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Broström, Fredrik
Publications (7 of 7) Show all publications
Broström, F. & Gustafsson, T. (2016). Optimization of a Quarter Vehicle Model (ed.). In: (Ed.), 24th Mediterranean Conference on Control and Automation (MED): . Paper presented at Mediterranean Conference on Control and Automation : 21/06/2016 - 24/06/2016 (pp. 485-489). Piscataway, NJ: IEEE Communications Society, Article ID 7535963.
Open this publication in new window or tab >>Optimization of a Quarter Vehicle Model
2016 (English)In: 24th Mediterranean Conference on Control and Automation (MED), Piscataway, NJ: IEEE Communications Society, 2016, p. 485-489, article id 7535963Conference paper, Published paper (Refereed)
Abstract [en]

This paper presents a quarter vehicle model that is currently being used in optimization for energy-efficient control. The model uses the contact-point tyre model approach together with the mapped behaviour of the powertrain to generate an approximate behaviour of the target vehicle. The model is used to optimize two driving cases. The model shows promising results and is believed to enable future research in optimal control of articulated vehicles.

Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2016
Series
Mediterranean Conference on Control and Automation, E-ISSN 2325-369X
National Category
Control Engineering
Research subject
Control Engineering
Identifiers
urn:nbn:se:ltu:diva-27736 (URN)10.1109/MED.2016.7535963 (DOI)000391154900082 ()2-s2.0-84986218189 (Scopus ID)144556af-6407-4179-a155-68274f3dd8de (Local ID)978-1-4673-8345-5 (ISBN)144556af-6407-4179-a155-68274f3dd8de (Archive number)144556af-6407-4179-a155-68274f3dd8de (OAI)
Conference
Mediterranean Conference on Control and Automation : 21/06/2016 - 24/06/2016
Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Broström, F., Andersson, U. & Gustafsson, T. (2015). Scale-Model Articulated Vehicle with Individual Wheel Drives for Traction Control Studies (ed.). Paper presented at . International Journal of Vehicle Systems Modelling and Testing, 10(3), 305-319
Open this publication in new window or tab >>Scale-Model Articulated Vehicle with Individual Wheel Drives for Traction Control Studies
2015 (English)In: International Journal of Vehicle Systems Modelling and Testing, ISSN 1745-6436, E-ISSN 1745-6444, Vol. 10, no 3, p. 305-319Article in journal (Refereed) Published
Abstract [en]

Small scale model vehicles have been successfully used in multiple projects for research and for evaluation of models. ArtiTRAX, an experimental platform designed at Luleå University of Technology, is introduced to study the behaviour of articulated vehicles with individually driven wheels. Three case studies are presented: energy efficiency due to load transfer, online tyre parameter estimation and articulation angle control. The platform was shown to be a valuable asset for research in this area. It gives insight into the problem of controlling overactuated systems and the design hazard of using multiple integrators. ArtiTRAX is shown to be controllable through a kinematic model by only using actuation of the wheel drives. The difference of energy consumption as a function of longitudinal torque distribution indicates that the effectiveness of the motors should be considered when controlling the motor currents. The lateral distribution of motor current as a function of the articulation angle has to be considered in order to minimise the energy consumption of an articulated vehicle. Further research is necessary for understanding the mechanisms and relations between the energy consumption and the controlled motor currents

National Category
Control Engineering
Research subject
Control Engineering
Identifiers
urn:nbn:se:ltu:diva-12731 (URN)10.1504/IJVSMT.2015.070171 (DOI)2-s2.0-84934274334 (Scopus ID)be581da1-1f3c-49f5-a200-191f76cdda5b (Local ID)be581da1-1f3c-49f5-a200-191f76cdda5b (Archive number)be581da1-1f3c-49f5-a200-191f76cdda5b (OAI)
Projects
Optimal dragkraftsreglering för anläggningsmaskiner
Note
Validerad; 2015; Nivå 1; 20150812 (andbra)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Gustafsson, T. & Broström, F. (2014). Projekt: Optimal dragkraftsreglering för anläggningsmaskiner. Paper presented at .
Open this publication in new window or tab >>Projekt: Optimal dragkraftsreglering för anläggningsmaskiner
2014 (Swedish)Other (Other (popular science, discussion, etc.))
Abstract [sv]

Projektet syftar till att förbättra dragkraftsreglering och minska slirning av hjul vid körning med arbetsmaskiner. projketet kommer fokusera på en elektrisk drivlina för hjullastatare och dumprar men är direkt användbart för andra typer av fordon med elektrisk drivlina. Huvudleverablerna från projektet kommer vara ökad förståelse för dragkrafsreglering vid elektrisk drivlina och förbättrade kontrollalgoritmer för densamma. Projektet kommer bidra till en minskad bränsleförbrukningen och slitage på däck.

