CN110562180A - Method and system for igniting safety airbag according to different passengers and vehicle - Google Patents
Method and system for igniting safety airbag according to different passengers and vehicle Download PDFInfo
- Publication number
- CN110562180A CN110562180A CN201910876926.XA CN201910876926A CN110562180A CN 110562180 A CN110562180 A CN 110562180A CN 201910876926 A CN201910876926 A CN 201910876926A CN 110562180 A CN110562180 A CN 110562180A
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- igniting
- airbag
- preset
- safety
- vehicle
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Classifications
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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
-
- 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
-
- 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
Abstract
The invention provides a method and a system for igniting an air bag according to different passengers and a vehicle, and relates to the field of vehicles. According to the invention, an electrode plate is arranged in an instrument panel, an electrode belt is embedded in a safety belt, a capacitance value between the electrode plate and the electrode belt is detected after a triggering instruction of fastening the safety belt by a passenger is received, the passenger is classified according to the capacitance value to generate passenger classification information, and finally, the explosion parameters of the safety airbag are determined according to the passenger classification information. The invention can determine the explosion parameters of the safety air bag aiming at the passengers with different body states so as to optimally protect the passengers.
Description
Technical Field
the invention relates to the field of vehicles, in particular to a method and a system for igniting an airbag according to different passengers and a vehicle.
background
With the increasing living standard of people, the automobile is taken as a transportation tool and has widely entered the family of common people. However, with the development of automobile safety technology and the increase of public safety awareness, how to provide the maximum injury avoidance for the passengers in the event of a collision accident of an automobile has become a major issue in research and development of various national regulations and vehicle enterprises.
In order to ensure that different safety belts and airbag explosion strategies are provided for drivers with different postures, accurate detection of the types of passengers needs to be realized, namely, the height and the thinness of the passengers can be distinguished on the basis of distinguishing people or objects on the seat. The detection of the passenger on the seat in the current automobile is mostly realized by a passenger weight sensor, and the working principle of the passenger weight sensor is to measure the weight of an object (human or non-human) on the seat to judge whether the passenger is on the seat. If the detected value exceeds the set value, the system determines that the seat has an occupant. If not, the system assumes that the seat is free of occupants. Obviously, the method for detecting the passenger by only using a single measurement parameter has low reliability, cannot detect the posture of the passenger, and is very easy to have misjudgment.
in addition, the safety air bag in the prior art cannot adopt different detonation strategies according to passengers with different body states.
disclosure of Invention
The invention aims to provide a method for igniting an airbag according to different passengers, and solves the problem that the prior art cannot set different ignition airbag strategies according to the passengers with different body states so as not to protect the passengers better.
It is a further object of the first aspect of the invention to reduce inspection costs.
It is an object of a second aspect of the present invention to provide a system for igniting an airbag in response to different occupants.
It is an object of a third aspect of the invention to provide a vehicle.
According to an object of a first aspect of the present invention, there is provided a method of igniting an airbag in response to different occupants, comprising:
Receiving a triggering instruction of fastening a safety belt by a passenger;
Detecting a capacitance value between an electrode plate in a vehicle instrument panel and an electrode belt in the safety belt;
Classifying the passengers according to the capacitance values and generating passenger classification information;
And determining the explosion parameters of the safety air bag according to the occupant classification information, wherein the explosion parameters are used for igniting the safety air bag according to a corresponding mode.
Optionally, the detonation parameters include at least detonation time, inflation amount, and inflation speed.
Optionally, after determining the explosion parameters of the airbag according to the occupant classification information, the method further includes:
Detecting collision information of the vehicle, wherein the collision information is generated after the vehicle collides;
Judging whether the safety airbag meets the requirements of explosion according to the collision information;
And if so, igniting the safety airbag according to the ignition parameters corresponding to the occupant classification information.
Optionally, when the capacitance value is greater than a preset capacitance threshold value, igniting the airbag by using a first preset ignition time;
And when the capacitance value is smaller than the preset capacitance threshold value, igniting the safety airbag by adopting second preset igniting time, wherein the first preset igniting time is smaller than the second preset igniting time.
