Fuzzy Controller for Obstacle Avoidance in Electric Wheelchair with Ultrasonic Sensors

Electric wheelchair navigation is based on A strategy for fuzzy logic. The main features of the electric wheelchair are to navigate freely in an unknown environment and avoid the other objects as obstacles. A combination of ultrasonic sensors is used to facilitate navigation and obstacle avoidance. The fuzzy behavior producer is embedded in an 8-bit chip. The control software implements behavior-based artificial intelligence. The obstacle avoidance behaviors are successfully implemented by formulating a set of fuzzy rules.