Electric key system for vehicle

• US 20040063477A1
• Filed: 09/30/2003
• Published: 04/01/2004
• Est. Priority Date: 09/30/2002
• Status: Active Grant

• Current Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Original Assignee: Honda Giken Kogyo Kabushiki Kaisha (Honda Motor Company)
• Inventors: Konno, Takeshi
• Granted Patent: US 7,663,472 B2
• Time in Patent Office: Days
• US Class Current: 455/575.9
• CPC Class Codes: B60R 2325/306 Motorcycles
• CPC Class Codes: B60R 25/04 operating on the propulsion system, e.g. engine or drive motor
• CPC Class Codes: B60R 25/245 where the antenna reception area plays a role

Abstract

In an electronic key system for a vehicle which includes a control apparatus mounted on an actual vehicle and an electronic key for transmitting a response signal in response to receiving of a request signal transmitted from the control apparatus through a transmitting antenna, the transmitting antenna is installed on an instrument panel of the actual vehicle. In particular, the instrument panel has various instruments (a speedometer, a direction indicator (left), another direction indicator (right), and so forth) and a board for securing the instruments thereto. Accordingly, the transmitting antenna is installed at a position on the board rather near to a seat (a position of front side of the user when the user is seated on the seat).

Claims

1. An electronic key system for a vehicle which includes a control apparatus mounted on an actual vehicle and an electronic key for transmitting a response signal in response to receiving of a request signal transmitted from said control apparatus through a transmitting antenna, characterized in that

said transmitting antenna is installed on an instrument panel of said actual vehicle or in the proximity of said instrument panel of said actual vehicle.

2. An electronic key system for a vehicle according to claim 1, characterized in that

said instrument panel has various instruments and a board for securing said instruments thereto, and

said transmitting antenna is provided on said board.

3. An electronic key system for a vehicle according to claim 2, characterized in that

said transmitting antenna is installed at a position on said board rather near to a seat.

4. An electronic key system for a vehicle according to claim 1, where a shade is mounted around said instrument panel, said transmitting antenna is installed on said shade.

5. An electronic key system for a vehicle according to claim 4, characterized in that

said shade is made of a resin.

6. An electronic key system for a vehicle according to claim 4, characterized in that

said transmitting antenna is installed on an inner wall surface of said shade.