WO2008041686A1 - Détecteur de fracture de porte en cas de collision latérale - Google Patents

Détecteur de fracture de porte en cas de collision latérale Download PDF

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Publication number
WO2008041686A1
WO2008041686A1 PCT/JP2007/069230 JP2007069230W WO2008041686A1 WO 2008041686 A1 WO2008041686 A1 WO 2008041686A1 JP 2007069230 W JP2007069230 W JP 2007069230W WO 2008041686 A1 WO2008041686 A1 WO 2008041686A1
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WO
WIPO (PCT)
Prior art keywords
door
collision
collapse
pressure sensor
value
Prior art date
Application number
PCT/JP2007/069230
Other languages
English (en)
Japanese (ja)
Inventor
Takashi Satou
Tooru Oowada
Original Assignee
Calsonic Kansei Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Calsonic Kansei Corporation filed Critical Calsonic Kansei Corporation
Publication of WO2008041686A1 publication Critical patent/WO2008041686A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0136—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to actual contact with an obstacle, e.g. to vehicle deformation, bumper displacement or bumper velocity relative to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R2021/0002—Type of accident
    • B60R2021/0006—Lateral collision

Definitions

  • the present invention relates to a door crush detection device that detects crushing of a door that hinders detection of a side collision in a system that activates an airbag by detecting a side collision at the time of a vehicle side collision. Belongs to the technical field.
  • a pressure sensor that detects pressure is arranged in a vehicle door panel, and a pressure change of a predetermined value or more due to a door collapse at the time of a collision. Is detected, the airbag is allowed to be deployed (see, for example, Patent Document 1).
  • Patent Document 1 Japanese Patent Application Laid-Open No. 5-66228 (page 2-3, full view)
  • the present invention has been made paying attention to the above-mentioned problems.
  • the purpose of the present invention is to make the driver recognize that repair is necessary after a side collision has occurred, and the side collision will occur again.
  • An object of the present invention is to provide a door crush detection device at the time of a side collision capable of detecting a door crush that may cause an abnormality in the occupant protection device so that the occupant protection device can exhibit its performance even if it is produced.
  • the vehicle is disposed on a door on the side of the vehicle, and the collision is pressure-treated.
  • a pressure sensor that is detected by a change, and a door crush determining unit that determines whether door crushing has occurred by comparing a detection value of the pressure sensor with a preset door crushing threshold value.
  • FIG. 1 is a diagram showing a block configuration of a part that controls a collision on a vehicle side surface of an occupant protection control device 1 integrated with a door crush detection device at the time of a side collision according to Embodiment 1 of the present invention. .
  • FIG. 2 is a time chart of determination control for a collision on the vehicle side surface of the occupant protection control device integrated with the door crushing detection device at the time of a side collision according to the first embodiment.
  • FIG. 1 is a block diagram of a portion of the occupant protection control device 1 that is integrated with a door crush detection device at the time of a side collision according to the first embodiment that controls a vehicle side collision.
  • the occupant protection control device 1 is provided with a pressure sensor 2 that detects vehicle side door collapse, a control unit 3, a side airbag deployment drive circuit 4, and a door collapse warning drive circuit 5 as main components.
  • the pressure sensor 2 is, for example, a sensor that detects the pressure in a region sealed by an outer panel and an inner panel in a door on the side of the vehicle. As a result, the pressure sensor 2 detects collapse due to the collision of the vehicle side door.
  • the control unit 3 In response to an input from the pressure sensor 2, the control unit 3 performs a deployment determination of a side airbag (not shown) and outputs a determination result. Also, the pressure sensor 2, a side airbag, etc. due to a door crush This is a warning that requires the inspection.
  • the side airbag deployment drive circuit 4 operates the side airbag according to the deployment determination result from the control unit 3.
  • the door crushing warning drive circuit 5 issues a warning to prompt repair if the pressure sensor 2 on the side of the vehicle door or the side airbag is checked.
  • control unit 3 that performs control on the side of the vehicle.
  • the control unit 3 includes a low-pass filter unit (LPF unit) 31, a collision determination calculation unit 32, a collision determination threshold output unit 33, a comparator 34, a door collapse determination threshold output unit 35, and a comparator 36. is doing.
  • LPF unit low-pass filter unit
  • the LPF unit 31 performs signal processing that allows only low-frequency components to pass through so as to remove noise and the like of the detection signal from the pressure sensor 2.
  • the collision determination calculation unit 32 calculates a pressure value for deployment determination from the signal of the pressure sensor 2 that has passed through the LPF unit 31, and outputs the pressure value to the first comparator 34 and the second comparator 35.
  • the collision determination threshold value output unit 33 stores in advance a threshold value for determining whether or not a collision as a deployment determination has occurred, and outputs the threshold value to the first comparator 34.
  • the first comparator 34 compares the pressure detection value of the pressure sensor 2 with a threshold value for collision determination. If the pressure detection value exceeds the collision determination threshold value, the first comparator 34 determines that a collision has occurred, and the air knock Output that expands.
