Patent ID: 9180768
Filing Date: 2015-11-10
Classification: B60K,B60L,B60W,F02D,F02N,F16D,Y02T

Abstract:
1. A method for operating a hybrid drive device, the method comprising: determining a slip torque transmitted by a separating clutch, wherein the slip torque is determined as a function of a speed characteristic of a drive shaft of at least one combustion engine at least when at least one of starting and stopping the combustion engine; and taking into account the determined slip torque when operating the hybrid drive device, wherein the hybrid drive device includes the at least one combustion engine and at least one electric machine, and wherein the combustion engine and the electric machine are mechanically connectible and operatively connectible to each other by the separating clutch, wherein the slip torque is determined as a function of a compression torque of the combustion engine, the compression torque being reduced after the starting of the drive shaft of the at least one combustion engine, wherein the determined slip torque is taken into account so that the functioning of the separating clutch is checked based on the determined slip torque, wherein the checking of the separating clutch includes detecting faults in at least one of (i) an actuation system of the separating clutch and (ii) a control of the separating clutch.