CN106671921B - The collision checking method and device of automobile - Google Patents
The collision checking method and device of automobile Download PDFInfo
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- CN106671921B CN106671921B CN201510761177.8A CN201510761177A CN106671921B CN 106671921 B CN106671921 B CN 106671921B CN 201510761177 A CN201510761177 A CN 201510761177A CN 106671921 B CN106671921 B CN 106671921B
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 230000001133 acceleration Effects 0.000 claims abstract description 124
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 230000004044 response Effects 0.000 claims abstract description 35
- 238000012544 monitoring process Methods 0.000 claims abstract description 11
- 238000011897 real-time detection Methods 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims 1
- 206010039203 Road traffic accident Diseases 0.000 description 5
- 230000006378 damage Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 238000004422 calculation algorithm Methods 0.000 description 2
- 239000002775 capsule Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000005259 measurement Methods 0.000 description 1
- 238000013160 medical therapy Methods 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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
- B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
- B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/01204—Actuation parameters of safety arrangents
- B60R2021/01211—Expansion of air bags
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- Mechanical Engineering (AREA)
- Emergency Alarm Devices (AREA)
- Air Bags (AREA)
Abstract
A kind of collision checking method and device of automobile, the collision checking method include: step A, and whether the air bag of automobile described in real-time monitoring pops, and the acceleration value of the vehicle-mounted acceleration transducer of automobile described in real-time detection；Whether step B pops according to the air bag of the automobile and judges the crash severity of the automobile with the acceleration value of the automobile；Step C triggers response operation corresponding with the crash severity according to different crash severities.The corresponding operating includes triggering emergency assistance services and is chosen whether to trigger common rescue service by user.The scheme application limitation of the embodiment of the present invention is smaller, can cover the detection of a variety of collision situations of automobile, and high reliablity can also make rescue service specific aim with higher, in addition, judging that practical application meaning is preferable to car crass degree.
Description
Technical field
The present invention relates to roadside assistance field, in particular to the collision checking method and device of a kind of automobile.
Background technique
With the continuous improvement of living standards, automobile quantity is continuously increased, and at the same time, road conditions also become more and more multiple
It is miscellaneous.The quantity that traffic accident occurs for automobile steeply rises, especially when the traffic accident for jeopardizing personal safety, such as collide,
Rollover etc., passengers inside the car often lose self-saving ability because of injury, and imposing rescue mission not in time makes party lose best rescue
Time causes serious consequence.It is asked in addition, also becoming one kind by the public transport congestion that vehicle failure causes and cannot be neglected society
Topic.
Electronic security(ELSEC) air bag (Electronic Control of Safety Airbag), abbreviation air bag is automobile
A kind of middle passively safety protective device, is usually used cooperatively with automobile safety seat belt, can provide for passenger effectively
Anti-bumping protection.In the prior art, using SDM, (Sensing Diagnostics Module is passed the collision detection majority of automobile
Sense diagnostic module) judge whether the air bag of automobile pops to determine whether automobile collides, the method only sends out automobile
The case where raw severe crash causes air bag to pop, the limitation of application is larger.There is also one kind to be based on three in the prior art
The car crass detection method of axle acceleration sensor carries out operation by certain algorithm to the pickup value detected,
By the way that the resulting value of operation is compared to judge whether automobile collides with preset threshold value, but it is described for judging vapour
The algorithm practical application meaning whether vehicle collides is poor.
Therefore, the application limitation of the car crass detection method of the prior art is larger and practical application meaning is poor.
Summary of the invention
Present invention solves the technical problem that be the car crass detection method of the prior art application limitation it is larger and real
The poor problem of border application value.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of collision checking method of automobile, comprising:
Whether the air bag of step A, automobile described in real-time monitoring pop, and the vehicle-mounted acceleration of automobile described in real-time detection
Spend the acceleration value of sensor；
Step B judges the automobile with the acceleration value of the automobile according to whether the air bag of the automobile pops
Crash severity；
Step C triggers response operation corresponding with the crash severity according to different crash severities.
Optionally, the step B includes: step B1, if the air bag of the automobile pops, determines that the automobile occurs
Severe crash.
Optionally, correspond to the automobile and severe crash occurs, the response operation includes automatic request rescue service.
Optionally, the step B further include:
Step B2, if the air bag of the automobile does not pop, according to the vehicle-mounted acceleration transducer detected
Acceleration value calculates crash severity quantized value；
It is light to determine that the automobile occurs if the crash severity quantized value is more than or equal to preset threshold value by step B3
Micro- collision；
Step B4 determines that the automobile does not collide if the crash severity quantized value is less than the threshold value.
Optionally, the step B4 further include: if the crash severity quantized value is less than the threshold value, further sentence
The automobile that breaks whether there is error code；If it exists, the response operation includes showing the error code.
