CN105172735B - Automobile copilot airbag control system based on diversiform data communication - Google Patents
Automobile copilot airbag control system based on diversiform data communication Download PDFInfo
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- CN105172735B CN105172735B CN201510646210.2A CN201510646210A CN105172735B CN 105172735 B CN105172735 B CN 105172735B CN 201510646210 A CN201510646210 A CN 201510646210A CN 105172735 B CN105172735 B CN 105172735B
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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
- 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
-
- 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
- B60R21/02—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
- B60R21/264—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 using instantaneous generation of gas, e.g. pyrotechnic
-
- 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
- B60R21/264—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 using instantaneous generation of gas, e.g. pyrotechnic
- B60R21/2644—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 using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Bags (AREA)
Abstract
The present invention relates to a kind of automobile copilot airbag control system based on diversiform data communication, including air bag mechanism, impact strength sensor, ultrasonic sensor, passenger attitude testing agency and digital signal processor DSP, impact strength sensor is used to detect the rate of acceleration change of automobile, ultrasonic sensor is used to detect horizontal range of the copilot station passenger trunk apart from instrument board, passenger attitude testing agency is used to detect the angle of copilot station passenger trunk and leg, digital signal processor is based on impact strength sensor, the testing result of ultrasonic sensor and passenger attitude testing agency determines that the air bag main body of air bag mechanism launches strategy.By means of the invention it is possible to different airbag-releasing modes are determined according to the specific seating situation of passenger on automobile copilot position in real time, with while passenger safety is ensured, it is to avoid air bag accidentally injures passenger.
Description
The present invention is the Application No. 201510250257.7, applying date on May 15th, 2015, entitled " is based on
The divisional application of the patent of the automobile copilot airbag control system of diversiform data communication ".
Technical field
The present invention relates to Communication Control field, more particularly to a kind of automobile copilot air bag based on diversiform data communication
Control system.
Background technology
In the last few years, automobile quantity was on the increase, and increasing family and unit have added automobile, and people ride in an automobile
The time gone on a journey as the vehicles is continuously increased.
Automobile for people bring convenience while, also bring some safety problems, according to investigations as shown by data, touched in automobile
When hitting, death rate highest position is automobile copilot position, is on the one hand that the natural reaction due to driver in collision is led
Cause, on the other hand, automobile is relatively more to the safeguard measure of driver, and the protection of the passenger to automobile copilot position
Measure relative force is inadequate.
The safeguard measure of the passenger to automobile copilot position of the prior art is mainly reflected on air bag, but
Sitting posture and position discounting for the passenger of automobile copilot position, and gas is opened in selection when colliding in the same manner
Capsule, although this mode brings conveniently for design, is also possible to cause passenger because of the imappropriate of airbag-releasing mode
Accidentally injured by air bag.
Accordingly, it would be desirable to a kind of new automobile copilot airbag control system based on diversiform data communication, being capable of basis
The sitting posture of the passenger of automobile copilot position and position, intelligently automatically select the expansion amplitude of air bag, with omnibearing protection
The safety of the passenger of automobile copilot position.
The content of the invention
In order to solve the above problems, the invention provides a kind of automobile copilot air bag control based on diversiform data communication
System processed, is used to detect horizontal range of the copilot station passenger trunk apart from instrument board using ultrasonic sensor, described
Passenger attitude testing agency is used to detect the angle of copilot station passenger trunk and leg, is determined with horizontal range and angle
The expansion mode of air bag, while also introducing weight detecting technology and Radio Transmission Technology, improves logical based on diversiform data
The automaticity of the automobile copilot airbag control system of news.
According to an aspect of the present invention, there is provided a kind of automobile copilot air bag controlled system based on diversiform data communication
System, the control system includes air bag mechanism, impact strength sensor, ultrasonic sensor, passenger attitude testing agency sum
Word signal processor, the impact strength sensor is used to detect the rate of acceleration change of automobile, and the ultrasonic sensor is used
In horizontal range of the copilot station passenger trunk apart from instrument board is detected, the passenger attitude testing agency is used to detect pair
Steering position passenger trunk and the angle of leg, the digital signal processor and the air bag mechanism, the impact strength
Sensor, the ultrasonic sensor and the passenger attitude testing agency connect respectively, based on the impact strength sensor,
The testing result of the ultrasonic sensor and the passenger attitude testing agency determines the air bag main body exhibition of the air bag mechanism
Open strategy.
