Robert Boschgmbh

Torsten Baumann

Alex Grossmann

Torsten Bertram

Rolf Maier-Landgrebe

Ralf Buehrle

Oliver Krannich

Lutz Reuschenbach

Werner Mezger

Kurt Reutlinger

Johannes Meiwes

Thomas Klotzbuecher

Michael Drung

Manfred Kirschner

Harald Kazmierczak

Clemens Schmucker

Reiner Schweinfurth

Richard Schoettle

Michael Henne

Andreas Lassl

Bernd Tepass

Lothar Groesch

Klaus Bolenz

Burkhard Hiller

Mattias Hallor

Eberhard Klein

Zeynep Tosun

Sigrid Hafner

Alexandra Woerz

Torsten Keller

Bruno Zeyer

Arthur Pichlkostner

Sinan Yilman

Boris Koehler

Gebhard Schumacher

Carsten Wetzel

Robert Schmidt

Julia Schmidt

A method for controlling a high-pressure pump for the injection of fuel into a combustion engine, the high-pressure pump being connected to a camshaft of the combustion engine, wherein the high-pressure pump is controlled in a camshaft-synchronous manner by ascertaining an angular offset between the flank positions of a camshaft pulse-generating wheel and a predefinable point above the bottom dead center of a cam of the high-pressure pump on the camshaft.

Method and device for controlling a high-pressure fuel pump in an internal combustion engine

A method for determining a phase position of an adjustable camshaft of an internal combustion engine having a sensor wheel and a camshaft adjuster. The phase position of the camshaft is determined on the basis of phase flank interrupts triggered by the sensor wheel and a model which depends on at least one performance characteristic of the camshaft adjuster.

Method for determining a phase position of an adjustable camshaft

A method for determining a mixup in the terminals of a position encoder having a position encoder motor, which is bidirectionally drivable via a plurality of terminals, so that a mixup of at least two of the terminals of the position encoder motor leads to a reversal in the actuation direction of the position encoder, having the following steps of setting an actuating element of the position encoder to a zero setting, from which a motion of the actuating element is possible in one or two directions; driving the position encoder motor according to a diagnostic variable, which is selected so that, based on the actuation using the diagnostic variable, in the case of a non-mixup of the terminals and in the case of a mixup of the terminals, different absolute values of the changes are to be expected in the changes of the actuation position of the actuating element; recording a current change in the actuation position of the actuating element that comes about by the driving of the position encoder motor; establishing a mixup of at least two of the terminals, if the absolute value of the current change of the actuation position of the actuating element deviates from the absolute value of the change in the actuation position that is to be expected.

Method and device for diagnosing a position encoder

A method and a device are provided for operating an internal combustion engine, which make possible an improved characteristics curve correction of an actuator in an air supply of the internal combustion engine. In the process, an air mass flow supplied to the internal combustion engine is influenced via the actuator in an air supply. For the setting of an actuating position of the actuator having a specified, e.g., minimum, air mass flow, starting from a specified actuating position, the actuator is moved by an offset value of the actuating position. The offset value of the actuating position is corrected as a function of an offset value for the air mass flow.

Method and device for operating an internal combustion engine

A method and device for adapting a stop of an electrically triggered actuator are provided, which may be implemented in a precise and simple manner and allow for a continuous adaptation. For this purpose, a check is performed to determine whether a setpoint value for a position of the actuator to be set corresponds to a stop of the actuator. In this case, a characteristic variable of the trigger signal for triggering the actuator formed for implementing the setpoint value is compared with a predefined value. Depending on the result of the comparison, a position of the stop of the actuator is adapted.

Method and device for adapting a stop of an electrically triggered actuator

A method and a control unit for driving a control circuit () are suggested which make possible an improved distribution of the generated power loss. A component (), especially of a motor vehicle, is driven via at least two outputs () of the control circuit (). Each output () is connected pairwise to one of several potentials () via controllable switch means () and a drive voltage (UA) is formed for the component () from a difference between the potentials at the two outputs (). A pregiven clocked course of the drive voltage (UA) is adjusted by switching more than one of the controllable switch devices ().

Method and control unit for driving a control circuit

In a method for monitoring a camshaft adjustment of an internal combustion engine in which a setpoint value of an angular position is compared with an actual value of the angular position, a more differentiated fault diagnosis is achieved in that at least two fault types are able to be detected on the basis of the profile of the actual value over time.

