Journal article
Driver sensitivity to brake pulse duration and magnitude
Ergonomics, Vol.50(6), pp.828-836
06/01/2007
DOI: 10.1080/00140130701223220
PMID: 17457744
Abstract
Adaptive cruise control (ACC) requires that the driver intervene in situations that exceed the capability of ACC. A brake pulse might provide a particularly compatible means of alerting the driver to situations in which the acceleration authority of the ACC has been exceeded. This study examined the sensitivity of the driver to brake pulses of five different amplitudes (0.01-0.025 g) and five different durations (50-800 ms). Drivers were sensitive to accelerations as low as 0.015 g. Pulse duration interacted with pulse amplitude, such that moderate duration pulses were more detectable than long and short duration pulses at intermediate levels of pulse amplitude. A power function with an exponent of 1.0 accounted for 99% of the variance in drivers' sensitivity to pulse amplitude; however, a power function with an exponent of 0.23 accounted for only 70% of the variance in drivers' sensitivity to pulse duration. These results can help designers create ACC algorithms and develop brake pulse warnings.
Details
- Title: Subtitle
- Driver sensitivity to brake pulse duration and magnitude
- Creators
- J. D Lee - University of IowaD. V Mcgehee - University of IowaT. L Brown - University of IowaJ Nakamoto - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Ergonomics, Vol.50(6), pp.828-836
- DOI
- 10.1080/00140130701223220
- PMID
- 17457744
- NLM abbreviation
- Ergonomics
- ISSN
- 0014-0139
- eISSN
- 1366-5847
- Publisher
- Taylor & Francis
- Language
- English
- Date published
- 06/01/2007
- Academic Unit
- Occupational and Environmental Health; Emergency Medicine; Industrial and Systems Engineering; Center for Social Science Innovation; Injury Prevention Research Center; Public Policy Center (Archive)
- Record Identifier
- 9984186958202771
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