Optionally, if the step C includes: that the automobile does not collide, and there are the error code, the then responses
Operation includes: to be chosen whether to trigger common rescue service by user.
Optionally, correspond to the automobile and slight impact occurs, the response operation includes reminding whether user will request
Rescue service.
Optionally, it does not collide corresponding to the automobile, and the automobile storage, in error code, the response operation includes
Remind whether user will request rescue service.
Optionally, the vehicle-mounted acceleration transducer is 3-axis acceleration sensor, and the step B2 includes:
Step B21 acquires adding for the x-axis, y-axis and z-axis of the primary 3-axis acceleration sensor at interval of the period 1
Velocity amplitude；
Step B22 calculates the acceleration value of the x-axis, y-axis and z-axis of the primary automobile second at interval of the period 1
Average value in period, is denoted as respectivelyWithThe second round is more than or equal to the period 1；
Step B23 determines the acceleration limits value of the x-axis, y-axis and z-axis of the automobile, is denoted as respectivelyWith
Step B24 calculates institute according to the acceleration limits value and acceleration average value of the x-axis, y-axis and z-axis of the automobile
State the Severity index of automobile；
Step B25, the collision for calculating the automobile according to the Severity index of automobile described in the period 3 are tight
Weight degree quantized value, the period 3 are greater than the period 1.
Optionally, the step B24 includes: according to formulaCalculate the serious of the automobile
Scale evaluation index.
Optionally, the step B25 includes: by the Severity index of the automobile in the period 3
Crash severity quantized value of the maximum value as the automobile.
Optionally, the step B25 includes:
The average value of the Severity index of the automobile in the period 3 is calculated as average serious journey
Spend assessment index；
The maximum value for calculating the mean severity assessment index in the period 3 is tight as the collision of the automobile
Weight degree quantized value.
Optionally, after executing the step C, the collision checking method further include: step D records the automobile
Fault message.
In order to solve the above technical problems, the embodiment of the present invention also provides a kind of collision detecting device of automobile, comprising:
Safety detection unit, whether the air bag suitable for automobile described in real-time monitoring pops, and vapour described in real-time detection
The acceleration value of the vehicle-mounted acceleration transducer of vehicle；
Collision detection processing unit couples the safety detection unit, suitable for according to the air bag of the automobile whether
It pops and judges the crash severity of the automobile with the acceleration value of the automobile；
Trigger unit is operated, the collision detection processing unit is coupled, suitable for according to different crash severities, triggering
Response operation corresponding with the crash severity.
Optionally, the collision detection processing unit includes: the first judgement subelement, if the air bag of the automobile is quick-fried
It opens, described first determines that subelement determines that severe crash occurs for the automobile.
Optionally, correspond to the automobile and severe crash occurs, the response operation includes automatic request rescue service.
Optionally, the collision detection processing unit further include:
Computation subunit, if the air bag of the automobile does not pop, the computation subunit is according to what is detected
The acceleration value of automobile calculates crash severity quantized value；
Second determines subelement, if the crash severity quantized value is more than or equal to preset threshold value, determines the vapour
Slight impact occurs for vehicle；
Third determines subelement, if the crash severity quantized value is less than the threshold value, determines that the automobile is not sent out
Raw collision.
Optionally, if the crash severity quantized value is less than the threshold value, the third determines that subelement is further
It is read from electronic controller and judges the automobile with the presence or absence of error code；If it exists, then the operation trigger unit triggering event
Barrier code display unit shows the error code.
Optionally, if the automobile does not collide, and there are error code, then the response operation includes: to be selected by user
It selects and whether triggers common rescue service.
Optionally, correspond to the automobile and slight impact occurs, the response operation includes reminding whether user will request
Rescue service.
Optionally, it does not collide corresponding to the automobile, and the automobile storage, in error code, the response operation includes
Remind whether user will request rescue service.
Optionally, the vehicle-mounted acceleration transducer is 3-axis acceleration sensor, and the computation subunit includes:
Acquisition module, suitable for acquiring the x-axis, y-axis and z-axis of the primary 3-axis acceleration sensor at interval of the period 1
Acceleration value；
Mean value calculation module is suitable for calculating adding for the x-axis, y-axis and z-axis of the primary automobile at interval of the period 1
Average value of the velocity amplitude within second round, is denoted as respectivelyWithThe second round is set more than or equal to described
Period 1；
Acceleration limit value determining module is adapted to determine that the acceleration limits value of the x-axis, y-axis and z-axis of the automobile, point
It is not denoted asWith
Severity index computing module according to the acceleration limits value of the x-axis, y-axis and z-axis of the automobile and adds
Speed average calculates the Severity index of the automobile；
Crash severity quantized value computing module, according to the Severity index meter of automobile described in the period 3
The period 3 is arranged greater than the period 1 in the crash severity quantized value for calculating the automobile.
