Title:
ELECTRONIC KEY SYSTEM
Document Type and Number:
Japanese Patent JP3930386
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an electronic key system allowing on-vehicle equipment to be in an available condition, even when running is initiated immediately after an engine is started.
SOLUTION: A navigation ECU 38 and an airbag ECU 39 are connected in parallel to a battery 25. A connection switch 40 is interposed between the navigation ECU 38 and the airbag ECU 39, and the battery 25. The connection switch 40 is turned on when code collation by a smart ECU 16 agrees, and puts the navigation ECU 38, the airbag ECU 39 and the battery 25 in a connected condition. At about the same time when door lock in the vehicle 3 is released, electric power supply to the navigation ECU 38 and the airbag ECU 39 is initiated.
Inventors:
Kiyokazu Otaki
Yoshiyuki Mizuno
Yoshiyuki Mizuno
Application Number:
JP2002181936A
Publication Date:
June 13, 2007
Filing Date:
June 21, 2002
Export Citation:
Assignee:
Tokai Rika Electric Co., Ltd.
International Classes:
E05B49/00; B60R25/01; B60R25/04; B60R25/24; G01C21/00; G01C21/26; (IPC1-7): B60R25/04; B60R25/00; E05B49/00; //G01C21/00
Domestic Patent References:
| JP61113537A | ||||
| JP2000088968A | ||||
| JP3262753A |
Attorney, Agent or Firm:
Hironobu Onda
Makoto Onda
Makoto Onda