Active deceleration support in car following

Authors:
Mark Mulder;Jasper J. A. Pauwelussen;Marinus M. Van Paassen;Max Mulder;David A. Abbink
Affiliations:
Faculty of Aerospace Engineering, Delft University of Technology, The Netherlands;Netherlands Organization for Applied Scientific Research, Soesterberg, The Netherlands and Faculty of Aerospace Engineering, Delft University of Technology, The Netherlands;Faculty of Aerospace Engineering, Delft University of Technology, The Netherlands;Faculty of Aerospace Engineering, Delft University of Technology, The Netherlands;Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands
Venue:
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Year:
2010

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Abstract

A haptic gas pedal feedback system is developed that provides car-following information via haptic cues from the gas pedal. During normal car-following situations, the haptic feedback (HF) cues were sufficient to reduce control activity and improve car-following performance. However, in more critical following situations, drivers use the brake pedal to maintain separation with the lead vehicle. A deceleration control (DC) algorithm is designed that, in addition to the HF, provided increased deceleration upon release of the gas pedal during car-following situations that required faster deceleration than releasing the gas pedal alone would do. For the design, a driver model for car following in different situations was estimated fromdriving simulator data. A Monte Carlo analysis with the driver model yielded subjective decision points, where drivers released the gas pedal to start pressing the brakes. This enabled the definition of a reaction field, which determined the needed deceleration input for the DC algorithm. The tuned DC algorithm was tested in a fixed-base driving simulator experiment. It was shown that the active deceleration support improved the car-following performance while reducing the driver brake pedal input magnitude in the conditions tested.