Method for operating a component part disposed in an exhaust gas region of an internal combustion engine and device for implementing the method

Abstract

A method for operating a component part situated in an exhaust gas region of an internal combustion engine, and a device for carrying out the method are proposed, in which, in a first operating phase, an exhaust gas component is embedded, and which, in a second operating phase, is regenerated from the exhaust gas component. The second operating phase may be started both as a function of the operating state of the component part and/or as a function of the operating state of the internal combustion engine, and also by an external start signal. If there is an external start signal present, the second operating phase is preferably only started if, at the same time, at least one additional conditions is satisfied. The external start signal is made available, for instance, by a diagnostic unit which is connected via a diagnosis interface.

1 - 11 . (canceled)  
   
   
       12 . A method for operating a component part situated in an exhaust gas region of an internal combustion engine, comprising: 
 in a first operating phase, embedding an exhaust gas component in the component part;    in a second operating phase, regenerating the component part from the exhaust gas component;    starting the second operating phase as a function of at least one of an operating state of the internal combustion engine and a loading state of the component part; and    starting the second operating phase by an external start signal.    
   
   
       13 . The method as recited in  claim 12 , further comprising: 
 conveying the external start signal via a diagnosis interface.    
   
   
       14 . The method as recited in  claim 12 , wherein the external start signal is made available by a diagnostic unit.  
   
   
       15 . The method as recited in  claim 12 , further comprising: 
 if an external start signal is present, starting the second operating phase only if, at the same time, at least one other condition is satisfied.    
   
   
       16 . The method as recited in  claim 15 , wherein at least one of: 
 a temperature of the internal combustion engine exceeds a prespecified threshold value, and    a driving speed of a motor vehicle, in which the internal combustion engine is situated, is equal to zero.    
   
   
       17 . The method as recited in  claim 15 , wherein a rotary speed of the internal combustion engine corresponds to an idling speed.  
   
   
       18 . The method as recited in  claim 15 , wherein a performance specification signal for a performance of the internal combustion engine corresponds to a value that is sufficient only for a keeping up of an idling speed of the internal combustion engine.  
   
   
       19 . The method as recited in  claim 15 , wherein an idling controller signal made available by an idling controller is in a steady-state condition.  
   
   
       20 . The method as recited in  claim 12 , wherein the component part includes an adsorption catalyst.  
   
   
       21 . The method as recited in  claim 12 , wherein the component part includes a particulate filter.  
   
   
       22 . The method as recited in  claim 21 , wherein the particulate filter includes a Diesel particulate filter.  
   
   
       23 . A device for operating a component part situated in an exhaust gas region of an internal combustion engine, comprising: 
 an arrangement for, in a first operating phase, embedding an exhaust gas component in the component part;    an arrangement for, in a second operating phase, regenerating the component part from the exhaust gas component;    an arrangement for starting the second operating phase as a function of at least one of an operating state of the internal combustion engine and a loading state of the component part; and    an arrangement for starting the second operating phase by an external start signal.