EP 0895559 B1 20020116 - LOCKING SYSTEM FOR MOTOR VEHICLES
Title (en)
LOCKING SYSTEM FOR MOTOR VEHICLES
Title (de)
SCHLIESSSYSTEM FÜR KRAFTFAHRZEUGE
Title (fr)
SYSTEME DE FERMETURE POUR AUTOMOBILES
Publication
Application
Priority
- DE 19617038 A 19960427
- EP 9701890 W 19970416
Abstract (en)
[origin: DE19617038A1] In a locking system, as for instance used on a vehicle, a switch or sensor, initiates the interrogation of a data storage medium via a control unit to check for access authorisation. If access authorisation is given the control unit releases the locks of the locking system automatically. To improve user convenience regarding the system release, the invention proposes to integrate at least one capacitive sensor in at least one door handle. For this purpose at least one first electrode is situated in the inner shell of the door handle and a second electrode is placed in the area of a door opposite the handle. By applying an antipole voltage to both electrodes an electrical field is generated between the two. The approach of a hand, which in the invention acts as a dielectric, causes a change in the cumulative dielectric state between the two electrodes. Such a change is recognised by the capacitive sensor and transformed into an electric pulse which initiates in the electrical control unit interrogation of the data storage medium. The data storage medium then sends its data to the on-board electrical control unit which compares the data received with the data stored and releases the locks on the doors of the vehicle if the data match.
IPC 1-7
IPC 8 full level
E05B 17/22 (2006.01); E05B 49/00 (2006.01); E05B 65/20 (2006.01); E05B 65/26 (2006.01); E05B 81/78 (2014.01); G07C 9/00 (2006.01); E05B 85/16 (2014.01)
CPC (source: EP KR US)
E05B 81/76 (2013.01 - KR); E05B 81/78 (2013.01 - EP US); G07C 9/00309 (2013.01 - EP US); E05B 81/77 (2013.01 - EP US); E05B 85/16 (2013.01 - EP US); G07C 2009/00793 (2013.01 - EP US); G07C 2209/65 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT NL PT SE
DOCDB simple family (publication)
DE 19617038 A1 19971106; DE 19617038 C2 20001130; AU 2637997 A 19971119; AU 731480 B2 20010329; BR 9708868 A 19990803; CN 1119488 C 20030827; CN 1216593 A 19990512; DE 59706016 D1 20020221; EP 0895559 A1 19990210; EP 0895559 B1 20020116; ES 2166535 T3 20020416; JP 2000509121 A 20000718; KR 100406329 B1 20040309; KR 20000065060 A 20001106; PT 895559 E 20020628; US 6075294 A 20000613; WO 9741322 A1 19971106
DOCDB simple family (application)
DE 19617038 A 19960427; AU 2637997 A 19970416; BR 9708868 A 19970416; CN 97194103 A 19970416; DE 59706016 T 19970416; EP 9701890 W 19970416; EP 97918137 A 19970416; ES 97918137 T 19970416; JP 53850697 A 19970416; KR 19980708620 A 19981027; PT 97918137 T 19970416; US 17179098 A 19981026