International Journal of Control, Automation and Systems 2012; 10(3): 517-528
Published online June 13, 2012
https://doi.org/10.1007/s12555-012-0308-6
© The International Journal of Control, Automation, and Systems
The study of human behavior during driving is of primary importance for improving the driver’s security. In this study, we propose a hierarchical driver_vehicle_environment fuzzy system to analyze driver’s behavior under stress conditions on a road. We include climate, road and car conditions in fuzzy modeling. For obtaining fuzzy rules, experts’ opinions are benefited by means of questionnaires on effects of parameters such as climate, road and car conditions on driving capabilities. The number of fuzzy rules is optimized by Particle Swarm Optimization (PSO) algorithm. Also the frequency of pressing on brake and gas pedals and the number of car’s direction changes are used to determine the driver’s behavior under different conditions. Three different positions are considered for driving and decision making; one position in driving lane and two positions in opposite lane. A fuzzy model called Model 1 is presented for modeling the change of steering angle and speed control by considering time distances with existing cars in these three positions, the information about the speed and direction of car, and the steering angle of car. The behaviors of different drivers under two stress conditions are investigated. Also we obtained two other models based on fuzzy rules called Model 2 and Model 3 by using Sugeno fuzzy inference. Model 2 has two linguistic terms and Model 3 has four linguistic terms for estimating the time distances with other cars. The results of three models are compared. The com-parative studies have shown that simulation results are in good agreement with the real world situa-tions.
Keywords Decision making, driver_vehicle_environment system, driver’s behavior, fuzzy modeling, mathematical modeling, stress condition.
International Journal of Control, Automation and Systems 2012; 10(3): 517-528
Published online June 1, 2012 https://doi.org/10.1007/s12555-012-0308-6
Copyright © The International Journal of Control, Automation, and Systems.
Sehraneh Ghaemi, Sohrab Khanmohammadi, Mohammad Ali Tinati, and Mohammad Ali Badamchizadeh
University of Tabriz, Iran
The study of human behavior during driving is of primary importance for improving the driver’s security. In this study, we propose a hierarchical driver_vehicle_environment fuzzy system to analyze driver’s behavior under stress conditions on a road. We include climate, road and car conditions in fuzzy modeling. For obtaining fuzzy rules, experts’ opinions are benefited by means of questionnaires on effects of parameters such as climate, road and car conditions on driving capabilities. The number of fuzzy rules is optimized by Particle Swarm Optimization (PSO) algorithm. Also the frequency of pressing on brake and gas pedals and the number of car’s direction changes are used to determine the driver’s behavior under different conditions. Three different positions are considered for driving and decision making; one position in driving lane and two positions in opposite lane. A fuzzy model called Model 1 is presented for modeling the change of steering angle and speed control by considering time distances with existing cars in these three positions, the information about the speed and direction of car, and the steering angle of car. The behaviors of different drivers under two stress conditions are investigated. Also we obtained two other models based on fuzzy rules called Model 2 and Model 3 by using Sugeno fuzzy inference. Model 2 has two linguistic terms and Model 3 has four linguistic terms for estimating the time distances with other cars. The results of three models are compared. The com-parative studies have shown that simulation results are in good agreement with the real world situa-tions.
Keywords: Decision making, driver_vehicle_environment system, driver’s behavior, fuzzy modeling, mathematical modeling, stress condition.
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