According to the object of the second aspect of the present invention, there is also provided a system for igniting an airbag according to different occupants, comprising an information collecting module, a control module, and an airbag connected to the control module, wherein,
the information acquisition module is used for detecting a capacitance value between an electrode plate in a vehicle instrument board and an electrode belt in the safety belt after receiving a triggering instruction of fastening the safety belt by a passenger, and sending the capacitance value to the control module;
the control module is connected with the information acquisition module and used for carrying out grade classification on the passengers according to the capacitance values and generating passenger classification information, and then determining the explosion parameters of the safety air bag according to the passenger classification information, wherein the explosion parameters are used for igniting the safety air bag according to a corresponding mode.
optionally, the detonation parameters include at least detonation time, inflation amount, and inflation speed.
Optionally, the information acquisition module is further configured to detect collision information of the vehicle, and send the collision information to the control module, where the collision information is generated after the vehicle collides;
the control module is further used for judging that the safety air bag meets the detonation requirement according to the collision information and then detonating the safety air bag according to the detonation parameters corresponding to the passenger classification information.
optionally, the control module is configured to perform an explosion on the airbag with a first preset explosion time when the capacitance value is greater than a preset capacitance threshold value, and perform an explosion on the airbag with a second preset explosion time when the capacitance value is smaller than the preset capacitance threshold value, where the first preset explosion time is smaller than the second preset explosion time.
According to the object of the third aspect of the present invention, there is also provided a vehicle equipped with the system for igniting an airbag according to different occupants.
according to the invention, an electrode plate is arranged in an instrument panel, an electrode belt is embedded in a safety belt, the capacitance value between the electrode plate and the electrode belt is detected after a passenger fastens the safety belt, the passenger is classified according to the capacitance value to generate passenger classification information, and finally, the explosion initiating parameter of the safety airbag is determined according to the passenger classification information, wherein the explosion initiating parameter is used for igniting the safety airbag according to a corresponding mode. The invention can determine the explosion parameters of the safety air bag aiming at the passengers with different body states so as to optimally protect the passengers.
The passenger classification method and the passenger classification device can classify the passengers only through the capacitance value between the electrode plate in the meter panel and the electrode belt in the safety belt, replace the situation that the image information of the passengers is collected by the camera in the prior art so as to classify the passengers, reduce the development cost, are easy to realize and are simple to arrange.
the above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic flow diagram of a method of igniting an airbag based on different occupants, according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of a method of igniting an airbag based on different occupants, according to another embodiment of the present invention;
FIG. 3 is a schematic illustration of a small form occupant use vehicle according to one embodiment of the present invention;
FIG. 4 is a schematic illustration of a vehicle used by a gross occupant, according to one embodiment of the invention;
fig. 5 is a schematic structural view of a system for igniting an airbag according to different occupants, according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
FIG. 1 is a schematic flow diagram of a method of igniting an airbag based on different occupants, according to one embodiment of the present invention. As shown in FIG. 1, in one particular embodiment, the method of igniting an airbag 5 in response to different occupants generally includes the steps of:
S10, receiving a triggering instruction of fastening a safety belt by a passenger;
S20, detecting the capacitance value between the electrode plate in the instrument panel of the vehicle and the electrode belt in the safety belt;
s30, classifying the passengers according to the capacitance values and generating passenger classification information;
and S40, determining the explosion parameters of the safety air bag according to the occupant classification information, wherein the explosion parameters are used for igniting the safety air bag in a corresponding mode.
the invention is provided with the electrode plate in the instrument board, the electrode belt is embedded in the safety belt, the distance between the passenger and the instrument board can be visually reflected according to the capacitance change generated by different distances between the safety belt and the instrument board, the passenger can be detected and classified according to the information, the passenger is not easily influenced by environmental factors, and the accuracy is very high.
Specifically, the parameters of the explosion of the airbag include at least an explosion time, an inflation amount, and an inflation speed. The invention considers the influence of a plurality of factors of the safety air bag on different passengers, and can more accurately make different detonation strategies aiming at different passengers.
fig. 2 is a schematic flow chart of a method of igniting an airbag based on different occupants, as shown in fig. 2 and referring to fig. 1, according to another embodiment of the present invention, further including, after determining an ignition parameter of the airbag based on the occupant classification information:
s50, detecting collision information of the vehicle, wherein the collision information is generated after the vehicle collides;
s60, judging whether the safety air bag meets the explosion requirement according to the collision information;
And S70, if yes, igniting the safety airbag according to the ignition parameters corresponding to the occupant classification information.
