CN105588723A - Device and method for measuring ignition time period of automotive airbag system - Google Patents
Device and method for measuring ignition time period of automotive airbag system Download PDFInfo
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- CN105588723A CN105588723A CN201610127187.0A CN201610127187A CN105588723A CN 105588723 A CN105588723 A CN 105588723A CN 201610127187 A CN201610127187 A CN 201610127187A CN 105588723 A CN105588723 A CN 105588723A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
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Abstract
An embodiment of the invention discloses a device and a method for measuring an ignition time period of an automotive airbag system, wherein the device and the method belong to the field of measurement technology. The automotive airbag system comprises a power supply, a collision sensor, an airbag controller and an airbag. The device comprises a power supply, an oscilloscope, a first sensor, a second sensor and a third sensor. The collision sensor and the airbag are connected with the airbag controller through power lines. The oscilloscope is connected with the first sensor, an ignition signal transmission wire harness between the airbag controller and the airbag, the second sensor and the third sensor. The device and the method have advantages of effectively improving measurement precision and reducing testing cost for ignition time of the automotive airbag system and requirement for testing environment.
Description
Technical field
The present invention relates to field of measuring technique, in particular to a kind of measured automobiles safetyGas-bag system is ignited the device and method of time period.
Background technology
Along with social development, automobile becomes the walking-replacing tool of people's go off daily, along withThe dramatic growth of automobile quantity, auto vendor more and more focuses on the security of automobile itself, existingSome automobiles have all been equipped with air bag for protection device substantially, in the time that automobile bumpsWait, can protect occupant by air bag. And every money automobile is before listingAll will repeatedly test the performance of air bag system, prior art is mainly by electricityThe ignition signal that stream pincers induction safety air sac controller sends, and by data collecting instrument recordCollision moment, the moment that senses initial firing current judge from colliding sends ignition signalTime value. Ignite the whole process of inflation by high-speed camera record security air bag, more logicalCross analyze high-speed camera take picture measure the airbag inflated expansion process timeValue. In the implementation process of prior art, be at least faced with following problem: need to use priceExpensive high-speed camera, testing cost is high, needs professional laboratory or test site simultaneously,Make to test environment require high. Need each moment point of measuring not establish by sameThe standby disposable measurement that completes, asynchronism(-nization) axle, measuring result error is large.
Summary of the invention
It is a kind of for measured automobiles air bag system that the object of the embodiment of the present invention is to provideThe device and method of igniting the time period, is intended to effectively improve certainty of measurement, and reduces and test intoOriginally the requirement and to test environment.
First aspect, the one that the embodiment of the present invention provides for measured automobiles air bag isSystem is ignited the device of time period, and described automobile air-bag system comprises power supply, collision sensingDevice, safety air sac controller and air bag, described device comprises power supply, oscillograph,One sensor, the second sensor and the 3rd sensor, described crash sensor and described safetyAir bag is connected with described safety air sac controller by power line respectively, and described oscillograph connectsPoint between described first sensor, described safety air sac controller and described air bagFire signal transmssion line bundle, described the second sensor and described the 3rd sensor;
Wherein, in collision, occur the moment, described crash sensor is activated, and simultaneously described theThe voltage at one sensor two ends changes, and described the second sensor is located at described air bagThe surface of cover cap, described the 3rd sensor is located at the top of described air bag cover cap and to instituteThe height when distance of stating air bag cover cap equals described airbag inflated and completes, described inFirst sensor is for measuring the moment bumping, described safety air sac controller and described inIgnition signal transmission wire harness between air bag is used for measuring the moment of sending ignition signal,Described the second sensor starts the moment of inflation, the described the 3rd for measuring described air bagSensor is for measuring the moment that described airbag inflated completes, and described oscillograph is for rightIgniting between described first sensor, described safety air sac controller and described air bagThe voltage signal that signal transmssion line bundle, described the second sensor and described the 3rd sensor gatherThe variation moment records and calculates.
Preferably, described power supply comprises D.C. regulated power supply, described D.C. regulated power supply series connectionHave fuse and load resistance, described load resistance comprises the first resistance, the second resistance andThree resistance, described the first resistance is connected in described first sensor, and described the second resistance connectsIn described the second sensor, described the 3rd resistance is connected in described the 3rd sensor.
Preferably, described first sensor, described the second sensor and described the 3rd sensorFor voltage sensor, described first sensor, described the second sensor and described the 3rd sensingDevice shows and record for the voltage signal of generation is sent to described oscillograph.
Preferably, described power supply is connected to described safety air sac controller, described firstSensor, described the second sensor and described the 3rd sensor.
Preferably, described first sensor comprises the first shell fragment and the second shell fragment, described firstShell fragment and described the second shell fragment are connected in described power supply, in the time bumping, in described collisionSensor is activated, and described the first shell fragment and described the second shell fragment are in contact with one another simultaneously, described inThe first shell fragment is connected with described oscillograph with described the second shell fragment.
In the time of described not bumping, described the first shell fragment approaches with described the second shell fragment, phaseParallel, mutually insulated mutually, described the second shell fragment is fixation spring tab.
