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Process and system for determining the onset of tread rubber separations of a pneumatic tire on a vehicle

  • US 20030080857A1
  • Filed: 10/10/2002
  • Published: 05/01/2003
  • Est. Priority Date: 10/30/2001
  • Status: Active Grant
First Claim
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1. A method of detecting an onset of tread rubber separation of a pneumatic tire on a vehicle, the method comprising:

  • producing a permanent first periodic vibration, in at least one of each axle and each wheel, proportional to a wheel rotational speed as a speed output signal;

    feeding the speed output signal to a signal processing device;

    wherein in the onset of tread rubber separation, the method further comprises;

    superimposing, on a first vibration or the speed output signal, at least one separately defined periodic vibration characteristic of the onset of tread rubber separation and proportional to the wheel rotational speed;

    detecting the superimposition of the first periodic vibration with the at least one separately defined periodic vibration characteristic of the onset of tread rubber separation in the signal processing device; and

    producing a warning signal.

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