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THE EFFECT OF KING PIN OFFSET ON DIRECTIONAL STABILITY WHEN BRAKING ON A ROAD SURFACE WITH SPLIT FRICTION

UNDERSOEKNING AV STYRRADIENS INVERKAN VID BROMSNING PAA VAEGBANA AV TYP "SPLIT-FRICTION"

The effects of the so-called king pin offset on lateral deviation when braking on a road surface with split friction were studied. By split friction is meant when a car is braked with the wheels on one side on a rough surface and the wheels on the other side on a slippery surface. Cars with positive king pin offset were compared with cars with negative king pin offset. The braking trials with a free steering wheel suggest that a car with a negative king pin offset experiences a smaller amount of lateral deviation than a car with a positive king pin offset. The braking trials with fixed steering wheel did not show any connection between the value of the king pin offset and the size of the lateral deviation. A long wheel base and a small track should, however, be beneficial with regard to directional stability in this type of braking trial. The results obtained in the braking trials with fixed steering wheels verify, in the main, this statement and suggest that this condition is of greater significance for the size of the lateral deviation than the value of the king pin offset. /TRRl/

Language

  • Swedish

Media Info

  • Features: Figures; Tables;
  • Pagination: 15 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00146434
  • Record Type: Publication
  • Source Agency: Swedish National Road and Traffic Research Institute
  • Report/Paper Numbers: Report No. 94 Monograph
  • Files: ITRD, TRIS
  • Created Date: Sep 20 1977 12:00AM