I recently discovered in a very niche situation (stupidly overloaded 
vehicle with largish rear bias)(at 2am fwiw) that speed wobbles in a 
car could be instantly corrected by applying a ~ 2 Hz oscillation to 
the steering wheel, approx 30mm movement range on a reasonably low 
geared steering system.

As I don't have vehicles / situations which have speed wobble 
available every day I can't retry this in a hurry. I was wondering if 
anyone else had heard of this "cure" or of how universally applicable 
it was.

Results were "like magic" - at one moment a slowly building (slow in 
this case) oscillation that required intelligent ongoing correction 
and the next moment instant stability. No head shaking or slowly 
coming right but an instant transition to stability.

The friends who I have asked about this all lecture me about 
overloading, which is fine, but fail to comment on the "wobble cure".



        Russell



 

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