The invention can determine the explosion parameters of the safety air bag aiming at the passengers with different body states, thereby optimally protecting the passengers when the vehicle collides.
in one embodiment, the airbag is detonated with a first preset detonation time when the detected capacitance value is greater than the preset capacitance threshold value, and with a second preset detonation time when the detected capacitance value is less than the preset capacitance threshold value, wherein the first preset detonation time is less than the second preset detonation time.
fig. 3 is a schematic view of a small form occupant using a vehicle according to one embodiment of the present invention. As shown in fig. 3, after the occupant with a small posture fastens the safety belt 20, since the distance L between the occupant sitting on the seat and the instrument panel 10 is long, the distance between the electrode plate 1 and the electrode belt is large, and the detected capacitance value is small, the analysis and the processing of the capacitance value can adopt the airbag ignition strategy with a late ignition time to protect the occupant when the vehicle collides.
FIG. 4 is a schematic illustration of a vehicle used by a gross-occupant, according to one embodiment of the invention. As shown in fig. 4, when a vehicle occupant with a large posture wears the safety belt 20, since the distance L between the vehicle occupant and the instrument panel 10 is short, the distance L between the electrode plate 1 and the electrode belt is small, and the detected capacitance value is large, the analysis and the processing of the capacitance value can adopt the airbag ignition strategy with an early ignition time to protect the vehicle occupant when the vehicle collides.
In addition, the vehicle detects that the occupant is not wearing the seat belt 20, detects the capacitance between the electrode plate 1 and the electrode belt, confirms that the occupant is not wearing the seat belt 20 when the detected capacitance value is 0, and protects the occupant in the vehicle by adopting an airbag ignition strategy with a later ignition timing when the vehicle collides. This is because the occupant who is not wearing the seatbelt 20 collides more quickly than the occupant who is wearing the seatbelt 20 at the time of a vehicle collision, the vehicle has not yet responded to the collision that the occupant has collided, and the injury of the occupant is increased if the airbag is normally ignited, so that it is necessary to adopt an airbag ignition strategy with a later ignition timing. The present invention also provides a specific airbag ignition strategy when the occupant is not wearing the seat belt 20, avoiding further injury to the injured occupant.
fig. 5 is a schematic structural view of a system for igniting an airbag according to different occupants, according to an embodiment of the present invention. As shown in fig. 5, and see fig. 1-4. In one particular embodiment, the system 100 for airbag squint based on different occupants may generally include an information acquisition module 3, a control module 4, and an airbag 5 coupled to the control module 4. The information acquisition module 3 is configured to receive a triggering instruction that the occupant fastens the seat belt 20, detect a capacitance value between the electrode plate 1 in the vehicle instrument panel 10 and the electrode belt 2 in the seat belt 20, and send the capacitance value to the control module 4. The control module 4 is connected with the information acquisition module 3 and is used for classifying passengers according to the capacitance values and generating passenger classification information, and then determining the explosion parameters of the safety airbag 5 according to the passenger classification information, wherein the explosion parameters are used for igniting the safety airbag 5 in a corresponding mode. Here, the parameters of the explosion include at least an explosion time, an amount of inflation, and an inflation speed.
The electrode plate 1 and the electrode belt 2 can be respectively integrated in the instrument panel 10 and the safety belt 20 of the vehicle as parts, and the arrangement and installation are simple and easy to realize.
further, the electrode belt 2 may be configured as a negative electrode, and the electrode plate 1 may be configured as a positive electrode accordingly, because the electrode belt 2 is disposed close to the occupant, which is safer to configure as a negative electrode to prevent the occupant from being injured.
In another embodiment, the information collection module 3 is further configured to detect collision information of the vehicle, and send the collision information to the control module 4, where the collision information is generated after the vehicle collides. The control module 4 is further configured to perform a squib parameter squib on the airbag 5 according to the occupant classification information after determining that the airbag 5 meets the squib requirement according to the collision information.
specifically, the control module 4 is configured to detonate the airbag 5 with a first preset detonation time when the capacitance value is greater than the preset capacitance threshold value, and to detonate the airbag 5 with a second preset detonation time when the capacitance value is less than the preset capacitance threshold value, wherein the first preset detonation time is less than the second preset detonation time.
