| 講演抄録/キーワード |
| 講演名 |
2024-02-19 15:30
搭乗者の移動感覚の軽減による快適な自動運転環境の構築 ○清水祐輝・澤邊太志・神原誠之・藤本雄一郎・加藤博一(奈良先端大) ITS2023-59 IE2023-48 |
| 抄録 |
(和) |
自動運転時では,運転手は運転操作から解放され,搭乗者となり,移動時間をより自由に活用することが可能となる.車内での活動時においても搭乗者の安全性や効率性と共に快適性を考えることは重要である.本研究では,自動走行時の不快要因の一つである車両からの加速度刺激によって発生する搭乗者への移動感覚に着目し,走行中の移動感覚を軽減するアルゴリズムの提案によって搭乗者の快適性向上を目指す.移動感覚の軽減手法として,視覚と体感を制御するための没入型半球スクリーンとモーションプラットフォームを組み合わせたXRキャビンの開発と,そのキャビンを使った加速度刺激軽減アルゴリズムの提案を行う.29名の被験者による自動走行実験の結果では,提案手法によって,搭乗者の移動感覚が有意に軽減され,特にカーブで発生する左右方向の移動感覚が軽減される傾向が示された.そのため,加減速が滑らかな通常の自動走行環境において提案手法が有効であることが明らかになった. |
| (英) |
Automatic driving technology frees the driver from driving operations and allows the driver to freely perform activities inside the vehicle as a passenger. However, acceleration stimuli from the vehicle may cause discomfort during comfortable in-vehicle activities.
In a previous study, they focused on the passenger's sense of movement, which is one of the causes of discomfort, and reduced the sense of movement by controlling the acceleration stimuli perceived visually and physically. However, the wearing feeling of the HMD and VR sickness reduced comfort, and tilt control algorithm to reduce the sense of movement was not proposed.
In this study, as in previous studies, I focus on the reduction of the sense of movement by visual and physical control, and aim to build a system that comfortably reduces the sense of movement and to realize an tilt control algorithm. The proposed system, XR cabin, consists of an immersive hemispheric screen that enables VR presentation using omnidirectional images and a motion platform that tilts and controls the entire cabin, which consists of the screen and seats. By calculating from the entirety of the predicted acceleration stimulus, the cabin's tilt control algorithm can estimate the optimal tilt, considering tilt speed limitations and the characteristics of human acceleration perception.
Experiments were conducted on 29 subjects to verify the effectiveness of the proposed method in reducing the sense of movement and improving comfort. The experimental conditions were four conditions, combining the cases with and without visual control and with and without sensory control. In each condition, the subjects evaluated the sense of movement using a joystick in real time and a questionnaire after driving.
The results of the experiment showed that the sense of movement was significantly reduced in the condition with both visual and physical control compared to the condition without either control. In addition, the sense of movement in the direction of rotation tended to be reduced more in the condition with both visual and physical control than in the condition with only visual control. Therefore, combining both visual and physical control is effective in reducing the sense of movement. |
| キーワード |
(和) |
移動感覚制御 / 自動運転 / 搭乗者の快適性 / 複合現実 / モーションプラットフォーム / / / |
| (英) |
Sense of Movement / Autonomous Driving / Passengers Comfort / Mixed Reality / Motion Platform / / / |
| 文献情報 |
信学技報, vol. 123, no. 380, ITS2023-59, pp. 72-77, 2024年2月. |
| 資料番号 |
ITS2023-59 |
| 発行日 |
2024-02-12 (ITS, IE) |
| ISSN |
Online edition: ISSN 2432-6380 |
著作権に ついて |
技術研究報告に掲載された論文の著作権は電子情報通信学会に帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
| PDFダウンロード |
ITS2023-59 IE2023-48 |
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