control method as claimed in claim 1, wherein in step S3, when the first sensor senses that the position of the seat is smaller than a set position threshold, the airbag control unit collects a signal from a collision sensor and controls the ignition output of the primary airbag.
6. An air bag ignition control method according to claim 1, characterized in that when the safety belt is fastened and becomes unfastened, the air bag control unit acquires a signal of a collision sensor and controls the ignition output of the primary air bag.
7. An air bag detonation control method according to claim 1, characterised in that the position threshold is calibratable.
8. An air bag detonation control method according to claim 1, characterised in that the length threshold is calibratable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067084.XA CN110816457B (en) | 2019-11-04 | 2019-11-04 | Airbag detonation control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911067084.XA CN110816457B (en) | 2019-11-04 | 2019-11-04 | Airbag detonation control method |
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| Publication Number | Publication Date |
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| CN110816457A CN110816457A (en) | 2020-02-21 |
| CN110816457B true CN110816457B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911067084.XA Active CN110816457B (en) | 2019-11-04 | 2019-11-04 | Airbag detonation control method |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4306229B2 (en) * | 2002-04-03 | 2009-07-29 | タカタ株式会社 | Collision detection device and safety device |
| US6796578B2 (en) * | 2002-11-08 | 2004-09-28 | Key Safety Systems, Inc. | Airbag with bag mounted sensor |
| KR100887954B1 (en) * | 2002-12-20 | 2009-03-09 | 현대자동차주식회사 | Air bag controlling system of vehicle and method thereof |
| JP4103638B2 (en) * | 2003-03-14 | 2008-06-18 | トヨタ自動車株式会社 | Vehicle occupant protection device |
| CN101269642A (en) * | 2007-03-23 | 2008-09-24 | 上海奇谋能源技术开发有限公司 | Method and apparatus for correcting control system of safety air bag with seat |
| CN101269645A (en) * | 2007-03-23 | 2008-09-24 | 上海奇谋能源技术开发有限公司 | Method and apparatus for adjusting safety air bag control system |
| CN101885317B (en) * | 2009-05-12 | 2012-03-07 | 上海工程技术大学 | Safety airbag explosion control method and device |
| CN202243310U (en) * | 2011-09-02 | 2012-05-30 | 浙江吉利汽车研究院有限公司 | Explosion control device for automobile |
| US10328888B2 (en) * | 2016-12-15 | 2019-06-25 | Ford Global Technologies, Llc | Lap-belt length detecting seatbelt assembly |
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