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A path tracking driver model with representation of driving skill
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Fordonsdynamik.
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Fordonsdynamik.ORCID-id: 0000-0001-8928-0368
KTH, Skolan för teknikvetenskap (SCI), Farkost och flyg, Fordonsdynamik.ORCID-id: 0000-0002-4048-3452
2011 (Engelska)Ingår i: International Journal of Vehicle Systems Modelling and Testing, ISSN 1745-6436, Vol. 6, nr 2, s. 145-186Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

A flexible and intuitive non-linear driver model is proposed, which allows setting of physically relevant parameters for representation of both typical high and typical low skill drivers in a path tracking scenario with constant speed. The model is equipped with a relatively simple internal vehicle model and is divided into three levels of driving skill: perceptual, anticipatory and interpretational skill; decisional skill; and execution skill. Validation of the model is performed using the results from moving base driving simulator tests with the double lane change scenario described in ISO 3888-1:1999. The parameter sets used for the model configuration are selected based on physical relevance to the model and optimisation is carried out with a Nelder-Mead implementation, showing that the model is able to resemble the characteristics of the driver types in the scenario for 70 km/h, and with adjustments being able to represent drivers at other speeds.

Ort, förlag, år, upplaga, sidor
2011. Vol. 6, nr 2, s. 145-186
Nyckelord [en]
Behaviour, Characteristics, Cone track, DLC, Double lane change, Driver model, Driving simulator, Driving skill, Modelling, Moving base, Non-linear, Path tracking, Testing, Vehicle systems, VTI
Nationell ämneskategori
Farkostteknik
Identifikatorer
URN: urn:nbn:se:kth:diva-13874DOI: 10.1504/IJVSMT.2011.042394Scopus ID: 2-s2.0-80052765516OAI: oai:DiVA.org:kth-13874DiVA, id: diva2:327857
Forskningsfinansiär
TrenOp, Transport Research Environment with Novel Perspectives
Anmärkning
QC 20120615Tillgänglig från: 2010-06-30 Skapad: 2010-06-30 Senast uppdaterad: 2012-06-15Bibliografiskt granskad
Ingår i avhandling
1. Driver-Vehicle Interaction: Identification, Characterization and Modelling of Path Tracking Skill
Öppna denna publikation i ny flik eller fönster >>Driver-Vehicle Interaction: Identification, Characterization and Modelling of Path Tracking Skill
2010 (Engelska)Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
Abstract [en]

Since the dawn of the automobile, driver behaviour has been an issue. Driving can result in accidents that may harm not only the driver but also passengers and the surroundings. This calls for measures that restrict the usage of vehicles and to assist the individual driver to conduct the driving in a safe, yet practically efficient manner. The vehicles should therefore be both safe and intuitive, and preferably answer to thedifferent needs of all kinds of drivers.

Driving skill can be defined in many ways, depending on the objective of the driving task, but answer in some way to the question of how well the driver can conduct the driving task. To assist low skill drivers without compromising the driving demand for high skill drivers, it is of highest importance that vehicles are tested and designed to meet those needs. This includes both the testing activities in the vehicle design phase in general but also the configuration for active systems and preventive safety, preferable with settings that adapts to the skill of the individual driver.

The work here comprises the definition of skill and of driver recruitment procedures, scenario design, the development of an analysis method for objective measures, and the gathering of metrics to characterize the driver skill. Moreover, a driver model has been developed that makes use of driver skill characteristics. To gather the information needed, extensive multidisciplinary literature studies were conducted, as well as using field tests and test using an advanced moving base driving simulator. Here the focus is on path tracking skill, which is the main control aspect of driving, although the developed driving scenarios allow a varying degree of path planning, which is more related to regulation. The first simulator test was done with a very simple criterion fordriver selection, but the results gave a good insight into the variation between drivers ingeneral. For the following tests the recruitment procedure was refined to find drivers with high or low vehicle control and regulation skill, a recruitment that also was verified to really represent two different populations.

A method was defined that successfully identified sets of skill-related measures, with some variation in composition depending on the path tracking demand on the driver. Int he curving road scenario, for example, the highest number of skill-related measures is identified in the curves, which is reasonable since the straight segments do not require the same amount of active control from the drivers.

The driver model developed uses a quasi-static analytical description of the driver knowledge of the vehicle dynamics, but possesses the capability of nonlinear descriptions. The parameters in this model are mainly physical properties that easily can be related to the driving process. Metrics gathered are used for identification of the driver model setup for a double lane change scenario using an optimization routine, with adjusted parameter settings for different velocities.

With a subjective comparison of the recorded driving simulator data, the method is verified to enable driver skill settings for driver models. In addition, the method allows metrics to be gathered for driver skill identification routines, meeting the defined objectives of the project.

Ort, förlag, år, upplaga, sidor
Stockholm: KTH, 2010. s. viii, 76
Serie
Trita-AVE, ISSN 1651-7660 ; 2010:29
Nationell ämneskategori
Farkostteknik Psykologi
Identifikatorer
urn:nbn:se:kth:diva-13209 (URN)978-91-7415-665-2 (ISBN)
Disputation
2010-06-10, Sal D3, Lindstedtsvägen 5, KTH, Stockholm, 10:00 (Engelska)
Opponent
Handledare
Anmärkning
QC20100701Tillgänglig från: 2010-06-03 Skapad: 2010-06-03 Senast uppdaterad: 2010-07-01Bibliografiskt granskad

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Drugge, LarsStensson Trigell, Annika

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Totalt: 347 träffar
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