People
doc. Ing. Petr Bouchner, Ph.D.

2024, Driver-Car Interaction and Safety Conference 2023, Praha, České vysoké učení technické v Praze), p. 29-35), ISBN 978-80-01-07387-2, ISSN 2336-5382

Autonomous vehicles remain a major topic in the automotive industry today, including assistance systems, cooperative communication, and other aspects that lead to full vehicle autonomy. This paper investigates vehicle autonomy with a focus on parking assistance. Along with a review of parking assistants, the paper presents a prototype parking assistant with an alternative distance display. The parking assistant prototype, compared to parking without an assistant and conventional parking assistant, was tested in a real-world experiment of a within-subjects study design. The user experience of the proposed distance representation was obtained, and the results indicated that the prototype parking assistant with an alternative distance display helps less experienced drivers get a better idea of the distance from the obstacle.

2024, Neural Network World, 34 (5), p. 279-291), ISSN 1210-0552

This study explores the development and evaluation of external human-machine interfaces (eHMI) for communication between autonomous vehicles (AVs) and pedestrians. By employing advanced virtual reality (VR) simulations and leveraging behavioral data from 600 survey respondents, the research examines the intelligibility and effectiveness of seven eHMI prototypes. The experiments utilized eye-tracking and spatial analysis to measure pedestrian response to AV signals in realistic virtual environments. The findings emphasize the potential of LED strip-based communication interfaces, demonstrating their superiority in terms of visibility, clarity, and implementation cost. This research contributes to the broader field of artificial intelligence applications in transportation, with a focus on ensuring safety and trust in autonomous systems interacting with vulnerable road users.

2024, Neural Network World, 34 (6), p. 329-340), ISSN 1210-0552

This study aims to evaluate the viability of hydrogen fuel cell (FC) technology as a range extender in powered two-wheelers (PTWs), focusing on choosing efficient FC size and under a time-limited, constant power delivery FC control strategy. The analysis presented in this study sheds light on the feasibility of hydrogen FC technology as an alternative energy source for mobility applications. In this study, a 1D powertrain simulation model was created, which enables the efficient analysing of both fundamental and advanced behaviour of individual vehicle subsystems and control strategies, even at the early conceptual design phase. The simulation results show that hydrogen FCs are a promising technology for range extension in urban mobility.

2024

Zpráva se zabývá tématikou monitorování stavu posádky vozidla, realizací experimentů a analýzou dat.

2023, 2023 Smart City Symposium Prague, New York, IEEE Press), p. 1-7), ISBN 979-8-3503-2162-3, ISSN 2691-3666

The world is gradually moving towards green solutions in all industries. This is the case in the automotive industry as well and it is logical that vehicle simulators must follow this trend and functionally approach the increasingly widespread battery electric vehicles (BEVs). The differences in the parameters of vehicle simulators with alternative powertrains have already been covered. This paper deals with the modification of both the simulator hardware and software to improve the behavior of the physical vehicle model, representing all functions through a programmable human machine interface (HMI) and providing an approximation of the driving experience of a real vehicle. The topic of this paper first describes the functional scheme and physical model of the simulator adapted for HMI simulations of BEVs and hybrid electric vehicles (HEVs). A prototype design of the virtual cockpit is also described. Then, the design of the experiment is explained to validate the displayed and recorded values through a qualitative study by pilot testing on a vehicle simulator. A discussion of the measured results is concluded.

2023, Sensors, 23 (12), p. 1-16), ISSN 1424-8220

The present paper focuses on vehicle simulator fidelity, particularly the effect of motion cues intensity on driver performance. The 6-DOF motion platform was used in the experiment; however, we mainly focused on one characteristic of driving behavior. The braking performance of 24 participants in a car simulator was recorded and analyzed. The experiment scenario was composed of acceleration to 120 km/h followed by smooth deceleration to a stop line with prior warning signs at distances of 240, 160, and 80 m to the finish line. To assess the effect of the motion cues, each driver performed the run three times with different motion platform settings-no motion, moderate motion, and maximal possible response and range. The results from the driving simulator were compared with data acquired in an equivalent driving scenario performed in real conditions on a polygon track and taken as reference data. The driving simulator and real car accelerations were recorded using the Xsens MTi-G sensor. The outcomes confirmed the hypothesis that driving with a higher level of motion cues in the driving simulator brought more natural braking behavior of the experimental drivers, better correlated with the real car driving test data, although exceptions were found.

