GB2225660A - A trigger circuit arrangement for a vehicle safety device, eg a crash bag - Google Patents
A trigger circuit arrangement for a vehicle safety device, eg a crash bag Download PDFInfo
- Publication number
- GB2225660A GB2225660A GB8828360A GB8828360A GB2225660A GB 2225660 A GB2225660 A GB 2225660A GB 8828360 A GB8828360 A GB 8828360A GB 8828360 A GB8828360 A GB 8828360A GB 2225660 A GB2225660 A GB 2225660A
- Authority
- GB
- United Kingdom
- Prior art keywords
- triggering arrangement
- sensor
- arrangement according
- vehicle
- triggering
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
A safety device in a motor vehicle comprises an air-bag (2) which is triggered in response to a side impact. The triggering arrangement (6) comprises sensors (12-19; S1n, S2n) which respond t o deformation of the skin (5) forming the side of the motor vehicle. The sensors are divided into two groups (12-15, 16-19; S1n, S2n) and at least one sensor in each group must be activated for the air-bag (2) to be inflated. Each sensor may comprise a switch (12-19) which is fromed from a printed circuit board (7) carrying adjacent signal tracks (20, 21; 25, 26) with inter-digitated fingers (22, 23) which can be pressed against a contact pad (11).
Description
"Improvements in or relating to a trigger circuit arrangement"
THE PRESENT INVENTION relates to a trigger circuit arrangement and more particularly relates to a trigger circuit arrangement suitable for use in connection with a safety device mounted on a vehicle intended to be responsive to side impacts. Such a device may be an inflatable bag, such as a so-called "air-bag" although the bag in question may be of a relatively low cubic capacity and may thus be termed an "inflatable side padding".
In connection with safety devices mounted on vehicles it has been proposed before to utilise triggering devices which are responsive to severe deceleration, such as encountered by the vehicle during a front impact, to trigger the safety device. The safety device may be, in such prior art proposals, either an air-bag, which is inflated to provide a cushion to protect a person travelling in the vehicle, or a device such as safety belt pre-tensioner which applies a tension to a safety belt in order to restrain a person firmly in his or her seat within the motor vehicle.
When a motor vehicle is subjected to a front impact, the vehicle decelerates over a period of time, as the crumple-zone which is normally built into the front of the vehicle, deforms. This provides a period of time during which safety devices of the type discussed above can be activated to provide the best prac ticable protection for a person travelling in the motor vehicle.
However, when a motor vehicle is subjected to a side impact, for example when another vehicle fails to stop at a cross-roads or other road junction and impacts into the side of the vehicle with a substantial velocity, there is only a very brief period of time available to activate any safety devices if they are to be of any value.
Since the side of a motor vehicle is, generally speaking, not very strong, when a vehicle is subjected to a side impact, there is only a very brief period of time between the commencement of the accident and the time at which the side of the motor vehicle is so severely deformed that the driver or passenger of the motor vehicle is injured.
It is not practicable to utilise conventional inertia devices to detect a side impact if the response to the side impact is going to be sufficiently swift to be of value. By the time a conventional inertia device has responded to a side impact of any severity, the driver or passenger within the vehicle will probably have suffered severe injuries.
The present invention thus seeks to provide a trigger circuit which will provide a very swift response to a side impact.
According to one aspect of this invention there is provided a triggering arrangement for a safety device in a motor vehicle adapted to be responsive to a side impact, said triggering arrangement comprising at least one sensor located to respond to deformation of the skin forming the side of the motor vehicle, the sensor being adapted to actuate the safety device.
According to another aspect of this invention there is provided a triggering arrangement for activating a safety device in a vehicle and adapted to respond to a side impact of the vehicle, said triggering arrangement comprising a plurality of sensors divided into two groups of sensors, each group comprising one or more sensors, the triggering arrangement adapted to respond when at least one sensor from each group is activated, each sensor being adapted to be activated in response to a side impact on the motor vehicle.
