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Trailer brake anti-swing system and method

  • US 5,033,798 A
  • Filed: 12/20/1989
  • Issued: 07/23/1991
  • Est. Priority Date: 12/20/1989
  • Status: Expired due to Fees
First Claim
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1. A method for sensing conditions indicative of the onset of a trailer swing event in an articulated vehicle (10) comprising:

  • determining the values of input signals indicative of articulation angle (AA) and at least one of rate of change of articulation angle (d2 AA/dt) and rate of change of rate of change of articulation angle (d2 AA/dt2),comparing the direction of rotation of articulation angle to the direction of rotation of one of said at least one of rate of change of articulation angle and rate of change of rate of change of articulation angle, andcomparing the absolute value of at least one of said rate of change of articulation angle and rate of change of rate of change of articulation angle to the absolute value of a reference value.

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