Method and device for operating an internal combustion engine having a catalytic converter

Abstract

A method and a device for operating an internal combustion engine having a catalytic converter are described making it possible to heat the catalytic converter more quickly. An additional load of the internal combustion engine is applied to heat the catalytic converter.

1 . A method for operating an internal combustion engine including a catalytic converter, the method comprising: 
 applying an additional load of the internal combustion engine to heat the catalytic converter;    wherein the additional load of the internal combustion engine is applied to heat the catalytic converter only if a start operation of the internal combustion engine has ended.    
   
   
       2 . A method for operating an internal combustion engine including a catalytic converter, the method comprising: 
 applying an additional load of the internal combustion engine to heat the catalytic converter;    wherein the additional load of the internal combustion engine is applied to heat the catalytic converter only if a temperature of the internal combustion engine is below a preset threshold value.    
   
   
       3 . A method for operating an internal combustion engine including a catalytic converter, the method comprising: 
 applying an additional load of the internal combustion engine to heat the catalytic converter;    wherein the additional load of the internal combustion engine is applied to heat the catalytic converter only if the internal combustion engine is in an idle mode operating state.    
   
   
       4 . A method for operating an internal combustion engine including a catalytic converter, the method comprising: 
 applying an additional load of the internal combustion engine to heat the catalytic converter; and    deactivating the additional load when the internal combustion engine leaves an idle mode operating state.    
   
   
       5 . An internal combustion engine sub-system, comprising: 
 a catalytic converter; and    an additional load of the internal combustion engine configured to heat the catalytic converter;    wherein the additional load of the internal combustion engine is applied to heat the catalytic converter only if a start operation of the internal combustion engine has ended.    
   
   
       6 . An internal combustion engine sub-system, comprising: 
 a catalytic converter; and    an additional load of the internal combustion engine configured to heat the catalytic converter;    wherein the additional load of the internal combustion engine is applied to heat the catalytic converter only if a temperature of the internal combustion engine is below a preset threshold value.    
   
   
       7 . An internal combustion engine sub-system, comprising: 
 a catalytic converter; and    an additional load of the internal combustion engine configured to heat the catalytic converter;    wherein the additional load of the internal combustion engine is applied to heat the catalytic converter only if the internal combustion engine is in an idle mode operating state.    
   
   
       8 . An internal combustion engine sub-system, comprising: 
 a catalytic converter; and    an additional load of the internal combustion engine configured to heat the catalytic converter;    deactivating the additional load when the internal combustion engine leaves an idle mode operating state.