Robert Boschgmbh

Ruediger Weiss

Gerd Grass

Klaus Joos

Karsten Kroepke

Jens Wolber

Markus Amler

Hansjoerg Bochum

Helmut Denz

Thomas Frenz

Werner Mezger

Jochen Laubender

Norbert Mueller

Peter Schenk

Juergen Pantring

Helmut Rembold

Georg Mallebrein

Ernst Wild

Martin Streib

Udo Hafner

Wolfgang Fischer

Werner Hess

Lutz Reuschenbach

Winfried Moser

Udo Diehl

Stefan Reimer

Karsten Mischker

Volker Beuche

Bernd Rosenau

Karl Gmelin

Christian Grosse

Juergen Raimann

Hermann Gaessler

Juergen Schiemann

Rainer Walter

Andreas Roth

Mario Kustosch

Guido Porten

Andreas Schmidt

Karl Ott

Haris Hamedovic

Uwe Mueller

Matthias Philipp

Timm Hollmann

Michael Drung

Andreas Baumann

Kersten Wehmeier

Stefan Cerny

Manfred Dietrich

Elias Calva

Edmund Schaut

Jean-Marc Tonye Djon

Ralf Daeubel

Detlef Heinrich

Armin Hassdenteufel

Harry Friedmann

Thomas Schuster

Karl-Bernhard Lederle

Achim Guenther

Pierre-Yves Crepin

Christof Thiel

Matthias Walz

Laurent Nack

Michael Nicolaou

Guido Bredenfeld

David Gaenzle

Karsten Hinn

Juergen Ulm

Martin Ludwig

Bernd Roos

Karthik Rai

Bernd Herrmann

Silke Seuling

Volkmar Goldschmitt

Kai Sutter

Helmut Zell

Peter Klee

Michael Wilhelm

Emilie Hincker-Piocelle

Armin Huber

Erkan Danisman

Oliver Heyna

Dietmar Schwuchow

Martin Schlemmer

Lilian Kaiser

Elmar Pietsch

Sebastian Birk

Marc Laetzel

Guenter Rosenzopf

Stephan Rosenberg

Tobias Leutwein

Markus Stahl

Andreas Leinberger

Christoph Kessler

Andreas Klaiber

Heinz Martin

Dieter Haecker

In a method for detecting a running internal combustion engine in a hybrid vehicle, the internal combustion engine, as a first drive unit, and a second drive unit contribute toward driving the hybrid vehicle. To determine reliably whether the internal combustion engine is running during hybrid operation, an interference signal is actively introduced into the ongoing operating sequence of the internal combustion engine, and the response of the internal combustion engine to this interference signal is evaluated. If there is no response of the internal combustion engine, it is concluded that the internal combustion engine is not operating.

Method and device for detecting a running internal combustion engine in a hybrid vehicle

The invention relates to a method for restarting an internal combustion engine, in which a first cylinder (ZYL) has a low air level and a second cylinder (ZYL) has a high air level, and wherein a predefined speed threshold value (ns) is selected as a function of said air levels. A method for the restart is selected and carried out as a function of a comparison of the determined speed (n) of the internal combustion engine with the predefined speed threshold value (ns).

Method and device for controlling an internal combustion engine

A method for operating an internal combustion engine in which a speed-based feature of the internal combustion engine, which is correlated with an indicated mean effective pressure of the fuel, is determined during the warm-up of the internal combustion engine and an ideal fuel quantity, which is to be injected into at least one combustion chamber of the internal combustion engine during the warm-up, is ascertained therefrom.

Method for operating an internal combustion engine

In a method for starting an internal combustion engine () having multiple combustion chambers (), wherein said internal combustion engine () has a starting system () and is operated using a start-stop function, and wherein said starting system () is actuated after a stop phase in operation of said internal combustion engine () to restart said internal combustion engine (), a combustion chamber () to be ignited first of the multiple combustion chambers () is determined upon a restart of the internal combustion engine (), and after a first ignition of the combustion chamber () to be ignited first, speed data for the internal combustion engine () are detected, and a starter release of the starting system () is caused if the detected speed data meet a predetermined starter release criterion.

Method for starting an internal combustion engine with start-stop function

A method for starting an internal combustion engine, in which a control unit starts at least one function at a specific crankshaft angle, the function being shifted from the start of the internal combustion engine until a final condition is reached by a relative angle to a later crankshaft angle.

Method for starting an internal combustion engine

A method for operating a hybrid drive of a vehicle, having an internal combustion engine and having at least one electric drive, to which at least one traction battery is assigned, as well as to a hybrid drive, especially a parallel hybrid drive. The internal combustion engine is able to be started from the operating mode 'purely electrical driving' of the hybrid drive using a direct start without a starter.

Hybrid drive having a separating clutch which assists a direct start

In an internal combustion engine, fuel is directly injected into at least one combustion chamber at least during a compression stroke in such a way that a stratified mixture is present in the combustion chamber. This mixture is then externally ignited. The fuel is introduced during the compression stroke by at least one main injection and an ignition injection, the ignition injection taking place immediately before an ignition and producing at least essentially no torque.