Optionally, the Severity index computing module is suitable for according to formulaMeter
Calculate the Severity index of the automobile.
Optionally, the crash severity quantized value computing module is by the serious of the automobile in the period 3
Crash severity quantized value of the maximum value of scale evaluation index as the automobile.
Optionally, the crash severity quantized value computing module calculates the crash severity in the following way
Quantized value:
The average value of the Severity index of the automobile in the period 3 is calculated as average serious journey
Spend assessment index；
The maximum value for calculating the mean severity assessment index in the period 3 is tight as the collision of the automobile
Weight degree quantized value.
Optionally, the collision detecting device further includes fault message recording unit, suitable for recording the failure of the automobile
Information.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
In the scheme of the embodiment of the present invention, the collision checking method of automobile includes: the substitute of automobile described in real-time monitoring
Whether capsule pops, and the acceleration value of the vehicle-mounted acceleration transducer of automobile described in real-time detection；According to the safety of the automobile
Whether air bag, which pops, judges the crash severity of the automobile with the acceleration value of the automobile；It is serious according to different collisions
Degree triggers response operation corresponding with the crash severity.The scheme of the embodiment of the present invention passes through simultaneously to automobile
Whether air bag pops and the acceleration value of automobile is detected, and can make dual judgement to the collision situation of automobile；Vapour
When vehicle collides and air bag pops, then more serious traffic accident has occurred；When automobile collides but substitute
When capsule does not pop, only can not effectively it be judged by air bag, at this time the collision using the acceleration value of automobile to automobile
Severity is judged, to targetedly trigger response operation corresponding with the crash severity.The present invention is real
The scheme application limitation for applying example is smaller, can cover the detection to a variety of collision situations of automobile, high reliablity.
Further, in the scheme of the embodiment of the present invention, if the air bag of automobile pops, determine that automobile generation is seriously touched
It hits, automobile triggers emergency assistance services；If the air bag of automobile does not pop, and crash severity quantized value is more than or equal in advance
If threshold value, determine automobile occur slight impact, chosen whether to trigger common rescue service by user；If the air bag of automobile
Do not pop, and crash severity quantized value is less than the threshold value, determine that automobile does not collide, error code if it exists, then by
User chooses whether to trigger common rescue service according to error code.The scheme of the embodiment of the present invention is according to judged automobile
Crash severity accurately triggers corresponding roadside assistance service, makes rescue service specific aim with higher.
Further, in the judgement to car crass severity, the base of the scheme of the embodiment of the present invention in the prior art
The acceleration limits value of the x-axis, y-axis and z-axis of the automobile is introduced on plinth；At interval of the period 1, according to institute in second round
The Severity that the acceleration average value and acceleration limits value for stating the x-axis, y-axis and z-axis of automobile calculate the automobile refers to
Number, and quantified according to the crash severity that the Severity index of automobile described in the period 3 calculates the automobile
Value.Value adds the acceleration limits value of the x-axis, y-axis and z-axis of the automobile in what user in the reasonable scope can bear respectively
Velocity magnitude, the introducing of acceleration limits value can more preferable simulation practical situations, more to the judgement of car crass degree
It is accurate to add, and application value is preferable.
Detailed description of the invention
Fig. 1 is the flow chart of the collision checking method embodiment of automobile of the present invention；
Fig. 2 is the flow chart of another embodiment of collision checking method of automobile of the present invention；
Fig. 3 is the method flow diagram that the embodiment of the present invention calculates crash severity quantized value；
Fig. 4 is the structural schematic diagram of the collision detecting device embodiment of automobile of the present invention.
Specific embodiment
As described in the background section, the application limitation of the car crass detection method of the prior art is larger and practical application is anticipated
The poor problem of justice.
Present inventor studies the collision checking method of the automobile of the prior art.In the prior art, vapour
The collision detection majority of vehicle determines whether automobile collides using the judgement whether air bag to automobile pops, this sentences
Disconnected method is only capable of detecting automobile generation major accident, has biggish limitation.There is also a kind of bases in the prior art
In the car crass detection method of 3-axis acceleration sensor, whether the acceleration value by detecting automobile is more than threshold decision vapour
Whether vehicle collides.This detection method acquires three axis by the 3-axis acceleration sensor of automobile at predetermined time intervals and adds
Velocity amplitude；The current 3-axis acceleration value of automobile is read, to the pre-determined number before the current 3-axis acceleration value of the automobile
3-axis acceleration value carries out arithmetic average processing, calculates 3-axis acceleration value being averaged in each axis of the pre-determined number
Value；The acceleration values of three current axis of the automobile and the difference of the average value of corresponding each axis are calculated, according to the difference
Whether collided with automobile described in threshold decision.Although this detection method can be by way of calculating acceleration average value
Abnormal burst bounce bring when solution sensor sample influences, but not from the point of view of interior user in reality
Ability to bear and be hurt degree of the interior user to acceleration in the application of border；Assuming that before the interior user to fasten one's safety belt
Be afterwards x-axis, left and right be y-axis, be up and down z-axis；In most cases, receiving energy of the interior user to the acceleration in x-axis direction
Power is greater than y-axis and z-axis.Therefore, the car crass detection method practical application based on 3-axis acceleration sensor of the prior art
Meaning is poor.