Preferably, described the second sensor comprises masking foil, and described masking foil is located at described peaceThe surface of full air bag cover cap, described masking foil two ends are connected with described oscillograph by power line.
Preferably, the minimum widith of described masking foil is 1 millimeter.
Preferably, described the 3rd sensor comprises the 3rd shell fragment and the 4th shell fragment, the described the 3rdWhen shell fragment equals described airbag inflated and completes to the distance of described air bag cover surfacesHeight, described the 4th shell fragment be located at described the 3rd shell fragment under, described the 4th shell fragmentClose to each other, parallel with described the 3rd shell fragment and insulation;
Described air bag contacts with described the 4th shell fragment in the time that inflation completes, so that describedFour shell fragments are contacted with described the 3rd shell fragment, described the 4th shell fragment and the 3rd shell fragment and described oscillographyDevice is connected.
Preferably, described the first shell fragment, described the second shell fragment, described the 3rd shell fragment and described inThe 4th shell fragment is metal clips, and smooth surface and conduction are good.
Preferably, the surface of described crash sensor is provided with acceleration transducer, described in addVelocity sensor is also connected with display, and described acceleration transducer is for detection of described collisionWhat the minimum acceleration needing when sensor is activated and different acceleration were corresponding sends igniting letterNumber needed time, described display is for showing described acceleration.
Second aspect, the one that the embodiment of the present invention provides for measured automobiles air bag isSystem is ignited the method for time period, is applied in device, and described automobile air-bag system comprisesPower supply, crash sensor, safety air sac controller and air bag, described device comprises electricitySource, oscillograph, first sensor, the second sensor and the 3rd sensor,
Wherein: the voltage between described first sensor two shell fragments is swashed at described crash sensorWhen living, change, in the time bumping, described crash sensor is activated, simultaneouslyDescribed the first shell fragment contacts with the second shell fragment, and described the first shell fragment and second plays bar-to-bar voltage letterNumber change, and the described voltage signal changing is sent to described oscillograph carries outShow and record;
When described safety air sac controller is received after the collision alarm of described crash sensor transmissionWill send ignition signal, described ignition signal by described safety air sac controller and described inIgnition signal transmission wire harness between air bag is sent to described oscillograph and shows and rememberRecord;
Described the second sensor is located at the surface of described air bag cover cap, when described substituteCapsule starting point is fought and is started to inflate while earning brokenly described air bag cover cap, and described masking foil simultaneouslyQuilt is earned disconnected, and described the second sensor both end voltage signal changes, and becomes describedThe voltage signal of changing is sent to described oscillograph and shows and record;
Described the 3rd sensor is located at the top of described air bag cover cap and is arrived described substituteThe height when distance of capsule equals described airbag inflated and completes, when described air bag fillsWhen gas completes, described the 3rd shell fragment of described the 3rd sensor contacts with described the 4th shell fragment,Voltage signal between described the 3rd shell fragment and described the 4th shell fragment changes, and by describedThe voltage signal of changing is sent to described oscillograph and shows and record.
A kind of measured automobiles air bag system that the embodiment of the present invention provides is ignited the time periodDevice and method, moment bumping by first sensor measurement, by described safetyIgniting letter is sent in ignition signal transmission wire harness measurement between air spring control and described air bagNumber moment, the moment that starts inflation by air bag described in the second sensor measurement, logicalSpend the moment that airbag inflated completes described in the 3rd sensor measurement, above-mentioned four moment are logicalCross oscillograph collection, show, record and calculate, and then measure safe automobile air bagThe time period that system is ignited, the present invention does not need to use expensive high-speed camera, hasEffect has reduced testing cost, does not need professional laboratory or test site simultaneously, effectively improvesCertainty of measurement, and reduced the requirement to test environment.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below will be to embodimentIn the accompanying drawing of required use be briefly described, should be appreciated that the following drawings only showsSome embodiment of the present invention, therefore should not be viewed as the restriction to scope, for abilityTerritory those of ordinary skill, is not paying under the prerequisite of creative work, can also basisThese accompanying drawings obtain other relevant accompanying drawings.
Fig. 1 draws for measured automobiles air bag system for the one that the embodiment of the present invention providesThe system block diagram of the device of quick-fried time period.
A kind of power supply that Fig. 2 provides for the embodiment of the present invention and the connection diagram of sensor.
A kind of power supply that Fig. 3 provides for the embodiment of the present invention and the connection diagram of each device.
Reference numeral gathers:
Power supply 100; Oscillograph 101; Crash sensor 102; Air bag 103; SafetyAir spring control 104; First sensor 105; The second sensor 106; The 3rd sensor 107.