In yet another embodiment, the electrode plate 1 may be installed on the back of a front seat, and the electrode belt 2 is embedded in the seat belt 20 of a rear seat. The invention can also classify the passengers in the rear row according to the posture of the passengers and optimally protect the passengers in the rear row by adopting different safety air bag 5 explosion strategies according to different passengers.
The invention also provides a vehicle equipped with the system for igniting the airbag according to different passengers in any one of the above embodiments. The system for igniting the airbag according to different passengers is not described in detail herein.
thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (9)
1. A method of igniting an airbag in response to different occupants, comprising:
Receiving a triggering instruction of fastening a safety belt by a passenger;
Detecting a capacitance value between an electrode plate in a vehicle instrument panel and an electrode belt in the safety belt;
Classifying the passengers according to the capacitance values and generating passenger classification information;
And determining an explosion parameter of the safety air bag according to the occupant classification information, wherein the explosion parameter is used for igniting the safety air bag according to a corresponding mode.
2. The method of claim 1,
the detonation parameters at least comprise detonation time, inflation quantity and inflation speed.
3. the method of claim 1, after determining the squib parameter of the airbag based on the occupant classification information, further comprising:
detecting collision information of the vehicle, wherein the collision information is generated after the vehicle collides;
Judging whether the safety airbag meets the requirements of explosion according to the collision information;
And if so, igniting the safety airbag according to the ignition parameters corresponding to the occupant classification information.
4. the method of claim 2,
when the capacitance value is larger than a preset capacitance threshold value, igniting the safety airbag by adopting a first preset igniting time;
and when the capacitance value is smaller than the preset capacitance threshold value, igniting the safety airbag by adopting second preset igniting time, wherein the first preset igniting time is smaller than the second preset igniting time.
5. A system for igniting an airbag according to different passengers is characterized by comprising an information acquisition module, a control module and an airbag connected with the control module, wherein,
the information acquisition module is used for detecting a capacitance value between an electrode plate in a vehicle instrument board and an electrode belt in the safety belt after receiving a triggering instruction of fastening the safety belt by a passenger, and sending the capacitance value to the control module;
The control module is connected with the information acquisition module and used for carrying out grade classification on the passengers according to the capacitance values and generating passenger classification information, and then determining the explosion parameters of the safety air bag according to the passenger classification information, wherein the explosion parameters are used for igniting the safety air bag according to a corresponding mode.
6. the system of claim 5,
the detonation parameters at least comprise detonation time, inflation quantity and inflation speed.
7. the system of claim 5,
the information acquisition module is further used for detecting collision information of the vehicle and sending the collision information to the control module, wherein the collision information is generated after the vehicle collides;
The control module is further used for judging that the safety air bag meets the detonation requirement according to the collision information and then detonating the safety air bag according to the detonation parameters corresponding to the passenger classification information.
8. The system of claim 6,
The control module is configured to perform detonation on the airbag by using a first preset detonation time when the capacitance value is greater than a preset capacitance threshold value, and perform detonation on the airbag by using a second preset detonation time when the capacitance value is less than the preset capacitance threshold value, wherein the first preset detonation time is less than the second preset detonation time.
9. A vehicle, characterized in that the vehicle is equipped with a system for igniting airbags according to different occupants, according to any of claims 5-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876926.XA CN110562180B (en) | 2019-09-17 | 2019-09-17 | Method and system for igniting safety airbag according to different passengers and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910876926.XA CN110562180B (en) | 2019-09-17 | 2019-09-17 | Method and system for igniting safety airbag according to different passengers and vehicle |
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| CN110562180A true CN110562180A (en) | 2019-12-13 |
| CN110562180B CN110562180B (en) | 2020-06-23 |
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| CN201910876926.XA Active CN110562180B (en) | 2019-09-17 | 2019-09-17 | Method and system for igniting safety airbag according to different passengers and vehicle |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111907462A (en) * | 2020-06-23 | 2020-11-10 | 上海擎感智能科技有限公司 | Control system for airbag, information processing method, system, medium, and apparatus |
| CN114987294A (en) * | 2022-06-07 | 2022-09-02 | 合众新能源汽车有限公司 | Vehicle control method, terminal and readable storage medium |
| CN115092090A (en) * | 2022-06-14 | 2022-09-23 | 中国第一汽车股份有限公司 | Self-adaptive safety airbag control method and control system based on safety belt |
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