Throttle disable method and system

• US 20080314673A1
• Filed: 08/26/2008
• Published: 12/25/2008
• Est. Priority Date: 02/17/2004
• Status: Active Grant

• Current Assignee: Delphi Technologies Ip Limited (BorgWarner Incorporated)
• Original Assignee: Delphi Technologies, Inc. (BorgWarner Incorporated)
• Inventors: Bolduc, Timothy D., Prieto, Luis A., Hedges, Christopher A., Hunt, Gerald P., Griffin, R. Clarkson
• Granted Patent: US 7,699,133 B2
• Time in Patent Office: Days
• US Class Current: 180/279
• CPC Class Codes: B60R 25/042 operating on the fuel supply
• CPC Class Codes: B60R 25/045 by limiting or cutting the electrical supply to the propulsion unit
• CPC Class Codes: B60R 25/25 using biometry
• CPC Class Codes: B60R 25/252 Fingerprint recognition
• CPC Class Codes: B60R 25/33 of global position, e.g. by providing GPS coordinates

Abstract

The present invention provides a system and method for degrading and disabling a vehicle'"'"'s engine throttle. The vehicle disable system includes a throttle position sensor that generates a throttle position signal, an electronic control module (“ECM”) input connected to the ECM on which the throttle position sensor provides the throttle position signal to the ECM, and an override input that enables an idling signal to be transmitted to the ECM instead of the throttle position signal. The method of the present invention includes the steps of receiving an input signal related to the state of the driver input mechanism, interpreting the input signal, and at least one of degrading and disabling the throttle based on the interpretation of the input signal.

Claims

2. In an automotive vehicle having an engine throttle under the control of an electronic control module (“

ECM”

), and a driver input mechanism indicating a state of the throttle varying between idle and non-idle operation, a method of reducing the throttle, the method comprising the steps of;

receiving an input signal related to the state of the driver input mechanism, said input signal comprising one of an analog signal and a digital signal, said analog signal having a voltage and said digital signal having a duty cycle;

interpreting said input signal; and

at least one of degrading and disabling the throttle based on the interpretation of said input signal.

1. The vehicle disable system of claim 10 wherein at least one of said first and second switch means includes a microprocessor executing program instructions.

3. The method of claim 2 wherein said step of interpreting includes a step of determining whether the vehicle is in at least one of a first, a second and a third zone level.

4. The method of claim 3 wherein said step of determining includes a step of utilizing vehicle position information to determine whether the vehicle is in one of the first, second and third zone levels

5. The method of claim 3 wherein said step of determining includes a step of utilizing alarm information to determine whether the vehicle is in one of the first, second and third zone levels.

6. The method of claim 3 wherein said step of determining includes a step of utilizing biometric information to determine whether the vehicle is in one of the first, second and third zone levels.

7. The method of claim 3 wherein, if said input signal is digital, said step of interpreting includes a step of determining whether the input signal'"'"'s duty cycle is greater than a predefined limit duty cycle.

8. The method of claim 3 wherein, if said input signal is digital and the vehicle is determined to be in the first zone level, said step of interpreting includes a step of transmitting said digital input signal to the ECM.

9. The method of claim 7 wherein, if said input signal is digital and the vehicle is determined to be in the second zone level, said step of interpreting includes a step of transmitting said digital input signal to the ECM until the signal'"'"'s duty cycle is determined to be greater than the predefined limit duty cycle.

10. The method of claim 9 wherein said step of degrading includes a step of limiting the digital input signal'"'"'s duty cycle to the predefined limit duty cycle if the signal'"'"'s duty cycle is determined to be greater than the predefined limit duty cycle.

11. The method of claim 3 wherein if said input signal is digital and the vehicle is determined to be in the third zone level, said step of disabling includes steps of generating an idling signal and transmitting said idling signal to the ECM.

12. The method of claim 3 wherein, if said input signal is analog, said step of interpreting includes a step of determining whether said analog input signal'"'"'s voltage is greater than a predefined limit voltage.

13. The method of claim 3 wherein, if said input signal is an analog signal and the vehicle is determined to be in the first zone level, said step of interpreting includes a step of transmitting said analog throttle position signal to the ECM.

