System for operating an internal combustion engine with direct injection, specially in a motor vehicle

A method of operating an internal combustion engine including an internal combustion engine of a motor vehicle wherein the fuel is injected directly into the combustion chamber of the engine either in a first operating mode during a compression phase or in a second operating mode during an induction phase, the method comprising the steps of:

• feeding back at least a portion of the exhaust gas generated during combustion into the combustion chamber;
• controlling the quantity of the exhaust gas fed back into the combustion chamber differently in the two modes of operation;
• utilizing the quantity of the exhaust gas, which is fed back into the combustion chamber of the engine, in the control of at least one of the fuel mass, which is injected into the combustion chamber, and the ignition spark, which ignites the fuel in the combustion chamber;
• and, the control of said exhaust gas being at least one of an open-loop control and a closed-loop control;
• and,
• determining the quantity of the actually fed back exhaust gas and comparing said quantity of the actually fed back exhaust gas to the desired quantity of the fed back exhaust gas and executing a correction in dependence thereon.

Electric storage medium for a control apparatus of an internal combustion engine including an internal combustion engine of a motor vehicle and wherein fuel is infected directly into the combustion chamber of the engine either in a first operating mode during a compression phase or in a second operating mode during an induction phase, the electric storage medium comprising:

• a program stored thereon suitable to be run and to execute the following method steps on a computer apparatus:
• feeding back at least a portion of the exhaust gas generated during combustion into the combustion chamber;
• controlling the quantity of the exhaust gas fed back into the combustion chamber differently in the two modes of operation;
• and,
• utilizing the quantity of the exhaust gas, which is fed back into the combustion chamber of the engine, in the control of at least one of the fuel mass, which is injected into the combustion chamber, and the ignition spark, which ignites the fuel in the combustion chamber;
• and, the control of said exhaust gas being at least one of an open-loop control and a closed-loop control.

An internal combustion engine including an internal combustion engine for a motor vehicle, the engine comprising:

• an injection valve with which fuel can be injected into a combustion chamber either in a first mode of operation during an induction phase or in a second mode of operation in an compression phase;
• means for feeding back the exhaust gas into the combustion chamber;
• a control apparatus for controlling the quantity of the exhaust gas, which is fed back into the combustion chamber, differently in the two modes of operation;
• and, wherein the control of said exhaust gas is at least one of an open-loop control and a closed-loop control;
• and,
• means for utilizing the quantity of the exhaust gas, which is fed back into the combustion chamber of the engine, in the control of at least one of the fuel mass, which is infected into the combustion chamber, and the ignition spark, which ignites the fuel in the combustion chamber;
• and, the control of said exhaust gas being at least one of an open-loop control and a closed-loop control.