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Getting to Know Electric Cars Through an App
KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.ORCID iD: 0000-0003-1974-1100
KTH, School of Computer Science and Communication (CSC), Media Technology and Interaction Design, MID.
2015 (English)In: Proceedings of the 7th International Conference on Automotive User Interfaces and Interactive Vehicular Applications, ACM Digital Library, 2015, 289-296 p.Conference paper, Published paper (Refereed)
Abstract [en]

Electric cars are a promising alternative to combustion engine cars to lower emissions and fossil fuel dependencies. However, many are skeptical to this unfamiliar technology and the limited driving range of these vehicles. Therefore, people disregard this option without properly knowing if it is a good practical alternative. This is unfortunate, as electric cars according to studies should cover most people’s needs. In this paper, we will share our results from a real-world study where 8 participants used an app designed to simulate the battery of electric cars using a regular combustion engine car. In this way it is intended to let people assess their real needs in their real context. Our results show that this might be an effective tool to overcome psychological barriers associated with electric cars, as they do not only assess electric cars and infrastructure, but also their own needs and habits. We also suggest a shift from a kWh and bar perspective to a percentage-perspective as our users easily could work with percentage to figure out the driving range and plan ahead. Our study also elevated a number of uncertainties causing unnecessary worries among our participants.

Place, publisher, year, edition, pages
ACM Digital Library, 2015. 289-296 p.
Series
AutomotiveUI ’15
Keyword [en]
Battery level, driving range, electric cars, in-situ, interaction design, range anxiety, simulation
National Category
Interaction Technologies
Research subject
Human-computer Interaction
Identifiers
URN: urn:nbn:se:kth:diva-173014DOI: 10.1145/2799250.2799272ISBN: 978-1-4503-3736-6 (print)OAI: oai:DiVA.org:kth-173014DiVA: diva2:851663
Conference
AutomotiveUI '15 The 7th International Conference on Automotive User Interfaces and Interactive Vehicular Applications Nottingham, United Kingdom — September 01 - 03, 2015
Funder
StandUpSwedish Energy Agency, 37054-1
Note

Qc 20150908

Available from: 2015-09-07 Created: 2015-09-07 Last updated: 2016-04-29Bibliographically approved
In thesis
1. Designing Energy-Sensitive Interactions: Conceptualising Energy from the Perspective of Electric Cars
Open this publication in new window or tab >>Designing Energy-Sensitive Interactions: Conceptualising Energy from the Perspective of Electric Cars
2016 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

As technology is increasingly used in mobile settings, energy and battery management is becoming a part of everyday life. Many have experienced how quickly a battery can be depleted in a smartphone, laptop or electric cars, sometimes causing much distress. An important question is how we can understand and work with energy as a factor in interaction design to enable better experiences for end-users.

Through design-oriented research, I have worked with the specific case of electric cars, which is currently a domain where people struggle in terms of energy management. The main issue in this use case is that current driving range estimates cause distrust and anxiety among drivers. Through sketches, prototypes and studies, I investigated causes as well as possible remedies to this situation. My conclusion is that instead of providing black-boxed predictions, in-car interfaces should expose the logics of estimates so that drivers know how their own actions in e.g. driving style, climate control, and other equipment, affects energy use. Revealing such energy mechanisms will not only empower the driver, it will also acknowledge the impact of variables that cannot be predicted automatically.

In this work, understanding the dynamic aspects of energy has emerged as central to interaction with systems. This points to a need to design energy sensitive interactions - focusing on supporting users to find the right balance between energy use and the experiential values sought for. To ease design of energy sensitive interactions, energy use is divided into three different categories with accompanying ideals. These are exergy (always needed to achieve the required interaction), intergy (controllable and changing over time and use, needs to be addressed in design), and anergy (always waste that needs to be reduced). This articulation highlights aspects of energy that are specific to interaction design, and possible aspects to expose to allow more energy-efficient interactions in use. 

Abstract [sv]

I takt med att vi använder alltmer teknik i mobila sammanhang blir energi- och batterihantering en allt större del av vår vardag. Många har erfarenheter av de besvär som ett plötsligt urladdat batteri i en mobiltelefon, laptop eller elbil kan orsaka. En central fråga för att uppnå bättre användarupplevelser är hur vi kan förstå och arbeta med energi som en faktor i design av interaktion med mobil teknik.

Genom designdriven forskning har jag arbetat specifikt med interaktionen i elbilar, en situation där många brottas med just hantering och förståelse av begränsad energi. En specifik utmaning i denna kontext är den misstro som många upplever kring existerande system för räckviddsberäkning. Genom skisser, prototyper och användarstudier har jag undersökt orsaker och praktiska lösningar på detta problem. Min slutsats är att bilens gränssnitt bör exponera den inre logik som beräkningarna bygger på, så att föraren förstår hur egna handlingar, såsom körsätt och användning av t ex kupévärmare, påverkar energiförbrukning och räckvidd. Detta leder till ökad upplevelse av kontroll för föraren, och samtidigt till mer tillförlitliga beräkningar då det tar hänsyn till variabler som inte kan förutsägas automatiskt.

I arbetet har dynamiska aspekter av energi framträtt som centralt i användning av interaktiva system. Detta pekar på behovet av att designa energikänsliga interaktioner, som hjälper användaren att förstå balansen mellan energiåtgång och bruksvärde. För att stödja design av energikänsliga interaktioner artikuleras tre kategorier av energianvändning i interaktiva system. Dessa är exergi (behövs för att uppnå tänkt interaktion), intergi (kontrollerbar och föränderlig över tid och användning, måste adresseras med design), och anergi (är alltid ett slöseri som behöver reduceras). Denna artikulation belyser specifikt de aspekter av energiförbrukningen som varierar genom användning, och som skulle kunna exponeras för mer energieffektiv interaktion med ny teknik. 

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2016. 99 p.
Series
TRITA-CSC-A, ISSN 1653-5723 ; 10
Keyword
Interaction design, Electric vehicles, Range anxiety, Energy management, Battery management, Intergy, Exergy, Anergy, Energy-Sensitive Interactions, Energy dynamics, Energy compromises, Empowerment, Resourceful interaction
National Category
Human Computer Interaction
Research subject
Human-computer Interaction
Identifiers
urn:nbn:se:kth:diva-185931 (URN)978-91-7595-952-8 (ISBN)
Public defence
2016-05-27, E2, Lindstedtsvägen 3, E-huset, huvudbyggnaden, plan 3, Stockholm, 14:00 (English)
Opponent
Supervisors
Funder
StandUpSwedish Energy Agency, 37054-1
Note

QC 20160429

Available from: 2016-04-29 Created: 2016-04-28 Last updated: 2016-05-10Bibliographically approved

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