This study investigates the influence of different variations of active roll stabilization (curve tilting, roll compensation and passive) and rear wheel steering (with and without) on the severity of motion sickness (MS) symptoms experienced by vehicle occupants, as there is a hint for reduction of MS based on past studies. A simulator study with 50 participants (age 20-60, 50% women, 50% men) was conducted. The simulator used features eight DOF and is able to reproduce the maneuvers realistically, which is necessary to reduce the probability of cross couplings with simulator sickness. There were two scenarios: driving on a winding country road and highway driving with frequent lane changes. MS severity was measured subjectively via questionnaire and objectively via heartrate. In addition temperature data was collected. Even though MS symptoms have been evoked, no significant effects were found in case of suspension settings for MS in general. For single symptoms nausea and vertigo, slight significances were detected between the roll compensated car and the other variants. High lateral acceleration led to significantly higher motion sickness ratings for all suspension variants and should be avoided in trajectory planning for autonomous vehicles. In conclusion there is no benefit by the use of active roll stabilization and rear wheel steering systems in case of motion sickness, when driving in similar driving conditions as in this study. But there is also no negative effect and there is some evidence, that another kind of control algorithm may have a positive effect.
The influence of active suspension systems on motion sickness of vehicle occupants
2020-09-20
396741 byte
Conference paper
Electronic Resource
English
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