Active deceleration support in car following
article
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 from driving 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.
Topics
Car followingDeceleration control (DC) algorithmHaptic feedback (HF)Brake pedalsControl activitiesDC algorithmDecision pointsDriver modelsDriver support systemDriving simulatorGas pedalsLead vehiclesMonte Carlo analysisReaction fieldsAutomobile driversAutomobile simulatorsFriction materialsMathematical models
TNO Identifier
425145
ISSN
10834427
Source
IEEE Transactions on Systems, Man, and Cybernetics Part A:Systems and Humans, 40(6), pp. 1271-1284.
Article nr.
No.: 5451062
Pages
1271-1284
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