More specifically, in the automobile copilot airbag control system based on diversiform data communication, also including：It is standby
It is described when collision scenario causes automobile storage battery and automobile current generator all to be disconnected with the control system with power supply
Each equipment in control system provides power supply；Static memory, for prestoring rate of acceleration change threshold value, the first distance
Threshold value, second distance threshold value, first angle threshold value and second angle threshold value, be additionally operable to prestore human body gray scale upper limit threshold and
Human body gray scale lower threshold, the human body gray scale upper limit threshold and the human body gray scale lower threshold are used for the human body in image
With background separation, the rate of acceleration change threshold value, first distance threshold, the second distance threshold value, described first jiao
Degree threshold value, the second angle threshold value, the human body gray scale upper limit threshold and human body gray scale lower threshold are all the control system
The parameter that system is pre-filled with when dispatching from the factory by manufacturer, first distance threshold is more than the second distance threshold value, described first
Angle threshold is more than the second angle threshold value；Weight sensor, is arranged on co-driver seat of automobile lower section, for detecting in vapour
Whether there is passenger on car assistant driver seat, when passenger is detected the presence of, be input into occupied signal, do not exist when detecting
During passenger, it is input into without passenger signals；Wireless transceiver, is arranged on car body, is connected with the digital signal processor, uses
In the horizontal range and copilot station passenger trunk that will be received automobile unit one belongs to is wirelessly sent to the angle of leg
Internal network on；The air bag mechanism includes air bag main body, gas generator and solid fuel storage tank, the air bag main body
It is connected with the solid fuel storage tank, the gas generator is connected with the solid fuel storage tank, it is described for lighting
Fuel in solid fuel storage tank is producing gas to be filled with the air bag main body；The impact strength sensor is located at automobile
Instrument board in, the rate of acceleration change for detecting automobile；The ultrasonic sensor is located on automobile instrument panel, including super
Acoustic transmitter, ultrasonic receiver and microcontroller, the microcontroller and the ultrasound wave emitter and the ultrasonic wave
Receiver is connected respectively, and the ultrasound wave emitter launches ultrasonic wave to copilot station passenger trunk, and the ultrasonic wave connects
Receipts machine receives the ultrasonic wave of copilot station passenger trunk reflection, hair of the microcontroller according to the ultrasound wave emitter
Penetrate time, the reception time of the ultrasonic receiver and ultrasonic propagation velocity and calculate copilot station passenger's trunk distance
The horizontal range of instrument board, the ultrasonic propagation velocity is 340 metre per second (m/s)s；The passenger attitude testing agency is taken the photograph including high definition
As head, gray proces device, passenger's identifier and gesture recognizer；The high-definition camera is arranged on driver chair of automobile side
A posts top, for being shot to obtain high definition passenger image to copilot station passenger, the high definition passenger image point
Resolution is 1920 × 1080；The gray proces device is connected with the high-definition camera, for being held to the high definition passenger image
Row gray processing treatment, to obtain gray scale passenger image；Passenger's identifier and the gray proces device and the static storage
Device is connected respectively, by gray value in the gray scale passenger image in the human body gray scale upper limit threshold and the human body gray scale lower limit
All pixels composition human body pattern between threshold value；The gesture recognizer is connected with passenger's identifier, by the human body
Trunk portion identifies and as copilot station passenger trunk and the angle of leg with the angle of human leg in pattern
Output；The digital signal processor and the gas generator, the weight sensor, the static memory, described touch
Intensity sensor, the ultrasonic sensor and the gesture recognizer is hit to connect respectively, when receive occupied signal and
Rate of acceleration change is more than or equal to rate of acceleration change threshold value, into airbag deployment pattern, when receiving without passenger signals or add
Percentage speed variation is less than rate of acceleration change threshold value, into air bag take-back model；Wherein, the digital signal processor is described
In airbag deployment pattern, when the horizontal range for receiving is more than or equal to first distance threshold and copilot station passenger's trunk
When portion is more than or equal to the first angle threshold value with the angle of leg, sends high intensity to the gas generator and launch signal,
When the horizontal range for receiving is between first distance threshold and the second distance threshold value and copilot station passenger's body
When the angle of cadre and leg is between the first angle threshold value and the second angle threshold value, sent out to the gas generator
Low-intensity is sent to launch signal, when the horizontal range for receiving is less than or equal to the second distance threshold value and copilot station passenger's body
When cadre is less than or equal to the second angle threshold value with the angle of leg, is sent to the gas generator and suppress to launch signal；
The signal type that the gas generator sends according to receive, digital signal processor, controls it to light the solid-state and fires
The mode of the fuel in material storage tank.
