How do the fundamental suspension angles (toe, camber and caster) affect steering effort?
How do the fundamental suspension angles (toe, camber and caster) affect steering effort?
(OP)
By "steering effort", I mean the force required to deflect the steering wheel by a certain angle to the left or right. I'd like a qualitative description of how the three fundamental steering system angles (toe, camber and caster) affect the force needed to deflect the steering wheel of a road car moving at medium speed (~60km/h), assuming no power steering assistance is present.





RE: How do the fundamental suspension angles (toe, camber and caster) affect steering effort?
While the angles you have nominated may subtly alter parameters in the equation, it'll be slight and dependent on the baseline configuration.
This is easily examined in any competent vehicle dynamics package, and I dare say a good bicycle model would do it.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: How do the fundamental suspension angles (toe, camber and caster) affect steering effort?
Doesn't mechanical trail depend on caster angle? I'm not familiar with automotive symbols - is ay the angle of yaw of the wheel?
P.S. I only need a qualitative description of the effects (eg. more positive toe increases/decreases steering effort, and so on). I'm not designing anything - rather I'm troubleshooting an already existing design
RE: How do the fundamental suspension angles (toe, camber and caster) affect steering effort?
ay is lateral acceleration.
Looking at your other post, tire pressure is the most likely cause.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: How do the fundamental suspension angles (toe, camber and caster) affect steering effort?
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: How do the fundamental suspension angles (toe, camber and caster) affect steering effort?
Cheers,
dynatune, www.dynatune-xl