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Apparatus and method for detecting rotational imbalance of vehicle roadwheels

  • US 5,269,186 A
  • Filed: 12/24/1990
  • Issued: 12/14/1993
  • Est. Priority Date: 12/24/1990
  • Status: Expired due to Fees
First Claim
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1. An apparatus for detecting rotational imbalance of a roadwheel assembly of a vehicle having a sprung and unsprung mass, comprising:

  • force measurement means for sensing a combined force exerted between the road upon which the vehicle is traveling and said sprung mass of said vehicle, said combined force including forces due to the sprung vehicle mass, road surface inputs and the rotational imbalance of said roadwheel assembly, said force measurement means comprising means for generating a combined force signal corresponding to said sensed combined force; and

    processor means responsive to said combined force signal for determining the dynamic rotational balance condition of said roadwheel assembly.

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