More specifically, in the automobile copilot airbag control system based on diversiform data communication, also including：It is aobvious
Show device, be arranged on automobile instrument panel, be connected with the digital signal processor, for display horizontal range in real time, be additionally operable to
The angle of copilot station passenger trunk and leg is shown in real time.
More specifically, in the automobile copilot airbag control system based on diversiform data communication：The gas
Generator lights the whole fuel in the solid fuel storage tank when high intensity expansion signal is received.
More specifically, in the automobile copilot airbag control system based on diversiform data communication：The gas
Generator lights the half fuel in the solid fuel storage tank when low-intensity expansion signal is received.
More specifically, in the automobile copilot airbag control system based on diversiform data communication：The gas
Generator lights a quarter fuel in the solid fuel storage tank when suppression expansion signal is received.
Brief description of the drawings
Embodiment of the present invention is described below with reference to accompanying drawing, wherein：
Fig. 1 is the automobile copilot air bag controlled system based on diversiform data communication according to embodiment of the present invention
The block diagram of system.
Fig. 2 is the automobile copilot air bag controlled system based on diversiform data communication according to embodiment of the present invention
The block diagram of the passenger attitude testing agency of system.
Specific embodiment
Below with reference to accompanying drawings to the automobile copilot airbag control system based on diversiform data communication of the invention
Embodiment is described in detail.
In order to ensure the safety of car occupant, in the prior art, all in automobile, each position is provided with most vehicles
Different air bags.
Air bag is configured as the auxiliary of vehicle body passive safety, is increasingly valued by people.When automobile is touched with barrier
After hitting, referred to as primary collision, occupant collides with in-car component, referred to as secondary collision, air bag after primary collision, secondary touch
A gassiness air cushion of internal airbag is opened before hitting rapidly, occupant " is flutterred on air cushion " when being moved because of inertia so as to slow
The impact that is subject to occupant simultaneously absorbs collision energy, mitigates the extent of injury of occupant.
In front of air bag distribution in the car (positive co-driver), in-car front-seat and three directions in heel row side and roof.Safety
The invention of air bag comes from once accident more scared than hurt.Nineteen fifty-two, American engineer Hetrick in once driving, in order to hide
A barrier is kept away, steering wheel and brake hard are hit immediately.Meanwhile, he and wife all make a stretch of the arm by the light of nature protect work as
When daughter on front-seat center seat.Although more scared than hurt, this position engineer that becomes professional through self-learning therefrom is inspired.He thinks
There must be a kind of protection device, arm can be replaced to deprotect the driver and crew of preshoot in brake hard or collision.He utilizes
The time of fortnight have devised a kind of bumper device for car, and its principle is to fill one under hood to fill with compression
The gas receiver of air, when automobile is subject to head-on crash, inertial impact force promotes one to slide pouring weight forward movement, so as to promote
Gas receiver reduces wound to the air bag fast aeration being hidden in by steering wheel center and instrument board such that it is able to personnel in making car
Evil.
With being rooted in the hearts of the people for vehicle passive security importance, the luxurious in some top grades of up to 30 several air bags is occurred in that
Car neck, knee, even the both sides of roof can be furnished with two tubular bladders, can effectively delay when fortuitous event occurs
Solution coordinates side gas curtain to be effectively protected the head and neck of passenger from the lower pressure above roof.Knee portions of leg regions
Air bag is located in front-seat driver seat, once the waist lower limb body region that can effectively protect rear passenger is opened, so as to can also delay
Forward momentum of the solution from head-on crash.
However, in the prior art, although copilot station passenger death rate highest in car crass, to co-driver
Unspecial even more efficient safety guarantee mechanism is put, meanwhile, the unfolding mode of the air bag of copilot station is relatively simple,
Self-adaptative adjustment can not be carried out according to passenger attitude and position, easily cause the situation that passenger is accidentally injured by air bag.
