DETECTING SIGNAL INTERFERENCE IN A VEHICLE SYSTEM

• US 20080001809A1
• Filed: 06/30/2006
• Published: 01/03/2008
• Est. Priority Date: 06/30/2006
• Status: Abandoned Application

• Current Assignee: Valeo Raytheon Systems, Inc. (Valeo SE)
• Original Assignee: Valeo Raytheon Systems, Inc. (Valeo SE)
• Inventors: Sternal, Edward, Hunt, Dennis, Booth, Kenneth A., Woodington, Walter Gordon
• Application Number:
  US11/427,829
• Publication Number:
  US 20080001809A1
• Time in Patent Office: Days
• US Class Current: 342/70
• CPC Class Codes: G01S 13/931 of land vehicles
• CPC Class Codes: G01S 2013/9315 Monitoring blind spots
• CPC Class Codes: G01S 2013/93274 on the side of the vehicles
• CPC Class Codes: G01S 7/023 Interference mitigation, e.g. reducing or avoiding non-intentional interference with other HF-transmitters, base station transmitters for mobile communication or other radar systems, e.g. using electro-magnetic interference [EMI] reduction techniques auxiliary means for detecting or identifying radar signals or the like G01S7/021; means for anti-jamming G01S7/36
• CPC Class Codes: G01S 7/4017 of HF systems
• CPC Class Codes: G01S 7/4021 of receivers

Abstract

In one aspect, the invention is a method, which includes detecting interference in a vehicle system disposed in a vehicle. Detecting includes measuring a frequency of a signal provided from a power source used in the vehicle. Detecting also includes determining if the signal has a frequency within a frequency band used by the vehicle system.

Claims

1. A method, comprising:

detecting interference in a vehicle system disposed in a vehicle, detecting comprising;

measuring a frequency of a signal provided from a power source used in the vehicle; and

determining if the signal has a frequency within a frequency band used by the vehicle system.

2. The method of claim 1 wherein measuring the frequency of the signal comprises measuring the frequency of the signal from a power source providing power to a component of the vehicle system.

3. The method of claim 1, further comprising sending an interference detection signal in response to the signal being within the frequency band.

4. The method of claim 3 wherein sending the interference detection signal comprises sending the interference detection signal to a human/machine interface.

5. The method of claim 3 wherein sending the interference detection signal comprises sending the interference detection signal to the vehicle system.

6. The method of claim 1 wherein detecting comprises performing a fast Fourier transform (FFT) on the signal.

7. The method of claim 6, further comprising converting the signal to digital samples.

8. The method of claim 1 wherein measuring the signal from the power source comprises conditioning the signal.

9. The method of claim 1 wherein detecting interference in a vehicle comprises detecting interference in a vehicle radar system.

10. The method of claim 9 wherein determining if the signal has the frequency within the frequency band used by the vehicle system comprises determining if the signal has a frequency band from about 1 kHz to about 100 kHz used by the vehicle radar system to detect objects.

11. The method of claim 9 wherein measuring the frequency of the signal comprises measuring a frequency of a signal provided from an alternator.

12. An article comprising a machine-readable medium that stores executable instructions, the instructions causing a machine to:

detect interference in a vehicle system, the instructions causing a machine to detect comprising instructions causing a machine to;

measure a frequency of a signal provided from a power source providing power to a component of the vehicle system; and

determine if the signal has a frequency within a frequency band used by the vehicle system.

13. The article of claim 12, further comprising instructions causing the machine to send an interference detection signal in response to the frequency being within the frequency band.

14. The article of claim 13 wherein the instructions causing the machine to send the interference detection signal comprises instructions causing the machine to send the interference detection signal to the vehicle system.

15. The article of claim 12 wherein the instructions causing the machine to detect comprises instructions causing the machine to perform a fast Fourier transform (FFT) on the signal.

16. The article of claim 15, further comprising instructions causing the machine to convert the signal to digital samples.

17. The article of claim 12 wherein the instructions causing the machine to detect interference comprises instructions causing the machine to detect interference in a vehicle radar system,

wherein the instructions causing the machine to determine if the signal has the frequency within a frequency band used by the vehicle system comprises instructions causing the machine to determine if the signal has a frequency band from about 1 kHz to about 100 kHz used by the vehicle radar system to detect objects.

19. The article of claim 17 wherein the instructions causing the machine to measure a frequency of the signal comprises instructions causing the machine to measure a frequency of a signal provided from an alternator.

18. (canceled)

20. An apparatus, comprising:

circuitry to detect interference in a vehicle system, the circuitry to detect comprising circuitry to;

measure a frequency of a signal provided from a power source providing power to a component of the vehicle system; and

determine if the signal has a frequency within a frequency band used by the vehicle system.

21. The apparatus of claim 20 wherein the circuitry comprises at least one of a processor, a memory, programmable logic or logic gates.

22. The apparatus of claim 20, further comprising circuitry to send an interference detection signal in response to the signal being in the frequency band

23. The apparatus of claim 22 wherein the circuitry to send the interference detection signal comprises circuitry to send the interference detection signal to the vehicle system.

24. The apparatus of claim 20 wherein the circuitry to detect comprises circuitry to perform a fast Fourier transform (FFT) on the signal.

25. The apparatus of claim 24, further comprising circuitry to convert the signal to digital samples.

26. The apparatus of claim 20 wherein the circuitry to detect comprises circuitry to detect interference in a vehicle radar system,

wherein the circuitry to determine if the signal has a frequency within a frequency band used by the vehicle system comprises circuitry to determine if the signal has a frequency band from about 1 kHz to about 100 kHz used by the vehicle radar system to detect objects,

wherein the circuitry to measure the frequency of the signal comprises circuitry to measure a frequency of a signal provided from an alternator.

27-28. -28. (canceled)