Marek Jaśkiewicz
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View article: Application of Curvelet Transform and PLC Controllers in Automation as Elements of Ensuring High-Quality Control of an Industrial Gas Burner
Application of Curvelet Transform and PLC Controllers in Automation as Elements of Ensuring High-Quality Control of an Industrial Gas Burner Open
The paper describes and proposes a multidimensional curvelet transformation for flame image analysis and describes the use of a PLC controller in an original program for controlling an industrial gas burner mounted on metallurgical furnace…
View article: Testing the Automatic Voltage Regulators of Ship Synchronous Generators Using Hardware-in-the-Loop Technology
Testing the Automatic Voltage Regulators of Ship Synchronous Generators Using Hardware-in-the-Loop Technology Open
In marine systems, autonomous power generation unit sets play an important (main) function, and the Automatic Voltage Regulator (AVR) is a part of the excitation system of a synchronous generator that is difficult to test, repair, and adju…
View article: HEAD MOTION ANALYSIS OF THE KPSIT C50 DUMMY IN SIMULATED LOW-SPEED COLLISIONS
HEAD MOTION ANALYSIS OF THE KPSIT C50 DUMMY IN SIMULATED LOW-SPEED COLLISIONS Open
This study focuses on the KPSIT C50 dummy to examine the impact of modifications to seat belts and vehicle seating. With the increasing frequency of sudden braking and vehicle collisions, particularly during traffic jams, understanding the…
View article: Analysis of Head Movement in KPSIT Dummies and the Impact of Seats and Seat Belts during Low-Speed Collisions 20 km/h
Analysis of Head Movement in KPSIT Dummies and the Impact of Seats and Seat Belts during Low-Speed Collisions 20 km/h Open
The aim of this study was to compare the head displacement of the KPSIT C50 dummy, representing a 50th percentile male, with the KPSIT C5 dummy, representing a 5th percentile female, during low-speed collisions. Low-speed collisions, such …
View article: Pedestrian and driver safety problems caused by the use of a mobile phone - pilot studies
Pedestrian and driver safety problems caused by the use of a mobile phone - pilot studies Open
The use of hand-held mobile phones by drivers and pedestrians is common and is becoming more common every year. Mobile phones have become an integral part of our everyday life, accompanying us in almost every respect. Modern smartphones pe…
View article: Evaluation of the Reliability of the Shoulder and Knee Joint of the KPSIT C50 Dummy Adapted to Crash tests carried out at low speeds.
Evaluation of the Reliability of the Shoulder and Knee Joint of the KPSIT C50 Dummy Adapted to Crash tests carried out at low speeds. Open
The article presents the results of experimental studies on the reliability and monitoring of the condition of the knee and shoulder joints of an anthropometric dummy designed for low-speed crash tests. Next, the characteristics of the res…
View article: Energy Optimization of Marine Drive Systems with Permanent Magnet Synchronous Motors
Energy Optimization of Marine Drive Systems with Permanent Magnet Synchronous Motors Open
The International Maritime Organization are introducing more and more stringent requirements concerning increasing ships’ energy efficiency. They are becoming a huge challenge for design engineers. This article proposes a method to increas…
View article: Improving the Energy Efficiency of a Ship’s Power Plant by Using an Autonomous Hybrid System with a PMSG
Improving the Energy Efficiency of a Ship’s Power Plant by Using an Autonomous Hybrid System with a PMSG Open
In ship systems, diesel power generators are used in various systems of autonomous power plants to ensure power supply security. This article presents an autonomous hybrid system of a ship power plant with a diesel generator with a permane…
View article: Identification of the Impact of Transport Performance on the Economy of Particular Area
Identification of the Impact of Transport Performance on the Economy of Particular Area Open
Transport is one of the most important economic sectors in the world. It is a fundamental and important element of a country’s GDP. Gross Domestic Product (GDP) is considered one of the most important indicators of economic performance of …
View article: Testing the relationship between the technical condition of motorcycle shock absorbers determined on the diagnostic line and their characteristics
Testing the relationship between the technical condition of motorcycle shock absorbers determined on the diagnostic line and their characteristics Open
The article presents the results of research on the relationship between the technical condition of motorcycle shock absorbers determined on the diagnostic line and their damping characteristics. The basic division of shock absorber tests …
View article: Regional Differences in the Impact of the COVID-19 Pandemic on the Demand for Bus Transport in the Slovak Republic
Regional Differences in the Impact of the COVID-19 Pandemic on the Demand for Bus Transport in the Slovak Republic Open
The COVID-19 pandemic and the anti-pandemic measures taken have significantly affected the activities of the society and the associated need for mobility, as well as the transport behaviour of inhabitants. The goal of this research is to a…
View article: Statistical analysis of road accidents of motorcyclists in Poland from 2011 to 2021
Statistical analysis of road accidents of motorcyclists in Poland from 2011 to 2021 Open
The increase in the number of motorcycles on Polish and European roads has caused a huge change in the state of safety over the last 10 years. The article presents the safety problems of motorcyclists in Poland in the years 2011-2021. The …
View article: Behavior of pedestrians when using a pedestrian crossing with traffic lights
Behavior of pedestrians when using a pedestrian crossing with traffic lights Open
Reducing the number of road accidents and the number of fatalities involving pedestrians remains a topical topic in Poland and European Union countries. It should be noted that the last 10 years have seen an increase in the use of electric…
View article: Optimal Control of the Diesel–Electric Propulsion in a Ship with PMSM
Optimal Control of the Diesel–Electric Propulsion in a Ship with PMSM Open
The article presents and compares two different control methods for a permanent magnet synchronous motor (PMSM) for diesel–electric ship propulsion. The main focus of the article is on control optimization, which allows improving energy ef…
