Robert Boschgmbh

Holger Rapp

Wolfgang Stoecklein

Klaus Joos

Haris Hamedovic

Joerg Koenig

Ruben Schlueter

Helerson Kemmer

Siegfried Ruthardt

Bernd Berghaenel

Nestor Rodriguez-Amaya

Martin Braun

Bernd Wichert

Werner Hess

Friedrich Boecking

Udo Schulz

Hans-Christoph Magel

Wolfgang Fischer

Marco Beier

Achim Hirchenhein

Anh-Tuan Hoang

Thomas Pauer

Harry Friedmann

Andreas Koch

Andreas Kellner

Juergen Hanneke

Markus Rueckle

Andreas Rettich

Rudolf Heinz

Rainer Haeberer

Patrick Mattes

Erik Weissenborn

Andreas Wengert

Nadja Eisenmenger

Thomas Kuegler

Udo Schaich

Andreas Dutt

Dieter Junger

Stefan Stein

Traugott Degler

Werner Teschner

Michael Mennicken

Stefan Haug

Bernd Streicher

Stefan Schuerg

Wilhelm Christ

Helmut Clauss

Andreas Rau

Christian Langenbach

Friedrich Howey

Helmut Sommariva

Andreas Gruenberger

Jens Neuberg

Wolfgang Fleiner

Thomas Schwarz

Markus Erhardt

Stefan Kolb

Ralph Kober

Fabian Fischer

Martin Katz

Florian Schmid

Gerhard Mack

Silke Seuling

Christian Reschke

Tobias Landenberger

Francesco Lucarelli

Stephanie Wirth

Hans-Peter Lehr

Marco Holst

Thomas Becker

Christian Kuhnert

Andreas Bartsch

Albano De Paoli

Oezguer Tuerker

Hans Brekle

Andreas Schmitt

Kasim-Melih Hamutcu

Christoffer Uhr

Matthias Schnell

Stefan Kurz

Christian Grimminger

Egbert Fuchs

Manfred Fink

Daniel Heitz

Ralf Heinecke

Steffen Holm

Lars Engelfried

Reinhold Melcher

Hanna Zimmer

Thomas Gann

Christian Szonn

Heike Lang

Changyi Wang

Frank Schmitt

Violaine Chassagnoux

Dietmar Zeh

Achim Deistler

Andreas Fath

Gernot Repphun

Peter Landgraf

Christian Faltin

The present invention provides control of a synchronous machine with non-sinusoidal current-voltage profiles. The synchronous machine is controlled in a field-oriented coordinate system. In this case, the transformation between field-oriented coordinate system and stator-oriented coordinate system is effected by specific, adapted transformations which take account of the non-sinusoidal signal profiles during the driving of the synchronous machine, such that the latter correspond to current-voltage profiles progressing in a constant fashion in the field-oriented coordinate system. What is achieved thereby is that the non-sinusoidal current-voltage profiles need not be taken into account in any way in the design of the control system in the field-oriented coordinate system.

Method for controlling a synchronous machine and control device for a synchronous machine

The present invention provides control for synchronous machines in order to achieve an approximately constant torque irrespective of the load angle. The induced voltage of the synchronous machine rotating with a zero-current of the stator is first determined. Starting from the voltage plot of the induced voltage over the load angle, a current plot which achieves a constant torque irrespective of the load angle or any other default settings, can then be calculated. In particular, a non-sinusoidal current plot can also be calculated for non-sinusoidal plots of the induced voltage in the synchronous machine, in order to achieve desired settings that are as constant as possible irrespective of the load angle of the synchronous machine.

An energy storage device and a DC voltage supply circuit. The energy storage device has at least two energy supply branches connected in parallel. Each of the energy supply branches has a multiplicity of energy storage modules having an energy storage cell module with at least one energy storage cell and a coupling device. The coupling device switches the energy storage cell module selectively into the corresponding energy supply branch or bypasses said energy storage cell module in the energy supply branch. The DC voltage supply circuit has a bridge circuit switchably connected to a first or a second of feed nodes coupled to output connections of the energy storage device.

Energy storage device comprising a DC voltage supply circuit and method for providing a DC voltage from an energy storage device

A method for regulating a common rail injector, the method including acquiring a signal of a sensor, which signal is proportional to a pressure in a valve space of the common rail injector; evaluating a change in the signal over time in order to detect at least one operating event of the common rail injector; and modifying at least one operating variable of the common rail injector as a function of the at least one operating event, the at least one operating variable being selected from an opening duration, a closing duration, an opening point in time, and a closing point in time of a switching valve of the common rail injector, and from an opening duration, an opening point in time, and a closing point in time of a needle valve of the common rail injector.

Method for regulating a common-rail injector

A method for predefining a current through a solenoid coil of a solenoid valve, a closing point in time of the solenoid valve being detected with the aid of a sensor, a sensor value being monitored, and, when a premature closing of the solenoid valve is identified based on the monitored sensor value, the current through the solenoid coil of the solenoid valve is increased.

