AUTOMOTIVE SAFETY CONTROL SYSTEM BASED ON TIMEAXIS DESIGN

Timeaxis design is a design concept that incorporates the concept of time axis into design theory and methodology. Under this design framework, different methods, such as models those who integrate multiple timescales, those employ identity mapping to describe non-linear and non-steady phenomena and those employ genetic network programing to describe phenomena evolving gradually as times pass, have been proposed. We applied Timeaxis design to develop an automotive safety control system that considers risks at a short timescale (second/minute), medium timescale (hour/day), and long timescale (month/year). This system displays the driving state on the basis of the state of the driver’s vehicle, surrounding vehicles, and driver’s physical conditions, generates the vehicle control algorithm on the basis of the driver’s state, and provides driving advice to the driver in real time. With this system, it is possible to correspond to future safety issues such as problems caused by mixing of autonomous vehicles and conventional vehicles, problems caused by reduction in driving skill due to automation of driving and problems caused by the decline in driving ability with aging. © 2018 Published by University of Kragujevac, Faculty of Engineering Satoru Furugori, Ph.D., Assoc. prof., Keio University, Graduate School of Science and Technology, 3-14-1, Hiyoshi Kohoku-ku Yokohama 223-8522, Japan, furusa212@gmail.com (*Corresponding author) Takeo Kato, Ph.D.,assist. prof., Keio University, Department of Mechanical Engineering, -14-1 Hiyoshi Kohoku-ku Yokohama 223-8522, Japan, kato@mech.keio.ac.jp Yoshiyuki Matsuoka, Ph.D. prof.., Keio University, Department of Mechanical Engineering, -14-1 Hiyoshi Kohoku-ku Yokohama 223-8522, Japan, matsuoka@mech.keio.ac.jp 44 Satoru Furugori, Takeo Kato, Yoshiyuki Matsuoka Mobility & Vehicle Mechanics, Vol. 44, No. 3, (2018), pp. 43-52