Detailed description of the invention
The present invention includes but be not limited to following three kinds of detailed description of the invention: stand static state simulates touchesHit that measurement, real vehicle static state simulate that collision is measured and real vehicle dynamically true collision measure wherein, instituteState stand static state simulate collision measure principle be: described automobile air-bag system is fixed onMeasure on stand, make described crash sensor go to clash into described the first sensing along prescribed directionDevice, and by now carve be recorded as collision the moment described in real vehicle static state simulate collision measure principleBe: described automobile air-bag system is arranged on by actual entrucking mode with it real vehicle, described inFirst sensor is placed near described crash sensor, makes described crash sensor along regulationDirection removes to clash into described first sensor, and will now carve be recorded as collision the moment described in real vehicleThe principle that dynamically true collision is measured is: described automobile air-bag system is by actual entrucking sideFormula is arranged on it real vehicle, and described first sensor is fixed on vehicle body and will first bumpsPosition, make vehicle body hit barrier with enough speed, described first sensor and described inCrash sensor is activated simultaneously, and will now carve to be recorded as and collide the moment.
Further, described crash sensor is divided into peripheral crash sensor and central authorities' collision biographySensor, part automobile air-bag system does not have described peripheral crash sensor, described in only havingCentral authorities' crash sensor, usually described central crash sensor is integrated in described air bagIn controller, this kind of situation: simulating collision need be with described safety air sac controller along regulationDirection removes to clash into described first sensor.
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below willWith the first detailed description of the invention: stand static state simulates collision and is measured as example, in conjunction with the present inventionAccompanying drawing in embodiment, carries out clearly and completely the technical scheme in the embodiment of the present inventionDescribe, obviously, described embodiment is the present invention's part embodiment, instead of allEmbodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not doingGo out the every other embodiment obtaining under creative work prerequisite, all belong to the present invention's protectionScope.
It should be noted that: in similar label and letter accompanying drawing below, represent similar terms, because ofThis, once be defined in an a certain Xiang Yi accompanying drawing, it is right in accompanying drawing subsequently, not needIt further defines and explains.
As shown in Figure 1, the one that the embodiment of the present invention provides is for measured automobiles substituteBag system is ignited the device of time period, and described air bag system comprises power supply 100, collisionSensor 102, safety air sac controller 104 and air bag 103, described air bag controlBetween device 104 processed and described air bag 103, transmitting wire harness by ignition signal is connected. InstituteState device and comprise power supply 100, oscillograph 101, first sensor 105, the second sensor 106With the 3rd sensor 107, described first sensor 105, described the second sensor 106 and instituteStating the 3rd sensor 107 is connected respectively with described oscillograph 101. Described crash sensor 102Be connected respectively with described safety air sac controller 104 with described air bag 103, described in showRipple device 101 first passages are connected with described first sensor 105, described oscillograph 101Igniting between two passages and described safety air sac controller 104 and described air bag 103Signal transmssion line Shu Xianglian, described oscillograph 101 third channels and described the second sensor 106Be connected, described oscillograph 101 four-ways are connected with described the 3rd sensor 107.
Wherein, described power supply 100 is preferably D.C. regulated power supply. And described oscillograph 101Adopt civilian power supply (civil power) to power. The performance parameter of described oscillograph 101 is preferredFor 350MHz, 2.5GS/s, there is time measurement cursor, there is time measurement function or propertyEnergy parameter is close or higher therewith. Described oscillograph is preferably TektronixDOP4034B.
Preferably, described power supply 100 provides 12V voltage (body of a motor car voltage), described inCrash sensor 102 is adjacent with described first sensor 105, makes described crash sensor 102Remove to clash into described the of described first sensor 105 along the direction of regulation with enough speedOne shell fragment, described crash sensor 102 is activated, to described safety air sac controller 104Send collision alarm, simultaneously described first shell fragment of described first sensor 105 and described theTwo shell fragment contacts, the voltage between described the first shell fragment and described the second shell fragment changes, instituteThe moment of stating the first passage collection of oscillograph 101 and record this voltage signal variation is for occurringThe moment T0. of collision
Preferably, described safety air sac controller 104 is detecting described crash sensor 102After the collision alarm sending, by analysis and process, then send to described air bag 103Ignition signal, the second channel of described oscillograph 101 is connected in described safety air sac controller104 and described air bag 103 between ignition signal transmission wire harness on, described igniting letterNumber basis is as voltage signal, in the time that described ignition signal sends, and of described oscillograph 101It is that ignition signal sends the moment that two passages directly gather and record the moment that this voltage signal sendsT1.
