State determination in front of the direction for a by means of a working fluid, which element and the state determination in front of the direction for a fluid pressure expensive circuit

摘要

The determining section (72) for determining the state of a determined to be charged element of the completion of the filling of the clutch (62) with hydraulic fluid and the working limit of the memory (64) on the basis of the displacement of the piston-shaped valve body (42). This is done, because the completion of the filling of the clutch with hydraulic fluid and the working limit of the memory (64) are determined directly, so that the completion of the filling of the hydraulic oil into the coupling (62) and the working limit of the memory (64) can be determined with high precision, independently of differences of the material and time variability. In addition, they can, without the provision of the hydraulic control circuit with any special device to be determined, as a result of which the advantage of a simple construction results in.