A car-following collision prevention control device based on the cascaded fuzzy inference system |
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Authors: | Jeich Mar Hung-Ta Lin |
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Institution: | Department of Communications Engineering, Yuan-Ze University, 135 Yuan-Tung, Nei-Li, Taoyuan 320, Taiwan, ROC |
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Abstract: | A car-following collision prevention control device based on the cascaded fuzzy inference system (CFIS), consisting of a velocity fuzzy controller and an acceleration fuzzy controller, to nonlinearly control car acceleration or deceleration rate is proposed. The distance and speed relative to the car in front are measured using spread spectrum radar and applied to the collision prevention control device. The output acceleration or deceleration rate obtained from the CFIS car-following collision prevention system is based on the characteristics of the vehicle. The simulation results demonstrate that the presented CFIS control device can solve the oscillation problems for final relative distance between the lead vehicle (LV) and following vehicle (FV) and relative speed. When the LV applies the brake suddenly or a stationary obstacle appears in front of vehicle moving at high speed on the roadway, the CFIS control device can safely avoid a collision. The CFIS car-following collision prevention control device proposed in this paper can provide a safe, reasonable and comfortable drive. |
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Keywords: | Car-following Cascaded fuzzy inference system Spread spectrum radar |
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