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Publications (10 of 37) Show all publications
Henriksson, J., Englund, C. & Borg, M. (2018). Automotive safety and machine learning: Initial results from a study on how to adapt the ISO 26262 safety standard. In: Workshop on Software Engineering for AI in Autonomous Systems: . Paper presented at ICSE 2018.
Open this publication in new window or tab >>Automotive safety and machine learning: Initial results from a study on how to adapt the ISO 26262 safety standard
2018 (English)In: Workshop on Software Engineering for AI in Autonomous Systems, 2018Conference paper, Published paper (Refereed)
National Category
Embedded Systems
Identifiers
urn:nbn:se:hh:diva-37754 (URN)
Conference
ICSE 2018
Available from: 2018-08-21 Created: 2018-08-21 Last updated: 2018-08-21
Pettersson, S., Bjärsvik, S., Englund, C., Eriksson, R., Koponen, V., Kristiansson, U., . . . Wedlin, J. (2018). Comparison of plug-in hybrids and fossil fuelled vehicles based on data collection of fast sampled signals. In: 31st International Electric Vehicles Symposium & Exhibition (EVS 31)& International Electric Vehicle Technology Conference 2018 (EVTeC 2018): EVS31. Paper presented at 31st International Electric Vehicles Symposium & Exhibition (EVS 31).
Open this publication in new window or tab >>Comparison of plug-in hybrids and fossil fuelled vehicles based on data collection of fast sampled signals
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2018 (English)In: 31st International Electric Vehicles Symposium & Exhibition (EVS 31)& International Electric Vehicle Technology Conference 2018 (EVTeC 2018): EVS31, 2018Conference paper, Published paper (Refereed)
National Category
Other Engineering and Technologies Signal Processing
Identifiers
urn:nbn:se:hh:diva-37752 (URN)
Conference
31st International Electric Vehicles Symposium & Exhibition (EVS 31)
Available from: 2018-08-21 Created: 2018-08-21 Last updated: 2018-08-21
Ploeg, J., Semsar-Kazerooni, E., Morales Medina, A. I., de Jongh, J. F. C., van de Sluis, J., Voronov, A., . . . van de Wouw, N. (2018). Cooperative Automated Maneuvering at the 2016 Grand Cooperative Driving Challenge. IEEE transactions on intelligent transportation systems (Print), 19(4), 1213-1226
Open this publication in new window or tab >>Cooperative Automated Maneuvering at the 2016 Grand Cooperative Driving Challenge
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2018 (English)In: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 19, no 4, p. 1213-1226Article in journal (Refereed) Published
Abstract [en]

Cooperative adaptive cruise control and platooning are well-known applications in the field of cooperative automated driving. However, extension toward maneuvering is desired to accommodate common highway maneuvers, such as merging, and to enable urban applications. To this end, a layered control architecture is adopted. In this architecture, the tactical layer hosts the interaction protocols, describing the wireless information exchange to initiate the vehicle maneuvers, supported by a novel wireless message set, whereas the operational layer involves the vehicle controllers to realize the desired maneuvers. This hierarchical approach was the basis for the Grand Cooperative Driving Challenge (GCDC), which was held in May 2016 in The Netherlands. The GCDC provided the opportunity for participating teams to cooperatively execute a highway lane-reduction scenario and an urban intersection-crossing scenario. The GCDC was set up as a competition and, hence, also involving assessment of the teams' individual performance in a cooperative setting. As a result, the hierarchical architecture proved to be a viable approach, whereas the GCDC appeared to be an effective instrument to advance the field of cooperative automated driving. © Copyright 2017 IEEE - All rights reserved.

