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Method and device for determining filling pressure loss of a pneumatic vehicle tire

  • US 5,561,415 A
  • Filed: 01/13/1995
  • Issued: 10/01/1996
  • Est. Priority Date: 01/14/1994
  • Status: Expired due to Term
First Claim
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1. A method for determining pressure loss in a pneumatic vehicle tire on a driven axle of a vehicle, said method comprising the steps of:

  • measuring the rotational velocities of the wheels;

    calculating slip values for the driven wheels based on the rotational velocities;

    determining simultaneously wheel drive forces of the vehicle for the calculated slip values;

    correlating the wheel drive forces and the slip values to produce a characteristic curve;

    comparing the characteristic curve to a predetermined characteristic curve range; and

    generating a warning signal when the characteristic curve surpasses the predetermined characteristic curve range.

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