| 摘要 |
PROBLEM TO BE SOLVED: To ensure the smooth movement of a vehicle body by turning the vehicle body at a subtle turning angle. SOLUTION: A steering system changeover mechanism is capable of setting a two-wheel steering system allowed to steer only two wheels which are either two front wheels or two rear wheels, a four-wheel steering system allowed to steer four front and rear wheels, a same-phase changeover steering mode of changing the front wheels and rear wheels into the same phase in the four- wheel steering system, an opposite-phase changeover steering mode of changing the front wheels and rear wheels into opposite phases in the four-wheel steering system, and a rear wheel turning angle adjusting steering pattern allowed to set a rear wheel turning angle to an optional turning angle equal to or smaller than a front wheel turning angle in each of the same-phase and opposite-phase changeover steering modes. |