Conveniently each sensor is adapted to respond to deformation of the skin forming the side of the vehicle.
Preferably the triggering arrangement is adapted to trigger an inflatable air-bag or inflatable padding which is mounted on a vehicle door.
Advantageously the or each sensor is mounted on a reinforcement bar mounted in a motor vehicle door.
Preferably the or each sensor is in the form of an electric switch.
Preferably each sensor is a piezo-electric sensor.
Preferably the switch comprises a laminate structure comprising means supporting a conductive surface and, spaced therefrom, a flexible or deformable printed circuit element carrying adjacent conductive areas forming parts of discrete signal tracks, such that on deformation of the printed cirucit board the areas of track are both brought into contact with said conductive region.
Conveniently one group of sensors is connected between an igniter for an air-bag or the like and the chassis of a vehicle and the other group of sensors is connected between the air-bag and the battery of the vehicle.
According to another aspect of this invention there is provided a triggering arrangement for activating a safety device in a motor vehicle, said triggering arrangement incorporating at least one switch, said switch comprising means supporting a conductive surface and, spaced therefrom, a flexible or deformable printed circuit element carrying adjacent conductive areas forming parts of discrete signal tracks, such that on deformation of the printed circuit board the said areas of track are both brought into contact with said conductive region.
Preferably each signal track defines a plurality of fingers, the fingers of the two signal tracks being inter-digitated.
Conveniently the flexible printed circuit board carries a plurality of said switches, the switches forming two discrete groups of switches, each group of switches being connected in parallel between two respective signal tracks.
The invention also relates to a triggering arrangement according to any one of the proceeding
Claims in combination with an air-bag or inflatable padding.
In order that the invention may be more readily understood, and so that further features thereof may be appreciated, the invention will now be described, by way of example, with reference to the accompanying drawings in which
FIGURE 1 is a horizontal sectional view of a car door incorporating a trigger circuit in accordance with the invention,
FIGURE 2 is a vertical sectional view of the door of Figure 1,
FIGURE 3 is a view of a printed circuit board forming part of the triggering circuit of Figures 1 and 2,
FIGURE 0 is an enlarged view of part of the circuit board of Figure 3,
FIGURE 5 is a cross-seetional view through the circuit board and an associated cirucit board arrangement forming part of the triggering circuit,
FIGURE 5 is an elevational view of the parts of the triggering circuit as shown in Figure 5 other than the printed circuit board of Figure Lt, FIGURE 7 is an equivalent circuit diagram of the arrangement of Figures 1 to 6, and
FIGURE 8 is an alternative circuit diagram.
Referring initially to Figures 1 and 2 of the drawings, a door 1 of a motor vehicle such as a motor car is illustrated. Contained within the door, under ordinarly circumstances, is an inflatable air-bag or inflatable padding 2, but in the accompanying drawings the air-bag or patJing is shown In the inflated condition.
Associated with the inflatable air-bag or padding is a gas generator 3. The gas generator contains a charge which is ignited electrically to produce, in a very brief period of time, a significant volume of gas which serves to inflate the bag to have the condition illustrated in Figures 1 and 2.
Contained within the door 1 is a horizontally extending re-inforcing bar 4 and mounted on the side of the re-inforcing bar 4 which faces the outer skin 5 of the door is a triggering switch arrangement 6 which will be described with reference to Figures 3 to 6.
The triggering arrangement 6 incorporates a laminate structure comprising an outer flexible printed circuit board 7, which is illustrated in Figures 3 and 4, a central insulating panel 8 provided with a plur- ality of apertures 9 therein and a rear board 10 provided with selected areas of electrically conductive coating 11 thereon. The electrically conductive areas 11 are of rectangular form and are substantially aligned with the apertures 9.
Returning to Figures 3 and 4 the elongate printed circuit board 7 carries thereon a metalised pattern which defines a first series of switch elements 12,13,14,15 and a second series of switch elements 16,17,18,19. The switch element 13 is shown on an enlarged scale in Figure 4.
The switch element 13 effectively comprises two conductive paths or tracks 20,21 formed on the printed circuit board, these paths or tracks within the operative area of the switch defining a plurality of inter-digitated fingers 22,23. The fingers 22 all form part of the track 20 and the fingers 23 all form part of the track 21. The area of the track in which the inter digitated fingers are present is aligned with the aperture 9 formed in the insulating panel of the laminated structure and as can be seen from Figure 5 the region of the inter-digitated fingers is thus opposed to the conductive area 11 (which is an isolated area and which is not in contact with any other conductive element) but is spaced therefrom by an air gap 24.It will thus be appreciated that if the region of the printed circuit board 7 which carries the inter-digitated fingers 22 and 23 is deformed so that those fingers are brought into contact with the region of metalisation 11 exposed through the aperture 9, then an electrical contact will be created between the signal tracks 20 and 21.
It can be seen that the region of the printed circuit board 7 which comprises the switching element 13 also includes two further signal tracks 25 and 26. As can be seen from Figure 3 these signals tracks extend past the switching element 13 and extend to another switching element 17 which is of identical construction.
The printed circuit board of Figure 7 thus presents two signals tracks 20,21 which are associated with four switching elements 12,13,14 and 15 and also carries two signal tracks 25,26 which are associated with four switching elements 16,17,18 and 19. If any one of the switching elements 12,13,14 or 15 is activated a short circuit will exist between the signal tracks 20 and 21 and similarly if any one of the switching elements 16,17,18 and 19 is activated a short circuit will exist between the switching elements 25 and 26.
It will be appreciated that whilst the printed circuit board 7 has been shown as carrying eight switching elements, the circuit board 11 could be made longer and could incorporate a greater number of switching elements.
It is envisaged that the switching elements illustrated in Figure 3 will be connected electrically to a squib 27, which acts an igniter to the charge present in the gas generator 3 in the manner illustrated in Figure 7. Thus one signal track 20 is connected to the battery 28 of the motor vehicle, whereas the other track 21 is connected to the igniter 27. The tracks 20 and 21 are effectively inter-connected by the switching elements 12,13 etc., which can act in the manner of independently operating switches. Similarly the signal track 25 is connected to the body or chassis of the motor vehicle, whereas the signal track 26 is connected to the squib or igniter 27. Again the signal tracks 25 and 26 are inter-connected by means of the switching elements 16,17 etc. which can again act as independently operating switches.
It will be observed, from Figure 7, that the igniter 27 will be ignited when one of the switches 12,13 etc. is closed and when simultaneously one of the switches 16,17 etc. is closed. However, under normal circumstances the igniter 27 is totally electrically isolated. Thus in normal circumstances the igniter is not electrically connected to the chassis of the vehicle, and is not electrically connected to the battery of the vehicle. Thus the risk of the igniter being inadvertently activated is minimised.
In the event of a side impact arising the outer skin 5 of the door will be deformed inwardly. When the skin has been deformed inwardly by a sufficient extent to touch the triggering circuit 6 mounted on the re-inforcing bar X, with sufficient force to deform the flexible printed circuit board 7 in the region of two separate switching elements, one of the switching elements belonging to the series of switching elements 12,13,1h,15 and the other switching element belonging to the series 16,17,18 and 19, then the air-bag or inflatable side padding 2 is rapidly inflated.
It is to be appreciated that since two switching elements must be actuated there is only a minimal chance of the air-bag being inflated accidentally or inadvertently.
