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Automotive Engineering ›› 2024, Vol. 46 ›› Issue (1): 50-60.doi: 10.19562/j.chinasae.qcgc.2024.01.006

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Physiological Manifestation and Relief Method of Passenger’s Carsickness

Yingzhang Wu1,Ying Lin1,Wenbo Li2,Yalan Yu1,Guofa Li1,Gang Guo1()   

  1. 1.School of Mechanical and Vehicle Engineering,Chongqing University,Chongqing  400044
    2.School of Vehicle and Mobility,Tsinghua University,Beijing  100084
  • Received:2023-05-10 Online:2024-01-25 Published:2024-01-23
  • Contact: Gang Guo E-mail:guogang@cqu.edu.cn

Abstract:

In order to enhance the comfort and user acceptance of intelligent connected vehicles, a cognitive process model for passenger carsickness mitigation is established in this paper and an olfactory stimulation-based mitigation strategy is proposed. Firstly, a screening experiment of olfactory stimulation materials for carsickness relief is designed and carried out, fully considering occupant satisfaction as well as the functional requirements of carsickness relief, to select the odor type and concentration of olfactory stimulation materials. Then, a carsickness mitigation experiment based on a real car is carried out to investigate the mapping relationship between different degrees of carsickness and physiological representations and further validate the efficiency of the olfactory mitigation method. The results show that the subjective carsickness degree is positively correlated with GSR activation and negatively correlated with EEG asymmetry. Moreover, releasing 20% ginger blossom odor for 10 seconds can effectively relieve carsickness symptoms, with an average relief effect of 22.17%, which is verified in terms of subjective and objective dimensions.

Key words: carsickness, relief method, olfaction stimulation, electroencephalography, galvanic skin response