Preferably, described the second sensor 106 is located at the cover cap table of described air bag 103Face, and described the second sensor 106 is connected with described air bag 103 cover cap one. WhenWhen described air bag 103 receives ignition signal and starts to inflate, described air bag 103Cover cap and the masking foil of described the second sensor 106 splitted simultaneously, described the second sensingThe voltage at the masking foil two ends of device 106 changes, the third channel of described oscillograph 101Gathering and record the moment that this voltage signal changes is that described air bag 103 starts to fillThe moment T2. of gas
Preferably, described the 3rd sensor 107 be located at described air bag 103 directly over,Described the 3rd shell fragment of described the 3rd sensor 107 arrives the distance of described air bag 103 etc.Height in the time that described air bag 103 has been inflated. When described air bag 103 is inflatedWhile having approached, described air bag 103 can be first with described in described the 3rd sensor 107The 4th shell fragment contact, and further make described the 4th shell fragment contact with described the 3rd shell fragment, thisTime air bag 103 inflated, the voltage between described the 4th shell fragment and described the 3rd shell fragmentChange. The four-way collection of described oscillograph 101 is also recorded this voltage signal generationThe moment changing is the moment T3. that described air bag 103 has been inflated
As shown in Figure 2, described power supply 100 comprises D.C. regulated power supply 100, described direct currentVoltage-stabilized power supply 100 preferred voltage are 12V. Described D.C. regulated power supply 100 is with described firstSensor 105, described the second sensor 106 and described the 3rd sensor 107 are connected respectively.And described D.C. regulated power supply 100 is in series with fuse and load resistance, described fuse andLoad resistance is for protecting described device. Described load resistance comprise the first resistance,The second resistance and the 3rd resistance, described the first resistance, described the second resistance and described the 3rd electricityResistance is for dividing potential drop and current limliting. Wherein, described the first resistance is connected in described first sensor105, described the second resistance is connected in described the second sensor 106, and described the 3rd resistance connectsIn described the 3rd sensor 107.
As shown in Figure 3, described power supply 100 is also connected with described safety air sac controller 104,Described power supply 100 is for the operating voltage of described safety air sac controller 104.
Preferably, described first sensor 105, described the second sensor 106 and describedThree sensors 107 are voltage sensor. When described crash sensor 102 passes with described firstWhen sensor 105 collides, voltage signal that described first sensor 105 produces by described in showFirst passage collection and the record of ripple device 101. When described safety air sac controller 104 sendsWhen ignition signal, described ignition signal is by second channel collection and the note of described oscillograph 101Record. In the time that described air bag 103 responds and starts to inflate described ignition signal,The voltage signal that described the second sensor 106 produces is by the third channel of described oscillograph 101Gather and record. When described the 3rd sensing has been inflated and touched to described air bag 103When described the 3rd shell fragment of device 107, the voltage signal quilt that described the 3rd sensor 107 producesFour-way collection and the record of described oscillograph 101.
Further, described first sensor 105 comprises the first shell fragment and the second shell fragment. InstituteState the first shell fragment adjacent with described crash sensor 102, described the second shell fragment and described firstShell fragment is adjacent and parallel, and described the second shell fragment is fixed. When described crash sensor 102 alongThe direction of regulation is clashed into described first shell fragment of described first sensor 105 with enough speedTime, described crash sensor 102 comes in contact and makes described first with described the first shell fragmentThere is corresponding displacement in shell fragment, thereby described the first shell fragment contacts with described the second shell fragment, itsIn, described the first shell fragment is connected in described power supply 100 by described the first resistance and fusePositive pole, described the second shell fragment is connected in the negative pole of described power supply 100, described oscillograph 101The probe of first passage is connected to described the first shell fragment and described the second shell fragment. When describedCrash sensor 102 touches described the first shell fragment, because described the first shell fragment is unfixing,Resistance is very little, can not make described crash sensor 102 activate, and described the second shell fragment is fixed,In the time that described crash sensor 102 hits described the second shell fragment with described the first shell fragment, produceRaw enough negative acceleration, activate described crash sensor 102, simultaneously described the first shell fragmentContact lower voltage between described the first shell fragment and described the second shell fragment with described the second shell fragment.The voltage signal that described first sensor 105 produces is by the first passage of described oscillograph 101Gather and record.
Further, described safety air sac controller 104 is detecting described crash sensorAfter 102 collision alarms that send, by analysis and process, then to described air bag 103Send ignition signal, the second channel of described oscillograph 101 is connected in described air bag controlOn ignition signal transmission wire harness between device 104 processed and described air bag 103, described pointFire code book as voltage signal, in the time that described ignition signal sends, described oscillograph 101Second channel directly gather and record.
Further, described the second sensor 106 comprises masking foil. Preferred described masking foilBe located at the cover surfaces of described air bag 103, one end of described masking foil is by described theTwo resistance and fuse are connected in the positive pole of described power supply 100, the other end of described masking foilBe connected in the negative pole of described power supply 100, the probe of described oscillograph 101 third channels respectivelyBe connected in the two ends of described masking foil. When described air bag 103 enters described ignition signalWhen row responds and starts to inflate, described air bag 103 is earned brokenly cover cap and is made described masking foilRupture, described masking foil both end voltage raises, and this voltage signal is by described oscillograph 101Third channel collection and record.
Preferably, the minimum widith of described masking foil is 1 millimeter.
