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1. (WO2018143759) METHOD FOR ESTIMATING ROAD SURFACE FRICTION COEFFICIENT OF TIRE AND DEVICE FOR ESTIMATING ROAD SURFACE FRICTION COEFFICIENT OF TIRE IN HIGH SPEED NORMAL DRIVING STATE

Pub. No.:    WO/2018/143759    International Application No.:    PCT/KR2018/001543
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Wed Feb 07 00:59:59 CET 2018
IPC: B60W 40/068
B60W 40/105
B60W 40/076
B60W 40/10
Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
서울대학교 산학협력단
Inventors: YI, Kyongsu
이경수
KIM, Taewoo
김태우
SEO, Hotae
서호태
Title: METHOD FOR ESTIMATING ROAD SURFACE FRICTION COEFFICIENT OF TIRE AND DEVICE FOR ESTIMATING ROAD SURFACE FRICTION COEFFICIENT OF TIRE IN HIGH SPEED NORMAL DRIVING STATE
Abstract:
The present invention relates to a friction coefficient estimating method and a friction coefficient estimating device to estimate a road surface friction coefficient of a tire in a state in which a vehicle is normally driven at a high speed, the method comprising the steps of: acquiring vehicle state information including at least one of engine state information, transmission state information, and chassis state information, from a sensor installed in the vehicle and pre-configured specifications of the vehicle; estimating a longitudinal slip ratio, normal force, and longitudinal force of a tire mounted on each wheel of the vehicle, by using the acquired vehicle state information; and estimating a road surface friction coefficient of the tire by using the estimated longitudinal slip ratio, normal force, and longitudinal force.