Method for Operating an Internal Combustion Engine

Abstract

A method for operating a hybrid drive in a vehicle with an internal combustion engine and at least one electric machine connected thereto which is in connection with at least one energy storage device including operating the internal combustion engine is operated in overload mode in at least one preferably exceptional operating situation of the hybrid drive in order to avoid power losses at low loading state of the energy storage device.

1 - 29 . (canceled) 
     
     
         30 . A method for operating an internal combustion engine which comprises at least one turbocharger and at least one oil pump, comprising the step of operating the oil pump for at least a duration of the minimum coasting period with a cut-off command following a high-load or full-load phase of the internal combustion machine. 
     
     
         31 . The method according to  claim 30 , with the oil pump being driven by the internal combustion engine, comprising operating the internal combustion engine driving the oil pump for at least the duration of a minimum coasting period with a cut-off command following a high-load or full-load phase. 
     
     
         32 . The method according to  claim 30 , especially with an electrically drivable oil pump, comprising operating the oil pump for at least a minimum coasting period after the internal combustion engine is cut off. 
     
     
         33 . The method according to  claim 32 , wherein the minimum coasting period is determined depending on at least one operating parameter, including the speed of the turbocharger, the torque or the injection quantity of the internal combustion engine. 
     
     
         34 . The method according to  claim 33 , wherein the minimum coasting period is predefined. 
     
     
         35 . A method for operating a vehicle which comprises a serial hybrid drive train with at least one internal combustion engine and at least a first and second electric machine, with the first electric machine being operated by the internal combustion machine in the manner of a generator in at least one operating range and the second electric machine drives directly or indirectly at least one drive wheel of the vehicle, comprising operating the internal combustion engine under partial load or in idle running at standstill of the vehicle and/or when a door of the vehicle is opened.