Robert Boschgmbh

Dieter Volz

Werner Hess

Michael Oder

Christian Koehler

Juergen Pantring

Georg Mallebrein

Ernst Wild

Lutz Reuschenbach

Hartmut Bauer

Werner Herden

Werner Mezger

Rainer Norgauer

Gernot Wuerfel

Rene Deponte

Roland Herynek

Gudrun Menrad

Simon Schmittinger

Anja Melsheimer

Mirjam Steger

Manfred Pfitz

Detlef Heinrich

Kristina Eberle

Ferdinand Grob

Andreas Roth

Klaus Scherrbacher

Juergen Gerhardt

Bernd Roos

Franco Baiocchi

Christian K&ouml;hler

J&uuml;rgen Pantring

J&uuml;rgen Gerhardt

A fuel injector-spark plug combination includes a fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine and a spark plug with a spark-plug insulator, the spark plug having a first electrode, and a second electrode for igniting the fuel injected into the combustion chamber. The fuel injector and the spark-plug insulator of the spark plug are arranged at a biaxial offset in a respective receiving bore of a shared connecting member inserted in a recess of a cylinder head.

Fuel injection valve spark plug combination

A fuel injector-spark plug combination comprises a fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine and a spark plug with a spark-plug insulator, a first electrode and a second electrode for igniting the fuel injected into the combustion chamber. The fuel injector includes an actuator cooperating with an actuation device, which is in force-locking, operative connection to a valve needle, the valve needle, or a valve-closure member connected thereto, cooperating with a valve-seat surface to form a sealing seat. The valve needle of the fuel injector and the spark-plug insulator of the spark plug are positioned in a shared housing at a biaxial offset.

Combined fuel injection valve/ignition plug

A fuel injector-spark plug combination includes a fuel injector for the direct injection of fuel into a combustion chamber of an internal combustion engine, and a spark plug for igniting the fuel injected into the combustion chamber, and has a spark-plug insulator including a first electrode, and includes a second electrode. The fuel injector and the spark-plug insulator of the spark plug are each disposed in a recess of a cylinder head of the internal combustion engine. The fuel injector and the spark-plug insulator of the spark plug are fixedly held in place in a shared connecting member arranged outside of the cylinder head.

Fuel injector-spark plug combination

An internal combustion engine ( ), especially of a motor vehicle, is described. The engine ( ) is provided with a combustion chamber ( ) 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 ( ) is provided with a control apparatus ( ) for switching over between the operating modes. The engine ( ) includes an exhaust-gas recirculation having an exhaust-gas recirculation valve ( ). The engine ( ) is switched by the control apparatus ( ) into the first operating mode when the exhaust-gas recirculation valve ( ) is jammed in the open state.

Method for operating an internal combustion engine

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.

Method for determining the controller output for controlling fuel injection engines

An internal combustion engine ( ), especially for a motor vehicle, is described. The engine is provided with an injection valve ( ) with which fuel can be injected directly into a combustion chamber ( ) in a first operating mode during a compression phase or in a second mode of operation during an induction phase. A control apparatus ( ) is provided for switching over between the two modes of operation and for the different control (open loop and/or closed loop) in the two modes of operation of the operating variables, which influence the outputted torque of the engine ( ), in dependence upon a requested torque (mi). The fuel mass, which is to be injected in the first mode of operation, can be determined by the control apparatus ( ) in dependence upon the operating parameters of the engine ( ) which form the basis of the injections of the second operating mode.

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.

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.

An internal combustion engine ( ), especially for a motor vehicle, is described. The engine has 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 induction phase. A control apparatus ( ) is provided for switching over between the two modes of operation and for differently controlling (open loop and/or closed loop) the injection duration in the two modes of operation, the injection duration influencing the injected fuel mass. With the control apparatus ( ), the injection duration (ti) can be influenced by a function with the switchover from the first operating mode (VH) into the second operating mode (SH).

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.

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.

Method and arrangement for determining the torque of an internal combustion engine having direct gasoline injection

A method is provided for starting an internal combustion engine for a motor vehicle, and an internal combustion engine is provided which employs such method. The internal combustion engine includes a piston which can move in a cylinder and can execute an intake stroke, a compression stroke, a power stroke and an exhaust stroke. In addition, a control unit is provided with which fuel can be injected directly into a combustion chamber, which is delimited by the cylinder and the piston either during a compression stroke in a first operating mode or during an intake stroke in a second operating mode. The control unit is designed so that for starting, fuel can be injected in a first injection directly into the combustion chamber whose respective piston is in the power stroke.

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Heilbronn, Germany

Dieter Volz