Abstract: A method for operating a hybrid vehicle includes, determining a shift element to be utilized for decoupling of slip and a decoupling differential speed depending on whether a starting process is carried out, depending on whether the transmission is transferred from a torque-transmitting state into a non-torque-transmitting state or from a non-torque-transmitting state into a torque-transmitting state, depending on whether a gear ratio change is carried out, and depending on whether the hybrid vehicle includes a hydrodynamic starting component.

Abstract: A method for operating a drive train of a motor vehicle may include, for a starting process of an internal combustion engine, transferring the separating clutch from a disengaged condition into an engaged condition or a slip state such that the electric machine accelerates the internal combustion engine to a starting speed. The method may further include actuating a torque-transmitting element between the electric machine and the output shaft to enter a slip state. The method may also include increasing the torque of the electric machine to reliably reach and hold the slip state of the torque-transmitting element. Additionally, the method may include operating the electric machine as a generator or as a motor depending on an expected load direction of the drive train during the starting process to reliably reach and hold the torque-transmitting element in the slip state.

Abstract: A method for operating a drive train of a motor vehicle may include, for a starting process of an internal combustion engine, transferring the separating clutch from a disengaged condition into an engaged condition or a slip state such that the electric machine accelerates the internal combustion engine to a starting speed. The method may further include actuating a torque-transmitting element between the electric machine and the output shaft to enter a slip state. The method may also include increasing the torque of the electric machine to reliably reach and hold the slip state of the torque-transmitting element. Additionally, the method may include operating the electric machine as a generator or as a motor depending on an expected load direction of the drive train during the starting process to reliably reach and hold the torque-transmitting element in the slip state.

Abstract: A clutch arrangement for a transmission which comprises a wet separating clutch having a clutch housing, in which a clutch piston separates an interior space from a pressure chamber. The separating clutch is engaged by pressurizing the pressure chamber with an actuating pressure so that the clutch piston moves into an actuation position and, as a result, two clutch halves, located in the interior space and surrounded by fluid, frictionally engage one another. So as to reliably engage the separating clutch without impairing the surrounding components with the fluid, the actuating pressure includes at least one compensation pressure portion that corresponds to the counter pressure depending on the fluid located in the interior space opposing the clutch piston during transfer into the actuation position. A method of controlling a separating clutch, and a computer program product and a data medium incorporating the computer program product are also disclosed.