CN1757544A - Pedestrian detecting device and correlation method - Google Patents
Pedestrian detecting device and correlation method Download PDFInfo
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- CN1757544A CN1757544A CNA2005100716582A CN200510071658A CN1757544A CN 1757544 A CN1757544 A CN 1757544A CN A2005100716582 A CNA2005100716582 A CN A2005100716582A CN 200510071658 A CN200510071658 A CN 200510071658A CN 1757544 A CN1757544 A CN 1757544A
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- 230000003287 optical effect Effects 0.000 claims description 29
- 238000005728 strengthening Methods 0.000 claims description 17
- 230000035939 shock Effects 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 description 8
- 230000004224 protection Effects 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000013308 plastic optical fiber Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000037396 body weight Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
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- 238000010586 diagram Methods 0.000 description 2
- 206010039203 Road traffic accident Diseases 0.000 description 1
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- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
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- 230000003760 hair shine Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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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
- B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
- B60R2021/0104—Communication circuits for data transmission
- B60R2021/01081—Transmission medium
- B60R2021/01095—Transmission medium optical
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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
- B60R21/34—Protecting non-occupants of a vehicle, e.g. pedestrians
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a pedestrian sensor device elative method, which comprises a pedestrian sensor 2 mounted on the bumper 1 of vehicle V, wherein the pedestrian sensor 2 comprises an impact sensor which comprises an optical fiber extended along the bumper 1, for generating one signal according to the transmission light of the optical fiber and further comprises an judger 3 for judging if the vehicle V is impacted with pedestrian according to the signal.
Description
The cross reference of related application
The application relates to Japanese patent application No.2004-78960, and its applying date is on March 18th, 2004, and the content of this application here as a reference.
Technical field
The application relates to pedestrian detecting device, particularly, relates to a kind of pedestrian detecting device that can detect the collision of pedestrian and vehicle, and it also relates to correlation technique.
Background technology
In recent years, take various effort to come in traffic accident, to improve safety, not only will guarantee the safety with the pedestrian of collision happens, also will improve when getting into an accident passenger's safety in the car.
As the measure of protection pedestrian in collision, ining all sorts of ways in the past reduces impulsive force, and impulsive force acts on the pedestrian when being the hood of vehicle and pedestrian impact, comes to reduce as much as possible injury values (impact that the pedestrian is subjected to) whereby.
For example; Japanese Patent discloses text No.11-28994 (patent documentation 1) temporarily and discloses a kind of pedestrian protection; its structure is the hood at rising vehicle when vehicle and pedestrian bump; so that absorb and alleviate the impact that secondary collision causes, secondary collision causes owing to pedestrian and vehicle encounters.Particularly, when vehicle bumps with the pedestrian in the process of moving and throws the pedestrian, by the pedestrian that thrown just with the upper surface of hood bump (secondary collision).When this thing happens, hood was triggered and is elevated, and made hood absorb in secondary collision and alleviated impact.In collision process, just can alleviate injury like this to the pedestrian.
And vehicle has been installed increasing electronic product, believes that this trend can sustainable growth.Each product that is installed on the vehicle all will pass through EMC (electromagnetic compatibility) test.As a rule, disclosed pedestrian protection will be tested by EMC in the patent documentation 1.
What expect easily is, with pedestrian's fender guard together, covers the front region of bumper reinforcement when have pedestrian's sensor to be arranged to bump between it need be with reasonable manner measuring vehicle and pedestrian.When pedestrian's sensor comprises a sensor, when this sensor can utilize the variation of electric current to come collision detection, pedestrian's sensor itself can be used as an antenna, and electromagnetic wave is launched other electronic product of negative effect from this antenna.On the contrary, pedestrian's sensor receives the electromagnetic wave that other electronic product emits, and causes occurring the operation of mistake.Like this, pedestrian's sensor will be disadvantageous product structure, because its anti-EMC is relatively poor.