National Category
Control Engineering
Research subject
Control Engineering
Identifiers
urn:nbn:se:ltu:diva-36215 (URN)b1b3dc2f-66eb-4650-b262-b46b9301b493 (Local ID)b1b3dc2f-66eb-4650-b262-b46b9301b493 (Archive number)b1b3dc2f-66eb-4650-b262-b46b9301b493 (OAI)
Note

Finansieringskälla: Public research council; Forskningsprogram: Vinnova; Belopp: 2 000 000,00 Svenska kronor; Projekt: Optimerad framkomlighet för tunga terrängfordon; Publikationer: Tyre parameter estimation based on control of individual wheel drives: Scale-Model Articulated Vehicle with Individual Wheel Drives for Traction Control Studies; Scale-Model Articulated Vehicle with Individual Wheel Drives for Traction Control Studies; Status: Pågående; Period: 01/07/2013 → 30/06/2015; Projekt-ID: Vinnova; Externt projekt-ID: Vinnova

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Broström, F., Andersson, U. & Gustafsson, T. (2014). Scale-Model Articulated Vehicle with Individual Wheel Drives for Traction Control Studies (ed.). Paper presented at Reglermöte 2014 : 03/06/2014 - 04/06/2014. Paper presented at Reglermöte 2014 : 03/06/2014 - 04/06/2014.
Open this publication in new window or tab >>Scale-Model Articulated Vehicle with Individual Wheel Drives for Traction Control Studies
2014 (English)Conference paper, Oral presentation only (Other academic)
National Category
Control Engineering
Research subject
Control Engineering
Identifiers
urn:nbn:se:ltu:diva-28656 (URN)289a35a0-f899-44a0-901a-a25494045a30 (Local ID)289a35a0-f899-44a0-901a-a25494045a30 (Archive number)289a35a0-f899-44a0-901a-a25494045a30 (OAI)
Conference
Reglermöte 2014 : 03/06/2014 - 04/06/2014
Projects
Optimal dragkraftsreglering för anläggningsmaskiner
Note
Godkänd; 2014; 20141128 (andbra)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
Broström, F. (2014). Towards Energy Efficient Control of Individual Wheel Drive Articulated Vehicles (ed.). (Licentiate dissertation). Paper presented at . : Luleå tekniska universitet
Open this publication in new window or tab >>Towards Energy Efficient Control of Individual Wheel Drive Articulated Vehicles
2014 (English)Licentiate thesis, comprehensive summary (Other academic)
Abstract [en]

The aim of this thesis was to increase knowledge in the area of articulated vehicles and specifically energy efficient traction control. Eletrical propulsion of vehicles has started to be popular due to its versatility and freedom of design. One reason is the reduced fuel consumption associated with hybrid solutions that generate power through a smaller engine that can run at its optimal setpoint. The placement of the electrical motor is in this case dependent on the design of the driveline. Vehicles with one electrical motor for each driving wheel can be designed without a mechanical driveline. This kind of driveline is referred to as individual-wheel drive is usually over-actuated. With the extra actuation provided by these vehicles some critera, i.e. energy efficiency, component wear, traction and driveability, can be optimized. Experiments were performed by using ArtiTRAX (Developed at Luleå University of Technology in Sweden), a 320kg small-scale articulated vehicle with individual wheel drive. In this thesis we study how the extra actuation can be used to minimize the energy consumption and to determine tyre parameters.

