Vehicle which are turning or maneuvering at high speeds are susceptible to sliding and subsequently deviate from desired path. In this paper the dynamics governing the Yaw/Roll behavior of a vehicle has been simulated. Two different simulations have been used one for the real vehicle, for which a fuzzy controller is designed to increase its directional stability property. The other simulation i...

Off-road motorcycles transit over significantly irregular terrains facilitated by their suspension system. The optimisation of is an open topic. On one hand, on-road need to be extended consider off-road peculiarities such as larger amplitude motion and a standing rider, provide predictions. the other objective methodology verify predictions needed since current practice rely on subjective perc...

This paper presents a fixed-time neuro-adaptive control design for class of uncertain under-actuated nonlinear systems (UNS) using non-singular fast terminal sliding mode (TSMC) with radial basis function (RBF)-based estimator to achieve the convergence and robustness against uncertainties. The mathematical model considered is reduced into an equivalent regular form. A TSMC designed transformed...

In this paper, we consider the problem of estimating unknown parameters of the so-called Pacejka’s model of a tyre from measurements of the car behavior. Differently from other estimation problems, the tyre parameters may change during the car life due to tyre aging, the variability of the inflation pressure, or many further reasons. Rather then solving a single estimation problem, thus, the is...

This paper refines the two-regime transient theory developed by Romano et al. [Romano L, Bruzelius F, Jacobson B. Unsteady-state brush theory. Vehicle Syst Dyn. 2020;59:11–29. DOI: 10.1080/00423114.2020.1774625.] to include effect of combined slip. A nonlinear system is derived that describes non-steady generation tyre forces and considers coupling between longitudinal lateral characteristics. ...

Future vehicular sensors will further increase active and passive safety systems of cars and trucks. One particular promising objective is to gather tyre data as temperature, vibration, acceleration and tyre pressure by mounting sensors in the tyres. Since they are the actual elements which transfer the occurring acceleration and — more important — deceleration forces, any additional informatio...

Fatal accidents during winter time in Sweden are to a large extent due to vehicle spinning. Therefore, it is crucial to analyse and compare vehicle/tyre performance on slippery roads with respect to oversteering. We have performed experimental tests to compare the stability performance of various winter tyres on ice, with and without an electronic stability system (ESC). Two different test meth...

The paper applies to the issue of preservation of passenger vehicles during overcoming the roadblocks on a dry asphalt surface with the constant speed. The study aimed to estimate the forces which are affecting the suspension of the vehicle during the contact between a tyre and roadblock. Using the video recording it is possible to calculate the values of the tyre deflection and forces acting i...

direct yaw moment control systems (dyc) can maintain the vehicle in the driver’s desired path by distributing the asymmetric longitudinal forces and the generation of the control yaw moment (cym). in order to achieve the superior control performance, intelligent usage of lateral forces is also required. the lateral wheel forces have an indirect effect on the cym and based upon their directions,...