Based on the studies above as a result, the present invention provides a kind of collision checking method of automobile, as shown in Figure 1, the automobile
Collision checking method the following steps are included:
Whether the air bag of step S101, automobile described in real-time monitoring pop, and automobile described in real-time detection is vehicle-mounted
The acceleration value of acceleration transducer.
Step S102 judges the vapour with the acceleration value of the automobile according to whether the air bag of the automobile pops
The crash severity of vehicle.
Step S103 triggers response operation corresponding with the crash severity according to different crash severities；
Response operation may include a variety of modes of operation, such as trigger rescue service appropriate, view when record automobile collides
Frequency or connection GPRS position to the automobile to collide etc..
Whether the scheme of the embodiment of the present invention by popping to the air bag of automobile and the acceleration value of automobile simultaneously
It is detected, dual judgement can be made to the collision situation of automobile；When automobile collides and air bag pops, then have occurred
More serious traffic accident；When automobile collides but air bag does not pop, can not only be had by air bag
Effect judgement, at this time judges the crash severity of automobile using the acceleration value of automobile, to targetedly trigger
Response operation corresponding with the crash severity.The scheme application limitation of the embodiment of the present invention is smaller, can cover vapour
The detection of a variety of collision situations of vehicle, high reliablity.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Fig. 2 is the flow chart of another embodiment of collision checking method of automobile of the present invention.
In the present embodiment, when ignition coil is ignited, the automobile is started to work, i.e. execution step S201 is described
Whether automobile real-time monitoring air bag pops, and detects the acceleration value of the automobile mounted acceleration transducer；And according to
Whether the air bag of the automobile, which pops, judges the crash severity of the automobile with the acceleration value of the automobile.Its
In, judge that the crash severity of the automobile may comprise steps of:
Step S202, judges whether the air bag of the automobile pops, if popping, thens follow the steps S203, determines institute
It states automobile and severe crash has occurred.
At this point, corresponding to the automobile occurs severe crash, the response of automobile triggering operates can be with
Include: step S204, requests rescue service automatically；Due in the case where severe crash occurs for automobile, it is considered that vehicle occupant
Member is in peril of one's life, and the automatic request rescue service may include directly dialing 120 or other public way rescue facilities reality
It sues and labours and helps.
Judgment step to the crash severity of the automobile can also include:
If judging, the air bag of the automobile does not pop, according to adding for the vehicle-mounted acceleration transducer detected
Velocity amplitude calculates crash severity quantized value, and executes step S205, judges whether the crash severity quantized value is big
In equal to preset threshold value.
If the result of judgment step S205 be it is yes, then follow the steps S206, determine that slight impact has occurred in the automobile；?
In this case, the automobile executes step S207, this case that slight impact is had occurred in the automobile taken or driven mentions
Wake up user, and specific alerting pattern can be realized by display screen or warning lamp, herein without specifically limited.
Step S2010 is executed after reminding user, user is waited to choose whether to trigger common rescue service；Conjunction can be generally set
The waiting time of reason, the trigger action of user is waited within the waiting time, user can touch by preset button
Start to make, not do herein specifically limited；In the case where slight impact occurs for automobile, automobile has been likely to occur failure, Yong Huke
Preset public rescue service phone or the common rescue service of helpdesk's phone are such as dialed with selection.
If the result that step S205 judges be it is no, i.e., the described crash severity quantized value be less than the threshold value, then determine
The automobile does not collide, and executes step S208, further judges the automobile with the presence or absence of error code；If it exists, it holds
Row step S209 shows the error code and reminds user, and user can judge that automobile is sent out by shown failure digital content
The specific location and failure cause of raw failure；Then, S2010 is equally executed, within the reasonable waiting time, waits user's selection
Whether common rescue service is triggered；In the case where automobile does not collide, the failure cause of automobile is locked by error code, with
For automobile flat tire, user, which can choose, such as dials the common rescue service of phone at preset flowing tire patching.
The error code or user do not trigger common rescue service if it does not exist, then follow the steps S201, and the automobile is real
When monitoring air bag whether pop, and detect the acceleration value of the automobile mounted acceleration transducer.