Place, publisher, year, edition, pages
Luleå tekniska universitet, 2014. p. 80
Series
Licentiate thesis / Luleå University of Technology, ISSN 1402-1757
National Category
Control Engineering
Research subject
Control Engineering
Identifiers
urn:nbn:se:ltu:diva-17549 (URN)3e793926-d890-4015-9e55-4d0a8e23f468 (Local ID)978-91-7439-907-3 (ISBN)978-91-7439-908-0 (ISBN)3e793926-d890-4015-9e55-4d0a8e23f468 (Archive number)3e793926-d890-4015-9e55-4d0a8e23f468 (OAI)
Note
Godkänd; 2014; 20140326 (frebos); Nedanstående person kommer att hålla licentiatseminarium för avläggande av teknologie licentiatexamen. Namn: Fredrik Broström Ämne: Reglerteknik/Automatic Control Uppsats: Towards Energy Efficient Control of Individual Wheel Drive Articulated Vehicles Examinator: Professor Thomas Gustafsson, Institutionen för system- och rymdteknik, Luleå tekniska universitet Diskutant: Associate Professor Jonas Fredriksson, Chalmers tekniska högskola, Göteborg Tid: Måndag den 26 maj 2014 kl 13.00 Plats: A109, Luleå tekniska universitetAvailable from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Andersson, U., Broström, F. & Gustafsson, T. (2014). Tyre parameter estimation based on control of individual wheel drives (ed.). Paper presented at . International Journal of Vehicle Autonomous Systems, 12(3), 247-265
Open this publication in new window or tab >>Tyre parameter estimation based on control of individual wheel drives
2014 (English)In: International Journal of Vehicle Autonomous Systems, ISSN 1471-0226, E-ISSN 1741-5306, Vol. 12, no 3, p. 247-265Article in journal (Refereed) Published
Abstract [en]

This paper describes a method to estimate tyre parameters for traction control applications based on control of individual wheel drives. The tyre parameters that are estimated are the rolling radius in driven mode (i.e. the rolling radius when the input torque to the wheel is zero) and the tyre longitudinal elasticity factor. The rolling radius in driven mode and the tyre longitudinal elasticity factor depend on several factors, among them the normal load. An important property of the method is that no transfer of load occurs during the estimation phase since the actual velocity of the vehicle is kept constant. Results from tests with ArtiTRAX, a 240 kg electric vehicle that carries 80 kg extra weight in three different front axle and rear axle distributions, are presented.

Keywords
Information technology - Automatic control, Informationsteknik - Reglerteknik
National Category
Control Engineering
Research subject
Control Engineering
Identifiers
urn:nbn:se:ltu:diva-5328 (URN)10.1504/IJVAS.2014.063025 (DOI)2-s2.0-84904002689 (Scopus ID)36569dd4-bd22-42ee-9a95-1be23f4c3d1b (Local ID)36569dd4-bd22-42ee-9a95-1be23f4c3d1b (Archive number)36569dd4-bd22-42ee-9a95-1be23f4c3d1b (OAI)
Projects
Optimal dragkraftsreglering för anläggningsmaskiner
Note
Validerad; 2014; 20140205 (tgu)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved
Gustafsson, T., Andersson, U., Broström, F. & Bortolin, G. (2011). Projekt: Optimerad framkomlighet för tunga terrängfordon. Paper presented at .
Open this publication in new window or tab >>Projekt: Optimerad framkomlighet för tunga terrängfordon
2011 (English)Other (Other (popular science, discussion, etc.))
Abstract [en]

This project is aimed at improving traction control characteristics for wheel loaders and haulers. At present, drivers of these machines can choose between open or closed differentials but often they prefer to lock the differentials, thus distributing the torque equally between the wheels and thereby almost always avoiding wheel slip. However, locked differentials cause increased wear of the driveline, increased fuel consumption and greater tyre wear. Therefore it is worthwhile to investigate other solutions such as limited slip differentials or differentials with a clutch where the torque is distributed as necessary among the driving wheels.

National Category
Control Engineering
Research subject
Control Engineering
Identifiers
urn:nbn:se:ltu:diva-36164 (URN)919618b8-bc99-4e46-b6c2-6f3f506aab05 (Local ID)919618b8-bc99-4e46-b6c2-6f3f506aab05 (Archive number)919618b8-bc99-4e46-b6c2-6f3f506aab05 (OAI)
Note

Publikationer: Traction Control for Articulated Off-road Vehicles; Gyro feedback of a hydraulic steering system; Track loader kinematics; Estimation of side-slip angles of a Volvo A25E articulated all-wheel drive hauler based on GPS/INS measurements; Status: Ended; Period: 01/09/2009 → 31/07/2013

Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2017-11-25Bibliographically approved
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