Patent ID: 9109526
Filing Date: 2015-08-18
Classification: F02D

Abstract:
1. A control unit for regulating a fuel supply during a cold-running phase of an internal combustion engine, comprising: an input port configured to receive a combustion signal about a presence of a combustion state of a fuel mixture in the internal combustion engine; a P-element configured to provide a P-manipulated variable that sets a fuel reduction upon the presence of the combustion state that is a rich combustion and sets a fuel increase upon the presence of the combustion state that is a lean combustion; an I-element configured to provide an I-manipulated variable that sets the fuel increase; and an output port configured to control the fuel supply, wherein the P-manipulated variable is substantially offset from the I-manipulated variable during the cold-running phase upon the presence of the rich combustion in a stationary state.