Vehicle theft prevention system and method thereof

• US 20060038664A1
• Filed: 12/20/2004
• Published: 02/23/2006
• Est. Priority Date: 08/17/2004
• Status: Active Grant

• Current Assignee: Hyundai Motor Company (Hyundai Motor Group)
• Original Assignee: Hyundai Mobis Co., Ltd.
• Inventors: Park, Jong-Rae
• Granted Patent: US 7,176,788 B2
• Time in Patent Office: Days
• US Class Current: 340/426.190
• CPC Class Codes: B60R 2325/205 Mobile phones
• CPC Class Codes: B60R 25/1004 Alarm systems characterised by the type of sensor, e.g. current sensing means using door lock sensors B60R25/1001
• CPC Class Codes: B60R 25/102 a signal being sent to a remote location, e.g. a radio signal being transmitted to a police station, a security company or the owner
• CPC Class Codes: B60R 25/33 of global position, e.g. by providing GPS coordinates

Abstract

A vehicle theft prevention system and a method thereof. The system includes an Electronic Control Unit and a vehicle information terminal. The ECU is mounted with a controller that generates a vehicle motion detection message by receiving abnormal detection signals from various sensors detecting the orientation and location of the vehicle and outputs the message through a Control Area Network communication interface. A vehicle information terminal includes a Central Processing Unit, constant voltage circuit part, and CAN communication interface. The CPU is equipped with a Global Positioning System module and mobile communication module. The system thus constructed executes a vehicle motion informing function to prevent vehicle theft even when the vehicle ignition key is turned off.

Claims

1. A vehicle theft prevention system comprising:

an electronic control unit provided with a controller that generates a vehicle motion detection message by receiving abnormal detection signals from various sensors detecting the orientation and location of the vehicle and outputs the vehicle motion detection message through a control area network communication interface; and

a vehicle information terminal including;

a central processing unit equipped with a global positioning system module and a mobile communication module, said central processing system generating a vehicle motion informing message to be outputted through said mobile communication module, if the vehicle is determined to have traveled over a predetermined distance based on a global positioning system location information of said global positioning system module;

a constant voltage circuit element that generates a driving power of said central positioning system by receiving a battery power supply; and

a control area network communication interface that operates said central processing system by applying a driving signal into said constant voltage circuit element, if the vehicle motion detection message is received through a control area network communication while the vehicle ignition key is turned off.

2. The system as defined in claim 1, wherein said control area network communication interface is provided with a control area network controller that activates and deactivates said constant voltage circuit element.

3. A vehicle theft prevention method in a system including a global positioning system module, a mobile communication module, and a controller, which operates a vehicle motion informing function by using the global positioning system module and the mobile communication module during the detection of vehicle theft, comprising:

an electronic control unit receives detection values from various sensors, which detect the orientation and location of the vehicle when the vehicle ignition key is turned off;

the electronic control unit generates a vehicle motion detection message and transmits said message to the controller, if abnormal detection signals are detected from the various sensors;

a communication interface receives the vehicle motion detection message transmitted from the electronic control unit;

the communication interface operates the controller by a constant voltage circuit element that is applied with a driving signal and generates a driving power of the controller;

the controller computes the traveling distance of the vehicle based on a global positioning system location information of the global positioning system module; and

the controller generates a vehicle motion informing message and transmits the message through the mobile communication module, if the traveling distance of the vehicle exceeds a predetermined value.

4. The method as defined in claim 3, wherein said vehicle motion detection message is transmitted and received through the control area network communication interface.