On the correlation between steering feel and handling in heavy trucks
2008 (English)In: FISITA World Automotive Congress 2008, Congress Proceedings - Mobility Concepts, Man Machine Interface, Process Challenges, Virtual Reality: Volume 1, 2008, 311-317 p.Conference paper (Refereed)
Driving a car gives us a certain feeling. Driving another car returns a very differentexperience. If we could drive with closed eyes, we could nonetheless explain which vehicle itwas we were sitting in. Not only are there differences between sports cars and transporters orlimousines and trucks, but also it is possible to feel the different sensations from drivingtrucks of different manufacturers. It depends on the seat, the sitting position, the view, thesound, the performance, the brakes - and the steering feel.There are many ways how to describe a vehicle's steering feel. There are ISO-standards, suchas ISO/TS 20119 and ISO 14792 that generate characteristic values, there are subjective testsof automotive magazines, and there are opinions of test and race drivers. But exactly there,between the pure objective tests and the subjective impressions that are difficult to describe,exists a gap. This relationship between instrumentally measured numbers and nearlyindescribable feelings has not been fully investigated yet. With a better understanding of thecorrelation between objective values and subjective experience, it may be possible to find ananswer on which parameters can manipulate the feelings.This paper is on an investigation about finding a correlation between instrumental values(values measured by instruments or calculated from those) and non-instrumental values(values obtained by human impressions). The idea is to use drivers as human measuringgauges and let them measure impressions in their own words.Thus, in order to gather a standardized answer that can be evaluated, a questionnaire wasdeveloped. For this questionnaire the most important consideration was to facilitate the testdrivers with their own languages. Therefore, the questions were developed in the test drivers'native language. The characteristic words were chosen corresponding to the results of adouble interrogation process.When people express their feelings like they are accustomed to do, they will utilize a libraryof expressive words instead of numbers. Thus the measuring results will have that character,too. By using the semantic differential method, expressions can be translated into numbers.The semantic differential method is a well-known method especially in psychoacousticswhich allows people describe how noise sounds to them. With this kind of evaluation - valueassigning procedure - a list of parameters comes to existence similar to that containing theinstrumental values. To explore the relation between the instrumental and non-instrumentalvalues, statistical methods are used.
Place, publisher, year, edition, pages
2008. 311-317 p.
Heavy Truck, Steering Feel, Semantic Differential, Correlation, Field Test
IdentifiersURN: urn:nbn:se:kth:diva-25036ScopusID: 2-s2.0-84866073342OAI: oai:DiVA.org:kth-25036DiVA: diva2:355223
32nd FISITA World Automotive Congress 2008; Munich; Germany; 14-19 September 2008
QC 201410132010-10-062010-10-062014-10-13Bibliographically approved