> If you could develop a system to steer the car optimally at all times then
> ackerman would not exist and each wheel would steer independantly based on
> the corner, weight on that wheel, camber angle, and the slip angle needed
to
> develope maximum cornering force for those conditions.
so you are saying, add three more steering wheels to my car might make it
faster? eggscellent.
-james
ps thanks for the explanation... that jives with what i had been
understanding
----- Original Message -----
From: "Ian Green" <iagreen@ucdavis.edu>
To: "ba-autox" <ba-autox@autox.team.net>
Sent: Wednesday, January 08, 2003 3:53 PM
Subject: RE: Ackerman
> Changing the rack
> > position doesn't
> > change those lines so the Ackerman stays the same,>
> >
>
>
> Those lines are just used to determine reference for "true" ackerman and
> percentages of. Moving the rack fore/aft will affect the ackerman as what
> really results is and increase or decrease of the rate of change of the
> angle between the steering components (rack, tierods, steering arm). The
> difference in the rate of change is what causes one wheel to steer more
than
> the other. On a rear-steer system moving the rack rearward from a true
> ackerman position will result in "more than" true ackerman (i.e. 110%) and
> moving it forward will bring it closer to parallel steer.
>
> If you could develop a system to steer the car optimally at all times then
> ackerman would not exist and each wheel would steer independantly based on
> the corner, weight on that wheel, camber angle, and the slip angle needed
to
> develope maximum cornering force for those conditions. But for now you can
> only design for the corner that you percieve as the most worthy.
>
> Or just throw a fat bar in the front, lift the inside wheel off the ground
a
> say "screw the calculations"
>
> Ian Green
> 2003 Team Coleader
> Suspension/Steering Leader
> UC Davis Formula SAE
> http://mae.ucdavis.edu/~fsae
> 97 Honda Civic CX
> http://www.geocities.com/stscxr
>
> "I never let school get in the way
> of my education." - Mark Twain
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