Vehicle theft prevention device

• US 20030043017A1
• Filed: 08/30/2002
• Published: 03/06/2003
• Est. Priority Date: 08/30/2001
• Status: Active Grant

• Current Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Original Assignee: Fujitsu Ten Limited (DENSO Corporation)
• Inventors: Tanaka, Shinichi
• Granted Patent: US 6,909,362 B2
• Time in Patent Office: Days
• US Class Current: 340/5.2
• CPC Class Codes: B60R 25/24 using electronic identifiers containing a code not memorised by the user

Abstract

The occurrence of vehicle theft is more positively prevented when a door and running system of a vehicle are unlocked, by a remote controller, with different identification codes. The door of a vehicle is locked when an identification code is inputted from the remote controller, and the door cannot be unlocked as long as the same identification code is not inputted from the remote controller. The running system of the vehicle is locked when the driver of the vehicle pushes the switch of an interior device in driver-selected order. As long as the switch of the interior device is pushed in the same order, the running system can be unlocked. As a result, theft of the vehicle can be more positively prevented.

Claims

1. A vehicle theft prevention device comprising:

a first security means for locking a vehicle so as to prevent an intrusion into the vehicle;

a second security means for locking a running system of the vehicle; and

an unlocking means for independently unlocking the first and the second security means.

2. A vehicle theft prevention device according to claim 1, wherein at least one of the first and the second security means conducts locking, when a driver locks a door of the vehicle from the outside of the vehicle after the driver inputs the specific precondition into the unlocking means before the driver leaves the vehicle.

3. A vehicle theft prevention device according to claim 2, wherein the unlocking means is capable of independently unlocking the first and the second security means after the input of the precondition by the driver.

4. A vehicle theft prevention device according to claim 1, wherein the unlocking means is composed of a first and a second unlocking means, the first unlocking means unlocks the first security means, and the second unlocking means unlocks the second security means.

5. A vehicle theft prevention device according to claim 4, wherein the second unlocking means can be operated after the first unlocking means has conducted an unlocking operation.

6. A vehicle theft prevention device according to claim 5 wherein, when the second unlocking means does not conduct an unlocking operation in a predetermined period of time after the completion of unlocking operation conducted by the first unlocking means, the first security means conducts a locking operation again.

7. A vehicle theft prevention device according to claim 2, wherein the setting of the locking operation of the first security means and the unlocking operation of the first unlocking means is conducted by a remote controller capable of transmitting a vehicle door locking signal and vehicle door unlocking signal.

8. A vehicle theft prevention device according to claim 7, wherein the setting of the locking operation of the first security means and the unlocking operation of the first unlocking means is conducted by the remote controller according to the numbers of pushed times of pushing push-buttons of the remote controller.

9. A vehicle theft prevention device according to claim 8, wherein the setting of the locking operation of the second security means and the unlocking operation of the second unlocking means is conducted by utilizing buttons of an interior device arranged close to a driver'"'"'s seat in the vehicle.

10. A vehicle theft prevention device according to claim 9 wherein, when the setting of the locking operation of the second security means and the unlocking operation of the second unlocking means conducted by the buttons of the interior device is completed, the completion of the setting is notified to a driver by another interior device different from the first interior device.

11. A vehicle theft prevention device according to claim 9, wherein an unlocking operation of the second unlocking means and that of the first unlocking means are simultaneously performed according to a combination of the number of times buttons of the interior device are pushed or the positions of the buttons are pushed.

12. A vehicle theft prevention device according to claim 9, wherein the confirming operation of confirming the setting, which is performed by another interior device, is different when the setting of the precondition of an unlocking operation conducted by the second unlocking means with the button of the interior device is performed simultaneously with the unlocking operation of the first unlocking means and when the setting of the precondition of an unlocking operation conducted by the second unlocking means is performed independently from the unlocking operation of the first unlocking means.

13. A vehicle theft prevention device according to claim 12, wherein a difference in the confirming operation conducted by the interior device is a difference of the number of times of turning on and off a lamp in the vehicle.

14. A vehicle theft prevention device according to claim 9, wherein the setting of the locking operation of the second security means and the unlocking operation of the second unlocking means is performed with the buttons of the interior device according to a combination of times buttons of the interior device are pushed or positions of the buttons are pushed.

15. A vehicle theft prevention device according to claim 14 wherein, when the setting of the locking operation of the second security means and unlocking operation of the second unlocking means performed with the buttons of the interior device is completed, the completion of the setting is notified to a driver by another interior device different from the first interior device.

16. A vehicle theft prevention device according to claim 15 wherein, the following mode is set such that when the setting of the locking operation of the second security means is conducted in a plurality of stages, unlocking operation by the second unlocking means is possible only when the unlocking operation is conducted in a plurality of stages in the same manner as that of the locking operation.

17. A vehicle theft prevention device according to claim 14, wherein the unlocking operation of the second unlocking means and the unlocking operation of the first unlocking means are simultaneously conducted by a combination of the number of times buttons of the interior device are pushed or positions of the buttons are pushed.

18. A vehicle theft prevention device according to claim 14, wherein the confirming operation of confirming the setting, which is performed by another interior device, is different when the setting of the precondition of an unlocking operation conducted by the second unlocking means with the button of the interior device is performed simultaneously with the unlocking operation of the first unlocking means and when the setting of the precondition of unlocking operation conducted by the second unlocking means is performed independently from the unlocking operation of the first unlocking means.

19. A vehicle theft prevention device according to claim 18, wherein a difference of the confirming operation conducted by the interior device is a difference of the number of times of turning on and off the lamp in the vehicle.

20. A vehicle theft prevention device according to claim 1, wherein when the first and the second security means are locked by locking the door with the key or with the remote controller capable of transmitting a vehicle door locking signal and unlocking signal after the driver gets out of the vehicle, the first and the second security means can be simultaneously unlocked by an unlocking operation conducted by the key or the remote controller.

21. A vehicle theft prevention device according to claim 2, wherein the unlocking means is composed of a first and a second unlocking means, the first unlocking means unlocks the first security means, and the second unlocking means unlocks the second security means.

22. A vehicle theft prevention device according to claim 3, wherein the unlocking means is composed of a first and a second unlocking means, the first unlocking means unlocks the first security means, and the second unlocking means unlocks the second security means.

23. A vehicle theft prevention device according to claim 6, wherein the setting of the locking operation of the first security means and the unlocking operation of the first unlocking means is conducted by a remote controller capable of transmitting a vehicle door locking signal and vehicle door unlocking signal.