• CN: 11-2187/TH
  • ISSN: 0577-6686

Journal of Mechanical Engineering ›› 2026, Vol. 62 ›› Issue (8): 196-209.doi: 10.3901/JME.260278

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Road Friction Coefficient and Tire Cornering Characteristics Parameters Estimation Based on PMSM Sensorless Control

LI Haoran1, ZHOU Haichao1, WANG Guolin1, ZHANG Rongyun2, ZHAO Chunlai3   

  1. 1. School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang 212013;
    2. School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000;
    3. Dongfeng Motor Corporation Research & Development Institute, Wuhan 430000
  • Received:2025-06-03 Revised:2025-12-10 Online:2026-04-20 Published:2026-06-12

Abstract: Aiming at the insufficient estimation accuracy of road adhesion coefficient and tire cornering characteristics parameters for distributed drive electric vehicle(DDEV), the road adhesion coefficient and tire cornering characteristics parameters estimation are constructed by combining multi-sensor fusion and physical constraint neural network modeling theories. First, the maximum correntropy(MC) criterion is integrated with square-root cubature quadrature Kalman filter(SCQKF) to construct the MC-SCQKF algorithm, where the measured covariance matrix is optimized and quadrature cubature sampling is employed to achieve accurate estimation of PMSM speed and rotor position under non-Gaussian noise, simultaneously enhancing the robustness of the system and the convergence of state estimation. Second, enabling real-time estimation of yaw rate, sideslip angle, longitudinal speed, and road friction coefficient through MC-SCQKF, and they are utilized as features to develop the physics-informed neural network for tire lateral force prediction(TirePINN) model. Finally, the cornering stiffness of front and rear tires is fitted using predicted lateral forces and calculated slip angles by the estimated vehicle state parameters, forming a self-validating closed-loop observation system for tire cornering characteristics. Hardware-in-the-loop tests show fitted errors of 1.49%(front) and 1.37%(rear) for tire cornering stiffness.

Key words: distributed drive electric vehicle, square-root cubature quadrature Kalman filter, physics-informed neural network, road friction coefficient, tire cornering characteristic parameters

CLC Number: