GB1360360A - Operation recorder for motor vehicle safety device - Google Patents
Operation recorder for motor vehicle safety deviceInfo
- Publication number
- GB1360360A GB1360360A GB5726472A GB5726472A GB1360360A GB 1360360 A GB1360360 A GB 1360360A GB 5726472 A GB5726472 A GB 5726472A GB 5726472 A GB5726472 A GB 5726472A GB 1360360 A GB1360360 A GB 1360360A
- Authority
- GB
- United Kingdom
- Prior art keywords
- collision
- sensor
- bag
- gate
- signals
- 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.)
- Expired
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
- B60R21/017—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including arrangements for providing electric power to safety arrangements or their actuating means, e.g. to pyrotechnic fuses or electro-mechanic valves
- B60R21/0173—Diagnostic or recording means therefor
- B60R21/0176—Diagnostic or recording means therefor for firing circuits using only mechanical switches as collision detecting means, in series with pyrotechnic fuses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
1360360 Crash restraint bag NISSAN MOTOR CO Ltd 12 Dec 1972 [9 Feb 1972] 57264/72 Heading B7B The correct operation of a crash restraint bag is recorded by a memory device 15 fed with signals S4 by a coincidence circuit 13, fed with signals S2 by a collision sensor 10 through a gating circuit 11 and with signals S3 by a sensor 14. The sensor 10 is responsive to a collision condition of a vehicle, e.g. it may be a mass of magnetic material normally abutting a magnet but moved, due to rapid deceleration upon a collision, to engage two contacts. The gating circuit 11 generates a signal S2 of a predetermined time duration of the order of 10 to 100 milliseconds, i.e. longer than the time required for the crash bag to be actuated. The sensor includes comparators 32, 33 connected at points (a) and (b) respectively. When the voltages at points (a) and (b) become 12 and zero respectively, due to destruction of detonation element 21, the comparators 32 produce outputs fed to a NOR gate which applies a true "1" signal S3 to an AND gate. If a true "1" signal is also applied to the AND gate by the gating circuit 11 a true "1" signal is applied to a transistor 41 to burn out an electric fuse 40, thus indicating a malfunction, i.e. operation of the bag prior to collision or at a time greater than a predetermined time after a collision. If on the other hand, correct operation ensues, the signals at the AND gate are not synchronized such that the transistor 41 is not energized. The sensor 14 may alternatively be a pneumatically controlled switch opened and closed in response to pressure in a container for storing pressurized gas, a conductive wire adapted to be broken upon actuation of the safety device, or an electric or mechanical switch capable of sensing expansion of the gas bag.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47014119A JPS5147214B2 (en) | 1972-02-09 | 1972-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1360360A true GB1360360A (en) | 1974-07-17 |
Family
ID=11852219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5726472A Expired GB1360360A (en) | 1972-02-09 | 1972-12-12 | Operation recorder for motor vehicle safety device |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS5147214B2 (en) |
AU (1) | AU446685B2 (en) |
CA (1) | CA1011427A (en) |
DE (1) | DE2302715A1 (en) |
GB (1) | GB1360360A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2130751A (en) * | 1982-10-01 | 1984-06-06 | Fuji Heavy Ind Ltd | Diagnostic system for an internal combustion engine |
GB2198571A (en) * | 1986-11-26 | 1988-06-15 | Breed Automotive Corp | Event sequence indicator for a vehicle crash bag system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2015094B3 (en) * | 1987-03-26 | 1990-08-01 | Siemens Ag | CONNECTION PROVISION TO MANIPULATE A PROTECTION SYSTEM |
JPH045153U (en) * | 1990-04-27 | 1992-01-17 | ||
GB2293681B (en) * | 1994-09-29 | 1998-08-12 | Autoliv Dev | Improvements in or relating to a safety arrangement |
DE19918235B4 (en) * | 1999-04-22 | 2005-08-18 | Daimlerchrysler Ag | Airbag module for a motor vehicle |
-
1972
- 1972-02-09 JP JP47014119A patent/JPS5147214B2/ja not_active Expired
- 1972-12-12 GB GB5726472A patent/GB1360360A/en not_active Expired
- 1972-12-15 AU AU50126/72A patent/AU446685B2/en not_active Expired
-
1973
- 1973-01-19 DE DE19732302715 patent/DE2302715A1/en active Pending
- 1973-02-09 CA CA163,418A patent/CA1011427A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2130751A (en) * | 1982-10-01 | 1984-06-06 | Fuji Heavy Ind Ltd | Diagnostic system for an internal combustion engine |
GB2198571A (en) * | 1986-11-26 | 1988-06-15 | Breed Automotive Corp | Event sequence indicator for a vehicle crash bag system |
GB2198571B (en) * | 1986-11-26 | 1991-01-09 | Breed Automotive Corp | Event sequence indicator |
Also Published As
Publication number | Publication date |
---|---|
JPS4882541A (en) | 1973-11-05 |
DE2302715A1 (en) | 1973-08-30 |
AU446685B2 (en) | 1974-03-28 |
CA1011427A (en) | 1977-05-31 |
AU5012672A (en) | 1974-03-28 |
JPS5147214B2 (en) | 1976-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |