Patent EP0430813B1 successfully refreshed from Google Patents.
EP0430813B1
Expired / Lapsed
EP
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Safety device for motor vehicles
Assignee: Renault SA
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Filing: 1990-11-30
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Granted: 1993-12-29
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Expires: 2010-11-30
Abstract
No abstract record available.
Inventors
- 👤 Philippe Saint Martin
- 👤 Lionel Guillot
- 👤 Fereydoun Garajedagui
- 👤 Thierry Landreau
- 👤 Bertrand Rochette
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 11:08
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/01; B60R21/013; B60R21/0132; B60R2021/01306; B60R2021/01325; B60R21/02; B60R21/13
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
A safety system for a motor car, comprising means (9) of operating at least one safety device (1) in a situation involving the motor car turning over, characterised in that it comprises a gyrometer (10) measuring the speed of rotation in a roll-over and accelerometers (11, 12, 13) and electronic means (9) of processing the signals from this gyrometer and from the accelerometers in order to actuate the safety device (1).
Claim 2
Dependent Claim
74 words
A system according to Claim 1, characterised in that it comprises processing means (16) for calculating the ratio of transverse acceleration to vertical acceleration and, if this ratio exceeds a predetermined threshold (S₁), for authorising integration of the angular speed of roll-over emanating from the gyrometer (10) during a predetermined period of time and actuating the safety device (1) in the event of the signal resulting from integration exceeding a predetermined threshold value (S₂).
Claim 3
Independent Claim
93 words
A system according to either of the preceding Claims, characterised in that it comprises processing means (14) for calculating an acceleration modulus in the plane of the vehicle on the basis of longitudinal acceleration and transverse acceleration signals from the accelerometers (11, 12) and, if this value exceeds a predetermined threshold (S₄), for authorising integration of the angular speed of roll-over emanating frcm the gyrometer (10) during a predetermined length of time and actuating the safety device (1) in the event of the signal resulting from integration exceeding a predetermined threshold value (S₂).
Claim 4
Independent Claim
31 words
A system according to any one of the preceding Claims, characterised in that operation of the safety system (1) is actuated upon a high level of roll-over speed of the vehicle.
Claim 5
Dependent Claim
52 words
A system according to Claim 1, characterised in that it comprises processing means (14) for calculating an acceleration modulus in the plane of the vehicle on a basis of transverse and longitudinal acceleration signals and of actuating the safety device (1) in the event of this modulus exceeding a predetermined threshold (S₅).
Claim 6
Independent Claim
23 words
A system according to any one of the preceding Claims, characterised in that the safety device (1) is a movable bow-shaped roll bar.
Claim 7
Dependent Claim
35 words
A system according to Claim 6, characterised in that this roll bar (1) is mounted to pivot about a longitudinal spindle (2) in the vehicle and carries hooking means adapted to engaged locking means (4).
Claim 8
Independent Claim
25 words
A system according to either of Claims 6 or 7, characterised in that it comprises two associated bow-shaped roll bars, each associated with one seat.
References Cited (Backward Citations)
No citation records indexed.
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