| 摘要 |
PURPOSE:To make proper control of the working oil pressure by furnishing a correcting means to correct the control value for a solenoid valve a certain while after start of engine, and by allowing a prohibiting means to prohibit work of the correcting means when a sensing means has sensed restart of engine after its standstill for a short time. CONSTITUTION:A control unit C corrects the control valve for a duty solenoid valve 10 a certain while after start of engine, so that eventual inclusion of air in a duty pressure passage 12 while the engine is at a standstill admits performance of duty pressure control with a control value subjected to necessary correction for this air inclusion. Because correction is prohibited by the control unit C when restart of engine after its short time standstill is sensed, correction will be made only in case where such a correction for influence of the included air is actually required. |
