Tire-Road Friction Coefficient Estimation Method Design for Intelligent Tires Equipped with Three-Axis Accelerometer

2021 ◽  
Vol 5 (3) ◽  
Author(s):  
Zhenyu Zou ◽  
Xudong Zhang ◽  
Yuan Zou ◽  
Basilio Lenzo
Keyword(s):  
Friction Coefficient ◽  
Estimation Method ◽  
Coefficient Estimation ◽  
Road Friction ◽  
Road Friction Coefficient

Slip-Slope Estimation of Mutative Road Friction Coefficient Based on Unscented Particle Filter

2012 ◽  
Vol 249-250 ◽  
pp. 337-342
Author(s):  
Fen Lin ◽  
Chao Huang
Keyword(s):  
Friction Coefficient ◽  
Particle Filter ◽  
Dynamic Model ◽  
Estimation Method ◽  
Accurate Information ◽  
Vehicle Dynamic ◽  
Unscented Particle Filter ◽  
Road Friction ◽  
Vehicle Dynamic Model ◽  
Road Friction Coefficient

The accurate information of road friction coefficient allows the control algorithm in vehicle activity system to adapt to external driving conditions. This paper developed a slip-slope friction coefficient estimation method based on Unscented Particle Filter. A 7-DOF non-linear vehicle dynamic model was established. The normal force of tire was approximately calculated from the vehicle dynamic model; the slip and longitudinal force of tire were estimated through a combination of tire mechanical model and UPF(Unscented Particle Filter) method. Finally slip-slopes of different adhesion level roads was obtained. Through virtual test environment in ADAMS/Car, the estimation method proposed was verified to be effective and reliable under various road condition. From the method the relationships between the slip-slope and road friction coefficient are achieved.

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