Estimation of Tire-Road Friction Using Tire Vibration Model

Road Friction Virtual Sensing: A Review of Estimation Techniques with Emphasis on Low Excitation Approaches

“…This estimation structure is also addressed in [122]. In [40] the authors revisit the linearised pneumatic trail model (51). In this work Hsu et al provide a comprehensive explanation regarding the selection of the linearised pneumatic trail model.…”

“…Such results correlate with the conclusions presented in Gustafsson [6] and Muller et al [7], where it was remarked that the slip slope presents significant variations depending on the tyre wear or tyre pressure. Nevertheless, in spite of these difficulties, a number of recently published papers have focused on estimating the coefficient of friction assuming a correlation between the tyre frequency responses, slip slope, and road friction potential [4,5,50,51,130]. It can be understood that there is a lack of standardised experiments that monitor all the parameters that may influence the tyre performance (tyre temperature, inflation pressure, tread depth, presence of third bodies etc.…”

“…Umeno et al [51] presented a method for detecting the coefficient of friction by monitoring the tyre rotational vibration. By using a simple tyre rotational model, the authors derived a transfer function relating the road disturbances ∆T d and the wheel speed responses ∆ω.…”

“…The limitations exhibited by slip-based approaches (mainly the necessity of generating large slip values) have encouraged researchers to explore low frequency [46][47][48][49] and high frequency [4,5,50,51] vibration-based approaches. The main objective of these solutions is to achieve an accurate grip potential identification during regular driving conditions.…”

Sliding-mode-based parameter identification with application to tire pressure and tire-road friction

“…The least-squares method has been applied to estimate the extended braking stiffness (XBS), which is the slope of the friction force with respect to the slip velocity at the operational point, using the measurement of wheel angular velocity (Ono et al, 2003). Umeno et al (2002) have proposed an estimation method for tire-road friction that estimates the frequency characteristics of the wheel speed vibration. Carlson and Gerdes (2005) have developed an estimator of longitudinal stiffness and effective wheel radius that uses the wheel speed sensor and *Corresponding author.…”