For example, draw together in the structure of the wire harness type sensor that detects pedestrian and collision happens in pedestrian's sensor pack, if the length of sensor is longer, sensor just has an electromagnetic armouring structure usually, so that can improve EMC performance and sensing capabilities.For example, Japanese Patent temporarily openly text No.6-302985 (patent documentation 2) a kind of electromagnetic screening wire gauze is disclosed, it is made of wire gauze or the wire gauze of having electroplated the braiding of metallo-nonmetal wire, it can be used for counterchecking electromagnetic wave.
But wire harness type sensor adopts electromagnetic armouring structure, and sensor is covered by for example material of electromagnetic screening wire gauze and shields electromagnetic wave, uses this sensor to roll up with regard to the cost that causes pedestrian detecting device.That is to say that not only the material of electromagnetic screening wire gauze itself can increase cost, and the cost of assembling these parts can increase also.
Summary of the invention
The present invention considers the problems referred to above, and its purpose provides a kind of vehicle-mounted pedestrian detecting device and correlation technique thereof of being fit to, and can detect the collision that takes place between vehicle and the pedestrian.
In order to reach above-mentioned target, one aspect of the present invention provides a kind of pedestrian detecting device, this device comprises pedestrian's sensor, it has comprised a shock transducer, this shock transducer has an optical fiber and a light that is connected on the optical fiber that is installed in front part of vehicle and transmits and receives the unit, make when impact effect is fore, can produce the signal that the function of fiber optic light quantity is passed in a conduct; A judging unit can judge whether pedestrian and collision happens according to the signal that pedestrian's sensor is sent, and produces the signal of this situation of expression.
In pedestrian detecting device of the present invention, pedestrian's sensor comprises one by comprising fiber optic shock transducer, and optical fiber can not transmit and receive electromagnetic wave.Therefore, pedestrian's sensor just can not make a mistake operation, can not have a negative impact to other electronic product simultaneously.And, because optical fiber is not influenced by electromagnetic wave, so do not need expensive electromagnetic screen, for example electro-magnetic shielding cover at optical fiber itself.Like this, pedestrian detecting device work is more reliable, and manufacturing cost is lower.
According to a further aspect in the invention, the front portion of vehicle has bumper/spoiler, and optical fiber is horizontal expansion in bumper/spoiler.
Adopt this structure,, and be arranged in the very little space of bumper/spoiler, so in vehicle, just do not need very big space that pedestrian detecting device is installed because the fiber optic diameter of pedestrian's sensor is less.Like this, pedestrian detecting device just can be installed under the situation that does not increase vehicle structure in the littler space in the vehicle.
According to a further aspect in the invention, shock transducer comprises that a bumper/spoiler strengthening part that is installed on the vehicle bumper carries optical fiber thereon.
By such structure, because the rigidity supporting structure of bumper/spoiler strengthening part, the optical fiber of pedestrian's sensor can protectedly prevent to damage, like this longer service life of pedestrian detecting device.
According to a further aspect in the invention, shock transducer comprises that is arranged on a bumper/spoiler strengthening part fwd loading plate, loading plate with wherein be provided with fiber optic bumper/spoiler strengthening part certain intervals arranged.
By such structure, loading plate can be so that the pressure that impact produced that is applied in knockout process on the bumper/spoiler passes to optical fiber with being had no loss.Like this, with the process of pedestrian impact in, loading plate is just oppressed optical fiber, has guaranteed to detect the increase of accuracy rate.
According to a further aspect in the invention, a resorber and also have a bumper/spoiler cover to be arranged on the front surface of resorber is arranged in the front of loading plate.
Because resorber is the front that is positioned at loading plate, and the bumper/spoiler cover is to be positioned on the front surface of resorber, just can prevent that loading plate from damaging, and what guarantee simultaneously that pressure that bump is produced can have no to lose is applied on the optical fiber, thereby detects bump reliably.
According to a further aspect in the invention, an impact transference part part is arranged in vehicle bumper, it has a plurality of projections related with optical fiber, and impulsive force is passed to optical fiber, makes fibre strain, thereby changes the light intensity loss of passing fiber optic transmission light.