In order to overcome above-mentioned deficiency, the present invention to build a kind of automobile copilot air bag control based on diversiform data communication
System processed, is provided with a set of efficient airbag control system, and adopt with electronic control mode exclusively for automobile copilot position
Passenger attitude and position are detected with high-precision detecting instrument, at utmost to realize that air bag is protected to the safety of human body
Barrier is acted on.
Fig. 1 is the automobile copilot air bag controlled system based on diversiform data communication according to embodiment of the present invention
The block diagram of system, the control system includes air bag mechanism 1, impact strength sensor 2, ultrasonic sensor 3, Cheng Kezi
State testing agency 4 and digital signal processor 5, the impact strength sensor 2 are used to detect the rate of acceleration change of automobile, institute
Ultrasonic sensor 3 is stated for detecting horizontal range of the copilot station passenger trunk apart from instrument board, the passenger attitude
Testing agency 4 is used to detect the angle of copilot station passenger trunk and leg.
Wherein, the digital signal processor 5 and the air bag mechanism 1, the impact strength sensor 2, the ultrasound
Wave sensor 3 and the passenger attitude testing agency 4 connect respectively, are passed based on the impact strength sensor 2, the ultrasonic wave
The testing result of sensor 3 and the passenger attitude testing agency 4 determines that the air bag main body of the air bag mechanism 1 launches strategy.
Then, the specific knot to the automobile copilot airbag control system based on diversiform data communication of the invention is continued
Structure is further detailed.
The control system also includes：Stand-by power supply, automobile storage battery and automobile current generator are caused in collision scenario
When all being disconnected with the control system, for each equipment in the control system provides power supply.
The control system also includes：Static memory, for prestoring rate of acceleration change threshold value, first apart from threshold
Value, second distance threshold value, first angle threshold value and second angle threshold value, are additionally operable to prestore human body gray scale upper limit threshold and people
Body gray scale lower threshold, the human body gray scale upper limit threshold and the human body gray scale lower threshold be used for by the human body in image with
Background separation, the rate of acceleration change threshold value, first distance threshold, the second distance threshold value, the first angle
Threshold value, the second angle threshold value, the human body gray scale upper limit threshold and human body gray scale lower threshold are all the control system
The parameter being pre-filled with by manufacturer when dispatching from the factory, first distance threshold is more than the second distance threshold value, described first jiao
Degree threshold value is more than the second angle threshold value.
The control system also includes：Weight sensor, is arranged on co-driver seat of automobile lower section, for detecting in automobile
Whether there is passenger on assistant driver seat, when passenger is detected the presence of, be input into occupied signal, multiply when detecting not existing
When objective, it is input into without passenger signals.
The control system also includes：Wireless transceiver, is arranged on car body, with the digital signal processor 5
Connection, horizontal range and copilot station passenger trunk and the angle of leg for that will receive are wirelessly sent to automobile institute
On the internal network of unit.
The air bag mechanism 1 includes air bag main body, gas generator and solid fuel storage tank, the air bag main body and institute
The connection of solid fuel storage tank is stated, the gas generator is connected with the solid fuel storage tank, for lighting the solid-state
Fuel in fuel storage tank is producing gas to be filled with the air bag main body.
The impact strength sensor 2 is located in the instrument board of automobile, the rate of acceleration change for detecting automobile.
The ultrasonic sensor 3 is located on automobile instrument panel, including ultrasound wave emitter, ultrasonic receiver and micro-control
Device processed, the microcontroller is connected respectively with the ultrasound wave emitter and the ultrasonic receiver, the ultrasonic wave transmitting
Machine launches ultrasonic wave to copilot station passenger trunk, and it is anti-that the ultrasonic receiver receives copilot station passenger's trunk
The ultrasonic wave penetrated, reception of the microcontroller according to the launch time, the ultrasonic receiver of the ultrasound wave emitter
Time and ultrasonic propagation velocity calculate horizontal range of the copilot station passenger trunk apart from instrument board, and the ultrasonic wave is passed
Speed is broadcast for 340 metre per second (m/s)s.