Further, described the 3rd sensor 107 comprises the 3rd shell fragment and the 4th shell fragment, instituteState the 3rd shell fragment adjacent and parallel with described the 4th shell fragment. Described the 3rd shell fragment is preferably fixingShell fragment and equal described air bag 103 to the distance of described air bag 103 and inflatedAfter height. And described the 4th shell fragment be located at described the 3rd shell fragment under. The described the 3rdShell fragment is connected in the positive pole of described power supply 100 by described the 3rd resistance and fuse, described inThe 4th shell fragment is connected in the negative pole of described power supply 100, the four-way of described oscillograph 101Probe be connected to described the 3rd shell fragment and described the 4th shell fragment. When described air bag103 approach when having inflated and having contacted with described the 4th shell fragment, and described the 4th shell fragment is in instituteState under the promotion of air bag 103 and deformation occurs and contact with described the 3rd shell fragment, nowAir bag 103 has been inflated, and wherein said the 3rd shell fragment and the described the 4th plays bar-to-bar voltageReduce, this voltage signal is by four-way collection and the record of described oscillograph 101.
Preferably, the surface of described crash sensor 102 is also provided with acceleration transducer,Described acceleration transducer is fixedly connected with described crash sensor 102. Described acceleration passesSensor is also connected with display. Described acceleration transducer is for detection of described crash sensorWhat 102 minimum acceleration that need while being activated and different acceleration were corresponding sends ignition signalThe needed time, described display enters for the data that described acceleration transducer is recordedRow shows.
When the embodiment of the present invention also provides one to ignite for measured automobiles air bag systemBetween the method for section, described automobile air-bag system comprise power supply 100, crash sensor 102,Safety air sac controller 104 and air bag 103. Described method is applied in device, instituteState device and comprise power supply 100, oscillograph 101, first sensor 105, the second sensor 106With the 3rd sensor 107.
Particularly, described crash sensor 102 is adjacent with described first sensor 105, makesDescribed crash sensor 102 goes to clash into described first along the direction of regulation with enough speedDescribed first shell fragment of sensor 105, described crash sensor 102 is activated, to describedSafety air sac controller 104 sends collision alarm, simultaneously the institute of described first sensor 105State the first shell fragment and contact with described the second shell fragment, between described the first shell fragment and described the second shell fragmentLower voltage, the first passage collection of described oscillograph 101 is also recorded this voltage signal and is becomeThe moment of changing is the moment T0 bumping; Described safety air sac controller 104 is detectingAfter the collision alarm that described crash sensor 102 sends, by analysis and process, then to instituteState air bag 103 and send ignition signal, the second channel of described oscillograph 101 is connected inIgnition signal transmission between described safety air sac controller 104 and described air bag 103On wire harness, described ignition signal is originally as voltage signal, and second of described oscillograph 101 leads toIt is that ignition signal sends moment T1 that road directly gathers and record the moment that this voltage signal sends;Described the second sensor 106 is located at the cover surfaces of described air bag 103, and describedTwo sensors 106 are connected with described air bag 103 cover cap one. When described air bag103 when receiving ignition signal and starting to inflate, the cover cap of described air bag 103 and instituteThe masking foil of stating the second sensor 106 is splitted simultaneously, the tin of described the second sensor 106The voltage at foil paper two ends raises, and the third channel collection of described oscillograph 101 is also recorded this electricityThe moment of pressing signal to change is the moment T2 that described air bag 103 starts inflation; InstituteState the 3rd sensor 107 be located at described air bag 103 directly over, described the 3rd sensingDescribed the 3rd shell fragment of device 107 equals described substitute to the distance of described air bag 103Height after capsule 103 has been inflated. In the time that described air bag 103 inflations have approached,Described air bag 103 can first contact with described the 4th shell fragment of described the 3rd sensor 107,And further make described the 4th shell fragment contact with described the 3rd shell fragment, now air bag 103Inflation completes, now the lower voltage between described the 4th shell fragment and described the 3rd shell fragment. DescribedThe four-way collection of oscillograph 101 to record the moment that this voltage signal changes be instituteState the moment T3 that air bag 103 has been inflated.
Preferably, after connecting with upper-part, open described power supply 100, and voltageBe transferred to consistent with predeterminated voltage. Open four passages of described oscillograph 101, described in adjustingThe original position of four passage waveforms and scale, preferred described scale is 20 volts. Gather and rememberRecord described first sensor 105, described the second sensor 106 and described the 3rd sensor 107In the moment that voltage signal changes, gather and record described safety air sac controller 104 HesVoltage signal on ignition signal transmission wire harness between described air bag 103 changesMoment. Record complete after, the time cursor carrying by oscillograph 101 is measured eachDifference between moment point, draws the time period, and the described time period comprises from bumping to be sent outGo out the time (T1-T0) of ignition signal, from sending ignition signal to described air bag 103Start inflation time (T2-T1), start to be inflated to from described air bag 103 and inflatedThe time (T3-T2) becoming and the time (T3-T0) completing from the inflation that bumps.
