A New Estimation Approach of Road Friction Coefficient and Optimum Wheel Slip Ratio for Longitudinal and Lateral Vehicle Dynamics Control using Active Steering and Braking Systems

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SOLTANI A.; AZADI SH.

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Paper Information

Journal: JOURNAL OF SOLID AND FLUID MECHANICS Year:2019 | Volume:9 | Issue:3 Page(s): 231-247

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Title

A New Estimation Approach of Road Friction Coefficient and Optimum Wheel Slip Ratio for Longitudinal and Lateral Vehicle Dynamics Control using Active Steering and Braking Systems

Author(s)

SOLTANI A. | AZADI SH. | Issue Writer Certificate

Keywords

Integrated Vehicle Dynamics ControlQ1

Active BrakingQ1

Active Front SteeringQ1

Adaptive Neuro-fuzzy SystemQ1

Estimation of Optimum Wheel Slip RatioQ1

Abstract

In this paper, an integrated control system of longitudinal, lateral and yaw vehicle dynamics is presented using Active Braking and Active Front Steering (AFS) systems. The proposed Active Braking system based on sliding mode controller, includes two kinds of working modes of anti-locked brake and (ABS) and an electronic stability control (ESC) and a fuzzy controller has been used in the AFS system. Also, a nonlinear estimator utilising unscented Kalman filter is applied to estimate the vehicle dynamics variables. According to the estimated values and Dugoff tire model, the tire-road friction coefficient is calculated. An adaptive neuro-fuzzy inference system (ANFIS) is proposed to obtain optimum wheel slip ratio. In the simulation part, first, the hard braking action in straight line on the roads with various friction coefficients is investigated, which results in high precision of the estimator for the friction coefficient and optimum wheel slip ratio, and greatly reduced the distance and stopping time in comparison to the vehicle without estimator. Then, simulation of split-μ roads has been carried out which demonstrates the integrated control of ABS, ESC and AFS systems can, in addition to improving the lateral and yaw stability, also decrease the stopping distance.

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APA: Copy

SOLTANI, A., & AZADI, SH.. (2019). A New Estimation Approach of Road Friction Coefficient and Optimum Wheel Slip Ratio for Longitudinal and Lateral Vehicle Dynamics Control using Active Steering and Braking Systems. JOURNAL OF SOLID AND FLUID MECHANICS, 9(3 ), 231-247. SID. https://sid.ir/paper/397570/en

Vancouver: Copy

SOLTANI A., AZADI SH.. A New Estimation Approach of Road Friction Coefficient and Optimum Wheel Slip Ratio for Longitudinal and Lateral Vehicle Dynamics Control using Active Steering and Braking Systems. JOURNAL OF SOLID AND FLUID MECHANICS[Internet]. 2019;9(3 ):231-247. Available from: https://sid.ir/paper/397570/en

IEEE: Copy

A. SOLTANI, and SH. AZADI, “A New Estimation Approach of Road Friction Coefficient and Optimum Wheel Slip Ratio for Longitudinal and Lateral Vehicle Dynamics Control using Active Steering and Braking Systems,” JOURNAL OF SOLID AND FLUID MECHANICS, vol. 9, no. 3 , pp. 231–247, 2019, [Online]. Available: https://sid.ir/paper/397570/en

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