Place, publisher, year, edition, pages
Piscataway: IEEE Press, 2018
Keywords
Cooperative driving, interaction protocol, controller design, vehicle platoons, wireless communications
National Category
Robotics
Identifiers
urn:nbn:se:hh:diva-35490 (URN)10.1109/TITS.2017.2765669 (DOI)2-s2.0-85035089916 (Scopus ID)
Projects
i-GAME
Available from: 2017-11-27 Created: 2017-11-27 Last updated: 2018-04-17Bibliographically approved
Ploeg, J., Englund, C., Nijmeijer, H., Semsar-Kazerooni, E., Shladover, S. E., Voronov, A. & van de Wouw, N. (2018). Guest Editorial Introduction to the Special Issue on the 2016 Grand Cooperative Driving Challenge. IEEE transactions on intelligent transportation systems (Print), 19(4), 1208-1212
Open this publication in new window or tab >>Guest Editorial Introduction to the Special Issue on the 2016 Grand Cooperative Driving Challenge
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2018 (English)In: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 19, no 4, p. 1208-1212Article in journal, Editorial material (Refereed) Published
Abstract [en]

Cooperative driving is based on wireless communications between vehicles and between vehicles and roadside infrastructure, aiming for increased traffic flow and traffic safety, while decreasing fuel consumption and emissions. To support and accelerate the introduction of cooperative vehicles in everyday traffic, in 2011, nine international teams joined the Grand Cooperative Driving Challenge (GCDC). The challenge was to perform platooning, in which vehicles drive in road trains with short intervehicle distances. The results were reported in a Special Issue of IEEE Transactions on Intelligent Transportation Systems, published in September 2012 [item 1 in the Appendix]. © 2000-2011 IEEE.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE, 2018
National Category
Robotics
Identifiers
urn:nbn:se:hh:diva-36630 (URN)10.1109/TITS.2018.2815103 (DOI)2-s2.0-85045020434 (Scopus ID)
Available from: 2018-04-18 Created: 2018-04-18 Last updated: 2018-04-18Bibliographically approved
Rosenstatter, T. & Englund, C. (2018). Modelling the Level of Trust in a Cooperative Automated Vehicle Control System. IEEE transactions on intelligent transportation systems (Print), 19(4), 1237-1247
Open this publication in new window or tab >>Modelling the Level of Trust in a Cooperative Automated Vehicle Control System
2018 (English)In: IEEE transactions on intelligent transportation systems (Print), ISSN 1524-9050, E-ISSN 1558-0016, Vol. 19, no 4, p. 1237-1247Article in journal (Refereed) Published
Abstract [en]

Vehicle-to-vehicle communication is a key technology for achieving increased perception for automated vehicles, where the communication enables virtual sensing by means of sensors in other vehicles. In addition, this technology also allows detection and recognition of objects that are out-of-sight. This paper presents a trust system that allows a cooperative and automated vehicle to make more reliable and safe decisions. The system evaluates the current situation and generates a trust index indicating the level of trust in the environment, the ego vehicle, and the surrounding vehicles. This research goes beyond secure communication and concerns the verification of the received data on a system level. The results show that the proposed method is capable of correctly identifying various traffic situations and how the trust index is used while manoeuvring in a platoon merge scenario. © Copyright 2017 IEEE - All rights reserved.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Press, 2018
Keywords
GCDC 2016, autonomous driving, cooperative driving, vehicle-to-vehicle communication, trust, reliability
National Category
Robotics
Identifiers
urn:nbn:se:hh:diva-35483 (URN)10.1109/TITS.2017.2749962 (DOI)2-s2.0-85030752579 (Scopus ID)
Available from: 2017-11-27 Created: 2017-11-27 Last updated: 2018-04-03Bibliographically approved
Habibi, S., Sprei, F., Englund, C., Voronov, A., Pettersson, S., Wedlin, J. & Engdahl, H. (2018). Success and usage pattern of free-floating car sharing services in cities. In: Transportation Research Board (TRB) Meeting 2018: . Paper presented at TRB2018, 7-11 January, 2018, Washington DC, United States.
Open this publication in new window or tab >>Success and usage pattern of free-floating car sharing services in cities
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2018 (English)In: Transportation Research Board (TRB) Meeting 2018, 2018Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

Free-floating car sharing services (FFCS) have been offered as a more flexible mobility solution than other car sharing services. FFCS users can pick up and return cars anywhere within a specified area in a city.The objective of this paper is to identify similar usage patterns of FFCS in different cities as well as city characteristics that make these services a viable option. The authors have access to real booking data for 32 cities in Europe and North America. Their study shows the share of daily car trips is negatively correlated to the utilization rate of these services. Also, the higher the congestion and the harder finding a parking lot, the lower the utilization rate of these services is in the cities. Moreover, our results suggest that FFCS services do not compete with public transport but are rather used in combination to it. These services are mainly used during midday and evening peak and the trips taken by these services are mainly chained trips.The clustering analysis shows that the trips are grouped into two or three clusters in different cities. The majority of clusters are the inner city clusters which contain a significantly higher number of trips than the clusters around other points of interest such as airports. © Conference Compass and Transportation Research Board

National Category
Other Social Sciences not elsewhere specified
Identifiers
urn:nbn:se:hh:diva-37753 (URN)
Conference
TRB2018, 7-11 January, 2018, Washington DC, United States
Available from: 2018-08-21 Created: 2018-08-21 Last updated: 2018-08-23Bibliographically approved
Englund, C., Didoff, J. & Wahlström, B. (2017). A new method for ground vehicle access control and situation awareness: experiences from a real-life implementation at an airport. In: : . Paper presented at 24th World Congress on Intelligent Transportation Systems (ITS WC 2017), 29 October - 2 November, 2017, Montréal, Canada.
Open this publication in new window or tab >>A new method for ground vehicle access control and situation awareness: experiences from a real-life implementation at an airport
2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

To improve safety in complex traffic situations, access control can be applied. This paper presents a generic vehicle access control method for improved situation awareness. The method concerns three main steps (i) zones definition (ii) rules to manage access and (iii) situation awareness based on realtime position monitoring. The proposed system consists of a server where the access zones and rules are stored and mobile units providing position data to the server and information to the driver. At the control center a client control unit is used to provide improved situation awareness by monitoring and visualizing the positions of the clients in the vehicles. The client in the control center is also utilized to give access to the clients in the vehicles that request access. The system has been demonstrated at an airport to grant access for ground vehicles to enter the runway and has since been developed into a commercial product by an industrial supplier. It was introduced at the World ATM Congress in Madrid in March of 2017. The server system is implemented as a cloud service in Microsoft Azure, the control client uses a WACOM CINTIQ touch screen computer for interaction and the vehicle clients are off-the-shelf Samsung Android units paired with Trimble R1GNSS receiver and 4G mobile communication between the server and the clients.

Keywords
Ground access control, C-ITS, Traffic management
National Category
Robotics
Identifiers
urn:nbn:se:hh:diva-35487 (URN)
Conference
24th World Congress on Intelligent Transportation Systems (ITS WC 2017), 29 October - 2 November, 2017, Montréal, Canada
Available from: 2017-11-27 Created: 2017-11-27 Last updated: 2018-06-04Bibliographically approved
Chen, L. & Englund, C. (2017). Choreographing services for smart cities: smart traffic demonstration. In: Vehicular Technology Conference (VTC Spring), 2017 IEEE 85th: . Paper presented at Vehicular Technology Conference (VTC2017-Spring), 4-7 June 2017, Sydney, Australia. Sydney, Australia: IEEE
Open this publication in new window or tab >>Choreographing services for smart cities: smart traffic demonstration
2017 (English)In: Vehicular Technology Conference (VTC Spring), 2017 IEEE 85th, Sydney, Australia: IEEE, 2017Conference paper, Published paper (Refereed)
Abstract [en]

With the fifth generation (5G) communication technologies on the horizon, the society is rapidly transformed into a fully connected world. The Future Internet (FI) is foreseeable to consist of an infinite number of software components and things that coordinate with each other to enable different applications. Transport systems, as one of the most important systems in future smart cities, will embrace the connectivity, together with the fast development of cooperative and automated vehicles to enable smart traffic. To facilitate this transformation, a service choreography composition platform is under development to enable fast innovation and prototyping of choreography-based Internet of Things (IoT) applications by automatically synthesizing choreographies. Based on the method, a smart traffic application is developed and demonstrated.

