| 摘要 |
The vehicle has at least two steerable wheels mounted on either side of its chassis. A first hydraulic steering system (14) is associated with a first wheel (7), with a similar second hydraulic system (15) associated with a second wheel (8). A hydraulic pressure connecting and pressure control circuit (10,16) delivers pressurised fluid to the two steering systems. The control circuit is such as to allow steering of an inner wheel, during a curved trajectory of the vehicle, to be steered through an angle greater than that through which the outer wheel is steered, according to a predetermined relationship. ADVANTAGE - Improved precision of steering control, giving better wheel alignment and reduced tyre wear.
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