Tomas Milesich

• Slovak University of Technology in Bratislava

In the context of the growing demand for ultra-reliable and low-latency communications (URLLC) in Vehicle-to-Everything (V2X) applications and edge computing offloading, there is a growing imperative to understand the end-to-end Quality of Service (QoS) performance in real-world cellular networks. This study presents an empirical evaluation of the...

The work deals with the parametric generation of datasets, which are used for creation of reduced order models (ROM) of rubber-metal elements (RME). First chapter describes the standard development process and advantages of implementing ROM into this process. Furthermore, it explains the role of input dataset for creating ROM, possibilities for ach...

In this paper, we describe the dataset captured with our proprietary data capture solution mounted on top of a Land Rover Defender vehicle. The captured data are the real data of drives on various Slovak roads. The total dataset consist of almost 33 hours of driving with a automotive grade FPD Link camera with 30 fps and with additional sensors suc...

This paper describes design and application of a torsional property measurement stand used for analyzing rubber-metal components. The paper covers mechanical, electrical and control systems. Design of the stand takes into consideration reusing existing components, that come from a measuring stand that was used for analyzing automotive dual-mass fly...

This article presents a model of rigid rotor supported by active magnetic bearings (AMB). Mathematical formulation of magnetic forces generated by AMB has been developed. Equations of motion of rigid rotor supported by controllable AMB with and without control law are presented. Eigen structure assignment method is used to change the eigenfrequency...

This paper deals with possibilities of utilizing neural networks in reduced order modelling. First section of the paper contains theory on reduced order models and their implementations. Following this, subsequent chapter contains methodology concept for obtaining sufficient amount of data and creating reduced order models as well as their evaluati...

The paper focuses on analyzing and designing a mounting system for the modified rear powertrain of the E-up Boost. The initial section delves into the theoretical aspects, specifically examining the differing sources of vibration between internal combustion engines and electric powertrains. Following this, the subsequent section presents an in-dept...

With the deployment of 5G networks across European countries, researchers and industry can consider research and development of new Cellular-V2X (C-V2X) applications for the environment of Connected and Cooperative Automated Mobility (CCAM) with vision of rapid development into the daily life of vehicle drivers. In order to have these services safe...

The paper describes real world experiments conducted on Slovakia Ring. The main objective of these experiments is to analyze the influence of the relative speed between the ego and the target vehicle on the data provided by the sensors and the perception algorithms executed on these data. During the experiments, data obtained by camera, GNSS/IMU lo...

This paper deals with the method of creating a virtual autonomous vehicle dynamics model SimRod in AMESim environment and implementing such a model in Prescan and MATLAB/Simulink environments and performing co-simulation of the vehicle cornering maneuver at different values of the grip factor in these software. As a result, the driving dynamics of...

Presented paper deals with determination of dynamic stiffness of rubber bushing. Viscoelasticity of rubber is introduced. Next rheological models are shown and determined. Theory of the viscoelastic constitutive relation are done with storage modulus and loss modulus. Rubber bushing FEM model was prepared for calculation of dynamic stiffness throug...

Increasing of electric vehicles volume brings new challenges in NVH (noise, vibration and harshness) area. Presented paper deals with comparison of simulations of rubber-metal motor mount using finite element method. For the future work it is important to define static characteristics of rubber-metal mounts. It leads to study possibilities of simul...

Autonomous systems have great potential for future transportation. Even though we have third level autonomous vehicles, that are able to move from place A to place B without drivers’ intervention in present, we have still a long journey ahead to complete autonomy. In this article we are dealing with analysis of potential of autonomous vehicles in c...

Reducing emissions brings changes in the design of internal combustion engines and thus new challenges for dual-mass flywheels (DMF) in terms of Noise Vibration and Harshness (NVH). The first part of the article describes a simple model of a centrifugal pendulum. Consequently, a more complicated DMF dynamic model involves friction between the sprin...

The overtaking maneuver is an important maneuver for autonomous vehicles. It consists of overtaking another vehicle that is moving at a slower speed in the same lane. The article proposes an ahead maneuver on a straight road using software designed for PreScan simulations, while the obstacle is also a moving vehicle. The vehicle is equipped with te...

The gradual increase in the volume of electric vehicles leads engineers to solve completely new problems of NVH (noise, vibration and harshness) One of the solutions is the use of rubber mounts to hold the electric motor of the vehicle’s powertrain. This article deals with a rubber mount used to insulate vibrations from the propulsion system to the...

New powertrain design poses new challenges in terms of driveline vibration or ultimately in terms of NVH (Noise Vibration Harshness). Current state of the technology for vibration damping in car powertrains is the so-called Dual Mass Flywheel (DMF). The paper deals with creation of MBD model of double mass flywheel based on CAD model of dual mass f...

Increasing the volume of the production of vehicles with electric or hybrid powertrain also leads to specific activities for research and development in this segment. One of the current areas that present the paper deals with the idea of reducing structure-borne vibration from electric powertrain to the vehicle interior. Electric powertrain and mai...

The advanced development of additive technologies over the past years led to the fact that parts made by these technologies have been increasingly used in the most diverse engineering applications. One of the most famous and the most applied additive technology is 3D printing. In this paper the influence of the material type on the operational char...

This paper deals with the possibility of creating a vehicle model using a hierarchy of neural networks. Based on this model, it is possible to build an optimization cycle that looks for parameters which are influencing the driving of vehicles along given path. The given path must include a driving through the town, out of town and along the highway...

This paper deals with the possibility of creating a vehicle model using a hierarchy of neural networks. Based on this model, it is possible to build an optimization cycle that looks for parameters which are influencing the driving of vehicles along given path. The given path must include a driving through the town, out of town and along the highway...

In the strides of the most advanced technological achievements, the use of polymers is becoming increasingly evident both in everyday life and in engineering practice. Complex structures made of polymers attract more attention from scientists and researchers, as their application increases in the most diverse fields of science. This phenomenon requ...

The paper deals with the modelling of a passenger car seat suspension system. Currently, vehicle safety and ride comfort are one of the most important factors of vehicle design. This article analyses a mathematical model of the passenger car seat suspension system. Furthermore, experimental measurements of the passenger car seat suspension system a...

Modeling of suspension is a current topic. Vehicle users require both greater driving comfort and safety. There is a space to invent new technologies like magnetorheological dampers and their control systems to increase these conflicting requirements. Magnetorheological dampers are reliably mathematically described by parametric and nonparametric m...

This paper deals with the application of the skeleton method as the main element of interconnection of CAE programs involved in the process of vehicle design. This article focuses on the utilization of the skeleton method for mutual connection of CATIA V5 and ADAMS/CAR. Both programs can be used simultaneously during various stages of vehicle desig...

The paper deals with mathematical models of the damper of unmanned ground vehicle. The introduction are discussed the possibility of mathematical modeling of the damper. There are described specific types of mathematical models. In next part the experimental measurement of damper are made. For modeling the characteristics of the damper is selected...

The paper deals with mathematical models for the shock absorber of an unmanned ground vehicle. The possibility of mathematically modeling the shock absorber is discussed. Specific types of mathematical models are described and the experimental measurement of a shock absorber is made. For modeling the characteristics of the shock absorber the modifi...