Further, the time cursor that described oscillograph 101 carries comprise time cursor a andTime cursor b, measures each passage by described time cursor a and described time cursor bThe voltage signal of record changes the moment, and automatically calculates described automobile air-bag system and drawThe quick-fried time period. Open the time cursor function of stating oscillograph 101, by described oscillograph 101The waveform that significant change occurs in first passage first moves to center Screen and is amplified to maximum,Described cursor a is moved to this waveform and start variation place, described oscillograph 101 shows note automaticallyRecord this signal and start moment of changing and moment T0 occurs for collision, by described oscillograph 101 theThe waveform that significant change occurs in two passages first moves to center Screen and is amplified to maximum, willDescribed cursor b moves to this waveform and starts variation place, and described oscillograph 101 shows record automaticallyThe moment that this signal starts to change is the moment T1 that sends ignition signal, described oscillograph 101Automatically calculate the time value of T0 to T1, the time of sending ignition signal from bumping to(T1-T0); By motionless described cursor b, will in described oscillograph 101 third channels, send out firstThe waveform of raw significant change moves to center Screen and is amplified to maximum, and described cursor a is moved toThis waveform starts variation place, and described oscillograph 101 shows that recording this signal starts to change automaticallyMoment be the moment T2 that described air bag 103 starts inflation, described oscillograph 101 fromThe moving time value of T1 to T2 of calculating, opens to stating air bag 103 from sending ignition signalThe time (T2-T1) of beginning inflation; By motionless described cursor a, by described oscillograph 101 the 4thThe waveform that significant change occurs in passage first moves to center Screen and is amplified to maximum, by instituteState cursor b and move to this waveform and start variation place, described oscillograph 101 shows that record should automaticallyThe moment that signal starts to change is the moment T3 that described air bag 103 has been inflated, described inOscillograph 101 calculates the time value of T2 to T3 automatically, opens from described air bag 103Begin to be inflated to the time (T3-T2) of having inflated; By motionless described cursor b, by described oscillographyThe waveform that significant change occurs in device 101 first passages first moves to center Screen and is amplified toMaximum, moves to this waveform by described cursor a and starts variation place, and described oscillograph 101 is automaticShow record this signal start change moment for collision occur moment T0, described oscillograph101 calculate the time value of T0 to T3, the time completing from the inflation that bumps automatically(T3-T0). Due to used oscillograph sample rate high (2.5GS/s), so measureTime precision theoretical value be nanosecond (ns).
A kind of measured automobiles air bag system that the embodiment of the present invention provides is ignited the time periodDevice and method, by described first sensor 105 measure moment (T0) of bumping,By the ignition signal between described safety air sac controller 104 and described air bag 103Transmission wire harness measurement point fire signal sends the moment (T1), passes through described in the second sensor measurementAir bag 103 responds ignition signal and starts the moment (T2) of inflation and pass through the 3rdThe moment (T3) that described in sensor measurement, air bag 103 has been inflated, above-mentioned four timeCarve and show, record and calculate by oscillograph, and then measure safe automobile air bag systemThe time period that system is ignited, the present invention does not need to use expensive high-speed camera, effectivelyReduce testing cost; Do not need professional laboratory or test site, effectively reduce simultaneouslyTo the requirement of test environment, improve certainty of measurement.
It should be noted that, in the several embodiment that provide in the application, should be understood that,The apparatus and method that disclose, can realize by another way. Device described aboveEmbodiment is only that schematically for example, the division of described unit, is only a kind of logicFunction is divided, and when actual realization, can have other dividing mode.
The described unit as separating component explanation can be or can not be also physically to divideOpen, the parts that show as unit can be or can not be also physical location,To be positioned at a place, or also can be distributed on multiple NEs. Can be according to realityThe needs on border select some or all of unit wherein to realize the order of the present embodiment scheme.
In addition, the each functional unit in each embodiment of the present invention can be integrated in a placeIn reason unit, can be also that the independent physics of unit exists, also can two or two withUpper unit is integrated in a unit.
If described function realizes and as product pin independently using the form of SFU software functional unitWhen selling or using, can be stored in a computer read/write memory medium. Based on like thisUnderstanding, the portion that technical scheme of the present invention contributes to prior art in essence in other wordsPoint or the part of this technical scheme can embody with the form of software product, this calculatingMachine software product is stored in a storage medium, comprises that some instructions are in order to make a meterCalculation machine equipment (can be personal computer, server, or the network equipment etc.) carry out thisInvent all or part of step of method described in each embodiment. And aforesaid storage medium bagDraw together: USB flash disk, portable hard drive, read-only storage (ROM, Read-OnlyMemory),Random access memory (RAM, RandomAccessMemory), magnetic disc or CDEtc. various media that can be program code stored.
It should be noted that, in this article, the relational terms such as the first and second gradesOnly be used for an entity or operation and another entity or operating space to separate, and notNecessarily require or imply these entities or operation between exist any this reality relation orPerson's order. And term " comprises ", " comprising " or its any other variant are intended to containComprising of nonexcludability, thus make to comprise that the article of a series of key elements or equipment not only wrapDraw together those key elements, but also comprise other key elements of clearly not listing. There is no more limitsIn the situation of system, the key element being limited by statement " comprising ... ", and be not precluded within and compriseIn the article of described key element or equipment, also there is other identical element.
