Pressure control device and method for programme-controlled actuation of a pressure-regulating mechanism

Pressure control of one of the above claims, characterized in that criteria are provided and that a change from a current state (z(t)) to a subsequent state (z(t+1)) takes place with a satisfaction of at least one criterion.

Pressure control of one of the above claims, characterized in that the criteria include time criteria.

Pressure control of one of the above claims, characterized in that the criteria include event criteria.

Pressure control of one of the above claims, characterized in that the pressure control operates together with a shift sequence control, which coordinates shifts, which correspond to changes of constellations in a transmission, wherein a change of the constellation results in a change of the force transmission of the transmission;

• and, wherein a sequence of a shifting is subdivided into phases (P0, P1, P2, P3, P4, P5, P6, P7).

Pressure control of one of the above claims, characterized in that the states (z;

• Z0, Z1, Z2, Z3, Z4, Z5, Z6, Z7) are assigned to the phases (P0, P1, P2, P3, P4, P5, P6, P7).

Pressure control of one of the above claims, characterized in that several states (z;

• Z0, Z1, Z2;
• Z3, Z5) are assigned to one phase (P0;
• P1).

Pressure control of one of the above claims, characterized in that a desired pressure trace (pS) at a time point (t) is given by:

• pS(t)=ps(t)+po(t),
• wherein pB is a base pressure and po is an offset pressure.

Pressure control of one of the above claims, characterized in that the states of the ambient include the type of shift and/or the output rpm and/or the oil temperature and/or the engine rpm and/or the engine output torque and/or the throttle flap position.

Pressure control of one of the above claims, characterized in that the pressure control includes a temperature compensating device which compensates temperature-dependent non-linearities and/or that the pressure control includes a feedback device which feeds back the transmission variables and/or the ambient variables.

Method for the program-controlled drive of at least one pressure actuating member in order to influence the hydraulic constellation in a transmission via the pressure (p), characterized in that the program-controlled drive takes place via changes of states (z;

• Z0, Z1, Z2, Z3, Z4, Z5, Z6, Z7) from current states (z(t)) to subsequent states (z(t+1));
• and, that the states (z;
• Z0, Z1, Z2, Z3, Z4, Z5, Z6, Z7) are configurable without change of program.