By such structure, because the impact transference part part is arranged in bumper/spoiler, these parts have a plurality of projections related with optical fiber, so a plurality of projections of impact transference part part can be oppressed optical fiber, optical fiber will deflection in pedestrian's striking process, change the light intensity of passing fiber optic transmission light, the result just can increase the accuracy of detection of pedestrian detecting device.
According to a further aspect in the invention, pedestrian detecting device also comprises an optical transmitting set and an optical receiver, and optical transmitting set is to fiber optic end emission light, and optical receiver receives transmission light from the fiber optic other end.
Optical transmitting set and optical receiver are all very little, can not increase the installing space in the car.Like this, pedestrian detecting device just can be installed in the installing space minimum in the car.
According to a further aspect in the invention, provide a kind of and can detect the method for between vehicle and pedestrian, colliding.This method comprises along the front portion of vehicle optical fiber is set, also having a light to transmit and receive the unit is connected on the optical fiber, make when impact effect is fore, can produce the signal that the function of fiber optic light quantity is passed in a conduct, give fiber optic end emission light, receive transmission light from the fiber optic other end, produce a signal.This method also comprises according to signal judging whether vehicle bumps with the pedestrian, and produces the signal that can represent this situation.
Description of drawings
For a better understanding of the present invention and represent how the present invention realizes, below will be by introducing according to a particular embodiment of the invention, with reference to following accompanying drawing:
Fig. 1 is a scheme drawing that is equipped with according to the vehicle of pedestrian detecting device of the present invention;
Fig. 2 is the section drawing of vehicle bumper shown in Fig. 1, and it has the pedestrian detecting device among this embodiment;
Fig. 3 is the exploded drawings of bumper/spoiler and pedestrian detecting device in the present embodiment;
Fig. 4 constitutes the optical fiber of the part of pedestrian detecting device in the present embodiment and the amplification sectional view of the parts that are associated;
Fig. 5 is to use the optical fiber shown in Fig. 4 to come the schematic diagram of detected pressures;
Fig. 6 is to use the optical fiber shown in Fig. 4 to come the schematic diagram of detected pressures.
The specific embodiment
Introduce the pedestrian detecting device of one embodiment of the invention below with reference to accompanying drawings.
Fig. 1 is a scheme drawing that is equipped with according to pedestrian detecting device of the present invention.Pedestrian detecting device among this embodiment is installed on the vehicle V; a bumper/spoiler 1 is equipped with in the front portion of vehicle; pedestrian detecting device comprises one, and to be installed in that pedestrian's sensor 2 in the vehicle bumper 1, one be installed on the vehicle V for example be the judging unit of calculating unit 3; with a plurality of pedestrian protections 30, this pedestrian protection 30 moves according to the collision alarm (command signal) that is sent by calculating unit 3.
Vehicle V is the vehicle that the described pedestrian detecting device of present embodiment is installed.Vehicle V comprises an engine bin E.And the vehicle V that the described pedestrian detecting device of present embodiment is housed can also comprise the vehicle of any kind that has bumper/spoiler 1.That is to say that the vehicle V that the described pedestrian detecting device of present embodiment is housed has an engine bin E in the front portion in the compartment of vehicle, but vehicle V has the type that tailstock baggage container replaces engine bin.
Shown in Fig. 1 to 3, the bumper/spoiler 1 of vehicle is installed in the front of the engine bin E of vehicle V.Pedestrian's sensor 2 is installed on the vehicle bumper 1.According to present embodiment, pedestrian's sensor 2 comprises a crash sensor, and this crash sensor comprises the bumper/spoiler strengthening part 10 on the front side member Vm of a front body VB who firmly is installed in vehicle V.The optical fiber 20 that constitutes the part of pedestrian's sensor 2 is the front surface horizontal expansions along bumper/spoiler strengthening part 10, and is the U-shaped structure.On the front surface of optical fiber 20, be equipped with one and be tabular loading plate 11 substantially, it constitutes the part of crash sensor, loading plate is positioned on the front surface of resorber 12, resorber 12 by elastomeric material for example foamed materials make, be used for reducing the impact that is applied on the loading plate 11.The resorber 12 thick stick cover 13 that is insured covers.