View article: Comparison of Volunteers’ Head Displacement with Computer Simulation—Crash Test with Low Speed of 20 km/h
Comparison of Volunteers’ Head Displacement with Computer Simulation—Crash Test with Low Speed of 20 km/h Open
Recently, the automotive industry has used simulation programs much more often than experimental research. Computer simulations are more and more often used due to the repeatability of simulation conditions and the possibility of making mo…
View article: Smartphone Use in Traffic: A Pilot Study on Pedestrian Behavior
Smartphone Use in Traffic: A Pilot Study on Pedestrian Behavior Open
Mobile phones accompany us in every area of life and at the same time keep us busy while performing other basic activities such as running, cycling, driving or walking in traffic. The problem of using cell phones while driving is of intere…
View article: Motorcycle Crash Tests - Literature Review
Motorcycle Crash Tests - Literature Review Open
More and more motorcycles appear on the roads, which can be seen, for example, on the basis of statistic data presented by the Central Statistical Office. The data shows that every year there are more newly registered motorcycles and that …
View article: Tests of lateral acceleration during a controlled skid - various types of vehicles
Tests of lateral acceleration during a controlled skid - various types of vehicles Open
This article presents the values of lateral acceleration during controlled slip for a passenger vehicle and a city bus. Skidding is one of the most dangerous road situations that can occur while driving a vehicle. They can happen to anyone…
View article: Improvement of energy efficiency in the drive system of an electric car with PMSM
Improvement of energy efficiency in the drive system of an electric car with PMSM Open
Thanks to the advantages, i.e. high overload, high power density factor, wide range of rotational speed, low moment of inertia, as well as high torque-to-inertia ratio, PMSM AC motors are currently widely used in electric cars. The article…
View article: Frontal collision simulation in laboratory conditions
Frontal collision simulation in laboratory conditions Open
The article presents the displacement of individual body parts of volunteers during a controlled crash test at low speed. The crash test stand used is equipped with a vehicle seat with standard seat belts, which moves along the ramp rails.…
View article: Road testing of lateral acceleration in urban bus
Road testing of lateral acceleration in urban bus Open
Lateral acceleration is one of the parameters used to assess a driver’s behaviour and the comfort of urban bus passengers. Because of its purpose, a city bus is a vehicle designed to transport large numbers of people over relatively short …
View article: Analysis of longitudinal acceleration during rapid minibus braking on various surfaces
Analysis of longitudinal acceleration during rapid minibus braking on various surfaces Open
Vehicle acceleration can be used to control vehicle traffic, evaluate driver behaviour and analyse accident causes, among others. The purpose of the testing was to designate longitudinal acceleration in limit conditions during the test veh…
View article: Study of lateral acceleration of a Ford Transit car on various road surfaces
Study of lateral acceleration of a Ford Transit car on various road surfaces Open
The measurement of car acceleration in time can be used to assess driving styles and safety behaviours of drivers. The values of lateral acceleration of the car can be an indication of the driver’s aggressive driving style and tendency for…
View article: Experimental testing of longitudinal acceleration in urban buses
Experimental testing of longitudinal acceleration in urban buses Open
A vehicle’s longitudinal acceleration is one the parameters that characterize a vehicle’s motion dynamics and used, among others, to assess the comfort of public bus passengers. Rapid acceleration and braking performed by urban bus drivers…
View article: Influence of harsh braking parameters on safety of load transport
Influence of harsh braking parameters on safety of load transport Open
Loads acting on transported cargo are the result of the inertia forces associated with the movement of the motor vehicle. Longitudinal inertia forces acting on the goods transported by a vehicle may result from accelerating or braking the …
View article: Lateral acceleration tests during circular driving maneuvers and double lane change
Lateral acceleration tests during circular driving maneuvers and double lane change Open
The paper presents the analysis of lateral acceleration based on a vehicle traveling in a circle with a double lane change. The maneuvers of driving in a circle and double lane changes were chosen not by accident. Tests were carried out on…
View article: Modeling and Simulation of the Automated Lane Change Process, Taking Into Account Freeplay and Friction in the Vehicle Steering System
Modeling and Simulation of the Automated Lane Change Process, Taking Into Account Freeplay and Friction in the Vehicle Steering System Open
The paper reports rather unique research on the influence of freeplay and friction in the car steering mechanism on automatically controlled process of lane change. The developed controller algorithm was based on very simplified (and thus …
View article: Exhaust Emissions Measurement of a Vehicle with Retrofitted LPG System
Exhaust Emissions Measurement of a Vehicle with Retrofitted LPG System Open
The aim of this study was to compare and evaluate the production of exhaust emissions from a vehicle with a petrol engine with the Euro 4 emission standard and powered by petrol and LPG (liquefied petroleum gas). The paper presents new pos…
View article: Identification of Refund of Excise Duty on Motor Oils for International Road Freight Transport
Identification of Refund of Excise Duty on Motor Oils for International Road Freight Transport Open
In this article, the authors focus on the issue of refunding excise duty on motor oils within Europe. Some states have a refund in their legislation, most European countries do not, and this creates pressure from carriers to make decisions…
View article: Simulation of a Dummy Crash Test in Adams
Simulation of a Dummy Crash Test in Adams Open
The article presents a model designed dummy for crash test in ADAMS. The simulated model dummy has dimensions, shapes and mass corresponding to a 50-percentile man. The simulation program allows modification of the dummy parameters. It all…