14. The method of claim 12 wherein, if said input signal is analog and the vehicle is determined to be in the second zone level, said step of interpreting includes a step of transmitting said analog input signal to the ECM until the input signal'"'"'s voltage is determined to be greater than the predefined limit voltage.

15. The method of claim 12 wherein, if said analog input signal is determined to be greater than the predefined limit voltage, said step of degrading includes steps of generating a limiting voltage equal to the predefined limit voltage and transmitting said limiting voltage to the ECM.

16. The method of claim 3 wherein, if said input signal is analog and the vehicle is determined to be in the third zone level, said step of disabling includes steps of generating an idling voltage signal and transmitting said idling voltage signal to the ECM.

17. In an automotive vehicle having an engine throttle under the control of an electronic control module (ECM), a controller comprising:

a processor; and

memory readable by said processor and storing program instructions executable by said processor to perform method steps, said method steps comprising;

receiving an input signal related to the state of a driver input mechanism, said input signal comprising one of an analog signal and a digital signal, said analog signal having a voltage and said digital signal having a duty cycle;

interpreting said input signal; and

at least one of degrading and disabling the throttle based on the interpretation of said input signal.

18. The controller of claim 17 wherein said program instructions include said step of interpreting including a step of determining whether the vehicle is in at least one of a first, a second and a third zone level

19. The controller of claim 18 wherein said program instructions include said step of determining including a step of utilizing vehicle position information to determine whether the vehicle is in one of the first, second and third zone levels.

20. The controller of claim 18 wherein said program instructions include said step of determining including a step of utilizing alarm information to determine whether the vehicle is in one of the first, second and third zone levels.

21. The controller of claim 18 wherein said program instructions include said step of determining including a step of utilizing biometric information to determine whether the vehicle is in one of the first, second and third zone levels.

22. The controller of claim 18 wherein said program instructions include, if said input signal is digital, said step of interpreting including a step of determining whether said input signal'"'"'s duty cycle is greater than a predefined duty cycle.

23. The controller of claim 18 wherein said program instructions include, if said input signal is digital and the vehicle is determined to be in the first zone level, said step of interpreting including a step of transmitting said digital input signal to the ECM.

24. The controller of claim 22 wherein said program instructions include, if said input signal is digital and the vehicle is determined to be in the second zone level, said step of interpreting including a step of transmitting said digital input signal to the ECM until the signal'"'"'s duty cycle is determined to be greater than the predefined limit duty cycle.

25. The controller of claim 24 wherein said program instructions include, if said digital input signal'"'"'s duty cycle is determined to be greater than the predefined limit duty cycle, said step of degrading including a step of limiting the digital input signal'"'"'s duty cycle to the predefined limit duty cycle.

26. The controller of claim 18 wherein said program instructions include, if said input signal is digital and the vehicle is determined to be in the third zone level, said step of disabling including steps of generating an idling signal and transmitting said idling signal to the ECM.

27. The controller of claim 18 wherein said program instructions include, if said input signal is analog, said step of interpreting including a step of determining whether said analog input signal'"'"'s voltage is greater than a predefined limit voltage.

28. The controller of claim 18 wherein said program instructions include, if said input signal is an analog signal and the vehicle is determined to be in the first zone level, said step of interpreting including a step of transmitting said analog throttle position signal to the ECM.

29. The controller of claim 27 wherein said program instructions include, if said input signal is analog and the vehicle is determined to be in the second zone level, said step of interpreting including a step of transmitting said analog input signal to the ECM until the input signal'"'"'s voltage is determined to be greater than the predefined limit voltage.

30. The method of claim 29 wherein said program instructions include, if said analog input signal is determined to be greater than the predefined limit voltage, said step of degrading including steps of generating a limiting voltage equal to the predefined limit voltage and transmitting said limiting voltage to the ECM.

31. The method of claim 18 wherein said program instructions include, if said input signal is analog and the vehicle is determined to be in the third zone level, said step of disabling including steps of generating an idling voltage signal and transmitting said idling voltage signal to the ECM.