An analytical approach to the prediction of handling qualities of vehicleswith advanced steering control system using multi-input driver model

This paper describes nrl analytical approach to predict the subjective rati ng on handling qualities of actively controlled vehicles. The approach was applied to the evaluation on handling qualities of 4 wheel steering vehicle s. The validity of the approach is confirmed by comparison of the predicted results with test data. The essential feature of the approach is to use al l objective function that takes into account three principal factors. i.e., the task performance, the driver's mental workload and his or her physical workload, to predict analytically the subjective ratings. The findings ind icate that the predicted rating directly corresponds to the driver's subjec tive ratings obtained through the proving ground test with a good correlati on.