Burglarproof device for vehicle

• US 20040183653A1
• Filed: 09/17/2003
• Published: 09/23/2004
• Est. Priority Date: 03/17/2003
• Status: Active Grant

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Hata, Toshiaki
• Granted Patent: US 7,449,988 B2
• Time in Patent Office: Days
• US Class Current: 340/5.72
• CPC Class Codes: B60R 25/04 operating on the propulsion system, e.g. engine or drive motor
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user
• CPC Class Codes: G07C 2009/00285 immobilizer

Abstract

The burglarproof device for vehicle includes a portable transmitter having an unlock button for transmitting a preset first ID code, an immobilizer controller for receiving the first ID code from the portable transmitter, and collating the first ID code with a second ID code stored to permit the activation of a handle on the basis of a collation result thereof, and a system relay for permitting an engine operation on the basis of the collation result by the immobilizer controller, or disabling the engine operation on the basis of an operating state of the engine, and a fuel injection controller.

Claims

1. A burglarproof device for vehicle comprising:

a portable transmitter having a first switch for transmitting a preset first ID code;

a vehicle operational device activation determining unit for determining the activation of an operational device for vehicle by receiving the first ID code from the portable transmitter, and collating the first ID code with a second ID code prestored to permit the activation of the operational device for vehicle on the basis of a collation result; and

an engine operation restraining unit for permitting an engine operation on the basis of the collation result by the vehicle operational device activation determining unit, or disabling the engine operation on the basis of an operating state of the engine.

2. The burglarproof device for vehicle according to claim 1, wherein

the portable transmitter has a second switch for transmitting a preset third ID code, in which vehicle operational device restraining unit receives the third ID code from the portable transmitter, and collates the third ID code with a fourth ID code prestored, and the engine operation restraining unit disables the engine operation on the basis of the collation result.

3. The burglarproof device for vehicle according to claim 2, wherein the operational device for vehicle is restrained by electromagnetic lock unit.

4. The burglarproof device for vehicle according to claim 1, further comprising:

an alarming unit for raising the alarm by sensing a vibration of the vehicle when the engine operation is disabled by the engine operation restraining unit.

5. The burglarproof device for vehicle according to claim 1, wherein

the engine operation restraining unit stops the operation of the engine by shutting off the ignition of the engine or the supply of a fuel to the engine.

6. The burglarproof device for vehicle according to claim 1, wherein

the engine operation restraining unit disables the operation of the engine if the engine transits from an operating state to a stopped state.

7. The burglarproof device for vehicle according to claim 1, wherein

the engine operation restraining unit disables the operation of the engine if the engine is not operated even after the passage of a fixed time from a permission of the engine operation.

8. The burglarproof device for vehicle according to claim 1, wherein

the first switch and the second switch instruct vehicle operational device activation determining unit to make a plurality of functions.