The Influence of Lateral, Roll and Yaw Motion Gains on Driving Performance on an Advanced Dynamic Simulator

摘要

The present study investigates the respective roles of lateral acceleration, and lateral, roll and yaw motions for self-motion perception and cornering behavior on a dynamic driving simulator. A recent study advises the use of motion gains (in the range 0.4 to 0.75) on these three components in order to improve self-motion perception. However, the role of each component in self-motion perception has not been individually addressed and the same motion gain is proposed for all components, independently of the level of acceleration. The aim of the present study is to extend this previous result by systematically reassessing the motion gains for the three lateral motion components for several levels of acceleration. A slalom task was chosen (with the level of lateral acceleration modified by changing the distance between posts) so that cornering behavior and self-motion perception could be assessed for various settings of the three parameters. The main results suggest that 1/ lateral motion gain should be decreased when lateral acceleration is increased; 2/ roll motion gain should be set to 1 to improve and facilitate driving perception and performance and 3/ the yaw component has a more controversial role but it seems to facilitate driving control without influencing motion perception. In conclusion, this study shows that the three motion components generally used to simulate lateral acceleration should be set individually and that use of the same motion gain for all three is not the best solution for improving the realism of the simulator. Therefore, it is proposed that each parameter be dynamically set based on the driving conditions.