2023

In the scope of the Motostudent 2023/24 competition there was created complex project of the whole motorcycle in the category of Electro bikes. Report contains conceptual design, detailed design, prototyping and development.

2023

In the research report we focus on the state of the art of the propossed innovation, moreover there is declared the research process, proof of concept, market viability and discussion of the proposed innovation of methodology of HMI testing and validation together with the possibility of effective rider training. In the report there are mentioned functional schemes, implementation proccedures as well as drawings.

2023

In the scope of the Motostudent competition there was created complex project of the whole motorcycle in the category of Electro bikes. Report economical assessemen, industrial production plan and mannagement plan of the team.

2023, SENSORS, 23 (1), ISSN 1424-8220

Driving simulators are increasingly being incorporated by driving schools into a training process for a variety of vehicles. The motion platform is a major component integrated into simulators to enhance the sense of presence and fidelity of the driving simulator. However, less effort has been devoted to assessing the motion cues feedback on trainee performance in simulators. To address this gap, we thoroughly study the impact of motion cues on braking at a target point as an elementary behavior that reflects the overall driver's performance. In this paper, we use an eye-tracking device to evaluate driver behavior in addition to evaluating data from a driving simulator and considering participants' feedback. Furthermore, we compare the effect of different motion levels ("No motion", "Mild motion", and "Full motion") in two road scenarios: with and without the pre-braking warning signs with the speed feedback given by the speedometer. The results showed that a full level of motion cues had a positive effect on braking smoothness and gaze fixation on the track. In particular, the presence of full motion cues helped the participants to gradually decelerate from 5 to 0 ms(-1) in the last 240 m before the stop line in both scenarios, without and with warning signs, compared to the hardest braking from 25 to 0 ms(-1) produced under the no motion cues conditions. Moreover, the results showed that a combination of the mild motion conditions and warning signs led to an underestimation of the actual speed and a greater fixation of the gaze on the speedometer. Questionnaire data revealed that 95% of the participants did not suffer from motion sickness symptoms, yet participants' preferences did not indicate that they were aware of the impact of simulator conditions on their driving behavior.

2022, ISBN 978-80-01-07105-2, ISSN 2336-5382

2022

Technical report describing tech details of the motorcycle EVO 2.0 Electric for the competition Moto Engineering Italy in 2022 according to the regulations of Motorsport Engineering Society.

2022

Předmětem výsledku je vyvinutý Proof of Concept (hardwarová a softwarová část) asistenčního systému „Follow the Vehicle“, založený na principu dvou vozidel a jednoho řidiče. Nadřízený vůz (Master), který je řízen člověkem určuje parametry jízdy, kterými jsou rychlost, zrychlení, směr, trasa (dráha) a cílová destinace. Data týkající se pohybů volantu, akcelerace a brzdění získává podřízený vůz (Follower) bezdrátovým přenosem z vozu nadřízeného. Follower jede za nadřízeným vozidlem ve vzdálenosti až 10 m. Před zahájením jízdy jsou oba vozy navzájem identifikovány prostřednictvím digitálního kódu. Testovací vozy ŠKODA SUPERB iV, které byly využity, jsou vybaveny přídavnými hardwarovými a softwarovými prostředky pro řízení, regulaci, komunikaci a zobrazování provozních parametrů. Vozidla sledují dopravní infrastrukturu a předávají si data a informace prostřednictvím Car2Car komunikace. Samotná výměna dat probíhá prostřednictvím standardu IEEE 802.11p, ETSI ITS-G5. K rozpoznávání obrazu a identifikaci 3D objektů vozy ŠKODA SUPERB iV využívají senzorické systémy v podobě kamerového systému, radaru a komunikační jednotky. Systémy sledují okolí vozu a aktuální provoz v reálném čase. Experimentální vozy „Follow the Vehicle“ pracují s celou řadou dat, např. aktuální polohou vozidla a dalšími parametry související s řízením. Součástí výsledku je i nástroj pro analýzu existujícího rozhraní vozidel umožňující analýzu existující rozhraní, jeho návrh nebo tvorbu jeho funkční kopie, která je implementována do vozidlového simulátoru s cílem hlubšího porozumění a možnosti zlepšit tak další návrhy těchto rozhraní. Zjištěné informace jsou pak interpretovány v kontextu experimentu a dále slouží jako vstup pro iterace návrhu rozhraní, či jako detekce provozně problematických prvků produkčních systémů. V rámci výzkumného úkolu vznikla sada specificky zaměřených scénářů pro použití na vyvinutých pokročilých simulátorech ČVUT.

