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Effect of component stiffness and deformation on vehicle lateral drift during braking

This research investigates the effects of compliant vehicle sub-frame and suspension arm components on the characteristics of a vehicle experiencing steering drift during straight-line braking. The research confirms that variation of component stiffness and interactions within components give rise to side-to-side deflections which resulted in braking instability. It was shown that components whose stiffness varies from side to side can cause different side to side deflections that can induce and influence the variation of suspension characteristics. The most significant influence of component deflections were noted for the front wheel toe steer angles, which were influenced by the lateral deflections of the steering carrier, gear and tie rods.