| 摘要 |
<p>A device and method for controlling an input clutch of a working vehicle, where, when a brake is released, the input clutch (10) is not rapidly engaged to suppress a large variation in torque, and when the brake is finely adjusted by a brake operation means (22), clutch pressure (Pc) of the input clutch is varied relative to a variation in the brake operation means with a high level of response, which enables highly accurate fine adjustment. Clutch pressure is detected by a clutch pressure detection means (16), and a controller (24) determines whether or not a clutch pressure rising rate is less than the limit rising rate of supply pressure (Pm). Then, the controller adjusts the supply pressure as follows by the use of an input clutch control valve (12): if it is determined that the clutch pressure rising rate is less than the supply pressure limit rising rate, the supply pressure is adjusted so that the difference between the supply pressure and the clutch pressure is a predetermined offset pressure, and if it is determined that the clutch pressure rising rate is not less than the supply pressure limit rising rate, the supply pressure is adjusted so as to rise at the supply pressure limit rising rate.</p> |
