Continental Automotive Gmbh

Joachim Engelmann

Hui Li

Christian Hauser

Martin Brandt

Diego Valero-Bertrand

Jürgen Fritsch

Armin Stolz

Joao Graciano

Manfred Gaul

Gonzalo Medina-Sanchez

A method for adapting the actual injection quantity of an injector of an internal combustion engine to the target injection quantity, an injection device for an internal combustion engine, and an internal combustion engine are provided. In the method, the crankshaft acceleration achieved by a test injection pulse is detected in the rotational speed signal of the internal combustion engine and on this basis the injected fuel quantity of the injector is determined. On the basis of the determined injected fuel quantity, the actuating data of the injector of the internal combustion engine is corrected. To this end, the injected fuel quantity of the injector is detected and corrected by a test injection pulse during the normal fired operational state of the internal combustion engine.

Method for adapting the actual injection quantity, injection device and internal combustion engine

In a method and the corresponding apparatus for operating an internal combustion engine with a plurality of cylinders (Zto Z) which are assigned in each case one injection valve () for metering in fuel, a control apparatus () is provided with in each case one output stage () for actuating the injection valves () of the plurality of cylinders. Here, first of all work injection operations (Pto P) are determined for a cylinder (CYL_i) with the duration and positioning in relation to the crankshaft rotary angle. Following this, late injection operations (P), which are required in certain operating modes, for the preceding cylinder (CYL_i&#x2212;1) in the ignition sequence are arranged in a setpoint crankshaft angular range (SB) in such a way that no temporal overlaps occur between individual work and late injection operations.

Method and apparatus for operating an internal combustion engine

In a method for controlling fuel injection by means of injectors in a multicylinder internal combustion engine, the injectors are controlled sequentially according to control data for opening and closing in injection processes, wherein for each cylinder in an operating cycle a certain injection segment is defined, during which injection is possible. For the cylinders, a plurality of injection processes are performed per injection segment, the duration and temporal position for these injection processes are defined in the operating cycle, and in a conflict correction step a shift, or suppression, is performed of at least partially overlapping, and therefore conflicting, injection processes.

Device and method for controlling fuel injection

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Cham, Germany

Joachim Engelmann