Place, publisher, year, edition, pages
Sydney, Australia: IEEE, 2017
National Category
Communication Systems
Identifiers
urn:nbn:se:hh:diva-35482 (URN)10.1109/VTCSpring.2017.8108625 (DOI)
Conference
Vehicular Technology Conference (VTC2017-Spring), 4-7 June 2017, Sydney, Australia
Available from: 2017-11-27 Created: 2017-11-27 Last updated: 2017-11-29Bibliographically approved
Sprei, F., Englund, C., Habibi, S., Pettersson, S., Voronov, A., Wedlin, J. & Engdahl, H. (2017). Comparing electric vehicles and fossil driven vehicles in free-floating car sharing services. In: : . Paper presented at 5th European Battery, Hybrid and Fuel Cell Electric Vehicle Congress, 14-16 March, 2017, Geneva, Switzerland.
Open this publication in new window or tab >>Comparing electric vehicles and fossil driven vehicles in free-floating car sharing services
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2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In recent years, free-floating car sharing (FFCS) services have been offered as a more flexible option compared to traditional car sharing. FFCS allows users to pick up and return cars anywhere within a specified area of a city. These can be either electric or fossil driven vehicles. We analyze the difference in usage of these two types of vehicles. The analysis is based on a dataset consisting of vehicle availability data sampled between 2014 and 2016 for 9 cities with EVs in the FFCS fleet. We find that there is no statistical difference in how EVs and fossil driven FFCS vehicles are used. When it comes to charging of EVs two main strategies are identified: widespread “slow charging” versus tailored fast-charging.

National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hh:diva-35484 (URN)
Conference
5th European Battery, Hybrid and Fuel Cell Electric Vehicle Congress, 14-16 March, 2017, Geneva, Switzerland
Available from: 2017-11-27 Created: 2017-11-27 Last updated: 2018-06-04Bibliographically approved
Habibi, S., Sprei, F., Englund, C., Pettersson, S., Voronov, A., Wedlin, J. & Engdahl, H. (2017). Comparison of free-floating car-sharing services in cities. In: : . Paper presented at European Council of Energy Efficient Economy (ECEEE) Summer Study, Presqu'île de Giens, France, 29 May–3 June, 2017. , Article ID 4-109-17.
Open this publication in new window or tab >>Comparison of free-floating car-sharing services in cities
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2017 (English)Conference paper, Published paper (Refereed)
Abstract [en]

In recent years, free-floating car sharing services (FFCS) have been offered by many organizations as a more flexible option compared to traditional car sharing. FFCS allows users to pick up and return cars anywhere within a specified area of a city. FFCS can provide a high degree of utilization of vehicles and less usage of infrastructure in the form of parking lots and roads and thus has the potential to increase the efficiency of the transport sector. However, there is also a concern that these compete with other efficient modes of transport such as biking and public transport. The aim of this paper is to better understand how, when and where the vehicles are utilized through logged data of the vehicles movements. We have access to data collected on FFCS services in 22 cities in Europe and North America which allows us to compare the usage pattern in different cities and examine whether or not there are similar trends. In this paper, we use the collected data to compare the different cities based on utilization rate, length of trip and time of day that the trip is made. We find that the vehicle utilization rates differ between cities with Madrid and Hamburg having some of the highest utilization levels for the FFCS vehicles. The result form a first step of a better understanding on how these services are being used and can provide valuable input to local policy makers as well as future studies such as simulation models.

National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hh:diva-35485 (URN)
Conference
European Council of Energy Efficient Economy (ECEEE) Summer Study, Presqu'île de Giens, France, 29 May–3 June, 2017
Note

Funding: The Swedish Energy Agency, Chalmers Area of Advance Transport & Chalmers Area of Advance Energy

Available from: 2017-11-27 Created: 2017-11-27 Last updated: 2017-11-28Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-1043-8773

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