| The Fully Networked Car, A Workshop on ICT in Vehicles |
A B S T R A C T |
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| Speaker: |
Dr. Christhard Gelau
Bundesanstalt für Straßenwesen/
Federal Highway Research Institute (BASt)
Bergisch Gladbach
Germany |
| Session 7-I: |
In-Vehicle devices and Human Machine Interface
(including Voice Interface) |
| Session Moderator: |
Jean-Yves Monfort, Chairman of ITU-T Study Group 12, France Telecom & Jean-Pierre Cheynet, Chairman of ISO TC-22 "Road vehicles", Bureau de Normalisation de l'Automobile |
| Title of Presentation: |
Standardisation activities in the field of HMI for road vehicles |
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Due to the progressive development and availability of In-Vehicle Information and Communication Systems (IVIS) and Advanced Driver Assistance Systems (ADAS) issues concerning the design of the in-vehicle Human-Machine-Interface (HMI) have received considerable interest in recent years. In the field of standardisation this is reflected by the establishment of relevant working groups operating on an international level. The present contribution reviews finalised and ongoing standardisation projects performed by the experts of ISO/TC 22/SC 13/WG 8 “HMI of Transport Information and Control Systems (TICS)”. The work of this expert group is mirrored by CEN/TC 278/WG 10 on a European level. However, as this group consists of the European ISO experts the work of CEN/TC 278/WG 10 is completely integrated in the programme of ISO/TC 22/SC 13/WG 8 in order to ensure efficient networking and to avoid double work. As an example on how international standardisation activities are reflected on a national level the activities of the German expert group FAKRA/DKE-GK 717/AK10 are briefly presented. The main task of this group is to elaborate and agree on German positions on those issues dealt with by the ISO group on a world-wide level.
Since there is quite a number of standardization committees concerned with HMI topics the ISO/TC 22/SC 13/WG 8 with its mirror organisations is the only one that deals exclusively with automotive HMI. This results in very specialized standards that meet the needs of developers of automotive HMI as the following examples show: Vision provides the primary source of information available to the driver. Information is gathered by looking at objects and events which, in turn, enable control and navigation of the vehicle in the road traffic environment. A visual information standard ensures legibility of displays by setting limits for contrast and letter size. The multitude of information needing to be displayed to the driver through TICS may create the need to minimize visual load and make more and better use of the auditory channel. An auditory standard provides ergonomic specifications for the design and installation of auditory displays presenting speech and tonal information while driving. The priority standard supplies methods to determine the relevance of warnings and to control their presentation to the driver accordingly. A technical report on warnings compiles the present knowledge of the topic and gives guidance to HMI (Human-Machine Interface) developers. In view of the importance of this topic, a new Task Force was established to develop guidelines on warnings based on the existing knowledge. Another approach, rather than fixing certain details of HMI, is an overall test to determine the influence of HMI on driving performance. Two methods are currently under development, the occlusion method and lane change test. For the overall assessment of in-vehicle systems a framework is supplied by the suitability standard based on a structured methodology. The dialogue management standard supplies principles on how to design user interfaces to limit driver distraction.
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