2022, Университет еңбектері – Труды университета, 2022 (87), p. 195-202), ISSN 2710-3382

The article analyzes the accident rate and causes of road accidents. It has been found that in most cases traffic accidents occur due to drivers' fault. This is due to the low level of professional training and limited psychophysiological condition of the driver of the vehicle. The project of an interactive simulator is proposed. The analysis of existing designs of car simulators is carried out. The concept of a car simulator is substantiated based on the analysis. The use of the described driving simulator will allow identifying and weeding out potential traffic violators at the very stage of training.

2021, 2021 3rd IEEE Middle East and North Africa COMMunications Conference (MENACOMM), Piscataway, NJ, IEEE), p. 147-151), ISBN 978-1-6654-3443-0

Autonomous Traffic Management (ATM) systems empowered with Machine Learning (ML) technics are a promising solution for eliminating traffic light and decreasing traffic congestion in the future. However, few efforts have focused on integrating pedestrians in ATM, namely the static programming-based cooperative protocol called Autonomous Pedestrian Crossing (APC). In this paper, we model a Markov Decision Process (MDP) to enable a Deep Reinforcement Learning (DRL)-based version of APC protocol that is able to dynamically achieve the same objectives (i.e. decreasing traffic delay at the crossing area). Using concrete state space, action set and reward functions, our model forces the Autonomous Vehicle (AV) to "think"and behave according to APC architecture. Compared to the traditional programming APC system, our approach permits the AV to learn from its previous experiences in non-signalized crossing and optimize the distance and the velocity parameters accordingly.

2021, 2021 Smart City Symposium Prague, Piscataway, IEEE Signal Processing Society), ISBN 9780738131580

Urban comfort and safety go along with travel and traffic management for the cities. Facing automatization of transport brings necessity for the ITS solutions to provide efficient communication between vehicles, infrastructure and other traffic participants. Parking in the cities is a daily travel related task. Efficient automated parking solutions can contribute to individual time management as well as to reduction of traffic flow that is connected with parking spot search - especially in big cities. User acceptance of new technologies that arise with automated driving depends on their usability and interface. This paper presents a pilot demonstration of automated parking function with a mobile app interface. Observation of visual behavior (eye tracking) provide analyses of automated parking function and mobile app of modified electric prototype of e-vehicle "Skoda Rapid".

2021, ISBN 978-80-01-06894-6

Kniha České vozy velkých cen se věnuje historii automobilových soutěží a závodů a strojům, které se těchto klání účastnily, se zaměřením na vozy vyvinuté a postavené na území České republiky. První část knihy je věnována historii velkých cen obecně, evoluci pravidel a technických a bezpečnostních omezení. Druhá část knihy se zabývá známými i zapomenutými závodními vozy, které vznikly na českém území, ať jde o tovární speciály, či prototypy nadšenců. Třetí častí je katalog českých vozů velkých cen, které byly vystaveny na stejnojmenné výstavě pořádané Fakultou dopravní ČVUT v roce 2017, včetně jejich popisu a závodních úspěchů.

2021

2021

HMI Value study. Eye tracking implementation to vehicle interior analysis. Experiment with use of subjective and objective (ET) method.

2020, Neural Network World, 30 (2), p. 77-78), ISSN 1210-0552

On March 10th, 2020 an outstanding man, scientist, teacher visionary, creator, friend, and founder of Neural Network World, prof. Ing. Mirko Nov´ak, DrSc. departed from our lives.

2020

Hlavním cílem studie bylo vytvoření systému měření HMI různých vozidel za použití objektivní a subjektivních metrik a analyzačních nástrojů, který je kompatibilní se systémy měření ve Škoda Auto. Stávající metodika byla obohacena o metody vyhodnocování pohledu a vizuální zátěže uživatele (eye tracking). Funkce systému byly ověřeny na reálném experimentu se zaměřením na řidičovu distrakci. Z výsledku vyplynou doporučení pro budoucí podobu uživatelských rozhraní HMI.

2020

Využití sofistikovaných modelů jednotlivých agregátů vozidla (HIL) a jejich zapojení do simulace při provádění experimentů (HMI).

2020

In the scope of the Motostudent competition there was created complex project of the whole motorcycle in the category of Electro bikes. Report economical assessemen, industrial production plan

2020

In the scope of the Motostudent competition there was created complex project of the whole motorcycle in the category of Electro bikes. Report contains conceptual design, detailed design, prototyping and development.

2020

In the research report we focus on the state of the art of the propossed innovation, moreover there is declared the research process, proof of concept, market viability and discussion of the proposed innovation of variable geometry of the racing motorcycle. In the repoert there are as well mentioned results of the topological and structural optimizations of the whole assembly as well as mannufacturing drawings.

2020

This document defines key terms and parameters applied in the analysis of driver visual behaviour focused on glance and glance-related measures. It provides guidelines and minimum requirements on equipment and procedures for analysing driver visual behaviour including assessment of TICS to: — plan evaluation trials; — specify (and install) data capture equipment; and — validate, analyse, interpret and report visual-behaviour metrics (standards of measurement). The parameters and definitions described below provide a common source of reference for driver visual behaviour data. It is applicable to on-road trials (e.g. field operational tests or naturalistic studies), and laboratory-based driving studies. The procedures described in this document can also apply to more general assessments of driver visual behaviour. Data collected and analysed according to this document will allow comparisons to be performed across different TICS applications and experimental scenarios.

2020, 2020 Smart City Symposium Prague, New York, IEEE Press), ISBN 978-1-7281-6821-0

The contribution deals with problems of a passive safety of autonomous vehicles, focused on specifics of car-crash accident. The paper describes a non-standard side crash test of two passenger cars, during which the interior equipment and placement of test figurines inside car were accommodated to simulate an expected arrangement of future autonomous cars. Motion of the equipment inside the car interior was tracked during the test with the focus on its possible impact on passenger's safety. The contribution further deals with specifics of autonomous vehicle crew protection from the point of view of passive and integrated safety.

2020

Tato zpráva se zabývá problematikou standardizace a parametrizace zkušebních drah, a to virtuálních zkušebních drah a také reálných zkušebních drah.

2020

Cílem studie je získat zákaznické kvalitativní posouzení designových prvků dvou vozů a tím vytvoření a ověření inovativní metodiky.

2019

The report answer following questions. Does the user prefer the help of one general or multiple specialized assistants to solve a task? Are there differences in communication strategies/behavior in the interaction with one general or multiple specialized assistants while solving a task Are there differences in assigned limitations or capabilities between a general or multiple specialized assistant? Are there differences in trust towards one general or multiple specialized assistants?