Fig. 2 is the section drawing of bumper/spoiler 1, and Fig. 3 is the exploded drawings of vehicle bumper 1, has represented the layout of each parts of vehicle bumper 1.And, in Fig. 3, removed bumper/spoiler cover 13.
Pedestrian's sensor 2 is positioned at the front of vehicle V, is used for detecting the collision of pedestrian and vehicle V.Pedestrian's sensor 2 comprises that an optical fiber 20 and a light that stretches along the front surface of bumper/spoiler strengthening part 10 transmits and receives unit 21, and this light transmits and receives unit 21 and comprises that one is used for receiving an end radiative optical transmitting set 21a (see figure 5) from the optical receiver 21b (see figure 5) of transmitting light to optical fiber 20 and the other end from optical fiber 20.Light transmit and receive the end that unit 21 is positioned at bumper/spoiler strengthening part 10 (near on the side at copilot seat) near, but also can be arranged in opposite end near the driver's seat.
More specifically, optical fiber 20 is positioned on the bumper/spoiler strengthening part 10, and optical fiber 20 extends to the other end (near on the side of driver's seat) that is positioned at optical fiber 20 outsides from an end (near on the side at copilot seat) of bumper/spoiler strengthening part 10, this other end turns back to a fiber optic end, forms and be seen as a U-shaped pattern before car.
As shown in Figure 4, optical fiber 20 comprises a fiber body of being made by plastic optical fibre 22, a snyed plate 23 and a molding 24, this snyed plate 23 is installed in the front of fiber body 22 as the impact transference part part and has the laterally spaced projection 230 related with fiber body 22 at a plurality of contact points place, this molding 24 is made of resin, pass through molding, fiber body 22 and snyed plate 23 are fixed together, and projection 230 keeps in abutting connection with combining with linearly extended fiber body 22.
Plastic optical fibre is made with large diameter optical fiber, and comprises a core, and light passes most of cross section of core.Not only cost is very low to be used for making fiber optic plastic optical fibre itself, and can reduce the cost of optics connection, connector and disposal cost, and plastic optical fibre has very strong anti-vibration and bending resistance, is suitable on the car.
Light transmits and receives unit 21 and transmits and receives the light that passes fiber body 22.The optical transmitting set 21a that light transmits and receives unit 21 launches the light that passes fiber body 22.Be not particularly limited in the light that is provided by the light of optical transmitting set emission and pass fiber body 22.
For example, the example of optical transmitting set 21a can comprise a light source, and light source can be for example commercial obtainable LED, can launch the light of 650nm wavelength.Optical transmitting set 21a can comprise a device that uses as light-emitting device in the device that uses relevant existing fiber.And optical transmitting set 21a also is configured to have the ability of adjusting the light intensity that incides the light on the fiber body 22.
Calculating unit 3 can be handled from the output signal of pedestrian's sensor 2 and bump with the pedestrian judging whether with this, and therefore produces the pedestrian impact signal.And pedestrian's sensor 2 and calculating unit 3 couple together by a transmitting device, and this transmitting device can transmit the output signal from pedestrian's sensor 2.Particularly, calculating unit 3 is also handled the light intensity that is transmitted into the measured light of the optical receiver 21b of the light intensity of light of fiber body 22 and pedestrian detecting device 2 from the optical transmitting set 21a of pedestrian detecting device 2.According to these light intensity that receive, calculating unit 3 calculates the loss that causes light intensity in fiber body 22, has determined whether pedestrian and vehicle collision.Calculating unit 3 can also comprise a computer device, for example can be an ECU, and it is known in the art.
Calculating unit 3 produces a command signal according to the judgement whether performed pedestrian and vehicle bump; by this command signal; pedestrian protection 30 is activated to alleviate and is applied to pedestrian's bump on one's body, thereby improves the safety to the pedestrian in secondary impact.
According to Fig. 5 and 6, the detection principle of pedestrian detecting device is in this embodiment described.
