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1. WO1996006418 - METHOD AND SYSTEM FOR DETECTING VEHICLE ROLL-OVER

Publication Number WO/1996/006418
Publication Date 29.02.1996
International Application No. PCT/US1995/010274
International Filing Date 11.08.1995
Chapter 2 Demand Filed 21.03.1996
IPC
B60G 17/016 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
17Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
015the regulating means comprising electric or electronic elements
016characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
B60G 17/019 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
17Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
015the regulating means comprising electric or electronic elements
019characterised by the type of sensor or the arrangement thereof
B60R 21/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
21Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
B60R 21/01 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
21Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
01Electrical circuits for triggering safety arrangements in case of vehicle accidents or impending vehicle accidents
CPC
B60G 17/0162
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
17Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
015the regulating means comprising electric or electronic elements
016characterised by their responsiveness, when the vehicle is travelling, to specific motion, a specific condition, or driver input
0162mainly during a motion involving steering operation, e.g. cornering, overtaking
B60G 17/019
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
17Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
015the regulating means comprising electric or electronic elements
019characterised by the type of sensor or the arrangement thereof
B60G 2400/102
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
2400Indexing codes relating to detected, measured or calculated conditions or factors
10Acceleration; Deceleration
102vertical
B60G 2600/02
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
2600Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
02Retarders, delaying means, dead zones, threshold values, cut-off frequency, timer interruption
B60G 2600/04
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
2600Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
04Means for informing, instructing or displaying
B60G 2600/08
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
GVEHICLE SUSPENSION ARRANGEMENTS
2600Indexing codes relating to particular elements, systems or processes used on suspension systems or suspension control systems
08Failure or malfunction detecting means
Applicants
  • AUTOMOTIVE SYSTEMS LABORATORY, INC. [US/US]; Suite B-12 27200 Haggerty Road Farmington Hills, MI 48331, US
Inventors
  • GIOUTSOS, Tony; US
Agents
  • LYON, Lyman, R.; Suite 207 3883 Telegraph Road Bloomfield Hills, MI 48302-1476, US
Priority Data
08/295,53925.08.1994US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND SYSTEM FOR DETECTING VEHICLE ROLL-OVER
(FR) PROCEDE ET SYSTEME DE DETECTION DU CAPOTAGE D'UN VEHICULE
Abstract
(EN)
A method and a system for detecting a vehicle roll-over utilizes a z-axis accelerometer (12) and a processor (20) for analyzing the accelerometer output (18) to provide early detection/prediction of a vehicle roll-over. The output signal (18) is substantially a positive constant value equal to the force of gravity when the vehicle (16) is in a normal upright condition, and as the vehicle (16) experiences a roll-over, the output signal transitions to a substantially negative constant value when the vehicle has rolled 180° upside down. To provide early roll-over detection and/or prediction, the z-axis data is averaged (102) and compared to a first threshold value (104) set to a g-force value within a range of 0 to -1 g. Estimating a slope value (step 110), i.e. the change in z-axis data over time, can provide an additional discrimination measure to improve overall reliability, and to provide a qualitative measure of the roll-over.
(FR)
Procédé et système de détection du capotage d'un véhicule utilisant un accéléromètre pour l'axe des Z (12) et un processeur analysant les signaux (18) dudit accéléromètre pour permettre la détection avancée et la prévision du capotage. Le signal (18) présente sensiblement une valeur positive constante égale à la force de gravité lorsque le véhicule (16) se trouve en position verticale normale, mais lorsqu'il amorce un capotage, le signal s'inverse pour atteindre une valeur négative sensiblement constante lorsqu'il a culbuté de 180°. Pour permettre la détection avancée et la prévision du capotage, le signal (18) relatif à l'axe des Z est moyenné et comparé à une première valeur seuil (104) de g comprise entre 0 et -1 g. En estimant la pente (étape 110) c.-à-d. les variations dans le temps des données relatives à l'axe des Z, on peut obtenir une mesure fournissant une précision supplémentaire améliorant la fiabilité générale ainsi qu'une évaluation qualitative du capotage.
Also published as
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