Robert Boschgmbh

Parker-hannifin Corporation

Markus Becker

Ulrich Vollmer

Michael Schumann

Michele Hirsch

Volker Niemz

Marcus Schneider

Philipp Schumann

Andy Tiefenbach

Karsten Muehlmann

Peter Braun

Florian Malchow

Meike Fehse

Raphael Cano

Philipp Lehner

Eckhard Bodenhausen

Peter Preissler

Steffen Eppler

Ariel Di Miro

Jan Egelhaaf

Gerd Schollenberger

Armin Jerger

Florian Tisch

Pascal Kanter

Vincent Schulte-Coerne

Michael Forscht

Horst Kirschner

Stephan Pauli

Jochen Staack

Julien Kuehl

Markus Mayer

Henning Von Zitzewitz

Emile Kruijswijk

Lutz Schuetze

Bayar Bayarsaikhan

Christian Hahn

Leo Vepa

Thomas Scheuerle

The invention relates to a method for determining a value profile of a controlled variable of an electrical system. Differences between predetermined values of an output variable at an end time and a determined value of the output variable at the end time are determined. A value profile of the controlled variable in the time interval is predetermined, the value profile being dependent on an end value at the end time and is being determined uniquely by the specification of the end value. Allowed values of the controlled variable are determined such that, when the electrical system is activated, the value of the output variable at the end time is equal to the determined difference. A curve of the allowed values of the controlled variable is determined on the basis of the allowed values of the controlled variable. A point of intersection of the determined curve and a predetermined derating function is determined. The value profile of the controlled variable within the time interval is determined as the value profile for which the end value of the value profile assumes the value of the controlled variable at the point of intersection.

Electrical system and method and apparatus for determining a value profile of a controlled variable

The invention relates to a method for operating an electric synchronous machine, having the steps of: &#x2014;generating centered pulse-width-modulated switching signals for switching elements (T. . . T) of half-bridges, wherein two switching elements (T. . . T) are connected to a respective half-bridge in each case; second switching elements (T. . . T) of each half-bridge are actuated in a complementary manner to the first switching elements (T. . . T) of each half-bridge if a sufficient minimum measurement duration (T) is thereby provided during which the switching signals of switching elements (T. . . T) of two half-bridges lie at different potentials; &#x2014;otherwise: &#x2014;generating pulse-width-modulated switching signals for the switching elements (T. . . T) of the half-bridges, said switching signals deviating from the center at least to such a degree that a sufficient minimum measurement duration (T) is provided, wherein &#x2014;the switching signals of the switching elements (T. . . T) are designed such that temporal changes corresponding to the minimum measurement duration (TM) in the switching signals of the switching elements (T. . . T) are prevented; and &#x2014;carrying out a 1-shunt current measurement within the provided minimum measurement duration T).

Method for operating an electric synchronous machine

The invention relates to a control device for a voltage transformer of an electrically operated vehicle, which voltage transformer feeds an n-phase electric machine, n&#x3e;1. The control device comprises an observer unit, which is designed to determine a present rotational speed of the electric machine and a present output current of the voltage transformer, a computing unit, which is coupled to the observer unit and which is designed to compute an instantaneous wheel speed of the wheels of the vehicle in dependence on the determined present rotational speed, and a slip control unit, which is coupled to the computing unit and which is designed to at least temporarily apply a current correction amount to the output current of the voltage transformer if the present change of the wheel speed of the wheels exceeds a first predetermined threshold value.

Control device and method for traction control for an electric drive system

The present invention relates to an inductive energy transfer system and a method for the diagnosis of a foreign object detection of an inductive energy transfer system. For this purpose, a defined fault is introduced into the region to-be-monitored between primary coil and secondary coil of the inductive energy transfer system, and the response of the foreign object detection to said defined fault is then evaluated.

Energy transfer system and method for the diagnosis of an energy transfer system

The invention relates to an electric motor (), in particular a fan motor, comprising a device () for generating a sequence () of signals that comprises a plurality of especially blocks () of signals. The blocks () of signals comprise a plurality of signals () having a specific signal duration (). According to the invention, the signal duration () of the individual signals () varies.

Electric motor comprising a device for generating a sequence of signals

The invention relates to a method and to a device, in particular a control and evaluation unit, for recognizing a water passage or a high water level for a vehicle, which has, as a drive, an internal combustion engine having an exhaust train, in which the functionality of an emission control system is monitored or controlled by at least one exhaust sensor and the exhaust sensor is operated at least intermittently at high temperatures and has thermal shock susceptibility by design. According to the invention, a water recognition criterion is determined based on one or a plurality of distance sensors and, at critical values of the water level which are predicted or have already been reached, protective measures are initiated for the emissions control system of the vehicle or for the exhaust sensor or exhaust sensors arranged in the exhaust duct. Damage to exhaust sensors or to components of the emissions control system as a result of the severe cooling upon contact with water can thus be minimized. In addition, misinformation of the exhaust sensors due to a thermal shock and a possible accompanying malfunction can also be recognized by said anticipatory protective measures and correspondingly suppressed.

Method and device for recognizing a water passage by means of distance sensors

In a method for assisting a driver of a motor vehicle during a driving maneuver, the surroundings of the motor vehicle are initially detected, at least one suitable trajectory for carrying out the driving maneuver is computed based on the detected surroundings, and the motor vehicle is automatically steered in order to carry out the driving maneuver. If there is a malfunction, the driver is informed, the automatic steering operation is terminated, and the driver receives information on the basis of which the driver may continue the driving maneuver.

Method for assisting a driver of a motor vehicle

A method for transferring data from an image-data-based map service for use in an assistance system of a vehicle includes the following: ascertaining the position and/or orientation of the vehicle, retrieving image data of the vehicle surroundings from the image-data-based map service, extracting items of information from the image data of the map service, and transferring the items of information into the assistance system.

Transfer of data from image-data-based map services into an assistance system

A method for diagnosing an internal combustion engine in a motor vehicle having at least one sensor unit, including at least one sound receiver, the sound receiver converting sound waves into an electrical signal. Sound waves of the internal combustion engine are recorded using the sound receiver of the sensor unit and converted into an electrical signal, and the electrical signal is used for the diagnosis of the operating state of the internal combustion engine.

Method for diagnosing an internal combustion engine in a motor vehicle

A fuel injection valve for a fuel injection system of an internal combustion engine includes a valve housing which is sealed off from an intake tube of an engine by a seal having a bead and a funnel-shaped cuff embodied on the bead, the projecting edge of which cuff is turned-under radially inward.

Fuel injection valve

Growing community of inventors

Tamm, Germany

Markus Becker