| 摘要 |
PURPOSE:To ensure continuity of action in a hydraulic control system while executing optimum feedback control in the respective parts of a speed change. CONSTITUTION:A progress condition of a speed change is detected to change a control law of feedback control in accordance with the progress condition. Here based on a target value by the control law of feedback control used just before, a target value by the control law of feedback control used from now on is calculated. As a result, continuity of the target value is ensured, and a pressure of oil can be prevented from quick changing in a stepped shape, so that a smooth speed change characteristic can be obtained. |