The above, be only the specific embodiment of the present invention, but protection scope of the present inventionBe not limited to this, any be familiar with those skilled in the art the present invention disclose skillWithin the scope of art, can expect easily changing or replacing, all should be encompassed in protection scope of the present inventionWithin. Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (10)
1. ignite the device of time period for measured automobiles air bag system, described vapourCar air bag system comprises power supply, crash sensor, safety air sac controller and substituteCapsule, is characterized in that, described device comprises power supply, oscillograph, first sensor, secondSensor and the 3rd sensor, described crash sensor and described air bag are respectively by electricityThe line of force is connected with described safety air sac controller, and described oscillograph is connected in described the first sensingIgnition signal between device, described safety air sac controller and described air bag transmission wire harness,Described the second sensor and described the 3rd sensor;
Wherein, in collision, occur the moment, the voltage at described first sensor two ends changes,Described crash sensor is activated simultaneously, and described the second sensor is located at described air bag coverLid surface, described the 3rd sensor be located at the top of described air bag cover cap and arrive described inThe height when distance of air bag cover cap equals described airbag inflated and completes, describedOne sensor is used for measuring the moment bumping, described safety air sac controller and described peaceIgnition signal transmission wire harness between full air bag is used for measuring the moment of sending ignition signal, instituteState the second sensor starts inflation moment for measuring described air bag, the described the 3rd passesSensor is for measuring the moment that described airbag inflated completes, and described oscillograph is used for instituteState the igniting letter between first sensor, described safety air sac controller and described air bagThe voltage signal that number transmission wire harness, described the second sensor and described the 3rd sensor gather becomesChanging the moment records and calculates.
2. according to claim 1 for the measured automobiles air bag system ignition timeThe device of section, is characterized in that, described power supply comprises D.C. regulated power supply, and described direct current is steadyVoltage source is in series with fuse and load resistance, and described load resistance comprises the first resistance,Two resistance and the 3rd resistance, described the first resistance is connected in described first sensor, and describedTwo resistance are connected in described the second sensor, and described the 3rd resistance is connected in described the 3rd sensingDevice.
3. according to claim 2 for the measured automobiles air bag system ignition timeThe device of section, is characterized in that, described first sensor, described the second sensor and described inThe 3rd sensor is voltage sensor, and the ignition signal that described safety air sac controller sends isVoltage signal, described ignition signal, described first sensor, described the second sensor and instituteStating the 3rd sensor shows and remembers for voltage signal being sent to described oscillographRecord.
4. according to claim 1 for the measured automobiles air bag system ignition timeSection device, it is characterized in that, described power supply be connected to described safety air sac controller,Described first sensor, described the second sensor and described the 3rd sensor.
5. according to claim 1 for the measured automobiles air bag system ignition timeThe device of section, is characterized in that, described first sensor comprises the first shell fragment and the second shell fragment,Described the first shell fragment and described the second shell fragment are connected in described power supply, in the time bumping, and instituteState crash sensor and be activated, described the first shell fragment and described the second shell fragment are in contact with one another simultaneously,Described the first shell fragment is connected with described oscillograph with described the second shell fragment;
In the time of described not bumping, described the first shell fragment and described the second shell fragment be close to each other,Parallel and insulation, described the second shell fragment is fixation spring tab.
6. according to claim 1 for the measured automobiles air bag system ignition timeThe device of section, is characterized in that, described the second sensor is connected in power supply, and described second passesSensor comprises masking foil, and described masking foil is located at the surface of described air bag cover cap, described inMasking foil two ends are connected with described oscillograph by power line.
7. according to claim 6 for the measured automobiles air bag system ignition timeThe device of section, is characterized in that, the minimum widith of described masking foil is 1 millimeter.
8. according to claim 1 for the measured automobiles air bag system ignition timeThe device of section, is characterized in that, described the 3rd sensor comprises the 3rd shell fragment and the 4th shell fragment,Described the 3rd shell fragment and described the 4th shell fragment are connected in described power supply, and described the 3rd shell fragment is to instituteThe height when distance of stating air bag cover surfaces equals described airbag inflated and completes,Described the 4th shell fragment be located at described the 3rd shell fragment under, and described the 4th shell fragment and described inThe 3rd shell fragment close to each other, parallel and insulation;
Described air bag contacts with described the 4th shell fragment in the time opening completely, so that describedFour shell fragments are contacted with described the 3rd shell fragment, described the 3rd shell fragment and described the 4th shell fragment with described inOscillograph is connected.
9. according to claim 1 for the measured automobiles air bag system ignition timeThe device of section, is characterized in that, the surface of described crash sensor is provided with acceleration sensingDevice, described acceleration transducer is also connected with display, and described acceleration transducer is for inspectionSurvey described crash sensor be activated need minimum acceleration and different acceleration corresponding send outGo out the needed time of ignition signal, described display is for showing described acceleration.
