公开(公告)号：EP4040105A1

公开(公告)日：2022-08-10

申请号：EP20871940.1

申请日：2020-09-03

申请人： MAZDA MOTOR CORPORATION

发明人： INOUE, Taiga ,  FUKUNAGA, Akira ,  DOI, Yoko

IPC分类号： G01B11/00 ,  G01M17/013 ,  G01M17/04

摘要： A vehicle wheel assembly position measurement apparatus (1) measures, at each of at least three measurement positions in a circumferential direction, a distance in a vehicle width direction between each of plural measurement points located on a specified line that crosses a lateral surface of a tire section (23a) from an inner circumferential end to an outer circumferential end and respective one of distance measuring instruments (2) to (4), calculates an approximate curve indicating a relationship between a position in an extending direction of the specified line and the distance of each of the measurement points at the respective measurement position, calculates a rotation center position (O) of a wheel assembly (23) from a specific position of the approximate curve at the measurement position, and calculates a height position of the wheel assembly (23) relative to a vehicle body (22) from the rotation center position (O) and a height position of a specified portion of the vehicle body (22).