  • the door collapse determination threshold output unit 35 stores a threshold for determining door collapse and outputs the threshold to the second comparator 36.
  • the second comparator 36 compares the pressure detection value of the pressure sensor 2 with the threshold value for door collapse determination. If the pressure detection value exceeds the threshold value, the second comparator 36 determines that door collapse has occurred, and Output to give a crush warning.
  • the pressure sensor 2 detects the pressure in the sealed space at the door on the side of the vehicle or the pressure in the sealed space provided on the side of the vehicle.
  • FIG. 2 is a time chart of determination control for a collision with the vehicle side surface of the occupant protection control device 1 integrated with the door collapse detection device of the first embodiment.
  • this pressure detection value is compared with the collision judgment threshold value by the first comparator 34, and the pressure detection value is detected as shown in the example of the relationship between the collision judgment threshold value 20 and the pressure detection value 10 in FIG.
  • the value exceeds the threshold 20 for collision determination it is determined as a collision, and an output for deploying the airbag is sent from the first comparator 34 to the side airbag deployment drive circuit 4.
  • This deployment determination may be made based on both determinations with other acceleration sensors (not shown).
  • the collision judgment threshold 20 for causing the airbag to be deployed when the pressure detection value is judged to be a collision. If it does not reach 20, it will not be judged as a collision, and the airbag will not be deployed, but in this case, the door will collapse due to a side collision, and the force generated after that will not be detected. There is a possibility that a shock is caused to the pressure sensor 2 etc.
  • the occupant protection control device 1 when the example shown in the relationship between the collision determination threshold 20 and the pressure detection value 11 in FIG. If it is smaller than the threshold 20 and exceeds the threshold value 30 for determining whether the door is crushed, it is determined that the door has been crushed.
  • the threshold value 30 for determining whether or not the door is crushed is set to such a size that the door may be crushed and the pressure sensor 2 or the like may break down.
  • a warning message for prompting is given by the door collapse warning drive circuit 5 using the output of the comparator 36.
  • the control device can be activated.
  • the occupant protection device for the vehicle should be free from defects in the parts and functions damaged by the impact of the collision. After inspection, it is desirable to use the vehicle.
  • the threshold value for determining the detection value of the pressure sensor 2 that detects a vehicle side collision by a change in pressure is set as the collision value.
  • a threshold value 30 for determining the door crushing is set to detect the occurrence of a collision (door crushing) that damages the sensor or the device even if the judgment threshold value 20 is small.
  • the threshold value 30 for determining whether the door is crushed and the pressure detection value 12 is set so that the door is not crushed due to a pressure change in the pressure detection value caused by closing the door or sounding the speaker. Set 30. This prevents warnings from being displayed when not needed.
  • a pressure sensor 2 that is disposed on a door on the side of the vehicle and detects a collision based on a pressure change, and a detection value of the pressure sensor 2 is compared with a preset threshold value 30 for determining whether the door is crushed. Since the door collapse determination threshold value output unit 35 and the second comparator 36 for determining whether or not a collapse occurs has occurred, the occupant protection device 1 can be operated even if a side collision occurs again after a side collision occurs. The performance can be demonstrated.
  • the door crushing detection device at the time of a side collision described in (1) is based on a comparison between the detection value of the pressure sensor 2 and the failure determination threshold value 20 for performing the deployment of the air knob.
  • Side airbag Collision judgment threshold value output unit 33 for performing deployment judgment and first comparator 34 are provided integrally, and threshold value 30 for door collapse judgment is other than a collision event smaller than threshold value 20 for judgment of side airbag deployment judgment. Because it is set to be larger than the pressure change value of the door, when it is not necessary, such as closing the door or sounding the speaker, the door collapse warning is not issued and the door collapse warning can be issued more reliably. .
  • the device for detecting a collapse of a door at the time of a side collision has been described based on the first embodiment. 1S
  • the specific configuration is not limited to these embodiments, and the claims are not limited to these embodiments. Design changes and additions are permitted without departing from the scope of the invention.
  • the pressure sensor is a force that detects the pressure change due to the collision of the sealed air at the door part. It may be a measuring part of another vehicle, for example, a body part close to the front and rear wheels. It may be a pressure change due to deformation at the time of collision of a vehicle member.
  • the occupant protection control device configured integrally with the door crushing detection device is a force S that makes a deployment determination from the detection value of the pressure sensor, and performs an AND determination or an OR determination with the acceleration sensor. May be! /