Usually, optical fiber is to be made by core and the clad material with different refractivity.Because the ratio of refraction at the contact surface place of core and clad material is different, so light reflection takes place and transmits (transmission) by optical fiber.The loss of being reflected caused light intensity by light on contact surface is constant.That is to say, be constant if incide the light intensity of the incident light in the optical fiber, and under the situation that optical fiber is maintained fixed, the light intensity of passing fiber optic transmission light also is constant so.
More specifically, as shown in Figure 6, fiber optic light intensity depends on and connects loss that loss, fibre strain cause and owing to disturb other loss that causes or the like, and this connections loss relates to roughness of surface on the end face that reflection, light shine and element orientation or the like.In these losses, the loss that fibre strain causes is the factor that light intensity is had the greatest impact.
If optical fiber is to be out of shape owing to being under pressure, the angle of incidence of passing fiber optic light so just changes with respect to contact surface.If angle of incidence changes, reflect the light intensity loss that causes so and also change.That is to say, allow to calculate caused amount of bow in optical fiber according to measured intensity variations amount by the variable quantity of measuring between the light intensity of transmission light after the light intensity of transmitting light before the fibre strain and the fibre strain in the transmission light before fibre strain.Then, calculating unit 3 just can calculate the force value that is applied on the optical fiber.This just makes the pedestrian detecting device among this embodiment use optical fiber to detect pedestrian institute applied pressure.
Below, will introduce the working process of pedestrian detecting device among the present invention.
In pedestrian detecting device of the present invention, the optical transmitting set 21a that light transmits and receives unit 21 from light shines the end of fiber body 22 of the optical fiber 20 of pedestrian's sensor 2, and the light intensity that the fiber body 22 of optical fiber 20 is transmitted is passed in the optical receiver 21b measurement that light transmits and receives unit 21.
At first, suppose that the vehicle bumper 1 that is installed in vehicle V front portion bumps with the pedestrian.When vehicle bumper 1 bumped with the pedestrian, it is recessed that vehicle bumper 1 just becomes under the effect of pressure, and bumper/spoiler 1 just deforms on the travel direction of vehicle V like this.From the direction of vehicle V, pressure acts on bumper/spoiler cover 13, resorber 12, loading plate 11, optical fiber 20 and the bumper/spoiler strengthening part 10 in order, and then, pressure acts on the front side member Vm of vehicle V.Because bumper/spoiler strengthening part 10 and front side member Vm make with rigid material, so be positioned at the effect that the fwd optical fiber 20 of bumper/spoiler strengthening part 10 just is subjected to imposing on the pressure of bumper/spoiler strengthening part 10.
When this situation took place, pressure acted on the optical fiber 20 by loading plate 11.Owing to there is loading plate 11 just to make the pressure that acts on the vehicle bumper 1 be passed on the optical fiber 20 with having no loss.
The pressure that acts on the optical fiber 20 is oppressed the fiber body 22 of optical fiber 20 by being arranged on fiber body 22 fwd snyed plates 23.Because fiber body 22 is depressed facing to snyed plate 23, so fiber body 22 is deforming in abutting connection with the part place in combining with the projection 230 of snyed plate 23.The distortion of fiber body 22 causes the light intensity by the transmission light of fiber body 22 change (minimizing).That is to say, will be changed by the light intensity that light transmits and receives the transmission light that the optical receiver 21b of unit 21 measures.
Calculating unit 3 can calculate the pressure be applied on the fiber body 22 according to output signal, and this output signal represents to transmit the reduction of the light intensity of light, and it is sent by the optical receiver 21b that light transmits and receives unit 21.Like this, according to the pressure that calculates, calculating unit 3 has judged whether that according to the pressure that is applied on the vehicle bumper 1 pedestrian and vehicle V bump.
