Abstract: An internal combustion engine (1), in particular for a motor vehicle, is described, that is provided with an injection valve (8), using which fuel can be directly injected into a combustion chamber (4) either in a first mode during an intake phase or in a second mode during a compression phase. In addition, a control unit (16) is provided for the control and/or feedback control of the fuel quantity injected into the combustion chamber (4), the control and/or feedback control being different in the two modes. The switchover from the first mode initially (26) to a transitional operation of the second mode and then (31, 37) to a normal operation of the second mode is effected by the control unit (16).

Abstract: An internal combustion engine (1), especially of a motor vehicle, is described. The engine (1) is provided with a combustion chamber (4) into which fuel can be injected in a first operating mode during a compression phase and in a second operating mode during an induction phase. The engine (1) is provided with a control apparatus (18) for switching over between the operating modes. The engine (1) includes an exhaust-gas recirculation having an exhaust-gas recirculation valve (14). The engine (1) is switched by the control apparatus (18) into the first operating mode when the exhaust-gas recirculation valve (14) is jammed in the open state.

Abstract: Method and arrangement for operating an internal combustion engine (10) which can be operated in several modes of operation, especially an internal combustion engine (10) having direct injection (DE) or intake manifold injection (SRE) and with a control apparatus (11). The control apparatus (11) or its software has a plurality of functions (12) and a scheduler (13) for activating the functions (12). Operating modes are assigned to the functions (12) and the functions (12) are activated by the scheduler (13) in dependence upon the assigned modes of operation.

Abstract: An internal combustion engine is provided with an injection valve with which fuel can be injected directly into a combustion chamber either during a compression phase in a first operating mode or during an intake phase in a second operating mode. In addition, a control unit is provided for shifting between the two operating modes and for differentiated control and/or regulation of the performance quantities that influence the actual torque of the internal combustion engine as a function of a setpoint torque in both operating modes. A change in the actual torque during a shifting operation is determined by the control unit, and at least one of the performance quantities is influenced by the control unit as a function thereof.

Abstract: An internal combustion engine (1), especially of a motor vehicle, is described. The engine (1) is provided with a combustion chamber (4) into which fuel can be injected in a first operating mode during a compression phase and in a second operating mode during an induction phase. The engine (1) is provided with a control apparatus (18) for switching over between the operating modes. The engine (1) includes an exhaust-gas recirculation having an exhaust-gas recirculation valve (14). The engine (1) is switched by the control apparatus (18) into the first operating mode when the exhaust-gas recirculation valve (14) is jammed in the open state.

Abstract: A method for adjusting the torque in an internal combustion engine is introduced having the steps: determining a desired torque; determining an operating point from measured values for air charge and rpm; determining a standard torque for this operating point; determining a desired efficiency from standard torque and desired torque; determining the lambda corresponding to this efficiency; determining the fuel quantity from the corresponding lambda and the air charge derived from measurement quantities. The fuel quantity in combination with the air charge yields the corresponding lambda for realizing the desired torque.

Abstract: An internal combustion engine, especially for a motor vehicle, is described which is provided with a combustion chamber into which fuel can be injected in at least two operating modes. A control apparatus is provided with which a switchover can be made between the operating modes in dependence upon a desired operating mode. With the control apparatus, an operating-mode request can be determined in dependence upon whether the individual operating modes are in the position to generate the requested torque while maintaining pregiven lambda limits.

Abstract: A method is described for operating an internal combustion engine (1) especially of a motor vehicle, wherein a lean air/fuel mixture is supplied to a combustion chamber (4) in a first mode of operation and a stoichiometric or a rich air/fuel mixture is supplied to the combustion chamber in a second mode of operation. This supplied air/fuel mixture is then ignited in the combustion chamber (4). The ignition time point or the ignition angle (ZW) for the ignition of the air/fuel mixture is shifted in the direction of retardation for a transition between the two modes of operation.