Whilst the invention has been described with reference to one embodiment it is to be appreciated that modifications may be effected without departing from the scope of the invention. It is to be appreciated that a plurality of sensors may be provided, comprising a first group of sensors designated as sensors S11, S12".' S1N' and also a second group of sensors designated as S21 S22..., S2N. The sensors of the first group of switches may be connected to an OR-gate 28 as shown in Figure 8 and the sensors of the second set may be connected to an
OR-gate 29 as shown in Figure 8. Thus if any one of the sensors of the first group provides a signal the
OR-gate 28 will pass a logic "1" whereas if any one of the second group of sensors provides a signal the
OR-gate 29 will pass a logic "1". The sensors may comprise switches, or other devices such as piezo-electric sensors which generate a voltage when compressed.
The outputs of the logic gates 28 and 29 are connected to an AND-gate 30 which will only pass a logic "1" when both the inputs to the AND-gate each simultaneously carry a logic "1". The output of the
AND-gate 30 is connected to a switch such as a transistor switch 31 which is connected in series with the squib or igniter 27 between the battery 28 and the chassis of the motor vehicle. Thus, in such an embodiment if two sensors are both activated simultaneously, the sensors being selected from different groups of sensors, then the squib is triggered and the air-bag becomes inflated.
Whilst this embodiment of the invention has been described with reference to an electronic logic arrangement it is to be appreciated that in an alternative embodiment of the invention the sensors and the logic may, for example, be fluidic, providing an output which is capable of triggering the squib 27.
Claims (10)
1. A triggering arrangement for a safety device in a motor vehicle adapted to be responsive to a side impact, said triggering arrangement comprising at least one sensor located to respond to deformation of the skin forming the side of the motor vehicle, the sensor being adapted to actuate the safety device.
2. A triggering arrangement for activating a safety device in a vehicle and adapted to respond to a side impact of the vehicle, sajA triggering arrangement comprising a plurality of sensors divided into two groups of sensors, each group comprising one or more sensors, the triggering arrangement adapted to respond when at least one sensor frrg each group is activated, each sensor being adapted to be activated in response to a side impact on the motor vehicle.
3. A triggering arr-ngement according to Claim 2 wherein each sensor is adapted to respond to deformation of the skin forming the ie of the vehicle.
4. A triggering arrangement according to any one of the preceding Claims wherein the triggering arrangement is adapted to trigger an inflatable air-bag or inflatable padding which is mounted on a vehicle door.
5. A triggering arrangement according to any one of the preceding Clims wherein the or each sensor is mounted on a reinforcement bar mounted in a motor vehicle door.
6. A triggering arrangement according to any one of the preceding Claims wherein the or each sensor is in the form of an electric switch.
7. A triggering arrangement according to any one of Claims 1 to 6 wherein each sensor is a piezo-electric sensor.
8. A triggering arrangement according to Claim 6 wherein the switch comprises a laminate structure comprising means supporting a conductive surface and, spaced therefrom, a flexible or deformable printed circuit element carrying adjacent conductive areas forming parts of discrete signal tracks, such that on deformation of the printed cirucit board the areas of track are both brought into contact with said conductive region.
9. A triggering arrangement according to Claim 6 or 8 wherein one group of sensors is connected between an ingniter for an air-bag or the like and the chassis of a vehicle and the other group of sensors is connected between the air-bag and the battery of the vehicle.
10. A triggering arrangement according to any one of the proceeding Claims in combination with an air-bag or inflatable padding.
10. A triggering arrangement for activating a safety device in a motor vehicle, said triggering arrangement incorporating at least one switch, said switch comprising means supporting a conductive surface and, spaced therefrom, a flexible or deformable printed circuit element carrying adjacent conductive areas forming parts of discrete signal tracks, such that on deformation of the printed circuit board the said areas of track are both brought into contact with said conductive region.
11. A triggering arrangement according to Claim 8,
Claim 9 when dependent on Claim 8, or Claim 10 wherein each signal track defines a plurality of fingers, the fingers of the two signal tracks being inter-digitated.