The invention deals with a method for the operation of an internal combustion engine with at least two cylinders, which can be operated with a fuel of variable quality stored in a tank and/or with fuel blends stored in the tank from a first and at least a second fuel in variable mixing ratios, and wherein variable fuel qualities and/or fuel blends of different compositions require variable air/fuel ratios for the achievement of a stable combustion and/or have a variable vaporization behavior. Provision is, thereby, made for a variation, which is individually adjusted to each cylinder, of the quantity of fuel delivered to the cylinder to be implemented to supply a lean and/or to a rich air/fuel mixture at least one cylinder, for the effect of the variation on the starting characteristics and/or the running smoothness of the cylinder and/or the internal combustion engine to be evaluated and when an improvement in the starting characteristics and/or the running smoothness is achieved, for a fuel adaptation to be implemented for all cylinders. The method makes the quick detection and the avoidance of starting problems possible, when a change in the fuel quality or in the fuel composition occurs with an effect on the ignitability of the fuel.

Method for the operation of an internal combustion engine

The invention relates to a procedure to heat up or keep warm an exhaust gas emission control assembly of a vehicle with a drive train containing one transmission. The drive train is powered by an internal combustion engine and at least one second drive unit. It is proposed that also in an operating state, which lies outside of the idle speed, a rotational speed or a torque of the internal combustion engine deviating from values for the engine rotational speed and the torque is set, which would exist during an identical driving condition without the heating-up or keeping warm of the exhaust gas emission control assembly.

Procedure for heating-up and keeping warm an emission control assembly of a motor vehicle

A method for starting an internal combustion engine that is operated with a fuel mixture made of at least two types of fuel. An injection of the fuel into combustion chambers of the internal combustion engine occurs starting at a predefined pressure threshold of the fuel in a fuel supply according to a high-pressure starting mode, and also according to a low-pressure starting mode if the predefined pressure threshold is no longer met. The pressure threshold is selected as a function of the mixture ratio of the fuel types in the fuel mixture. In this way it can be achieved that differences can be taken into consideration in the optimal mixture formation of the fuel types.

Method for fuel injection

In a method for operating a direct-injection internal combustion engine, a position of at least one piston inside a cylinder in which the combustion engine is at a standstill is determined; and a starting cylinder into which fuel is injected first is selected for a start following the standstill. An instantaneous charge of the starting cylinder is determined as a function of a duration of the standstill of the combustion engine. A distance (d) between the piston of the starting cylinder and a specified position of the piston is calculated. A minimum distance of the piston of the selected cylinder is determined as a function of the instantaneous charge; and another cylinder is selected as starting cylinder if the distance (d) between the piston of the starting cylinder and the specified position is less than the minimum distance.

Method for operating an internal combustion engine, and control or regulating device for an internal combustion engine

A method for controlling the opening of at least one intake valve of a combustion chamber in a periodically working piston engine, at least one intake valve of the combustion chamber being opened during a first partial period of a working period of the piston engine for charging the combustion chamber; and at least one intake valve of the combustion chamber being opened during a second partial period of the working period, wherein the second partial period begins after the combustion of the combustion chamber charge and has no overlap with the first partial period.

Method and device for controlling the opening of an intake valve of an internal combustion engine

A method for operating a fuel-supply system for an internal combustion engine of a motor vehicle is provided, the fuel-supply system having a fuel-storage tank, a fuel pump and a pressure sensor, the fuel pump supplying fuel from the fuel-storage tank to a pressure region, the pressure sensor being arranged in the pressure region, and the pressure sensor generating a signal representing the pressure in the pressure region.

Method for operating a fuel supply system for an internal combustion engine in a motor vehicle

A first method is for determining a variable, which characterizes a fuel injection, in an internal combustion engine of a motor vehicle in a hot-start situation wherein fuel is injected directly into at least one combustion chamber from a high-pressure region of a fuel supply system; the variable, which characterizes the injection quantity, is corrected at least in dependence upon a variable which represents a temperature of the fuel. A second method is for determining a hot-start situation in an internal combustion engine of a motor vehicle wherein a hot-start situation is determined at least based on a variable, which represents a temperature of the fuel, and based on a fuel pressure. The invention relates likewise to corresponding arrangements, a corresponding control apparatus for an internal combustion engine, a corresponding computer program having program-code means and a corresponding computer program product having program-code means.

Methods and device for controlling an internal combustion engine

An internal combustion engine controller includes a main processor for monitoring operating parameters of an internal combustion engine and a triggering device, working together with the main processor, for an electric fuel pump of the internal combustion engine. The triggering device works together with an electric activation device and operates so that the fuel pump is triggered essentially without time delay after actuation of the activation device. The internal combustion engine controller has an electronic switching device which operates so that, during an initialization process of the main processor, it triggers the electric fuel pump independently of the main processor.

Internal combustion engine controller and method for the operation of an internal combustion engine controller

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Moetzingen, Germany

Ruediger Weiss