Step S2011 is executed after executing step S204 and step S2010, records the fault message of the automobile；If vapour
Severe crash has occurred in vehicle, records the relevant information of collision, such as the time to collide；It is slightly touched if automobile has occurred
It hits, records corresponding pickup value while recording collision accident；If automobile is to collide and there are error code, remember
Record fault time and error code.After completing to the record of fault message, the automobile exits the detection to collision.
In specific implementation, the fault message can be recorded and is transmitted to background server, also can record and inserted in one
(Plug and Play) equipment is used, in case reading.
In the scheme of the embodiment of the present invention, according to the crash severity of judged automobile, accurately triggering is corresponding
Roadside assistance service, make rescue service specific aim with higher.Help can be provided to the automobile in breaking down, to friendship
Personnel in interpreter's event carry out urgent medical therapy, reduce injures and deaths and injury, can also effectively improve traffic order, help
Relevant departments (such as traffic department, insurance department) more just processing traffic accident and subsequent relevant issues.
It should be noted that in the scheme of the embodiment of the present invention, when the air bag of the automobile does not pop, according to institute
After the acceleration value calculating crash severity quantized value for stating the vehicle-mounted acceleration transducer of automobile, the present embodiment can also be set
It sets the crash severity quantized value to be compared from different preset thresholds respectively, such as first threshold, second threshold, third
Threshold value (first threshold < second threshold < third threshold value) etc.；The crash severity of car crass severity will be showed
Quantized value is divided into more sections according to the different preset threshold, further judges the vapour further according to different sections
The crash severity of vehicle, the different response operations for subsequent processing and corresponding to the crash severity provide more thin
The data foundation of cause.
Fig. 3 is the method flow diagram that the embodiment of the present invention calculates crash severity quantized value.
In the present embodiment, the vehicle-mounted acceleration transducer can be 3-axis acceleration sensor, and the collision is serious
The calculation method of degree quantized value may include the step S301 to step S305 successively executed:
Step S301 acquires adding for the x-axis, y-axis and z-axis of the primary 3-axis acceleration sensor at interval of the period 1
Velocity amplitude, to guarantee in the time domain to the continuous acquisition of the acceleration value；Wherein, the period 1 is sample frequency
It is reciprocal；The present embodiment is by taking sample frequency 3kHz as an example, in specific implementation, can adjust accordingly according to actual needs.
Step S302 calculates the acceleration values of the x-axis, y-axis and z-axis of the primary automobile the at interval of the period 1
Average value in two cycles, is denoted as respectivelyWithIt can be using following formula to progressWithIt calculates:
In the present embodiment, the second round is more than or equal to the period 1, and the present embodiment is with second round
For 50ms, in specific implementation, it can adjust accordingly according to actual needs.
Step S303 determines the acceleration limits value of the x-axis, y-axis and z-axis of the automobile, is denoted as respectivelyWithAssuming that the front-rear direction of the interior user to fasten one's safety belt is x-axis, left and right directions is y-axis, up and down direction is z-axis；More
In number situation, interior user is greater than y-axis and z-axis, i.e., in a practical situation, vehicle to the ability to bear of the acceleration in x-axis direction
Ability to bear and be hurt degree difference of the interior user to out-of-alignment acceleration, therefore introduce the acceleration limits value.
Wherein, the acceleration limits valueWithFor empirical value, can be determined according to actual needs；Its
Value principle is, in the case that user fastens one's safety belt in the car, the acceleration of all directions is less than the described of corresponding direction
When acceleration limits value, it will not cause harm to the human body.In the present embodiment,G is
Gravity acceleration value.
Step S304 is calculated according to the acceleration limits value and acceleration average value of the x-axis, y-axis and z-axis of the automobile
The Severity index of the automobile, is denoted as ASI (t)；It can be according to formula
Calculate the Severity Index A SI (t) of the automobile.
Step S305, the collision for calculating the automobile according to the Severity index of automobile described in the period 3 are tight
Weight degree quantized value, and the period 3 is set greater than the period 1.
The present embodiment in two ways for, the calculating of the crash severity quantized value of the automobile is illustrated.
Method one, can be using the maximum value of the Severity index of the automobile in the period 3 as institute
State the crash severity quantized value of automobile.
Method two can calculate the average value conduct of the Severity index of the automobile in the period 3
Mean severity assessment index；It calculates described in the maximum value conduct of the mean severity assessment index in the period 3
The crash severity quantized value of automobile；The crash severity quantized value of the automobile is calculated using following formula:
The average value that the method two calculates the Severity index of the automobile in the period 3 is made
For mean severity assessment index, data burr can be algorithmically effective filtered out, can be rejected as even in automobilism
The gross error that the acceleration so occurred increases, avoids judging by accident.
The present embodiment is 15ms with the period 3, can be adjusted accordingly according to actual needs, is not done herein specifically limited.
