Browse Publications Technical Papers 2011-01-0987
2011-04-12

Investigating and Improving Vehicle Transient Handling Performance 2011-01-0987

Steady-state handling design targets are generally defined in the design of suspension and steering systems, which are achieved through kinematic and compliance analysis. It has been found that some vehicles that meet all steady-state handling design targets do not necessarily perform well in subjective evaluations by experts or delight customers in the marketplace. The vehicles that customer find desirable exhibit the desired transient handling behavior, which is what the drivers experience for a majority of the driving time. It is therefore necessary to understand how to evaluate, and most importantly, how to design and tune the chassis for the desired transient handling behavior. In this study, the key mechanisms associated with transient handling performance are presented. The appropriate handling maneuvers are determined through which vehicle transient behavior can be evaluated. The proper response channels to monitor and measure are selected. Based on a comprehensive study using multi-body dynamics simulations, the influential design factors and tuning knobs to create the desired dynamics are examined and presented.

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