Method for predefining a current in a solenoid valve

The invention relates to a system having an energy storage device and a DC voltage supply circuit, wherein the energy storage device has at least two energy supply branches, which are each coupled at a first output to at least one respective output terminal of the energy storage device in order to generate an AC voltage at the output terminals, and at a second output to a shared bus, wherein each of the energy supply branches has a plurality of energy storage modules connected in series. The energy storage modules each comprise an energy storage cell module having at least one energy storage cell and a coupling device having a coupling bridge circuit made from coupling elements. The coupling elements are designed to selectively connect the energy storage cell module to the respective energy supply branch or to bypass the energy supply branch. The DC voltage supply circuit has: a bridge circuit having a plurality of first feed terminals, each of which is coupled to one of the output terminals of the energy storage device; two feeding nodes, at least one of which is coupled to the bridge circuit; and a module-tapping circuit that has at least one module switching branch having a commutating diode. Each of the at least one module switching branches connects a coupling node between two energy storage modules of one of the energy supply branches switchably to a feeding node.

Energy storage device having a DC voltage supply circuit and method for providing a DC voltage from an energy storage device

In a method for adapting at least one injector of an injection system, in particular of a common-rail injection system of an internal combustion engine of a motor vehicle, where injections take place based on a characteristics map with at least two input variables and at least one output variable, a transition is carried out into a learning mode in which only discrete values are permitted for one of the at least two input variables of the characteristics map.

Method for adapting a common-rail injection system of an internal combustion engine

A method is described for operating at least one magnetic switching element, at least one first connection of at least one sensor device being connected to at least one connection of a coil of the magnetic switching element, and the first connection or an additional connection of the sensor device being connected to a reference potential, and a measuring state being established in which at least one connection of the coil is essentially at least temporarily decoupled from the reference potential and/or from a source activating the coil, and at least one signal of at least one sensor of the sensor device being ascertained in the measuring state from at least one electrical potential at at least one connection of the coil.

Method for operating a switching element

In a method for operating a magnetic switching element, at least one connection of at least one sensor device is connected to at least one connection of a coil of the magnetic switching element, and at least one measuring state is established in which the at least one connection of the coil is largely at least temporarily decoupled from a ground, a voltage source, and/or a current source activating the coil, and at least one auxiliary voltage and/or at least one auxiliary current is/are applied to the at least one connection of the coil in the measuring state, and at least one sensor signal is ascertained from at least one electrical potential, at least one potential difference, and/or at least one current flowing at the connections of the coil.

Method for operating a magnetic switching element

A method for operating an internal combustion engine having two or more cylinders to which fuel can be supplied via an injection valve, it being possible to carry out a measurement injection for a cylinder in order to determine and/or adapt a characteristic quantity of the injection valve, and all the cylinders being ignited in the course of an ignition cycle. To improve the operating characteristics, a measurement injection is carried out for those cylinders that are contained in a specifiable selected set selected from all the cylinders.

Method for operating an internal combustion engine

A method for assessing an injection behavior of at least one injection valve of an internal combustion engine includes putting the internal combustion engine into a special operating mode defined by control parameters and operating the engine in the special operating mode during a diagnostic time period, at least one operating parameter of the internal combustion engine being determined at least during the diagnostic time period, and at least one quantity characterizing the injection behavior of the at least one injection valve being evaluated at least during a segment of the diagnostic time period and being evaluated on the basis of the at least one operating parameter.

Method for assessing an injection behaviour of at least one injection valve in an internal combustion engine and operating method for an internal combustion engine

The invention relates to a method for controlling an energy storage device that comprises n output connections, wherein n&#x2267;2, for producing a supply voltage at each of the output connections, and n energy supply branches, which are each coupled to one of the output connections, wherein each of the energy supply branches comprises a plurality of series-connected energy storage modules that each comprise an energy storage cell module comprising at least one energy storage cell, and a coupling device having coupling elements in a full bridge circuit that is designed to connect or bridge the energy storage cell module selectively in the respective energy supply branch. The method according to the invention comprises the following steps: for a number k of energy storage modules of at least one first energy supply branch, generating a first pulse width modulated control signal for controlling the coupling devices of the respective energy storage modules by comparing a first target value signal with a number 2k first periodic reference signals having a pulse period T, which signals each have a phase shift of T/2k relative to the adjacent first reference signals; and, for a number k of energy storage modules of at least one second energy supply branch, generating a second pulse width modulated control signal for controlling the coupling devices of the respective energy storage modules by comparing a second target value signal with a number 2k of second periodic reference signals having the pulse period T, which each have a phase shift of T/2k relative to the adjacent second reference signals. The second reference signals each have a phase shift of T/4k relative to the first reference signals.

System and method for controlling an energy storage device

The invention relates to a control chamber, the pressure of which determines the strokes or positions of a nozzle needle, and which is assigned to a force or pressure sensor in order to detect the progression of the control chamber pressure. Because the control chamber pressure significantly changes during the closing of the nozzle needle, the operating phases of the injector can be exactly determined from the sensor data and supplied to an engine controller.

Fuel injector

In a method for operating a valve, e.g., a fuel injector of an internal combustion engine in a motor vehicle which is activated with the aid of an actuator, the actuator is activated using a control variable which has a predetermined control period. The control period is formed as a function of a setpoint value for a closing delay time of the valve which characterizes a time difference between an end of the control period and a closing point in time of the valve.

Method and control unit for operating a valve

A method for activating an injector in a fuel injection system in an internal combustion engine, the fuel injection system including a plurality of injectors and a quantity of fuel injected with the aid of an injector being a function of the activation period of the injector. An injector-individual correction value for the activation period is ascertained for at least one injector as a function of a pressure and a temperature of the fuel to be injected and the activation for this injector takes place under consideration of the injector-individual correction value.

Method for activating an injector in a fuel injection system in an internal combustion engine

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Ditzingen, Germany

Holger Rapp