Patent ID: 8480536

Claim:
A method for operating a hybrid drive of a vehicle having an internal combustion engine and at least one electric drive to which at least one traction battery is assigned, the method comprising: starting the internal combustion engine from a purely electrical driving operating mode of the hybrid drive using a direct start without a starter; wherein the internal combustion engine of the hybrid drive is started as a function of a torque command of a driver, if the at least one electric drive is not able to implement a desired torque; wherein in response to a non-presence of direct start readiness of the internal combustion engine, a slip torque-regulated separating clutch transmits an engine drag-torque to the internal combustion engine; and wherein after an expiration of a time span within which the internal combustion engine is not started, the separating clutch is opened and the internal combustion engine stops oscillating within a settling oscillating range, the settling oscillating range being within a target shut-off range.