| 摘要 |
<p>A hydraulic circuit (1) for agricultural or earthmoving machinery, having one or more electrically operated hydraulic distributors (2); a pump unit (3) for supplying a pressurized fluid to the hydraulic distributors (2) which, in turn, supply the pressurized fluid, on command, to the hydraulic power take-offs (6) of the hydraulic circuit (1); and an electronic central control unit (4) for controlling the electrically operated valves (5) of the hydraulic distributors (2) to regulate supply of the pressurized fluid to the hydraulic power take-offs (6); the hydraulic circuit (1) also having a self-calibrating device (11) for determining, on command, the position, in a reference plane, of the response curves (Q(I)) of individual electrically operated valves (5), so that the pressurized fluid supply set by the driver of the vehicle for any one hydraulic power take-off (6) always corresponds exactly with the amount actually supplied by the take-off (6). <IMAGE></p> |
