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Corrective instructions are then sent to the suspension motors and reduction mechanisms. The reduction mechanism gears activate to adjust suspension rigidity, torquing the stabilizer bars and thus increasing sway resistance and reducing body roll movements. [5]
An anti-roll bar (roll bar, anti-sway bar, sway bar, stabilizer bar) is an automobile suspension part that helps reduce the body roll of a vehicle during fast cornering or over road irregularities. It links opposite front or rear wheels to a torsion spring using short lever arms for anchors.
Not very easy to adjust for reduced roll stiffness, but increasing it is easily done by adding an anti-roll bar; Welds see a lot of fatigue, may need a lot of development; Not much recession compliance: can be poor for impact harshness, and will cause unwelcome toe changes (steer effects)
A disadvantage is that torsion bars, unlike coil springs, usually cannot provide a progressive spring rate. In most torsion bar systems, ride height (and therefore many handling features) may be changed by simply adjusting bolts that connect the torsion bars to the frame cross member. In most cars with this type of suspension, swapping torsion ...
The assembly can be further simplified, if needed, by substituting an anti-roll bar (torsion bar) for the radius arm. [14] For those reasons, it has become almost ubiquitous with low cost manufacturers. Furthermore, it offers an easy method to set suspension geometry. [15] Many modern versions replace the lower control arm with a wishbone.
A stiffer anti-roll bar generates a bigger slip angle on the outside tyre. So the end of the car with the stiffer anti-roll bar is likely to have the bigger slip angle. If the front has the bigger slip angle then the car tends to understeer (that big slip angle means the tyre doesn't grip and it slides straight ahead).
[4] The complete rear suspension assembly is carried in a steel crossbeam cradle (shown ghosted in the diagram below), which is attached to the vehicle body via four rubber vee-blocks and also carries the differential (blue) and inboard brakes (red).
LHM has to squeeze back and forth through this valve which causes resistance and controls the suspension movements. It is the simplest damper and one of the most efficient. Ride height correction (self leveling) is achieved by height corrector valves connected to the anti-roll bar, front and rear.