When carrying out judgement, calculating unit 3 is used for integral operation is carried out in load (pressure), load is measured by pedestrian's sensor 2, and it is applied on the vehicle bumper 1 by this object when vehicle V and object bump, and accounting equation is [Δ (ft)=m Δ].Then, integrated value is removed by the speed (Δ V) of the vehicle V before just bumping.So just can calculate the quality of the object that bumps with vehicle bumper 1.When this situation takes place,, so just can judge that collision has taken place vehicle V and pedestrian if this quality falls in pedestrian's the scope of body weight value (for example, becoming between the body weight for humans from a child's (6 years old) body weight to).
By using the pedestrian detecting device of present embodiment, just can carry out pedestrian's collision according to said sequence.Pedestrian detecting device in the present embodiment preferably is configured to produce a pedestrian impact signal as command signal when calculating unit 3 judgements bump with the pedestrian, so that make 30 work of pedestrian protecting unit.Command signal can comprise a signal that can start each pedestrian protecting unit 30 selectively.Start in the pedestrian protecting unit 30 selected one can alleviate to the pedestrian's of collision happens injury.Provide command signal not limit to its pedestrian protecting unit 30 is really special from calculating unit 3, it can be included in pedestrian protection well known in the art.
By the pedestrian detecting device in the present embodiment, can be detected by optical fiber with the pedestrian of collision happens, therefore just can prevent the error detection of pedestrian's sensor, and can not have a negative impact electronic product.Pedestrian detecting device does not for example need to adopt the device of electromagnetic screening to block electromagnetic wave in the present embodiment, so can reduce manufacturing cost.That is to say that the advantage of the pedestrian detecting device in the present embodiment is, can reduce manufacturing cost, and can not make electronic product produce faulty operation owing to transmitting and receiving electromagnetic wave.
Though described a preferred embodiment of the present invention in detail, for the person of ordinary skill of the art,, can make various distortion or to the change of details according to the prompting of this specification sheets.Therefore, disclosed ad hoc structure only is exemplary, rather than to the qualification of invention scope, scope of the present invention is determined by subsequently claim scope and equivalent scope thereof.For example, though pedestrian detecting device in the present embodiment is mounted on the front bumper of vehicle, do not limit the rear bumper that pedestrian detecting device in the present embodiment can not be used for vehicle.
Claims (8)
1, a kind of pedestrian detecting device comprises:
Pedestrian's sensor (2), it comprises shock transducer, this shock transducer has optical fiber (20) and a light that is connected on this optical fiber that extends in the front portion of vehicle V and transmits and receives the unit, make when impact effect forwardly the time conduct of generation pass the signal of the function of fiber optic light quantity;
A judging unit (3) judges according to the signal that pedestrian's sensor (2) is produced whether vehicle V bumps with the pedestrian, and produces the signal of this situation of expression.
2, pedestrian detecting device as claimed in claim 1 is characterized in that, vehicle V has at its anterior bumper/spoiler of arranging (1); With
Wherein optical fiber (20) horizontal expansion in the bumper/spoiler of vehicle.
3, pedestrian detecting device as claimed in claim 2 is characterized in that, shock transducer comprises a bumper/spoiler strengthening part (10) on the bumper/spoiler (11) that is installed in vehicle, and it is used for carrying optical fiber (20).
4, pedestrian detecting device as claimed in claim 3 is characterized in that, shock transducer comprises that is arranged on bumper/spoiler strengthening part (a 10) fwd loading plate (11), this loading plate with wherein be provided with fiber optic bumper/spoiler strengthening part certain intervals arranged.
5, pedestrian detecting device as claimed in claim 4 also comprises:
Resorber (12) that is provided with previously at loading plate; With
Be arranged on the bumper/spoiler cover (13) on the front surface of this resorber.
6, pedestrian detecting device as claimed in claim 2, it is characterized in that, shock transducer is included in an impact transference part part (23) that is provided with in the vehicle bumper, it has a plurality of projections related with optical fiber (230) so that impulsive force is passed to optical fiber, make fibre strain, thereby change the light intensity loss of passing fiber optic transmission light.
7, pedestrian detecting device as claimed in claim 1 is characterized in that, described light transmits and receives the unit and comprises:
An optical transmitting set (21a), it is to the end emission light of optical fiber (20); With
An optical receiver (21b), its other end from optical fiber (20) receives transmission light.