In the present embodiment, by ASI15Value indicates the crash severity quantized value of the automobile in 15ms.By ASI15With
Preset threshold value comparison carries out collision detection, and the threshold value is empirical value, and the present embodiment establishing criteria system takes the threshold value
Value is 1.8.
In the car crass extent of disease severity of the present embodiment, described in the present embodiment introduces on the basis of existing technology
The acceleration limits value of the x-axis, y-axis and z-axis of automobile；At interval of the period 1, according to the x-axis of automobile described in second round, y
The acceleration average value and acceleration limits value of axis and z-axis calculate the Severity index of the automobile, and according to third
The Severity index of the automobile calculates the crash severity quantized value of the automobile in period.The x of the automobile
The acceleration limits value acceleration magnitude that value can bear in user in the reasonable scope respectively of axis, y-axis and z-axis accelerates
Spend limits value introducing can more preferable simulation practical situations, car crass degree is accurately calculated, using meaning
It is adopted preferable.
In order to solve problems of the prior art described in background technology part, the embodiment of the present invention also provides one kind
The collision detecting device 40 of automobile, as shown in figure 4, the collision detecting device 40 of automobile may include:
Whether safety detection unit 41, the air bag suitable for automobile described in real-time monitoring pop, and described in real-time detection
The acceleration value of the vehicle-mounted acceleration transducer of automobile.
Collision detection processing unit 42, collision detection processing unit 42 are the core of the collision detecting device 40 of the automobile
The heart couples the safety detection unit 41, the acceleration whether to pop suitable for the air bag according to the automobile with the automobile
Angle value judges the crash severity of the automobile.
Trigger unit 43 is operated, the collision detection processing unit 42 is coupled, suitable for according to different crash severities,
Trigger response operation corresponding with the crash severity.
In specific implementation, the safety detection unit 41 can correspond to SDM and vehicle-mounted acceleration sensing in automobile
Whether device, the air bag that the SDM is suitable for automobile described in real-time monitoring pop, and the vehicle-mounted acceleration transducer is suitable for real-time
Detect the acceleration value of the automobile；But the present embodiment is without being limited thereto, and the safety detection unit 41 can also be examined using hardware
Mode of the measurement equipment in conjunction with software is realized.
The collision detection processing unit 42 may include: the first judgement subelement 421, if the air bag of the automobile
It pops, the first judgement subelement 421 determines that severe crash occurs for the automobile.It is seriously touched corresponding to automobile generation
It hits, the response operation includes automatic request rescue service.
The collision detection processing unit 42 can also include:
Computation subunit 422, if the air bag of the automobile does not pop, the computation subunit 422 is according to detecting
The automobile acceleration value calculate crash severity quantized value.
Second determines subelement 423, if the crash severity quantized value is more than or equal to preset threshold value, described in judgement
Slight impact occurs for automobile.
Third determines subelement 424, if the crash severity quantized value is less than the threshold value, determines the automobile not
It collides.
If the crash severity quantized value is less than the threshold value, the third determines subelement 424 further from electricity
Sub-controller (not shown go out) reads and judges the automobile with the presence or absence of error code；If it exists, then the operation trigger unit
43 triggering error code display units (not shown go out) the display error code.
If the automobile does not collide, and there are error code, then the response operation may include: to be by user's selection
The no common rescue service of triggering.
Slight impact occurs corresponding to the automobile, the response operation may include reminding whether user will request to rescue
Service.
It does not collide corresponding to the automobile, and the automobile storage, in error code, the response operation may include mentioning
Whether awake user will request rescue service.
The vehicle-mounted acceleration transducer can be 3-axis acceleration sensor, and the computation subunit 422 includes:
Acquisition module 4221, suitable for acquiring x-axis, the y-axis of the primary 3-axis acceleration sensor at interval of the period 1
With the acceleration value of z-axis.
Mean value calculation module 4222 is suitable for calculating the x-axis, y-axis and z-axis of the primary automobile at interval of the period 1
Average value of the acceleration value within second round, be denoted as respectivelyWithThe second round is more than or equal to described the
One period.
Acceleration limit value determining module 4223 is adapted to determine that the acceleration limitation of the x-axis, y-axis and z-axis of the automobile
Value, is denoted as respectivelyWith
Severity index computing module 4224, according to the acceleration limits value of the x-axis, y-axis and z-axis of the automobile
With acceleration average value, the Severity index of the automobile is calculated.
Crash severity quantized value computing module 4225 refers to according to the Severity of automobile described in the period 3
Number calculates the crash severity quantized value of the automobile, and the period 3 is arranged greater than the period 1.
The Severity index computing module 4224 can be according to formulaIt calculates
The Severity index of the automobile.
