Prevention against car burglar

• US 4,955,453 A
• Filed: 09/22/1989
• Issued: 09/11/1990
• Est. Priority Date: 10/06/1988
• Status: Expired due to Fees

• Current Assignee: Isuzu Motors Limited
• Original Assignee: Isuzu Motors Limited
• Inventors: Hirako, Atsushi, Nishioka, Keiichi
• Primary Examiner(s): Rice, Kenneth R.
• Application Number:
  US07/410,873
• Time in Patent Office: 354 Days
• Field of Search: 180/287, 180/289
• US Class Current: 180/287
• CPC Class Codes: B60R 25/04 operating on the propulsion system, e.g. engine or drive motor

Abstract

Disclosed herein is a system whereby a car burglar can be prevented while a driver leaves a car as engine going. Upon detection of the driver getting off the car as engine idling, a predetermined device other than equipment belonging to an engine starting system is actuated to a state not ready for the car to start. The device is then turned to a state ready for the car to restart through a predetermined enciphered operation.

Claims

1. A prevention against car burglar comprising enciphered operation means capable of generating an electrical signal, a seat switch, enciphered code memory means, car starting inhibit means utilizing equipment other than an engine starting system, an engine rotation sensor, prevention against burglar controlling computer, which is characterized in that said car starting inhibit means is kept operating when a driver gets off as an engine idling, an operation of said car starting inhibit means it released when an enciphered operation signal generated by said enciphered operation means is identified with an enciphered code of said enciphered code memory means.

2. The prevention against car burglar as defined in claim 1, wherein a step motor for controlling a fuel fed to an engine is used as said car starting inhibit means.

3. The prevention against car burglar as defined in claim 1, wherein a clutch control part is used as said car starting inhibit means.

4. The prevention against car burglar as defined in claim 1, wherein a transmission control part is used as said car starting inhibit means.

5. The prevention against car burglar as defined in claim 1, wherein a traction control system is used as said car starting inhibit means.

6. The prevention against car burglar as defined in claim 1, wherein a shift lever is used as said enciphered operation means.

7. The prevention against car burglar as defined in claim 1, wherein a lamp switch is used as said enciphered operation means.

8. The prevention against car burglar as defined in claim 1, wherein a wiper switch is used as said enciphered operation means.

9. A prevention against car burglar comprising enciphered operation means capable of generating an electrical signal, a seat switch, enciphered code memory means, car starting inhibit means utilizing equipment other than an engine starting system, an engine rotation sensor, prevention against burglar controlling computer, which is characterized in that said car starting inhibit means is kept operating when a driver gets off as an engine idling and the engine is started, an operation of said car starting inhibit means is released when an enciphered operation signal generated by said enciphered operation means is identified with an enciphered code of said enciphered code memory means.

10. The prevention against car burglar as defined in claim 9, wherein a step motor for controlling a fuel fed to an engine is used as said car starting inhibit means.

11. The prevention against car burglar as defined in claim 9, wherein a clutch control part is used as said car starting inhibit means.

12. The prevention against car burglar as defined in claim 9, wherein a transmission control part is used as said car starting inhibit means.

13. The prevention against car burglar as defined in claim 9, wherein a traction control system is used as said car starting inhibit means.

14. The prevention against car burglar as defined in claim 9, wherein a shift lever is used as said enciphered operation means.

15. The prevention against car burglar as defined in claim 9, wherein a lamp switch is used as said enciphered operation means.

16. The prevention against car burglar as defined in claim 9, wherein a wiper switch is used as said enciphered operation means.