10. a method of igniting the time period for measured automobiles air bag system, is applied toIn measurement mechanism, described automobile air-bag system comprises power supply, crash sensor, safetyAir spring control and air bag, is characterized in that, described device comprise power supply, oscillograph,First sensor, the second sensor and the 3rd sensor;
Wherein, the voltage between described first sensor two shell fragments is swashed at described crash sensorWhen living, change, in the time bumping, described crash sensor is activated, simultaneouslyDescribed the first shell fragment contacts with the second shell fragment, and described the first shell fragment and second plays bar-to-bar voltage letterNumber change, and the described voltage signal changing is sent to described oscillograph carries outShow and record;
When described safety air sac controller receives the collision alarm that described crash sensor sendsAfter will send ignition signal, described ignition signal is by described safety air sac controller and instituteStating ignition signal between air bag transmission wire harness is sent to described oscillograph and shows and rememberRecord;
Described the second sensor is located at the surface of described air bag cover cap, when described substituteCapsule starting point is fought and is started to inflate while earning brokenly described air bag cover cap, and described masking foil simultaneouslyQuilt is earned disconnected, and described the second sensor both end voltage signal changes, and becomes describedThe voltage signal of changing is sent to described oscillograph and shows and record;
Described the 3rd sensor is located at the top of described air bag cover cap and is arrived described substituteThe height when distance of capsule equals described airbag inflated and completes, when described air bag fillsWhen gas completes, described the 3rd shell fragment of described the 3rd sensor contacts with described the 4th shell fragment,Voltage signal between described the 3rd shell fragment and described the 4th shell fragment changes, and by describedThe voltage signal of changing is sent to described oscillograph and shows and record.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107297A (en) * | 2018-01-16 | 2018-06-01 | 吉利汽车研究院（宁波）有限公司 | A kind of measuring device and method for being used to collide rear vehicle security system triggering moment |
| CN110766677A (en) * | 2019-10-24 | 2020-02-07 | 吉林大学 | Automatic detection method for parameters and abnormity of air bag detonation process based on machine vision |
| CN114878179A (en) * | 2022-04-08 | 2022-08-09 | 中汽研汽车检验中心(广州)有限公司 | Safety airbag explosion test method and system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4711466A (en) * | 1986-06-27 | 1987-12-08 | Breed Corporation | Method and apparatus for gas generator initiation from external sensor |
| JPH06219234A (en) * | 1993-01-26 | 1994-08-09 | Nissan Motor Co Ltd | Passenger lock device for vehicle |
| JP2006300682A (en) * | 2005-04-20 | 2006-11-02 | Meidensha Corp | Throttle actuator of dynamometer |
| CN101134452A (en) * | 2006-08-30 | 2008-03-05 | 丰田合成株式会社 | Airbag apparatus |
| CN101685307A (en) * | 2008-09-26 | 2010-03-31 | 比亚迪股份有限公司 | Device and method for testing safety airbag ECU |
| CN102768119A (en) * | 2012-08-08 | 2012-11-07 | 吉林大学 | Automobile safety air bag unfolding speed and acceleration test buffering device |
| CN204479258U (en) * | 2015-03-02 | 2015-07-15 | 奇瑞汽车股份有限公司 | The quick-fried shock table of air bag point |
-
2016
- 2016-03-07 CN CN201610127187.0A patent/CN105588723B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4711466A (en) * | 1986-06-27 | 1987-12-08 | Breed Corporation | Method and apparatus for gas generator initiation from external sensor |
| JPH06219234A (en) * | 1993-01-26 | 1994-08-09 | Nissan Motor Co Ltd | Passenger lock device for vehicle |
| JP2006300682A (en) * | 2005-04-20 | 2006-11-02 | Meidensha Corp | Throttle actuator of dynamometer |
| CN101134452A (en) * | 2006-08-30 | 2008-03-05 | 丰田合成株式会社 | Airbag apparatus |
| CN101685307A (en) * | 2008-09-26 | 2010-03-31 | 比亚迪股份有限公司 | Device and method for testing safety airbag ECU |
| CN102768119A (en) * | 2012-08-08 | 2012-11-07 | 吉林大学 | Automobile safety air bag unfolding speed and acceleration test buffering device |
| CN204479258U (en) * | 2015-03-02 | 2015-07-15 | 奇瑞汽车股份有限公司 | The quick-fried shock table of air bag point |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107297A (en) * | 2018-01-16 | 2018-06-01 | 吉利汽车研究院（宁波）有限公司 | A kind of measuring device and method for being used to collide rear vehicle security system triggering moment |
| CN108107297B (en) * | 2018-01-16 | 2020-11-03 | 吉利汽车研究院（宁波）有限公司 | Device and method for measuring triggering time of vehicle safety system after collision |
| CN110766677A (en) * | 2019-10-24 | 2020-02-07 | 吉林大学 | Automatic detection method for parameters and abnormity of air bag detonation process based on machine vision |
| CN110766677B (en) * | 2019-10-24 | 2022-03-18 | 吉林大学 | Automatic detection method for parameters and abnormity of air bag detonation process based on machine vision |
| CN114878179A (en) * | 2022-04-08 | 2022-08-09 | 中汽研汽车检验中心(广州)有限公司 | Safety airbag explosion test method and system |
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|---|---|
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