Method for monitoring a camshaft adjustment of an internal combustion engine

An electronic circuit for detecting measured quantities has a sensor unit for generating an analog measurement signal and a signal detecting unit () with a first analog/digital converter for digitizing the analog measurement signal. Differences in the fluctuations of the supply voltages that are supplied to the sensor unit and the signal detecting unit essentially result in the generation of undesirable fluctuations in the measurement signal. To minimize these effects or compensate for them, the digitized measurement signal is corrected In response to a voltage signal (U) that represents the imprecision xof the first supply voltage (VS).

Electronic circuit for measured parameter recording

The invention is directed to a method and an arrangement for controlling the position of an actuating element () which prevent damage to the actuating element by a collision with at least one stop () and simultaneously ensure good dynamic characteristics. The position of the actuating element () tracks a desired value within a displacement range. The displacement range is limited for the actuating element () by at least one stop (). A check is made as to whether the distance between the desired value for the position of the actuating element () and the at least one stop () drops below a pregiven value (S). Only in this case is a change of the desired value limited.

Method and arrangement for controlling the position of an actuating element

In an internal combustion engine, combustion air is supplied to at least one combustion chamber via at least one intake duct. The intake duct includes at least two parallel control sections, to each of which one final controlling device is allocated. Using these final controlling devices, the flow cross-section of the particular control section may be influenced. At least two final controlling devices are activated based on one single setpoint variable, and, in fact, using only one control and/or regulating system associated with the intake duct.

Method for operating an internal combustion engine

A method and an apparatus for determining a torque (M) of an electrical machine (), in particular a generator () in a motor vehicle, are proposed. The method and the apparatus are characterized in that by a unit (), the torque (M) of the electrical machine () is ascertained as a function of a current electrical power (P) of the generator (), a current generator rpm (N), and a current generator efficiency ().

Method and device for determining a torque of an electrical machine

A method and an arrangement for determining an impact-free extremal set position of an actuating member () of an internal combustion engine () provides for an increase of the tolerances in the position of the actuating member and a reduction of the requirements on the mechanics of the actuating member and the read-back accuracy for the set position. In the extremal set position of the actuating member (), an actuating quantity, which is to be adjusted, has an extreme value. In an operating state of the internal combustion engine (), which is substantially independent of the set position, the actuating quantity is measured with the aid of a sensor () for various set positions in a range wherein the extreme value for the actuating quantity is suspected and that set position is determined as the extremal set position whereat the measured actuating quantity has an extreme value.

Method and arrangement for determining an impact-free extremal actuating position of an actuating member of an internal combustion engine

A method for turning various classes of loads on and off by means of switch elements in the context of energy management performed by a control unit, particularly in a motor vehicle, is described, in which the triggering of the switch elements is done such that the selected priorities for triggering the switch elements can be varied during operation, that is, dynamically. This enables an adaptation of the switching priorities during ongoing operation as a function of the operating state. The turn-off of loads is done by varying the switching priority in such a way that the perceptibility of the operating states is suppressed as much as possible, and the priorities can also be varied in accordance with person-specific criteria.

Method for switching consumer on or off

A method and a device are presented for power distribution in a motor vehicle having at least one battery and at least one generator. In this case a hierarchical control structure is used which has a higher-level component and a component on a lower level for the control of the at least one generator and the at least one battery. Between the higher-level and the lower-level components, specified interfaces with specified communication relations are provided. Communication relations are specified as instructions which are to be executed by the components to which they are addressed. Requests should be met by the components to which they are addressed, and queries are answered by the queried components. The power or voltage is set between the component of the at least one generator and the higher-level component as an instruction. The potential for power production of the generator is to be transmitted as a query, and the electrical power potential of the battery is to be transmitted between the component of the at least one battery and the higher-level component as a query.

Method and device for energy distribution in a motor vehicle

A method and/or a device for forming a robust and reliable deployment criterion for a restraint system in a motor vehicle is formed with the help of a fuzzy classifier which receives at least two input quantities. The first input quantity is an operating time which begins when the measured acceleration exceeds a predetermined threshold; and a second input quantity takes into account the change in vehicle speed determined from the measured acceleration.

Growing community of inventors

Eppingen-Adelshofen, Germany

Torsten Baumann