Publications

Countermeasure Drowsiness by Design - Using Common Behaviour

This study takes a starting point in what drivers do to avoid drowsiness while driving instead of starting with what researchers know is efficient (Take a short nap). It is concluded that research is missing when it comes to how efficient common behavior

Design and Experimental Validation of a Cooperative Driving System in the Grand Cooperative Driving Challenge

In this paper, we present the Cooperative Adaptive Cruise Control (CACC) architecture, which was proposed and implemented by the team from Chalmers University of Technology, Göteborg, Sweden, that joined the Grand Cooperative Driving Challenge (GCDC) in

Designing multimodal stimuli for in-vehicle information systems

The amount of complex information while driving is constantly increasing, leading to driver inattention and traffic accidents. Since the majority of this information is visual, the driver´s visual attentnion is deflected away from driving the vehicle. The

The Development of a Cooperative Heavy-Duty Vehicle for the GCDC 2011: Team Scoop

The first edition of the Grand Cooperative Driving Challenge (GCDC) was held in the Netherlands in May 2011. Nine international teams competed in urban and highway platooning scenarios with prototype vehicles using cooperative adaptive cruise control. Team

Driver modeling: Data collection, model analysis, and optimization

This thesis concerns aspects of driver modeling, with an emphasis on critical near-crash scenarios, involving time spans of around 10 s of driving. Here,driver modeling has been studied using both computer simulations and experiments carried out in a high

The Dual Regimes of Digital Innovation Management

The pervasive integration of digital technology in traditionally physical products such as cars, heat pumps, and washing machines calls for revisiting the received innovation literature. To this end, this paper presents a competing logic framework for

Exploring user Needs in Automobiles

This study aims to present an alternative method for capturing the user's needs and experiences of in-vehicle human machine interfaces. For this purpose, a set of workshops and a repertory grid technique was employed. The combination was tested with a

A fault-aware sensor architecture for cooperative mobile applications

One of the striking characteristics of mobile embedded systems is the interaction with the physical world. Prerequisite for this interaction is the reliable perception of the environment by sensors. Exploiting remote sensors of an instrumented environment

Gulliver: A test-bed for developing, demonstrating and prototyping vehicular systems

Vehicular system designers often use simulation tools in order to prove vehicular systems. The computational complexity of detailed simulations limits the scale of such testings. Therefore, it is often the case that the first full-scale demonstrations of

Haptic addition to a visual menu selection interface controlled by an in-vehicle rotary device

Today, several vehicles are equipped with a visual display combined with a haptic rotary device for handling in-vehicle information system tasks while driving. This experimental study investigates whether a haptic addition to a visual interface interferes

How Can We Design 3D Auditory Interfaces Which Enhance Traffic Safety for Chinese Drivers?

With the rapid motorization in countries such as China, the large number of vehicles has caused a dramatic increase of accidents. Thus, the needs for active safety systems are urgent; the system designs must fulfill drivers' needs and local situations

How am I feeling? - The Challenge of Evaluating Pleasure-Of-Use in Vehicle Interfaces

This paper presents a method triangulation approach for evaluating emotional aspects of the User Experience (UX) of in-vehicle systems, in a naturalistic driving setting. A within subjects design with 36 participants was used. The methods that were part of

How shall we design the future vehicle for the Chinese market

Surface transportation system is developing very fast in China and the number of vehicles is increasing quickly as well. This development creates a lot of problems on traffic safety and the number of accident is also increasing. In this paper, we made deep

Integrated threat assessment and control design for roadway departure avoidance

This paper presents the design of an active safety system for prevention of unintended roadway departures. In normal driving conditions, the driver fully commands the vehicle while the safety system corrects the driver's steering and braking action in case

Investigating visually distracted driver reactions in rear-end crashes and near crashes based on 100-car study data

Rear-end crashes are common accident scenarios and account for approximately 30% of all police- reported accidents in the United States. Previous studies have shown that driver inattention just before the rear-end crashes or near crashes is a major

A Light-Weight Defect Classification Scheme for Embedded Automotive Software Development

