A Comparison between Caster and Lean Angle in Generating Variable Camber

Paper #:
  • 2015-01-0067

Published:
  • 2015-03-10
DOI:
  • 10.4271/2015-01-0067
Citation:
Vo, D., Jazar, R., and Fard, M., "A Comparison between Caster and Lean Angle in Generating Variable Camber," SAE Technical Paper 2015-01-0067, 2015, doi:10.4271/2015-01-0067.
Pages:
7
Abstract:
A variation in the camber of an automotive wheel is desired to compensate a side-slip force change owing to normal load transfer when the car is cornering. The camber of a steered wheel can be varied by adjusting caster or lean angle which are the representations of steering axis orientation. Thus, a smart camber can be created by a variable caster or lean angle. Choosing which parameter among the two angles to be variable is very important and dependent on its different effects. Here, homogeneous transformation is employed to establish camber as a function of caster, lean angle, and steering angle in the general case. A comparison between caster and lean angle based on different criteria is then made. The comparison shows that a variable caster is much better and more feasible than a variable lean angle in generating a smart camber.
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