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Vehicle having position generators assigned to the wheels

  • US 6,208,243 B1
  • Filed: 11/06/1997
  • Issued: 03/27/2001
  • Est. Priority Date: 11/07/1996
  • Status: Expired due to Fees
First Claim
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1. A vehicle having at least four wheels which are arranged on two axles, can be cushioned relative to a body of the vehicle in the direction of a vertical axis of the body and are provided with inflatable tires, and having a tire pressure alarm system comprising:

  • at least four position generators, one such position generator being assigned to each wheel;

    signals from said position generators providing an indication of respective vertical distances between an associated wheel center and a body of the vehicle; and

    a control unit which is coupled to receive signals from said position generators, and which is programmed to determine for each wheel a time-related mean values for said vertical distance;

    determine from the mean values of three wheels on two axles, a desired center position of a fourth wheel; and

    determine that an unequal tire pressure exists if an actual center position of said fourth wheel deviates by more than a given tolerance from the desired value; and

    generate an alarm in response to a determination that unequal tire pressure exists.

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