A light-weight defect classification scheme for embedded automotive software and its initial evaluation

Objective: Defect classification is an essential part of software development process models as a means of early identification of patterns in defect inflow profiles. Such classification, however, may often be a tedious task requiring analysis work in

Long-Term Clock Synchronization in wireless sensor networks with arbitrary delay distributions

Clock synchronization is a crucial issue in the operation of wireless sensor networks. Although the existing synchronization algorithms under linear clock model assumptions perform well for short periods, they will become problematic for applications with

Methodological considerations when adding new measures to the lane change test

The Lane Change Test measures one aspect of driving performance, but other measures can be added. This paper discusses the effects of adding a measure for missed signs without adjusting the specified task pace. Two experiments with two secondary task

A Modular CACC System Integration and Design

This paper describes the Halmstad University entry in the Grand Cooperative Driving Challenge, which is a competition in vehicle platooning. Cooperative platooning has the potential to improve traffic flow by mitigating shock wave effects, which otherwise

A Nonlinear Post Impact Path Controller Based on Optimized Brake Sequences

This paper investigates brake-based path control of a passenger vehicle, aimed at reducing secondary collision risk following an initial impact in a traffic accident. Previous results from numerical optimisation showed that, at varying severity levels of

A novel modelling pattern for establishing failure models and assisting architectural exploration in an automotive context

With the introduction of the automotive functional safety standard ISO 26262, several challenges related to the representation of dependability information has emerged. This paper addresses how safety requirements can be formalized; which is mandatory for

Older drivers' visual search behaviour at intersections

Previous research has indicated that older drivers are more likely to be involved in collisions in complex traffic scenarios like intersections even if they are not more involved in accidents in general. Moreover, being more vulnerable, the older driver is

Path and speed control of a heavy vehicle for collision avoidance manoeuvres

In an emergency situation prior to an imminent accident, first in-vehicle warning systems would intervene and aim to make the driver to take a suitable action. If the risk of accident was not eliminated, then an autonomous collision avoidance manoeuvre can

Post impact braking verification in motion platform simulator

The goal of this thesis is to develop a test method and to apply it on a new safety function named Post Impact Braking (PIB) on different vehicle simulator platforms. The aim of this function is to avoid multiple events accident, so that the car starts

Principle other Vehicle Warning

This study aims at providing basic understanding of driver responses to headlight and sound warning coming from another vehicle, in a critical situation. A possible application is the implementation of systems for automatic activation of the warnings. A

Processing of Eye/Head-Tracking Data in Large-Scale Naturalistic Driving Data Sets

Driver distraction and driver inattention are frequently recognized as leading causes of crashes and incidents. Despite this fact, there are few methods available for the automatic detection of driver distraction. Eye tracking has come forward as the most

Quasi-linear Optimal Path Controller Applied to Post-Impact Vehicle Dynamics

This paper investigates brake-based path control of a passenger vehicle, aimed at reducing secondary collision risk, following an initial impact in a traffic accident. This risk may be reduced if lateral deviations from the preimpact path can be minimized

Refresher Courses for Older Drivers - a Literature Study

Purpose of the study:

A Review of Near-Collision Driver Behavior Models

Objective:

Self-Stabilizing End-to-End Communication in Bounded Capacity, Omitting, Duplicating and Non-FIFO Dynamic Networks

End-to-end communication over the network layer (or data link in overlay networks) is one of the most important communication tasks in every communication network, including legacy communication networks as well as mobile ad hoc networks, peer-to-peer

Semi-autonomous vehicle control for road departure and obstacle avoidance

This paper presents a semi-autonomous controller for integrated design of an active safety system. A model of the driver’s nominal behavior is estimated based on observed behavior. A nonlinear model of the vehicle is developed that utilizes a coordinate

Set-up and real-traffic assessment of an active-safety platform for vulnerable-road-users

Accounting for over 1.3 million yearly deaths, traffic accidents make up the ninth cause of death worldwide. In Europe, over 20%of these fatalities are vulnerable road users (VRUs). Active safety measures may significantly help to reduce VRU fatality