As shown in Fig. 2 the passenger attitude testing agency 4 includes that high-definition camera 41, gray proces device 42, passenger are recognized
Device 43 and gesture recognizer 44.
The high-definition camera 41 is arranged on the A posts top of driver chair of automobile side, for multiplying to copilot station
Visitor is shot to obtain high definition passenger image, and the resolution ratio of the high definition passenger image is 1920 × 1080.
The gray proces device 42 is connected with the high-definition camera 41, for performing gray scale to the high definition passenger image
Change is processed, to obtain gray scale passenger image.
Passenger's identifier 43 is connected respectively with the gray proces device 42 and the static memory, by the gray scale
All pixels group of the gray value between the human body gray scale upper limit threshold and the human body gray scale lower threshold in passenger image
Adult body pattern.
The gesture recognizer 44 is connected with passenger's identifier 43, by trunk portion and people in the human body pattern
The angle of body leg is identified and the angle as copilot station passenger trunk and leg is exported.
The digital signal processor 5 and the gas generator, the weight sensor, the static memory, institute
State impact strength sensor 2, the ultrasonic sensor 3 and the gesture recognizer 44 to connect respectively, multiply when someone is received
Sit signal and rate of acceleration change and be more than or equal to rate of acceleration change threshold value, into airbag deployment pattern, when receiving without passenger
Signal or rate of acceleration change are less than rate of acceleration change threshold value, into air bag take-back model.
Wherein, the digital signal processor 5 is in the airbag deployment pattern, when the horizontal range for receiving more than etc.
Angle in first distance threshold and copilot station passenger trunk and leg is more than or equal to the first angle threshold value
When, send high intensity to the gas generator and launch signal, when the horizontal range for receiving in first distance threshold and
The angle of between the second distance threshold value and copilot station passenger trunk and leg is in the first angle threshold value and institute
When stating between second angle threshold value, send low-intensity to the gas generator and launch signal, when the horizontal range for receiving is small
The second angle is less than or equal in the angle equal to the second distance threshold value and copilot station passenger trunk and leg
During threshold value, sent to the gas generator and suppress to launch signal；The gas generator according to receive, data signal at
The signal type that reason device 5 sends, the mode for controlling it to light the fuel in the solid fuel storage tank.
Wherein, the automobile copilot airbag control system based on diversiform data communication can also include display,
It is arranged on automobile instrument panel, is connected with the digital signal processor 5, for display horizontal range in real time, is additionally operable in real time
Display copilot station passenger trunk and the angle of leg；And alternatively, the gas generator is receiving high intensity
When launching signal, the whole fuel in the solid fuel storage tank are lighted；The gas generator is receiving low-intensity exhibition
During ON signal, the half fuel in the solid fuel storage tank is lighted；The gas generator is receiving suppression expansion letter
Number when, light a quarter fuel in the solid fuel storage tank.
In addition, gas generator is also known as aerator, when igniting igniting agent for igniter, gas is produced to airbag aeration,
Make air bag swelling.Gas generator special bolt nut is fixed on air-bag support, can only be carried out with specific purpose tool during assembling
Assembling.Gas generator is made up of upper lid, lower cover, aerating agent and metal screen.There are several air-filled pores on upper lid, air-filled pore has
Two kinds of oblong aperture and circular hole.There is mounting hole on lower lid, so that gas generator is installed on air-bag support.Upper lid is used with lower cover
Cold-press process dresses up one, the built-in aerating agent of housing, filter screen and point device.Metal screen is placed in the inner surface of gas generator,
It is used to filter the slag particle after aerating agent and igniter burning.
Majority of gas generator is all to produce nitrogen using thermal effect reaction and be filled with air bag.Igniting agent is ignited in igniter
Moment, igniting agent can produce amount of heat, and sodium azide is heated the release nitrogen that decompose immediately, and is filled with air bag from air-filled pore.
