| 摘要 |
The invention relates to a method for operating an automatic transmission (1) of a motor vehicle, wherein a hydraulic pump associated with a hydraulic system is driven by a drive motor for supplying pressure, wherein a hydrodynamic start-up element (20) drivingly connects the drive motor with the automatic transmission (1) during the starting up of the motor vehicle, and wherein hydraulic switch elements (B1, B2, B3, C1, C2) are actuated for the switching of gear steps. When the drive motor is started, a switch element (B1, B2, B3, C1, C2) of the automatic transmission (1) is closed, wherein during the closing process of the switch element (B1, B2, B3, C1, C2), a time course of a rotational speed (nAb, nTu) of the automatic transmission (1) is detected. Using the detected rotational speed course (nAb, nTu), a time (t1) is determined at which a pressure present in the hydraulic system reaches or exceeds a target pressure level. |
