Jordanoska, Vase

Preferred name
Jordanoska, Vase
Official Name
Jordanoska, Vase
Translated Name
Јорданоска Васе
Main Affiliation
Email
vase.jordanoska@mf.edu.mk

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    Item type:Publication,
    Improving vehicle dynamics employing individual and coordinated sliding mode control in vehicle stability, active front wheel steering and active rear wheel steering systems in co-simulation environment
    (IOP Publishing, 2022-12-01)
    Changoski, Vasko
    ;
    Gjurkov, Igor
    ;
    The goal for the future, safer and more sustainable transportation leads to implementation of many advanced systems in vehicles. In this paper, a vehicle model with stability control system that uses the braking system is regarded as a base active vehicle. Two alternative vehicle models are considered where this system is combined and integrated with active front wheel steering (AFS) and active rear wheel steering (ARS) system, separately. For the purpose of this research, 3D virtual vehicle models based on a B-segment vehicle were created in ADAMS/Car. As a research tool, a co-simulation approach between ADAMS/Car and MATLAB/Simulink was used. Several sliding mode controllers (SMC) have been proposed and implemented in MATLAB/Simulink in order to analyse the potential improvements of the vehicle dynamics due to the integration and coordination of these systems. In the same MATLAB/Simulink environment, a reference 2DOF nonlinear bicycle model was used. The vehicle models were simulated in driving scenarios based on standardized ISO 7401 test procedures. The scenarios include situations where the passive vehicle loses its stability or fails to complete the manoeuvre while the vehicles with stability control or integrated control systems successfully complete it.
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    Item type:Publication,
    VEHICLE HANDLING ENHANCEMENT EMPLOYING FOUR-WHEEL INDEPENDENT STEERING SYSTEM USING SLIDING MODE CONTROL
    (University Ss. Cyril and Methodius in Skopje, 2023)
    Changoski, Vasko
    ;
    Gjurkov, Igor
    ;
    ;
    The demand for safer vehicle transportation and future automated vehicles will open the possibility for implementation of steer-by-wire (SbW) vehicle steering system. Application of this system would not be exclusive only for the front axle, but for the rear axle as well. Current four-wheel steering (4WS) systems are designed and applied using Ackermann steering geometry. Due to the vehicle designs requirements, an ideal Ackermann geometry is never achieved and steering kinematics may result in two instantaneous centres of rotation during vehicle cornering. To avoid this, a control strategy for a four-wheel independent steering (4WIS) is proposed where the four independently steered wheels attempt to achieve single instantaneous centre of rotation using sliding mode controller (SMC). As a reference model a 2DOF nonlinear vehicle bicycle model is used. The 4WS and 4WIS two-track vehicle models are created using MATLAB/Simulink and tested with manoeuvres defined by the standard ISO 7401.