In addition, it is noted that air bag is supplementary security system in air bag use, need to coordinate with safety belt make
With.The original intention of design safety air bag is exactly the safety of the auxiliary protection driver in the presence of safety belt, and everybody tends to
Air bag and safety belt are separated to see, it is believed that have air bag, the effect of safety belt is just little, therefore occurs as soon as
When a frontal collision occurs, the situation for not having wear safety belt and being hindered by air bag.Due to the aeration speed of air bag
Very fast, the impulsive force for inflating moment is also very big, if not wear safety belt, driver will be too early due to huge inertia
Rush at the air bag of underfill gas, at this moment the accident in accident will occur, air bag has played negative effect on the contrary.Cause
This, when driving and taking the automobile equipped with frontal airbag, must fasten one's safety belt, in the event of head-on crash, peace
Full band can just be adequately protected plus the duplicate protection of air bag and can just be not fully exerted, meanwhile, when automobile is equipped with preceding
During row's passenger airbag, children can't be allowed to be sitting in front-seat or dispose children's seat in this position, if can with manual-lock this
The air bag of position, then should close the air bag of this position in the scabies of children's ride-on.Because the outburst meeting of air bag
Children are caused with injury to a certain extent.Thus see, if air bag is used safely, can also bring the person to passenger
Safety problem.
Using the automobile copilot airbag control system communicated based on diversiform data of the invention, in the prior art
Lack the problem of control airbag deployment mode, using Supersonic and image acquisition and processing technology, realize obtaining the passenger side
Position passenger's trunk is sailed apart from the horizontal range and copilot station passenger trunk of instrument board and the angle of leg, is based on
The above-mentioned horizontal range airbag deployment mode different with angle formulation, further ensures passenger's peace of copilot station
Entirely.
Although it is understood that the present invention is disclosed as above with preferred embodiment, but above-described embodiment and being not used to
Limit the present invention.For any those of ordinary skill in the art, in the case where technical solution of the present invention ambit is not departed from,
Many possible variations and modification are all made to technical solution of the present invention using the technology contents of the disclosure above, or is revised as
With the Equivalent embodiments of change.Therefore, every content without departing from technical solution of the present invention, according to technical spirit pair of the invention
Any simple modification, equivalent variation and modification made for any of the above embodiments, still fall within the scope of technical solution of the present invention protection
It is interior.
Claims (1)
1. it is a kind of based on diversiform data communication automobile copilot airbag control system, the control system include air bag machine
Structure, impact strength sensor, ultrasonic sensor, passenger attitude testing agency and digital signal processor, the impact strength
Sensor is used to detect the rate of acceleration change of automobile, and the ultrasonic sensor is used to detect copilot station passenger's trunk
Apart from the horizontal range of instrument board, the passenger attitude testing agency is used to detect copilot station passenger trunk with leg
Angle, the digital signal processor and the air bag mechanism, the impact strength sensor, the ultrasonic sensor and institute
State passenger attitude testing agency to connect respectively, based on the impact strength sensor, the ultrasonic sensor and the passenger
The testing result of attitude detection mechanism determines that the air bag main body of the air bag mechanism launches strategy；
Characterized in that, the control system also includes：
Stand-by power supply, when collision scenario causes automobile storage battery and automobile current generator all to be disconnected with the control system,
For each equipment in the control system provides power supply；
Static memory, for prestore rate of acceleration change threshold value, the first distance threshold, second distance threshold value, first jiao
Degree threshold value and second angle threshold value, are additionally operable to prestore human body gray scale upper limit threshold and human body gray scale lower threshold, the people
Body gray scale upper limit threshold and the human body gray scale lower threshold are used for the human body and background separation in image, and the acceleration becomes
Rate threshold value, first distance threshold, the second distance threshold value, the first angle threshold value, the second angle threshold value,
