US 11,932,263 B2
Travel sickness estimation system, moving vehicle, travel sickness estimation method, and travel sickness estimation program
Yuta Moriura, Osaka (JP); Yoshitaka Nakamura, Osaka (JP); Yasufumi Kawai, Osaka (JP); Hiroyuki Handa, Osaka (JP); Yohei Morishita, Kanagawa (JP); Toru Okino, Osaka (JP); Hiroyuki Hagino, Osaka (JP); Toru Sakuragawa, Osaka (JP); and Satoshi Morishita, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 16/980,222
Filed by PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
PCT Filed Mar. 13, 2019, PCT No. PCT/JP2019/010203
§ 371(c)(1), (2) Date Sep. 11, 2020,
PCT Pub. No. WO2019/177002, PCT Pub. Date Sep. 19, 2019.
Claims priority of application No. 2018-047188 (JP), filed on Mar. 14, 2018.
Prior Publication US 2021/0031789 A1, Feb. 4, 2021
Int. Cl. B60W 50/00 (2006.01); A61B 5/11 (2006.01); A61B 5/16 (2006.01); A61M 21/02 (2006.01); B60H 1/00 (2006.01); B60H 3/00 (2006.01); B60N 2/02 (2006.01); B60W 50/14 (2020.01); A61B 5/024 (2006.01); A61M 21/00 (2006.01)
CPC B60W 50/0098 (2013.01) [A61B 5/1114 (2013.01); A61B 5/1116 (2013.01); A61B 5/1121 (2013.01); A61B 5/165 (2013.01); A61M 21/02 (2013.01); B60H 1/00742 (2013.01); B60H 3/0007 (2013.01); B60H 3/0085 (2013.01); B60N 2/02 (2013.01); B60W 50/14 (2013.01); A61B 5/02444 (2013.01); A61B 2562/0247 (2013.01); A61M 2021/0016 (2013.01); A61M 2021/0022 (2013.01); A61M 2021/0066 (2013.01); A61M 2205/3303 (2013.01); A61M 2205/3553 (2013.01); A61M 2205/3584 (2013.01); B60W 2540/22 (2013.01); B60W 2540/221 (2020.02); B60W 2540/223 (2020.02); B60W 2756/10 (2020.02)] 18 Claims
OG exemplary drawing
 
1. A travel sickness estimation system comprising:
a controller including:
an estimation unit configured to perform estimation processing of estimating, based on person information indicating conditions of a person who is on board a moving vehicle, whether or not the person is in circumstances that would cause travel sickness for the person; and
an output unit configured to output a result of the estimation processing performed by the estimation unit; and
a prevention system configured to receive the result of the estimation processing from the output unit, wherein:
the controller is implemented as a combination of one or more processors and one or more memories,
the estimation unit is configured to perform the estimation processing with reference to not only the person information but also vehicle information indicating conditions of the moving vehicle,
the person information includes posture information indicating the person's posture,
the person's posture is represented by a tilt angle defined by a center axis of the person's head with respect to a center axis of the person's body trunk and a tilt angle defined by the center axis of the person's body trunk with respect to a horizontal plane,
the vehicle information includes behavior information indicating a behavior of the moving vehicle,
the prevention system is configured to, when the result of the estimation processing indicates that the person is in the circumstances that would cause travel sickness for the person, perform prevention processing of preventing the person from suffering travel sickness,
the prevention system includes a driving unit installed in a seat of the moving vehicle and configured to change a surface shape of the seat, and
the estimation unit is configured, in the estimation processing, to
when finding a tilt angle or the moving vehicle's traveling direction or propulsion greater than a corresponding reference value, respectively, obtain magnitude of a gap between the behavior of the moving vehicle and the person's posture to increase an estimated value about travel sickness according to the magnitude of the gap, and
when the magnitudes of the gap between the behavior of the moving vehicle and the person's posture are accumulated to make the estimated value equal to or greater than a threshold value, make a determination that the person is in circumstances that would cause travel sickness for the person.