The crash severity quantized value computing module 4225 can be by the tight of the automobile in the period 3
Crash severity quantized value of the maximum value of weight scale evaluation index as the automobile.
The crash severity quantized value computing module 4225 can calculate the serious journey of collision in the following way
Metrization value:
The average value for calculating the Severity index of the automobile in the period 3 is commented as mean severity
Estimate index；The maximum value for calculating the mean severity assessment index in the period 3 is serious as the collision of the automobile
Degree quantized value.
The collision detecting device 40 of the automobile can also include fault message recording unit 44, suitable for recording the automobile
Fault message.
The more information of the collision detecting device 40 of automobile please refers to the collision checking method of automobile in above embodiments
Associated description, details are not described herein again.
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (20)
1. a kind of collision checking method of automobile characterized by comprising
Whether the air bag of step A, automobile described in real-time monitoring pop, and the vehicle-mounted acceleration of automobile described in real-time detection passes
The acceleration value of sensor；
Step B judges touching for the automobile with the acceleration value of the automobile according to whether the air bag of the automobile pops
Hit severity；
Step C triggers response operation corresponding with the crash severity according to different crash severities；
The step B includes:
Step B1 determines that severe crash occurs for the automobile if the air bag of the automobile pops；
Step B2, if the air bag of the automobile does not pop, according to the acceleration of the vehicle-mounted acceleration transducer detected
Angle value calculates crash severity quantized value；
Step B3 determines that the automobile generation is slightly touched if the crash severity quantized value is more than or equal to preset threshold value
It hits；
Step B4 determines that the automobile does not collide if the crash severity quantized value is less than the threshold value；
The vehicle-mounted acceleration transducer is 3-axis acceleration sensor, and the step B2 includes:
Step B21 acquires the acceleration of the x-axis, y-axis and z-axis of the primary 3-axis acceleration sensor at interval of the period 1
Value；
Step B22 calculates the acceleration value of the x-axis, y-axis and z-axis of the primary automobile in second round at interval of the period 1
Interior average value, is denoted as respectivelyWithThe second round is more than or equal to the period 1；
Step B23 determines the acceleration limits value of the x-axis, y-axis and z-axis of the automobile, is denoted as a respectivelyx、ayAnd az；
Step B24 calculates the vapour according to the acceleration limits value and acceleration average value of the x-axis, y-axis and z-axis of the automobile
The Severity index of vehicle；
Step B25 calculates the serious journey of collision of the automobile according to the Severity index of automobile described in the period 3
Metrization value, the period 3 are greater than the period 1.
2. collision checking method as described in claim 1, which is characterized in that correspond to the automobile and severe crash, institute occurs
Stating response operation includes automatic request rescue service.
3. collision checking method as described in claim 1, which is characterized in that the step B4 further include:
If the crash severity quantized value is less than the threshold value, further judge the automobile with the presence or absence of error code；If
In the presence of the response operation includes showing the error code.
4. collision checking method as claimed in claim 3, which is characterized in that the step C includes:
If the automobile does not collide, and there are the error code, then the response operation includes: to choose whether to touch by user
Send out rescue service common.
5. collision checking method as described in claim 1, which is characterized in that correspond to the automobile and slight impact, institute occurs
Stating response operation includes reminding whether user will request rescue service.
6. collision checking method as claimed in claim 3, which is characterized in that do not collide corresponding to the automobile, and institute
Automobile storage is stated in error code, the response operation includes reminding whether user will request rescue service.
7. collision checking method as described in claim 1, which is characterized in that the step B24 includes:
According to formulaCalculate the Severity index of the automobile.
8. collision checking method as described in claim 1, which is characterized in that the step B25 includes:
The maximum value of the Severity index of the automobile in the period 3 is tight as the collision of the automobile
Weight degree quantized value.
9. collision checking method as described in claim 1, which is characterized in that the step B25 includes:
The average value for calculating the Severity index of the automobile in the period 3 is commented as mean severity
Estimate index；
Calculate collision serious journey of the maximum value as the automobile of the mean severity assessment index in the period 3
Metrization value.
10. collision checking method as described in claim 1, which is characterized in that after executing the step C, the collision inspection
Survey method further include:
Step D records the fault message of the automobile.