The human body gray scale upper limit threshold and human body gray scale lower threshold are pre-filled with when all being dispatched from the factory for the control system by manufacturer
Parameter, first distance threshold be more than the second distance threshold value, the first angle threshold value be more than the second angle
Threshold value；
Weight sensor, is arranged on co-driver seat of automobile lower section, multiplies for detecting to whether there is on co-driver seat of automobile
Visitor, when passenger is detected the presence of, is input into occupied signal, when detecting in the absence of passenger, is input into without passenger signals；
Wireless transceiver, is arranged on car body, is connected with the digital signal processor, for the level that will receive away from
It is wirelessly sent on the internal network of automobile unit one belongs to from the angle with copilot station passenger trunk and leg；
The air bag mechanism includes air bag main body, gas generator and solid fuel storage tank, and the air bag main body is solid with described
State fuel storage tank is connected, and the gas generator is connected with the solid fuel storage tank, for lighting the solid fuel
Fuel in storage tank is producing gas to be filled with the air bag main body；
The impact strength sensor is located in the instrument board of automobile, the rate of acceleration change for detecting automobile；
The ultrasonic sensor is located on automobile instrument panel, including ultrasound wave emitter, ultrasonic receiver and microcontroller,
The microcontroller is connected respectively with the ultrasound wave emitter and the ultrasonic receiver, and the ultrasound wave emitter is to pair
Steering position passenger trunk launches ultrasonic wave, and the ultrasonic receiver receives the super of copilot station passenger trunk reflection
Sound wave, the microcontroller according to the launch time of the ultrasound wave emitter, the reception time of the ultrasonic receiver and
Ultrasonic propagation velocity calculates horizontal range of the copilot station passenger trunk apart from instrument board, the ultrasonic propagation velocity
It is 340 metre per second (m/s)s；
The passenger attitude testing agency includes high-definition camera, gray proces device, passenger's identifier and gesture recognizer；It is described
High-definition camera is arranged on the A posts top of driver chair of automobile side, for being shot to obtain to copilot station passenger
High definition passenger image is obtained, the resolution ratio of the high definition passenger image is 1920 × 1080；The gray proces device and the high definition
Camera is connected, for performing gray processing treatment to the high definition passenger image, to obtain gray scale passenger image；The passenger knows
Other device is connected respectively with the gray proces device and the static memory, by gray value in the gray scale passenger image described
All pixels composition human body pattern between human body gray scale upper limit threshold and the human body gray scale lower threshold；The gesture recognition
Device is connected with passenger's identifier, the angle of trunk portion in the human body pattern and human leg is identified and as
Copilot station passenger trunk is exported with the angle of leg；
The digital signal processor and the gas generator, the weight sensor, the static memory, the collision
Intensity sensor, the ultrasonic sensor and the gesture recognizer are connected respectively, when receive occupied signal and add
Percentage speed variation is more than or equal to rate of acceleration change threshold value, into airbag deployment pattern, when receiving without passenger signals or acceleration
Degree rate of change is less than rate of acceleration change threshold value, into air bag take-back model；
Wherein, the digital signal processor is in the airbag deployment pattern, when the horizontal range for receiving is more than or equal to institute
When stating the first distance threshold and copilot station passenger trunk and being more than or equal to the first angle threshold value with the angle of leg, to
The gas generator sends high intensity and launches signal, when the horizontal range for receiving is in first distance threshold and described the
The angle of between two distance thresholds and copilot station passenger trunk and leg is in the first angle threshold value and described second
When between angle threshold, send low-intensity to the gas generator and launch signal, when the horizontal range for receiving is less than or equal to
When the angle of the second distance threshold value and copilot station passenger trunk and leg is less than or equal to the second angle threshold value,
Sent to the gas generator and suppress to launch signal；
Wherein, the signal type that the gas generator sends according to receive, digital signal processor, controls it to light institute
State the mode of the fuel in solid fuel storage tank；
