Levels of Steering Control: Reproduction of Steering Wheel Movements

摘要

A schematic description of the driving control process using levels of control, i.e., precognitive, pursuit, and compensatory, is presented. The efficiency of the higher levels of control depends on the accuracy of internal information (knowledge of the road, the car, etc.) plus proprioceptive feedback. The sensitivity of the proprioceptive system was analyzed by measuring subjects' accuracy when asked to reproduce steering wheel positions without visual feedback. For discrete positions, standard deviation increases with steering wheel angle amplitude. However, relative errors are greatest with small angles. Steering force reduces the variation in reproduction. For continuous movements, reproductions are less accurate with low movement velocity than for the discrete positions. An additional velocity overshoot occurs. Rapid movements show higher positioning accuracy than slow.