View article

This research developed an automatic steering system for electronic robot vehicles that is economical in comparison with commercial automatic steering systems today. A 48-VDC battery-operated electronic vehicle was used as a platform that has been modified the steering system into an automatic steering system using the following steps. First, the motor specification determination using strain gauges attached to the steering shaft; second, steering controller method/algorithm selection; third, steering system calibration; fourth, steering angle determination; and finally, autonomous navigation test runs. The lateral and heading errors were 0.08 m and 1.2 deg, respectively. These results indicated that the developed automatic steering system could control the robot vehicle accurately in an autonomous navigation.