Display, is arranged on automobile instrument panel, is connected with the digital signal processor, for display horizontal range in real time,
It is additionally operable to show in real time the angle of copilot station passenger trunk and leg；
The gas generator lights the whole combustions in the solid fuel storage tank when high intensity expansion signal is received
Material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510646210.2A CN105172735B (en) | 2015-05-15 | 2015-05-15 | Automobile copilot airbag control system based on diversiform data communication |
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| CN201510250257.7A CN104786976B (en) | 2015-05-15 | 2015-05-15 | Based on the automobile copilot airbag control system of diversiform data communication |
| CN201510646210.2A CN105172735B (en) | 2015-05-15 | 2015-05-15 | Automobile copilot airbag control system based on diversiform data communication |
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| CN105172735A CN105172735A (en) | 2015-12-23 |
| CN105172735B true CN105172735B (en) | 2017-05-31 |
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| CN201510646210.2A Expired - Fee Related CN105172735B (en) | 2015-05-15 | 2015-05-15 | Automobile copilot airbag control system based on diversiform data communication |
| CN201510531731.3A Active CN105128804B (en) | 2015-05-15 | 2015-05-15 | Automobile copilot airbag control system based on diversiform data communication |
| CN201510250257.7A Expired - Fee Related CN104786976B (en) | 2015-05-15 | 2015-05-15 | Based on the automobile copilot airbag control system of diversiform data communication |
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| CN201510250257.7A Expired - Fee Related CN104786976B (en) | 2015-05-15 | 2015-05-15 | Based on the automobile copilot airbag control system of diversiform data communication |
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Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9604588B1 (en) * | 2015-11-25 | 2017-03-28 | Ford Global Technologies, Llc | Rear row knee bolster deployment control |
| US9744929B2 (en) * | 2015-11-25 | 2017-08-29 | Ford Global Technologies, Llc | Front passenger knee bolster deployment control |
| CN106004756A (en) * | 2016-06-21 | 2016-10-12 | 肇庆高新区凯盈顺汽车设计有限公司 | Air bag control system of automobile |
| CN106314342A (en) * | 2016-08-25 | 2017-01-11 | 宁波鑫星汽车部件有限公司 | Automobile passenger seat airbag control system |
| DE102016223961A1 (en) * | 2016-12-01 | 2018-06-07 | Robert Bosch Gmbh | Method and triggering circuit for triggering an arranged in a steering wheel of a motor vehicle airbags |
| US10814817B2 (en) | 2017-06-15 | 2020-10-27 | Ford Global Technologies, Llc | Occupant position detection |
| CN107727414A (en) * | 2017-11-13 | 2018-02-23 | 佛山鑫进科技有限公司 | A kind of car crass Strength co-mputation machine detecting device |
| DE102018112011A1 (en) * | 2018-05-18 | 2019-11-21 | Trw Airbag Systems Gmbh | FUEL CAGE FOR A PIPE GAS GENERATOR, FUEL BODY ELEMENT FOR A PIPE GAS GENERATOR, PIPE GAS GENERATOR FOR A GASSACK MODULE, GAS TANK MODULE, VEHICLE SAFETY SYSTEM, METHOD FOR OPERATING AND PRODUCING A PIPE GAS GENERATOR |
| CN109086508B (en) * | 2018-07-24 | 2022-05-17 | 江苏大学 | Threshold value dynamic matching method for automobile emergency call system |
| CN111347993A (en) * | 2018-12-21 | 2020-06-30 | 富顶精密组件（深圳）有限公司 | Driving safety auxiliary system and detection method |
| JP7235615B2 (en) * | 2019-07-22 | 2023-03-08 | 株式会社Subaru | passenger protection device |
| CN112590692A (en) * | 2020-11-03 | 2021-04-02 | 泰州镭昇光电科技有限公司 | Self-adaptive safety facility multiplexing system and method |
| CN113752975A (en) * | 2021-08-30 | 2021-12-07 | 浙江吉利控股集团有限公司 | Copilot safety airbag assembly, control method and vehicle |
| CN113879243A (en) * | 2021-10-09 | 2022-01-04 | 岚图汽车科技有限公司 | Vehicle airbag control method, storage medium, control device, and vehicle |
| CN113815557A (en) * | 2021-10-25 | 2021-12-21 | 中国第一汽车股份有限公司 | Knee airbag detonation system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0357225B1 (en) * | 1988-07-29 | 1993-12-15 | Mazda Motor Corporation | Air bag system for automobile |
| DE10257996A1 (en) * | 2002-12-12 | 2004-07-01 | Robert Bosch Gmbh | Determination of safety seat belt operation in road vehicle, using camera and sensor to determine position of individual, to provide optimum action of air bag triggering |
| US20050179239A1 (en) * | 2004-02-13 | 2005-08-18 | Farmer Michael E. | Imaging sensor placement in an airbag deployment system |
| KR100630842B1 (en) * | 2005-06-08 | 2006-10-02 | 주식회사 현대오토넷 | Passenger attitude discrimination system and the method which use stereo video junction in vehicle |
| JP5942902B2 (en) * | 2013-03-12 | 2016-06-29 | 株式会社デンソー | Airbag device |
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| Publication number | Publication date |
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| CN105172735A (en) | 2015-12-23 |
| CN105128804A (en) | 2015-12-09 |
| CN104786976B (en) | 2016-01-06 |
| CN105128804B (en) | 2016-09-28 |
| CN104786976A (en) | 2015-07-22 |
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