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1. EP0771425 - SAFETY SYSTEM FOR VEHICLES

Office European Patent Office
Application Number 95925062
Application Date 14.07.1995
Publication Number 0771425
Publication Date 07.05.1997
Publication Kind A2
IPC
G01S 13/93
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
13Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
88Radar or analogous systems, specially adapted for specific applications
93for anti-collision purposes
A62C 3/07
AHUMAN NECESSITIES
62LIFE-SAVING; FIRE-FIGHTING
CFIRE-FIGHTING
3Fire prevention, containment or extinguishing specially adapted for particular objects or places
07in vehicles, e.g. in road vehicles
B60Q 1/44
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
26the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
44for indicating braking action
B60Q 1/52
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
26the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
50for indicating other intentions or conditions, e.g. request for waiting or overtaking
52for indicating emergencies
B60R 19/20
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
18Means within the bumper to absorb impact
20containing gas or liquid, e.g. inflatable
B60R 19/40
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
24Arrangements for mounting bumpers on vehicles
38adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
40in the direction of an obstacle before a collision
CPC
B60R 21/013
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 ; passive; safety arrangements, ; e.g. airbags, safety belt tighteners,; in case of vehicle accidents or impending vehicle accidents
013including means for detecting collisions, impending collisions or roll-over
B60Q 1/444
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1Arrangements or adaptations of optical signalling or lighting devices
26the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
44for indicating braking action or preparation for braking, ; e.g. by detection of the foot approaching the brake pedal
444with indication of the braking strength or speed changes, e.g. by changing shape or intensity of the indication
B60Q 1/525
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1Arrangements or adaptations of optical signalling or lighting devices
26the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
50for indicating other intentions or conditions, e.g. request for waiting or overtaking
52for indicating emergencies
525indicating risk of collision between vehicles or with pedestrians
B60Q 5/006
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
QARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
5Arrangements or adaptations of acoustic signal devices
005automatically actuated
006indicating risk of collision between vehicles or with pedestrians
B60R 19/205
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards, ; e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
18characterised by the cross-section;; Means within the bumper to absorb impact
20containing ; mainly; gas or liquid, e.g. inflatable
205inflatable in the direction of an obstacle upon impending impact, e.g. using air bags
B60R 19/40
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
19Wheel guards; Radiator guards, ; e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
02Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
24Arrangements for mounting bumpers on vehicles
38adjustably or movably mounted, e.g. horizontally displaceable for securing a space between parked vehicles
40in the direction of an obstacle before a collision ; , or extending during driving of the vehicle, i.e. to increase the energy absorption capacity of the bumper
Applicants DESIGN TECHNOLOGY & INNOVATION
Inventors TONKIN MARK
Designated States
Priority Data 9414393 15.07.1994 GB
9501670 14.07.1995 GB
Title
(DE) SICHERHEITSEINRICHTUNG FÜR KRAFTFAHRZEUGE
(EN) SAFETY SYSTEM FOR VEHICLES
(FR) SYSTEME DE SECURITE POUR VEHICULES
Abstract
(EN)
The system comprising a controller fitted to a subject vehicle (16) and sensor means (20) operable to sense a distance of separation and relative velocity of a trailing vehicle (18). Also input to the controller is a velocity signal derived from a velocity sensing means (97) determining the ground speed of the subject vehicle using a doppler radar system. The controller calculates a safety envelope and activates a visible warning device attached to the rear of the subject vehicle if the trailing vehicle penetrates the safety envelope. An enhanced safety envelope determined by adverse road conditions is also established, any incursion into the enhanced envelope resulting generally in the visible warning being at a less prominent level. If however the closing speed of the trailing vehicle exceeds a predetermined threshold, penetration of the enhanced envelope results immediately in the full warning being displayed with full prominence to the driver of the trailing vehicle. The system has application to improving the safety of road vehicles.

(FR)
Le système de cette invention comprend un dispositif de commande intégré dans un premier véhicule (16) et un capteur (20) pouvant être mis en ÷uvre pour mesurer la distance de séparation et la vitesse relative d'un deuxième véhicule (18) roulant derrière le premier véhicule (16). Le dispositif de commande reçoit également un signal de vitesse provenant d'un capteur (97) de vitesse qui détermine la vitesse au sol du premier véhicule à l'aide d'un radar Doppler. Le dispositif de commande calcule un périmètre de sécurité et active un avertisseur visuel attaché à l'arrière du premier véhicule si le deuxième véhicule pénètre dans le périmètre de sécurité. Un périmètre de sécurité renforcée déterminé par de mauvaises conditions de circulation est également établi, toute incursion dans le périmètre renforcé ayant généralement pour effet d'activer l'avertisseur visuel à un niveau faible. Cependant, si la vitesse de rapprochement du deuxième véhicule dépasse un seuil prédéterminé, toute pénétration dans le périmètre renforcé produit l'activation immédiate de l'avertisseur à son niveau le plus complet avec signalisation maximum pour le conducteur du deuxième véhicule. Ce système s'applique pour améliorer la sécurité des véhicules sur la route.