A Study of MAP Estimation Techniques for Nonlinear Filtering

For solving the nonlinear filtering problem, much attention has been paid to filters based on the Linear Minimum Mean Square Error (LMMSE) estimation. Accordingly, less attention has been paid to MAP estimation techniques in this field. We argue that

Threat assessment design under driver parameter uncertainty

We consider a model-based threat assessment method, which enables the activation of assisting safety interventions in case an accident threat to the driver is detected. The method relies on vehicle and driver mathematical models and reachability analysis

Towards Dependable and Stable Perception in Smart Environments with Timing and Value Faults

Future physical environments are expected to be pervasively enriched with sensors, which mobile embedded applications can use to safely interact in and with that environment. Unfortunately, due to the open and uncertain nature of the environment and the

Towards a model to interpret driver behaviour in terms of mismatch between real world complexity and invested effort

Driving behaviour has been less documented than driver workload. The possibilities to define a framework that could be part of a driving behaviour model were investigated. The results present a framework that defines twelve scenarios in which drivers have

Under the Guise of Openness: Exploring Digital Innovation in User Interface Design

In this study we are concerned with the ways digital components increasingly challenge preexisting work practices in traditional product development. By drawing on an in depth case study of an automakers attempt to respond to digital innovation, we explore

The use of Affective Interaction Design in Car User Interfaces

Recent developments in the car industry have put Human Machine Interfaces under the spotlight. Developing gratifying human-car interactions has become one of the more prominent areas that car manufacturers want to invest in. However, concepts like

Use of Quality Metrics for Functional Safety in Systems of Cooperative Vehicles

Looking at functional safety of vehicles, we have seen an evolution from federated to integrated E/E architectures. When extending the way of specifying and analysing functional safety to also address cooperative functionality, it is not possible to keep a

Using naturalistic driving films as a design tool for investigating driver requirements in HMI design for ADAS

In recent years, there are many naturalistic driving projects have been conducted, such as the 100-Car Project (Naturalistic Driving study in United State), EuroFOT(European Large-Scale Field Operational Tests on Vehicle Systems), SeMiFOT(Sweden Michigan

A Vehicle Dynamics Model for Driving Simulators

Driving simulators play an important role in research concerning mainly human factors and the development of new advanced driver assistance systems. Since the human body is a very sensitive “machine”, driving simulator experiences must be as close as

Achieving Cooperative Sensing in Automotive Scenarios Through Complex Event Processing

An Optimal Path Controller Minimizing Longitudinal and Lateral Deviations after Light Collisions

This paper considers the problem of path control for a road vehicle immediately after it is disturbed by an initial light collision. Assuming that the driver cannot adequately control the vehicle during such an event, active chassis controls such as front

Analysing and Reducing Network Inaccessibility in IEEE 802.15.4 Wireless Communications

Network inaccessibility is a temporal issue derived from the presence of faults affecting the communication services provided by the medium access control (MAC) sublayer. The occurrence of network inaccessibility represents temporary 'communication

Application Driven Environment Representation

Architecting Autonomous Automotive Systems: With an emphasis on Cooperative Driving

The increasing usage of electronics and software in a modern automobile enables realization of many advanced features. One such feature is autonomous driving. Autonomous driving means that a human driver’s intervention is not required to drive the

Augmented and Mixed Reality as a tool for evaluation of Vehicle Active Safety Systems

Even though the realism of driving simulators increases constantly, there is a potential issue with how representative the test is compared to a real life scenario. An alternative to simulators is to present a mixture of real and simulated environment to

Automotive Threat Assessment Design for Combined Braking and Steering Maneuvers

The active safety systems available on the passenger cars market today, automatically deploy automated safety interventions in situations where the driver is in need of assistance. In this paper, we consider the process of determining whether such

A basic vehicle dynamics model for driving simulators

Driving simulators are a useful research tool in studies of vehicle and transport-related human machine interface. A vital part of the driving simulator is the vehicle dynamics model. In the present paper, such a model is developed. The model implements