Development of methodology using DoE approach to improve Steering returnability of any Vehicle through virtual simulation 2019-28-0012
In driving, Steering is the input motion to the vehicle. The driver uses steering input to change the direction of the vehicle. During Parking or U turn bends the Steering is locked and later released to follow the desired path. Steering return ability is defined as the ratio of difference between steering wheel position at lock condition and steering wheel angle after 3 seconds of release to the steering wheel angle at lock condition. Having proper steering return ability characteristics has an important effect on vehicle steering characteristics. In this study, a full vehicle ADAMS model is prepared and virtual steering return ability have been simulated in Adams/Car for a Pickup truck vehicle. Simulated responses in the steering wheel angle have been validated by comparison with measurements. A Design of Experiment study is setup and Iterations are carried out to find the effect of Hard points and friction parameters. The effect of different parameters in terms of their importance is plotted and discussed. The objective is to establish the methodology to predict correct steering return ability before testing by tabulating the effects of various parameters.