Asymmetric 3link braking stability

[jerome]

I am considering making an offset upper link as an acceleration link (collapsible, but not extendable) and a centered upper link as a brake link (extendable, but not collapsible) to decouple braking and acceleration geometry. The acceleration link will run downhill from rearend to chassis (high anti-squat under acceleration) and the brake link will be flatter (high SVSA length under braking). The centered upper link takes care of any asymmetry under braking.

A couple questions:

1. Acceleration and brake links will travel along different arcs.
Chassis pickup point heights are different (to create high anti-squat and high SVSA length)
Chassis pickup points are slightly different longitudinally (packaging)
Rearend pickup point heights are slightly different (packaging)
Rearend pickup points are slightly different longitudinally (packaging)

I have not run through a simulation yet to determine whether there will be kinematic bind. Anybody have guesses on whether this arrangement works? The commercially available acceleration and brake links do not seem to have more than 0.5" of travel in the collapse/extension non-load directions.



2. Any other issues with this concept?