Title:
ATTACK ANGLE ESTIMATION METHOD AND ATTACK ANGLE ESTIMATION DEVICE
Document Type and Number:
Japanese Patent JP2023117806
Kind Code:
A
Abstract:
To provide an attack angle estimation method and the like capable of obtaining excellent estimation accuracy in a wide region.SOLUTION: An attack angle estimation method is configured to acquire lateral pressure Q of right and left wheels, longitudinal tangential force T, and a contact phase difference Δθ, which is an angle difference around an axle of contact positions between the right and left wheels and rails, as observation amounts based on output of strain gauges provided on right and left wheels 31 of a railway vehicle 1, acquire a rail curvature of the track on which the wheels travel, acquire the traveling speed of the railway vehicle, and estimate an attack angle and the contact positions of the right and left wheels by using a plant model and an observer of the right and left wheels.SELECTED DRAWING: Figure 2
Inventors:
KUNIYUKI SHOYA
HONDO TAKATOSHI
SUZUKI MITSUGI
NAKANO KIMIHIKO
HONDO TAKATOSHI
SUZUKI MITSUGI
NAKANO KIMIHIKO
Application Number:
JP2022020567A
Publication Date:
August 24, 2023
Filing Date:
February 14, 2022
Export Citation:
Assignee:
RAILWAY TECHNICAL RES INST
UNIV TOKYO
UNIV TOKYO
International Classes:
B61K9/12; B61K13/00; G01B7/30
Attorney, Agent or Firm:
Watanabe Atsushi
Hiroaki Inada
Hiroaki Inada