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Driver performance in the presence of adaptive cruise control related failures: Implications for safety analysis and fault tolerance

Josef Nilsson (Institutionen för signaler och system, Mekatronik ; SAFER - Fordons- och Trafiksäkerhetscentrum ) ; Niklas Strand (Institutionen för produkt- och produktionsutveckling, Design and Human Factors ; SAFER - Fordons- och Trafiksäkerhetscentrum ) ; Paolo Falcone (Institutionen för signaler och system, Mekatronik ; SAFER - Fordons- och Trafiksäkerhetscentrum ) ; Jonny Vinter
2013 43rd Annual IEEE/IFIP Conference on Dependable Systems and Networks Workshop (DSN-W) (2325-6648). p. 1-10. (2013)
[Konferensbidrag, refereegranskat]

This study explored how failures related to an adaptive cruise control (ACC) were handled by drivers and what the effects on safety can be. The experimental study included forty-eight subjects and was performed in a moving base driving simulator equipped with an ACC. Each subject experienced two different failures in separate scenarios. In total, the study included four different failures, i.e., Unwanted acceleration, Complete lack of deceleration, Partial lack of deceleration, and Speed limit violation. The outcome of each failure scenario has been categorized based on whether the driver managed to avoid a collision or not. For the outcomes where collisions were successfully avoided, the situations were analyzed in more detail and classified according to the strategy used by the driver. Besides showing that partial lack of deceleration caused more collisions than complete lack of deceleration (43% compared to 14% of the participants colliding), the results also indicate a preference among drivers to steer and change lane rather than to apply the brakes when faced with acceleration and deceleration failures. A trade off relationship was identified between allowing a failing ACC to stay operational and on the other hand disabling it when an error is detected. Keeping the system operational can cause confusion about the mode of the system but as the results of the study indicate it can also improve the situation by reducing impact speed.

Nyckelord: adaptive cruise control, controllability, driver behavior, failure model



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Denna post skapades 2013-10-09. Senast ändrad 2017-06-28.
CPL Pubid: 185006

 

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Institutioner (Chalmers)

Institutionen för signaler och system, Mekatronik (2005-2017)
SAFER - Fordons- och Trafiksäkerhetscentrum
Institutionen för produkt- och produktionsutveckling, Design and Human Factors (2008-2017)

Ämnesområden

Transport
Robotteknik och automation
Interaktionsteknik

Chalmers infrastruktur

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