DETERMINATION SPACE CREATION METHOD, DETERMINATION SPACE UPDATE METHOD, ROAD SURFACE STATE DETERMINATION METHOD, DETERMINATION SPACE CREATION DEVICE, AND ROAD SURFACE STATE DETERMINATION DEVICE

WIPO Patent Application WO/2023/112487

A1

A method according to the present invention is for, by using information on the road surface state of a road surface on which a vehicle is traveling and output waveform data obtained by measuring a change in physical quantity of tires in the vehicle during traveling, creating a determination space for determining the road surface state from the output waveform data. The method involves: acquiring the output waveform data for a plurality of different road surface states and traveling conditions at a time of measuring the output waveform data (S11); classifying the output waveform data into a plurality of groups on the basis of the traveling conditions (S12); performing machine learning for each of the groups using training data in which information on the road surface states are associated with the output waveform data (S13, 14, 15); and thereby creating a determination space corresponding to each of the groups (S16). Accordingly, this method makes it possible to determine the road surface state with high accuracy.

FUDO HEISHIRO (JP)
SEO SHINICHI (JP)
SHINOHARA EIJI (JP)
ICHISE SHINYA (JP)
ITO NOZOMI (JP)
KIM DONG GU (JP)
MIYASHITA NAOSHI (JP)
HIGUCHI TADASHI (JP)

PCT/JP2022/039457

June 22, 2023

October 24, 2022

Click for automatic bibliography generation  

ALPS ALPINE CO LTD (JP)
YOKOHAMA RUBBER CO LTD (JP)

G01W1/00; B60C19/00; B60W40/06

WO2020004471A1

2020-01-02

JP2018004419A	2018-01-11
US20200158692A1	2020-05-21
US20180095462A1	2018-04-05

OKUBO, Katsuyuki (JP)

View/Download PDF      PDF Help

Previous Patent: BIPOLAR TRANSISTOR AND SEMICONDUCTOR DEVICE

Next Patent: METHOD FOR PRODUCING ETHYL ACETATE