| 摘要 |
A four wheel steering system for non-articulated vehicles including a digital angle register for periodically generating front wheel angle information theta F1, theta F2 . . . theta FN representing the incremental angular positions of the front wheels and a rear wheel angle generator for storing the information and utilizing it after a delay distance D to control the angular positions theta R1, theta R2 . . . theta RN of the rear wheels.
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