2019, Neural Network World, 29 (6), p. 427-445), ISSN 1210-0552

There is no methodical approach suitable for definition of the periodical or non-periodical, stationary or nonstationary curves of brain signals with a help of amplitude, frequency, phase etc. values. It is difficult to determinate the wave shape, i.e. the problem is how to solve the respective pattern recognition. Therefore, we tried to propose a simple method for praxis by help of measurement two main wave time components, interpreting a sinusoidal alpha wave as a triangle, where there is an anterior and a posterior part of wave ascending and descending abscissas in a hope that the sufficient measure are presented by the "legs" only or distances between upper and bottom peak of the wave. All the values of total ascendants are divided by all values of total descendants. For the method validity estimation it was made for this computation separately in two different psychical states - the relaxation and the calculation activity, both with eyes closed. Results are presented as quotient (quotus alpha) which means alpha waves symmetry. If the quotient is equal to 1, or is near to 1, is the alpha wave full or almost symmetrical. When the quotient is lower than 1 the ascendant is shorter than descendent, then alpha wave is asymmetric and has inclination to the left side. In contrary if the quotient is higher than 1 the ascendant is longer than descendent, alpha wave is again asymmetrical, but inclination is oriented to the right side. During mentation is usually quotient lower one and the ascendant is still more lover, alpha waves are sheer, the inclination to the left is more expressive.

2019, Neural Network World, 29 (6), p. 373-379), ISSN 1210-0552

Artificial systems play an extremely important role in human life. Each day, almost all people on the Earth have to interact with various complex systems, which are of a very different nature and target application. These all system structures and their whole sets can be of various degrees of complexity and can be discriminated into many categories. These three can be considered as their main kinds: • artificial systems, • living systems, • natural systems. All of them could have very various behaviours but some aspects – as well as their theoretical backgrounds – are universal. Artificial systems are those created by the human, so mostly by human will and decisions.

2019, 54th INTERNATIONAL SCIENTIFIC CONFERENCE ON INFORMATION, COMMUNICATION AND ENERGY SYSTEMS AND TECHNOLOGIES, Sofia, Technical University of Sofia), p. 321-324), ISSN 2603-3267

The paper provides overview of challenges of drivercar interaction in modern electric vehicles. Different aspects of human-machine interaction are reviewed. Analysis of method of driver-vehicle interaction through in-vehicle display and its influence on using eco driving modes is provided on the example of experimental studies in the field.

2019

Posouzení komfortu ve vozidle během autonomní jízdy při různých intenzitách zatemnění. Nalezení nejvhodnější úrovně zatemnění pro autonomní jízdu. Zjištění potřeb zákazníků v kontextu autonomní jízdy. Zjištění reakcí zákazníků na autonomní jízdu.

2019

Usability testing of UIs in car with seniors. How can we improve two user interfaces on the middle display in car from senior‘s point of view?

2018

2018

In the scope of the Motostudent competition there was created complex project of the whole motorcycle in the category of Electro bikes. Report contains conceptual design, detailed design, prototyping, economical assessemen, industrialproduction plan and technological innovation.

2018

In the scope of the Motostudent competition there was created complex project of the whole motorcycle in the category of Petrol bikes. Report contains conceptual design, detailed design, prototyping, economical assessemen, industrialproduction plan and technological innovation.

2018, 2018 Smart City Symposium Prague, New York, IEEE Press), ISBN 978-1-5386-5017-2

The aim of this work is to present Real-Time Driver Advisory System (RTDAS) for improving energy economy of Electric Vehicles (EV) and Hybrid Electric Vehicles (HEV). System relies on a road map data provided in accordance with the second version of Advance Driver Assistant Systems Interface Specification (ADASIS v2) Protocol. Road map data is then transformed into Electronic Horizon (EH). The Electronic Horizon provides a preview of the road characteristics ahead of the vehicle, which is used for development of a predictive energy economy algorithms. The system is focused on static characteristics of the road ahead such as road slope, curvature, superelevation, speed limits and the traffic signs. Based on this data and vehicle parameters, the system is using algorithms to define if and when to send a message to the driver to release the gas pedal and to achieve higher energy economy, comfort and safety of driving. The releasing of gas pedal triggers an algorithm to adjust the speed using controlled regenerative braking without using mechanical brakes that leads to optimization of vehicle kinetic energy recuperation.

