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1. (WO1998052788) VEHICLE HEADLAMP CONTROLLER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/052788 International Application No.: PCT/SG1998/000037
Publication Date: 26.11.1998 International Filing Date: 22.05.1998
Chapter 2 Demand Filed: 21.12.1998
IPC:
B60Q 1/14 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
Q
ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
1
Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
02
the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
04
the devices being headlights
14
having dimming means
Applicants:
CHOW, Mun, Chor [SG/SG]; SG
Inventors:
CHOW, Mun, Chor; SG
Agent:
LAWRENCE Y.D. HO & ASSOCIATES; Thongsia Building 30 Bideford Road #07-01 Singapore 229922, SG
Priority Data:
9701676-022.05.1997SG
Title (EN) VEHICLE HEADLAMP CONTROLLER
(FR) COMMANDE DES PHARES D'UN VEHICULE
Abstract:
(EN) This invention is an automatic controller for switching on and off the headlamps of a vehicle according to the ambient lighting conditions. With just one optical sensor and a controller, the present invention when connected to the relay of the headlamps controls the headlamps accurately and intelligently under all conditions. The controller incorporates a filter (R3C2) and a voltage divider (VR1, VR2, R4) which in turn are connected to a comparator (IC1). The filter (R3C2) removes the alternating component of the output from the optical sensor caused by artificial lighting, while the voltage divider (VR1, VR2, R4) sets a preset threshold intelligently for the activation and deactivation of the headlamps in response to a variety of ambient conditions. The invention also switches off the car lamps when the engine is turned off. This will increase the life of the battery without the drivers having to remember to switch off and on the headlamps.
(FR) L'invention concerne une commande automatique permettant d'allumer et d'éteindre les phares d'un véhicule selon les conditions ambiantes d'éclairage. Avec seulement un capteur optique et une commande, la présente invention appliquée au relais des phares permet de commander les phares de façon précise et intelligente dans toutes les conditions. La commande comporte un filtre et un diviseur de tension qui sont respectivement connectés au comparateur. Le filtre supprime la composante alternative de la sortie du capteur optique, due à l'éclairage artificiel, tandis que le diviseur de tension règle de façon intelligente une valeur de seuil préfixée pour l'activation et la désactivation des phares en réponse à une variété de conditions ambiantes. L'invention permet également d'éteindre les phares lorsque le moteur est mis à l'arrêt. On obtient ainsi une durée de vie prolongée des batteries sans que les conducteurs aient à penser à éteindre et à allumer les phares.
Designated States: AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GE, GH, GM, GW, HU, ID, IL, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, SD, SZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
AU1998075623MYPI 98002279