Vehicle security system

• US 20050179320A1
• Filed: 02/08/2005
• Published: 08/18/2005
• Est. Priority Date: 02/18/2004
• Status: Active Grant

• Current Assignee: DENSO Corporation
• Original Assignee: DENSO Corporation
• Inventors: Shimomura, Toshio
• Granted Patent: US 7,224,261 B2
• Time in Patent Office: Days
• US Class Current: 307/10.400
• CPC Class Codes: B60R 2325/205 Mobile phones
• CPC Class Codes: B60R 25/2018 Central base unlocks or authorises unlocking

Abstract

When transmitting an instruction for activating an immobilizer function to a vehicle, a base station also transmits a given password for releasing the immobilizer function. When receiving the instruction and the given password, an immobilizer ECU outputs an instruction for prohibiting an engine from starting. Prohibition of engine start is released only when the given password is inputted on a display. Therefore, a regular user alone, who knows the given password, can start the engine.

Claims

1. A vehicle security system comprising:

a driving-device controlling unit that controls a driving device provided in a vehicle;

a signal receiving unit that receives a signal that is transmitted from a wireless base station and requires the driving device to be prohibited from starting;

a password inputting unit that inputs a password;

a prohibition instruction outputting unit that outputs an instruction for prohibiting the driving device from starting, to the driving-device controlling unit based on the signal received by the signal receiving unit; and

a permission instruction outputting unit that outputs an instruction for allowing the driving device, which is prohibited from starting, to start, to the driving-device controlling unit based on that the password is inputted by the password inputting unit.

2. The vehicle security system of claim 1,

wherein the signal received by the signal receiving unit includes a password, and

wherein the permission instruction outputting unit outputs an instruction for allowing the driving device to start, to the driving-device controlling unit when the password received by the signal receiving unit is inputted by the password inputting unit.

3. The vehicle security system of claim 1, further comprising:

a data center that communicates with the wireless base station and manages vehicle robbery information,

wherein the data center includes;

a recognizing unit that recognizes a vehicle robbery;

a password determining unit that determines a password based on recognizing of the vehicle robbery; and

a transmitting unit that transmits the determined password to the wireless base station.

4. The vehicle security system of claim 1, further comprising:

a data center that communicates with the wireless base station and manages vehicle robbery information,

wherein the data center includes;

a receiving unit that receives numeral information transmitted from a user of the vehicle;

a password determining unit that determines a password based on the received numeral information; and

a transmitting unit that transmits the determined password to the wireless base station.

5. The vehicle security system of claim 1,

wherein the password inputting unit includes an information inputting unit provided in an interior of the vehicle.

6. The vehicle security system of claim 1,

wherein the password inputting unit includes a portable information inputting unit that is capable of communicating using wireless communications.

7. The vehicle security system of claim 1,

wherein the password inputting unit includes an information inputting unit that is detachable from a connecting terminal provided in the vehicle.

8. The vehicle security system of claim 1,

wherein the driving-device controlling unit causes the driving device, which is running, to stop when the driving-device controlling unit receives an instruction for prohibiting the driving device from starting.