12. A triggering arrangement according to Claim 8,
Claim 9 when dependent on Claim 8, Claim 10 or 11 wherein the flexible printed circuit board carries a plurality of said switches, the switches forming two discrete groups of switches, each group of switches being connected in parallel between two respective signal tracks.
13. A triggering arrangement for a safety device substantially as herein described with reference to and as shown in the accompanying drawings.
14. A triggering arrangement according to any one of the proceeding Claims in combination with an air-bag or inflatable padding.
15. Any novel feature or combination of features disclosed herein.
Amendments to the claims have been filed as follows
1. A triggering arrangement for activating a safety device in a vehicle and adapted to respond to a side impact of the vehicle, said triggering arrangement comprising a plurality of sensors divided into two groups of sensors, each group comprising one or more sensors, the triggering arrangement adapted to respond when at least one sensor from each group is activated, each sensor being adapted to be activated in response to a side impact on the motor vehicle.
2. A triggering arrangement according to Claim 1 wherein each sensor is adapted to respond to deformation of the skin forming the side of the vehicle.
3. A triggering arrangement according to any one of the preceding Claims wherein the triggering arrangement is adapted to trigger an inflatable air-bag or inflatable padding which is mounted on a vehicle door.
4. A triggering arrangement according to any one of the preceding Claims wherein the or each sensor is mounted on a reinforcement bar mounted in a motor vehicle door.
5. A triggering arrangement according to any one of the preceding Claims wherein the or each sensor is in the form of an electric switch.
6. A triggering arrangement according to any one of Claims 1 to 4 wherein each sensor is a piezo-electric sensor.
7. A triggering arrangement according to Claim 5 wherein the switch comprises a laminate structure comprising means supporting a conductive surface and, spaced therefrom, a flexible or deformable printed circuit element carrying adjacent conductive areas forming parts of discrete signal tracks, such that on deformation of the printed cirucit board the areas of track are both brought into contact with said conductive region.
8. A triggering arrangement according to Claim 5 or 7 wherein one group of sensors is connected between an ingniter for an air-bag or the like and the chassis of a vehicle and the other group of sensors is connected between the air-bag and the battery of the vehicle.
9. A triggering arrangement for a safety device substantially as herein described with reference to and as shown in the accompanying drawings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8828360A GB2225660A (en) | 1988-12-05 | 1988-12-05 | A trigger circuit arrangement for a vehicle safety device, eg a crash bag |
| PCT/SE1989/000708 WO1990006247A1 (en) | 1988-12-05 | 1989-12-04 | A trigger circuit arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8828360A GB2225660A (en) | 1988-12-05 | 1988-12-05 | A trigger circuit arrangement for a vehicle safety device, eg a crash bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8828360D0 GB8828360D0 (en) | 1989-01-05 |
| GB2225660A true GB2225660A (en) | 1990-06-06 |
Family
ID=10647976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8828360A Withdrawn GB2225660A (en) | 1988-12-05 | 1988-12-05 | A trigger circuit arrangement for a vehicle safety device, eg a crash bag |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2225660A (en) |