8, a kind of method of between vehicle V and pedestrian, colliding that detects, this method comprises:
Optical fiber (20) is set along the front portion of vehicle V and is connected this fiber optic light and transmits and receives the unit, make when impact effect forwardly the time conduct of generation pass the signal of the function of this fiber optic light quantity;
Give the end emission light of this optical fiber (20);
The other end at this optical fiber (20) receives transmission light, to produce a signal; With
Judge according to described signal whether vehicle bumps with the pedestrian, and produce the signal of this situation of expression.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004078960A JP4082692B2 (en) | 2004-03-18 | 2004-03-18 | Pedestrian detection device |
| JP78960/04 | 2004-03-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1757544A true CN1757544A (en) | 2006-04-12 |
| CN100436201C CN100436201C (en) | 2008-11-26 |
Family
ID=35088040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100716582A Expired - Fee Related CN100436201C (en) | 2004-03-18 | 2005-03-18 | Pedestrian detecting device and correlation method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4082692B2 (en) |
| CN (1) | CN100436201C (en) |
| DE (1) | DE102005011389B4 (en) |
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| CN102917921A (en) * | 2010-07-21 | 2013-02-06 | 宝马股份公司 | Method for monitoring a pedestrian detecting device for a vehicle |
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| JP4440896B2 (en) | 2006-02-15 | 2010-03-24 | トヨタ自動車株式会社 | Bumper structure for vehicles |
| JP4726650B2 (en) | 2006-02-24 | 2011-07-20 | 本田技研工業株式会社 | Vehicle sensor module |
| JP2007302060A (en) * | 2006-05-09 | 2007-11-22 | Toyota Motor Corp | Bumper structure for vehicle |
| DE102006027421B3 (en) * | 2006-06-13 | 2007-05-31 | Siemens Ag | Bending sensor manufacturing method for pedestrian protection system of motor vehicle, involves producing fiber core at base cladding, where refractive index of core is larger than that of cladding, and covering core by covering cladding |
| JP5077639B2 (en) | 2006-12-11 | 2012-11-21 | 株式会社デンソー | Pedestrian collision detection device and pedestrian protection system |
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| DE102008022632B4 (en) | 2008-05-08 | 2018-07-26 | Bayerische Motoren Werke Aktiengesellschaft | Sensor device for detecting an impact on a motor vehicle |
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| DE102011055331B4 (en) * | 2011-11-14 | 2015-10-01 | Benteler Automobiltechnik Gmbh | Bumper assembly for a motor vehicle and use of the bumper assembly |
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| DE102015102833B4 (en) * | 2015-02-27 | 2019-10-17 | KMT e.K. | Sensor strip for an impact detection device of a vehicle safety system and method for producing such a sensor strip |
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| US20020063008A1 (en) * | 1997-10-14 | 2002-05-30 | Hans Spies | Accident sensor |
| GB2336704A (en) * | 1998-04-24 | 1999-10-27 | Jaguar Cars | Pedestrian impact sensor system |
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| DE10333735A1 (en) * | 2003-07-23 | 2005-03-03 | Peguform Gmbh & Co. Kg | Sensor device for a safety device in a vehicle |
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2004
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-
2005
- 2005-03-11 DE DE102005011389A patent/DE102005011389B4/en not_active Expired - Fee Related
- 2005-03-18 CN CNB2005100716582A patent/CN100436201C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917921A (en) * | 2010-07-21 | 2013-02-06 | 宝马股份公司 | Method for monitoring a pedestrian detecting device for a vehicle |
| CN102917921B (en) * | 2010-07-21 | 2015-06-24 | 宝马股份公司 | Method for monitoring a pedestrian detecting device for a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4082692B2 (en) | 2008-04-30 |
| DE102005011389A1 (en) | 2005-12-08 |
| CN100436201C (en) | 2008-11-26 |
| JP2005263038A (en) | 2005-09-29 |
| DE102005011389B4 (en) | 2008-02-07 |
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