11. a kind of collision detecting device of automobile characterized by comprising
Safety detection unit, whether the air bag suitable for automobile described in real-time monitoring pops, and automobile described in real-time detection
The acceleration value of vehicle-mounted acceleration transducer；
Whether collision detection processing unit couples the safety detection unit, suitable for being popped according to the air bag of the automobile
The crash severity of the automobile is judged with the acceleration value of the automobile；
Trigger unit is operated, the collision detection processing unit is coupled, suitable for according to different crash severities, triggering and institute
State the corresponding response operation of crash severity；
The collision detection processing unit includes:
First determines subelement, if the air bag of the automobile pops, described first determines that subelement determines the automobile hair
Raw severe crash；
Computation subunit, if the air bag of the automobile does not pop, the computation subunit is according to the automobile detected
Acceleration value calculate crash severity quantized value；
Second determines subelement, if the crash severity quantized value is more than or equal to preset threshold value, determines the automobile hair
Raw slight impact；
Third determines subelement, if the crash severity quantized value is less than the threshold value, determines that the automobile does not touch
It hits；
The vehicle-mounted acceleration transducer is 3-axis acceleration sensor, and the computation subunit includes:
Acquisition module, suitable for acquiring once adding for the x-axis, y-axis and z-axis of the 3-axis acceleration sensor at interval of the period 1
Velocity amplitude；
Mean value calculation module is suitable for calculating the acceleration of the x-axis, y-axis and z-axis of the primary automobile at interval of the period 1
It is worth the average value within second round, is denoted as respectivelyWithThe second round is set more than or equal to described first
Period；
Acceleration limit value determining module is adapted to determine that the acceleration limits value of the x-axis, y-axis and z-axis of the automobile, remembers respectively
Make ax、ayAnd az；
Severity index computing module, according to the acceleration limits value and acceleration of the x-axis, y-axis and z-axis of the automobile
Average value calculates the Severity index of the automobile；
Crash severity quantized value computing module calculates institute according to the Severity index of automobile described in the period 3
The period 3 is arranged greater than the period 1 in the crash severity quantized value for stating automobile.
12. collision detecting device as claimed in claim 11, which is characterized in that correspond to the automobile and severe crash occurs,
The response operation includes automatic request rescue service.
13. collision detecting device as claimed in claim 11, which is characterized in that further include:
If the crash severity quantized value is less than the threshold value, the third determines subelement further from electronic controller
It reads and judges the automobile with the presence or absence of error code；If it exists, then the operation trigger unit triggers error code display unit
Show the error code.
14. collision detecting device as claimed in claim 13, which is characterized in that if the automobile does not collide, and exist
Error code, then the response operation includes: to be chosen whether to trigger common rescue service by user.
15. collision detecting device as claimed in claim 11, which is characterized in that correspond to the automobile and slight impact occurs,
The response operation includes reminding whether user will request rescue service.
16. collision detecting device as claimed in claim 13, which is characterized in that it does not collide corresponding to the automobile, and
For the automobile storage in error code, the response operation includes reminding whether user will request rescue service.
17. collision detecting device as claimed in claim 11, which is characterized in that the Severity index computing module
Suitable for according to formulaCalculate the Severity index of the automobile.
18. collision detecting device as claimed in claim 11, which is characterized in that the crash severity quantized value calculates mould
Block is serious as the collision of the automobile using the maximum value of the Severity index of the automobile in the period 3
Degree quantized value.
19. collision detecting device as claimed in claim 11, which is characterized in that the crash severity quantized value calculates mould
Block calculates the crash severity quantized value in the following way:
The average value for calculating the Severity index of the automobile in the period 3 is commented as mean severity
Estimate index；
Calculate collision serious journey of the maximum value as the automobile of the mean severity assessment index in the period 3
Metrization value.
20. collision detecting device as claimed in claim 11, which is characterized in that further include fault message recording unit, be suitable for
Record the fault message of the automobile.
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| CN201510761177.8A CN106671921B (en) | 2015-11-10 | 2015-11-10 | The collision checking method and device of automobile |
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| CN201510761177.8A CN106671921B (en) | 2015-11-10 | 2015-11-10 | The collision checking method and device of automobile |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109254542A (en) * | 2017-07-13 | 2019-01-22 | 深圳寰球乐飞技术有限公司 | Response circuit, the switch controlling device of acceleration overload |
| CN111071192A (en) * | 2018-10-22 | 2020-04-28 | 上海博泰悦臻电子设备制造有限公司 | Vehicle, vehicle equipment and vehicle collision automatic processing method |
| CN110745093A (en) * | 2019-10-31 | 2020-02-04 | 重庆长安汽车股份有限公司 | Method and system for intelligently identifying vehicle collision event, storage medium and vehicle |
| CN111415437B (en) * | 2020-03-27 | 2022-05-03 | 大陆汽车电子（连云港）有限公司 | Collision event recording system and method |
| CN112327814A (en) * | 2020-11-23 | 2021-02-05 | 宝能(西安)汽车研究院有限公司 | Vehicle fault processing method and system |
| CN112918414A (en) * | 2021-03-22 | 2021-06-08 | 浙江合众新能源汽车有限公司 | Vehicle rescue control system and control method |
| CN113335311B (en) * | 2021-07-22 | 2022-09-23 | 中国第一汽车股份有限公司 | Vehicle collision detection method and device, vehicle and storage medium |
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