| WO (1) | WO1990006247A1 (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993001071A1 (en) * | 1991-07-09 | 1993-01-21 | Automotive Technologies International, Inc. | Improved tape switch crush sensor |
| US5231253A (en) * | 1989-02-23 | 1993-07-27 | Automotive Technologies, International | Side impact sensors |
| US5277441A (en) * | 1991-02-25 | 1994-01-11 | Volkswagen Ag | Airbag-equipped side restraint for a motor vehicle passenger |
| US5281780A (en) * | 1991-02-27 | 1994-01-25 | General Engineering (Netherlands) B.V. | Impact detector |
| US5307896A (en) * | 1991-08-13 | 1994-05-03 | Nippondenso Co., Ltd. | Collision detection sensor |
| US5335749A (en) * | 1991-08-13 | 1994-08-09 | Nippondenso Co., Ltd. | Crash sensor |
| US5392024A (en) * | 1991-06-14 | 1995-02-21 | Toyota Jidosha Kabushiki Kaisha | Collision detection system |
| US5437471A (en) * | 1992-11-04 | 1995-08-01 | Takata Corporation | Inflator with starter for side collision air bag device |
| US5441301A (en) * | 1991-07-09 | 1995-08-15 | Automotive Technologies International, Inc. | Crush sensing vehicle crash sensor |
| GB2307346A (en) * | 1995-11-15 | 1997-05-21 | Christopher Mcglone | Detector for a garment |
| US5645136A (en) * | 1994-09-28 | 1997-07-08 | Daewoo Electronics Co., Ltd. | Device for operating a side airbag |
| EP0775613A3 (en) * | 1995-11-22 | 1998-11-11 | Morton International, Inc. | Vehicle deformation collision sensor |
| GB2335310A (en) * | 1998-03-11 | 1999-09-15 | Draftex Ind Ltd | A force-responsive sensor |
| EP0891898B1 (en) * | 1997-07-18 | 2002-11-06 | I.E.E. International Electronics & Engineering S.à.r.l. | Method and apparatus for recording various parameters of a person seat on a support |
| US6685218B1 (en) * | 1993-09-16 | 2004-02-03 | Automotive Technologies International, Inc. | Side impact sensors and airbag system |
| EP1715350A1 (en) * | 2005-04-20 | 2006-10-25 | IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. | Impact sensor system for pedestrian protection |
| DE4204280B4 (en) * | 1991-02-25 | 2007-01-18 | Volkswagen Ag | Airbag equipped side protection for a motor vehicle occupant |
| USRE39868E1 (en) | 1993-09-16 | 2007-10-09 | Automotive Technologies International, Inc. | Self-contained airbag system |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2671525B1 (en) * | 1991-01-16 | 1995-06-09 | Jaeger | IMPACT DETECTION DEVICE ON MOTOR VEHICLES. |
| JP2876363B2 (en) * | 1991-09-11 | 1999-03-31 | トヨタ自動車株式会社 | Side impact sensor system for side airbag device |
| DE4137976A1 (en) * | 1991-11-19 | 1993-05-27 | Kolbenschmidt Ag | SENSOR FOR A GAS BAG IMPACT PROTECTION UNIT |
| US5623246A (en) * | 1992-04-16 | 1997-04-22 | Autoliv Development Ab | Vehicle impact sensor arrangement for detecting a side impact |
| GB2266075B (en) * | 1992-04-16 | 1995-08-16 | Autoliv Dev | Improvements in or relating to a vehicle impact sensor arrangement |
| JP3085026B2 (en) * | 1992-06-22 | 2000-09-04 | トヨタ自動車株式会社 | Operation control device for vehicle airbag device |
| DE4237404A1 (en) * | 1992-11-05 | 1994-05-11 | Base Ten Systems Electronics G | Vehicle side airbag trigger control - involves measuring degree and rate of deformation of strut or plate using pref. electric strain gauge |
| DE4308353C1 (en) * | 1993-03-16 | 1994-08-25 | Siemens Ag | Sensor, which can be mounted on a vehicle, for detecting a mechanical change in shape |
| US5524924A (en) * | 1993-11-15 | 1996-06-11 | Trw Vehicle Safety Systems Inc. | Method and apparatus for restraining an occupant of a vehicle upon a side impact against the vehicle |
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Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231253A (en) * | 1989-02-23 | 1993-07-27 | Automotive Technologies, International | Side impact sensors |
