Ezio_Auditore
12-08-2011, 11:50 PM
hello!
i am designing the steering geometry of our car for the first time, and i decided on front steer (tie rod outer pivot ahead of the LBJ and below the wheel center). some topics and forums read, that to have zero bump-steer, the tie rod inner and outer pivots should coincide with the pivot points of the lower control arm (LBJ and chassis pivot) but in order to achieve 100% ackerman, the line of the steering arms must intersect on the rear axle, which pushes the tie rod outer joint further into the wheel. now in the front view, the outer tie rod pivot will not be coinciding with the LBJ hence causing bump steer. how do i arrive at a solution ?
also, while deciding the ackerman geometry, do i have to extend the line joining the outer tie rod pivot to the center of the rear axle or do i have to extend a line joining the tie rod outer pivot and the steering axis center point in the top view to the center of the rear axle?
any suggestions in this regard will be highly appreciated.....
regards...
i am designing the steering geometry of our car for the first time, and i decided on front steer (tie rod outer pivot ahead of the LBJ and below the wheel center). some topics and forums read, that to have zero bump-steer, the tie rod inner and outer pivots should coincide with the pivot points of the lower control arm (LBJ and chassis pivot) but in order to achieve 100% ackerman, the line of the steering arms must intersect on the rear axle, which pushes the tie rod outer joint further into the wheel. now in the front view, the outer tie rod pivot will not be coinciding with the LBJ hence causing bump steer. how do i arrive at a solution ?
also, while deciding the ackerman geometry, do i have to extend the line joining the outer tie rod pivot to the center of the rear axle or do i have to extend a line joining the tie rod outer pivot and the steering axis center point in the top view to the center of the rear axle?
any suggestions in this regard will be highly appreciated.....
regards...