Abstract: An internal combustion engine in for a motor vehicle in (1) is described. The internal combustion engine (1) has an injection valve with which fuel can be injected directly into a combustion chamber either during a compression phase in a first operating mode or during an intake phase in a second operating mode. In addition, a control unit is provided for shifting between the two operating modes and for differential control and/or regulation of the performance quantities that influence the actual moment of the internal combustion engine in both operating modes as a function of a setpoint moment. A change in the actual moment during a shifting operation is determined by the control unit and at least one of the performance quantities is influenced by the control unit as a function thereof.

Abstract: An internal combustion engine especially for a motor vehicle is described which is provided with a combustion chamber into which fuel can be injected in at least two operating modes. A control apparatus is provided with which a switchover can be made between the operating modes in dependence upon a desired operating mode. The desired operating mode can be determined from a plurality of operating mode requests by the control apparatus.

Abstract: The invention is directed to an internal combustion engine, especially for a motor vehicle. The engine has a combustion chamber into which fuel can be injected in at least two operating modes. A control apparatus is provided with which a switchover between the operating modes can be effected. A desired value (rlmd$s) can be determined with the control apparatus for the air charge in the combustion chamber. The desired value (rlmd$s) defines a maximum value for the air charge in the combustion chamber which is not exceeded.

Abstract: An internal combustion engine, in particular for a motor vehicle, is described. The internal combustion engine is equipped with an injection valve with which fuel can be injected directly into a combustion chamber either, in a first operating mode, during a compression phase or, in a second operating mode, during an intake phase. Also provided is a control device for switching between the two operating modes and for differing open-loop and/or closed-loop control, in the two operating modes, of the operating variables influencing the actual torque of the internal combustion engine as a function of a reference torque. A change in the actual torque during a switchover is operation is detected by the control device and as a function thereof, at least one of the operating variables is influenced by the control device.

Abstract: An internal combustion engine , particularly for a motor vehicle, which is provided with an injector (8) with the assistance of which fuel can be injected directly into a combustion chamber either in a first operating mode, during an induction period, or in a second operating mode, during a compression period. Furthermore, a control unit is provided for determining the air mass supplied to the combustion chamber , and for differently controlling and/or regulating the fuel mass injected into the combustion chamber in both operating modes. The control unit switches over between the first operating mode and the second operating mode as a function of the air mass supplied to the combustion chamber.

Abstract: An internal combustion engine, in particular for a motor vehicle, is provided with injection valves with which fuel can be directly injected into the combustion chambers of the internal combustion engine either in a first mode during an induction period or in a second mode during a compression period. The internal combustion engine has an electronic control unit, by which the fuel quantities injected into the combustion chambers in the two modes can be open-loop and/or closed-loop controlled in varying ways. The electronic control unit is configured such that the first mode can be operated as the normal mode and the second mode as the exceptional mode. In this manner, further fuel savings are achieved in the operation of the internal combustion engine.

Abstract: The invention is directed to a method for determining the actual torque of an internal combustion engine having gasoline direct injection. In the method, the torque of the engine is computed with a model in dependence upon operating variables. A value for the maximum torque, which would be achieved under standard conditions, is specified from a pregiven characteristic field in dependence upon operating variables which characterize an operating point of the engine. An efficiency is inputted for at least one torque-influencing actuating variable of the engine with the efficiency being formed in dependence upon a current or present value of the actuating variable and a standard value of the actuating variable. The maximum torque is corrected with the efficiency to determine the actual torque. The invention is also directed to an arrangement for determining the actual torque of the engine.

Abstract: An internal combustion engine for a motor vehicle in particular is described, provided with an injection valve for injecting fuel directly into a combustion chamber either during an intake phase in a first operating mode or during a compression phase in a second operating mode. In addition, a control unit is also provided for controlling and/or regulating a fuel mass injected into the combustion chamber differently in the two operating modes. The control unit is designed so that a required air mass can be determined from a torque demand in the first operating mode, and then the fuel mass to be injected can be determined from the required air mass, and in the second operating mode the fuel mass injected can be determined directly from the torque demand.