| US5277441A (en) * | 1991-02-25 | 1994-01-11 | Volkswagen Ag | Airbag-equipped side restraint for a motor vehicle passenger |
| DE4204280B4 (en) * | 1991-02-25 | 2007-01-18 | Volkswagen Ag | Airbag equipped side protection for a motor vehicle occupant |
| US5281780A (en) * | 1991-02-27 | 1994-01-25 | General Engineering (Netherlands) B.V. | Impact detector |
| DE4201822B4 (en) * | 1991-02-27 | 2005-03-24 | General Engineering (Netherlands) B.V. | System for detecting a side impact on a motor vehicle |
| GB2253595B (en) * | 1991-02-27 | 1994-11-16 | Autoliv Dev | Improvements in or relating to an impact detector |
| US5392024A (en) * | 1991-06-14 | 1995-02-21 | Toyota Jidosha Kabushiki Kaisha | Collision detection system |
| US6009970A (en) * | 1991-07-09 | 2000-01-04 | Automotive Technologies Int'l., Inc. | Tape switch crush sensor |
| US5441301A (en) * | 1991-07-09 | 1995-08-15 | Automotive Technologies International, Inc. | Crush sensing vehicle crash sensor |
| WO1993001071A1 (en) * | 1991-07-09 | 1993-01-21 | Automotive Technologies International, Inc. | Improved tape switch crush sensor |
| US5307896A (en) * | 1991-08-13 | 1994-05-03 | Nippondenso Co., Ltd. | Collision detection sensor |
| US5335749A (en) * | 1991-08-13 | 1994-08-09 | Nippondenso Co., Ltd. | Crash sensor |
| US5437471A (en) * | 1992-11-04 | 1995-08-01 | Takata Corporation | Inflator with starter for side collision air bag device |
| US7052038B2 (en) | 1993-09-16 | 2006-05-30 | Automotive Technologies International Inc. | Side impact sensor systems |
| US7070202B2 (en) | 1993-09-16 | 2006-07-04 | Automotive Technologies International, Inc. | Side impact sensor systems |
| US7025379B2 (en) | 1993-09-16 | 2006-04-11 | Automotive Technologies International, Inc. | Side impact sensor systems |
| USRE39868E1 (en) | 1993-09-16 | 2007-10-09 | Automotive Technologies International, Inc. | Self-contained airbag system |
| US6685218B1 (en) * | 1993-09-16 | 2004-02-03 | Automotive Technologies International, Inc. | Side impact sensors and airbag system |
| US5645136A (en) * | 1994-09-28 | 1997-07-08 | Daewoo Electronics Co., Ltd. | Device for operating a side airbag |
| GB2307346B (en) * | 1995-11-15 | 2000-04-19 | Christopher Mcglone | Detector arrangement |
| GB2307346A (en) * | 1995-11-15 | 1997-05-21 | Christopher Mcglone | Detector for a garment |
| EP0775613A3 (en) * | 1995-11-22 | 1998-11-11 | Morton International, Inc. | Vehicle deformation collision sensor |
| EP0891898B1 (en) * | 1997-07-18 | 2002-11-06 | I.E.E. International Electronics & Engineering S.à.r.l. | Method and apparatus for recording various parameters of a person seat on a support |
| GB2335310A (en) * | 1998-03-11 | 1999-09-15 | Draftex Ind Ltd | A force-responsive sensor |
| US6571511B1 (en) | 1998-03-11 | 2003-06-03 | Draftex Industries Limited | Force-responsive detectors and systems and methods of making them |
| GB2335310B (en) * | 1998-03-11 | 2001-09-19 | Draftex Ind Ltd | Force-responsive detectors and systems |
| EP1715350A1 (en) * | 2005-04-20 | 2006-10-25 | IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A. | Impact sensor system for pedestrian protection |
| WO2006111558A1 (en) * | 2005-04-20 | 2006-10-26 | Iee International Electronics & Engineering S.A. | Impact sensor system for pedestrian protection |
| US7543474B2 (en) | 2005-04-20 | 2009-06-09 | Ike International Electronics & Engineering S.A. | Impact sensor system for pedestrian protection |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1990006247A1 (en) | 1990-06-14 |
| GB8828360D0 (en) | 1989-01-05 |
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| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |