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Method for determining an actual level of a vehicle

  • US 10,239,379 B2
  • Filed: 09/02/2016
  • Issued: 03/26/2019
  • Est. Priority Date: 09/03/2015
  • Status: Active Grant
First Claim
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1. A method for determining an actual level of a vehicle to regulate a distance between a superstructure and a wheel carrier, said method comprising:

  • determining an actual level of the vehicle as a function of a distance between the wheel carrier of the vehicle and the superstructure of the vehicle,wherein the distance between the wheel carrier and the superstructure is determined by means of a signal detected by at least one chassis sensor, wherein said at least one chassis sensor is a spring travel sensor coupled to a spring damper mass system of an active body suspension, said signal including a first signal portion that corresponds to an own movement of the vehicle, a second signal portion that corresponds to extended unevennesses on a road on which the vehicle actually drives, and a third signal portion that corresponds to an excitation by the road on which the vehicle actually drives;

    filtering the first and second signal portions out of the signal detected by the at least one chassis sensor by means of a filter function;

    calculating the actual level of the vehicle from a difference between the filtered signal without the first and second signal portions and the signal detected by the at least one chassis sensor;

    providing the actual level of the vehicle to the active vehicle body suspension system; and

    actively regulating the distance between the superstructure and the wheel carrier by the active vehicle body suspension system.

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