2017

Vyhledání a definice problematických stavů při užívání různých systémů Lane Assist. Vyhledání nekonzistentních, nejednoznačných a špatně pochopitelných sdělení a kontrolních zásahů. Návrhy na optimalizaci provedení.

2017, ISBN 978-80-01-06082-7

Kniha Český kabriolet a kupé v průběhu století, katalog výstavy r. 2016 podává základní informace o jednotlivých vystavených exponátech a přidává k nim další, často zatím nepublikované informace. V první části publikace je rozebrán historický vývoj všech typů karoserií osobních automobilů s důrazem zejména na otázky bezpečnosti. Kniha nabízí unikátní seznam československých výrobců vozů a karoserií v průběhu sta let. Dále se věnuje tématům konstrukce kabrioletů a designu. Druhou část tvoří samotný katalog - kompletní seznam vystavených exponátů s fotografiemi a historií jednotlivých vozů.

2017, ISBN 978-80-01-06367-5

The book presents basic information about all exhibits on display and brings a lot of new information, often have not been published before. The first part of the book deals with car body types, especially roofless (cabriolets, phaetons etc.) presented in its historical view. It discusses the topics like design, aesthetics and engineering and relation of all of them to the vehicle safety. There is also unique list of Czechoslovak car and coachwork manufacturers. The second part is the catalogue of exhibited vehicles, their photos and their brief history (from manufacture through renovation to present usage).

2017, ISBN 978-80-01-06336-1, ISSN 2336-5382

2017, Proceedings of the Human Factors and Ergonomics Society Europe Chapter 2016 Annual Conference. ISSN 2333-4959 (online), Groningen, The Human Factors and Ergonomics Society, Europe Chapter), ISSN 2333-4959

The article provides a study of driver fatigue experimental research on interactive driver simulator. Visually available face features, movements of eyes and facial expression are followed with the help of distant eye tracker. The driver behaviour of sleep deprived participants is observed and compared to that of the rested drivers. This research targets sparing the key features of driver behaviour for further implementation in detection methods of driver fatigue in the human-machine interface of modern and future cars.

2017

This technical report presents evaluation of the Questionnaire study of the project Easy Driving focused on controlling of Advanced Driver Assistance Systems from the point of view of the Human-Machine Interface with the focus on age groups. In the second part we in genral focus on anylsis of ADAS HMI in practise and further the report analyze problematic elements of controlling the Automatic parking system during practical experiment.

2017, 2017 Smart Cities Symposium Prague (SCSP) - IEEE PROCEEDINGS, New York, IEEE Press), ISBN 978-1-5386-3825-5

This article states a set of problems associated with Human Machine Interface of future vehicles based on the technological and social trends of modern society. Smart Cities, Connected Cars, and new propulsion systems bring a new set of questions and problems for the HMI studies. This article tries to state these questions based on the history of the development and analysis of the modern in vehicle HMI from three layer Driver Vehicle interaction model. Additionally, future trends and technologies are considered and described.

2017

Zákaznické posouzení funkčních vlastností pilotní mobilní aplikace.

2017, ISSN 2333-4959

2017

Hodnocení použitelnosti infotainmentu a spokojenosti uživatelů s jeho hlavními funkcemi

2017

This document describes the evaluation of the platform for studying problems associated with HMI for vehicles with alternative propulsion developed as a part of the grand Advanced assisting systems and their UI for future EV and HEV. This evaluation is based on design and analysis of two experiments on interactive vehicle simulator. First experiment deals with the evaluation of user acceptance of the HMI for EV based on the VW eGolf concept, including regenerative braking and second experiment evaluates user acceptance and practical benefit of the Driver Advisory System which aim is to increase EV range by advising driver when to release an acceleration pedal to reduce the speed before next limitation, with heavy usage of regenerative braking. Both subjective and objective data were used to evaluate not only particular experiments but also the platform as a whole.

2017

Identifikovat a ověřit s uživateli informace, které by pro ně mohly být užitečné v kontextu navigace. Prozkoumat a ověřit s uživateli možnosti integrace hlasových zpráv s infotainmentem.