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air Bags (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

L'invention se rapporte à un détecteur de fracture de porte en cas de collision latérale, qui permet à un dispositif de protection d'un occupant du véhicule d'assurer sa fonction même si une collision latérale se produit à nouveau après une survenue de la collision latérale. Selon l'invention, le détecteur de fracture de porte en cas de collision latérale comprend un capteur de pression (2) qui est installé dans la porte d'une partie latérale d'un véhicule et détecte la collision par un changement de pression, une section de sortie de valeur de seuil de détermination de fracture de porte (35) pour déterminer la survenue de la fracture de la porte en comparant la valeur détectée du capteur de pression (2) à une valeur de seuil préalablement définie, et un comparateur (36), et ce détecteur émet un avertissement quand la survenue de la fracture de la porte est déterminée.
PCT/JP2007/069230 2006-10-02 2007-10-02 Détecteur de fracture de porte en cas de collision latérale WO2008041686A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-270840 2006-10-02
JP2006270840A JP2008087629A (ja) 2006-10-02 2006-10-02 側面衝突時のドア潰れ検出装置

Publications (1)

Publication Number Publication Date
WO2008041686A1 true WO2008041686A1 (fr) 2008-04-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/069230 WO2008041686A1 (fr) 2006-10-02 2007-10-02 Détecteur de fracture de porte en cas de collision latérale

Country Status (2)

Country Link
JP (1) JP2008087629A (fr)
WO (1) WO2008041686A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010155499A (ja) 2008-12-26 2010-07-15 Takata Corp 車両衝突検出装置、乗員拘束システム、車両

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168545A (ja) * 1987-12-23 1989-07-04 Honda Motor Co Ltd 車両の衝突検知装置
JP2006232126A (ja) * 2005-02-25 2006-09-07 Denso Corp 乗員保護装置の起動装置
JP2006240453A (ja) * 2005-03-02 2006-09-14 Daihatsu Motor Co Ltd センサ異常検出装置及びセンサ異常検出方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01168545A (ja) * 1987-12-23 1989-07-04 Honda Motor Co Ltd 車両の衝突検知装置
JP2006232126A (ja) * 2005-02-25 2006-09-07 Denso Corp 乗員保護装置の起動装置
JP2006240453A (ja) * 2005-03-02 2006-09-14 Daihatsu Motor Co Ltd センサ異常検出装置及びセンサ異常検出方法

Also Published As

Publication number Publication date
JP2008087629A (ja) 2008-04-17

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