Robert Boschgmbh

Klaus Walter

Rasmus Rettig

Karl Ott

Ruediger Block

Christelle Andriot

Joachim Strate

Helmut Denz

Andreas Arlt

Heinrich Steinruecken

Klemens Gintner

Frank Schatz

Matthias Kistner

Remigius Has

Holger Bellmann

Ralf Kinder

Janpeter Wolff

Denis Gugel

Mathias Kimmerle

Wilfried Burger

Peter Ziegler

Eduard Maiterth

Norbert Miller

Bernd Diebold

Klaus Boettcher

Martin Person

Juergen Wuerth

Joachim Heimes

Joerg Siedentopf

Johannes-Dieter Wichterich

Matthias Zeh

Aaron Troost

Reinhard Nopper

Frank Kohler

A method for functional testing of an electromechanical fill level monitoring device. In order to test the plausibility of a signal emitted by a fill level monitoring device of a first pressure medium chamber, a forced actuation of this fill level monitoring device is carried from time to time. This forced actuation is carried out in that a pressure medium delivery unit in a pressure medium circuit having the first pressure medium chamber is activated for a predefined period. This delivers the pressure medium fill level monitoring device into a second pressure medium chamber via a pressure medium connection. On the basis of the signal profile output by the fill level monitoring device, the proper operation of the fill level monitoring device is inferred in the electronic control unit.

Method for the functional testing of an electromechanical fill level monitoring device

A sensor arrangement for detecting a pedal movement in a vehicle includes a measurement value transmitter that is arranged on a piston that is translated by the pedal movement and a measurement value sensor that is arranged in a stationary manner in the movement region of the piston. The measurement value sensor in connection with the measurement value transmitter generates a signal that represents the pedal movement. The measurement value transmitter and the measurement value sensor are configured as inductive sensors. The measurement value transmitter has at least one detection region, and the measurement value sensor has at least one detection coil. The at least one detection region of the measurement value transmitter influences the inductance of the at least one detection coil such that the changing inductance of the at least one detection coil of the measurement value sensor is interpreted as a measure of the pedal movement.

Sensor arrangement for detecting a pedal movement in a vehicle

A sensor system includes: an at least partially magnetoelastic deformation element for measuring pressures, caused by a fluid, that are able to be applied to the magnetoelastic deformation element; and a magnetic circuit formed via a magnetic flux feedback and having a sensor unit and an evaluation unit. The sensor unit is positioned at the deformation element and the evaluation unit having an evaluation coil is structurally separated from, yet inductively coupled to, the sensor unit. The sensor unit has a sensor coil positioned on the deformation element and the evaluation unit has the evaluation coil that is inductively coupled to the sensor coil, the sensor coil forms a resonant circuit, using its own parasitic capacitance or using an additional capacitance, which is able to be energized by the evaluation coil in free resonance with strong or weak inductive coupling by a magnetic circuit enclosing the two coils.

Sensor system having a magnetoelastic deformation element

A method and system for making available an improved phase signal of a phase sensor on a camshaft of an internal combustion engine immediately after switching on the phase sensor and/or the internal combustion engine are provided. In this context, the phase sensor scans the angle marks of a signal-generating wheel that is connected to the camshaft in a torsionally fixed manner. In addition, a crankshaft sensor scans the angle marks of a signal-generating wheel that is connected to the crankshaft in a torsionally fixed manner.

Method and system for making available an improved phase signal of a phase sensor on a camshaft of an internal combustion engine

In a method for diagnosis of a sensor in a motor vehicle having an internal combustion engine, during operation of the motor vehicle, an output signal of the sensor is monitored for whether a maximum value of the output signal undershoots a first threshold value and/or a minimum value of the output signal overshoots a second threshold value. In that case a signal is forwarded to a controller that signals to the controller that the sensor, upon restarting of the motor vehicle, might be furnishing incorrect data.

Diagnostic method for a sensor

A method for detecting the motion of an element relative to a sensor apparatus is proposed, in which a detection of the direction of motion is performed. As a function of the direction of motion, a measurement signal is increased or decreased at predetermined measurement intervals, and only if a predetermined threshold value is exceeded is a direction-of-motion signal generated. Preferably, by means of a counting logic circuit (), a counter is increased by a binary amount In one direction () and the counter () is decreased by a binary amount in the respective other direction (). Upon a detection of measurement signals which as a result of being increased or decreased in a measurement interval do not lead to exceeding of the predetermined amount of the threshold value, vibration of the element is assumed.

Method and assembly for detecting the motion of an element

The invention proposes a method for detecting the motion of an element relative to a sensor device, in which signals (to) are evaluated as a function of a pulse generator () that is moved past the sensor (). The signals () of two sensor elements () disposed next to each other in the movement direction are detected, wherein in order to detect vibrations perpendicular to the movement direction, the phase responses of the signals () of the individual sensor elements () and of the differential signals () of the individual sensor elements () are evaluated as to whether all three signals are in phase.

Method and device for the detection of the movement of an element

A method for detecting the motion of an element relative to a sensor arrangement is proposed, wherein switching signals () are evaluated as a function of a pulse transmitter passing in front of the sensor, and a switching hysteresis (H) is adapted in the evaluation as a function of the values of the switching signal (). When the element moves below a predetermined limiting value (f), a relatively great switching hysteresis (Hyst) is set, and when the limiting value (f) is exceeded, a reduced switching hysteresis (H) is set.

Method and assembly for determining rational speed with variable switching hysteresis

A method for calibration of a sensoris characterized in that the sensoris arranged in a predetermined position, an equalizing unitis connected to the sensor, data necessary for calibration are determined, and the determined calibration data are stored permanently in a storage medium

Method for calibrating a sensor and switching arrangement for operating a sensor

The method for correction of evaluation of a switching threshold of a magnetic sensor arrangement includes evaluating switching edges of a transmitter signal produced by a moving transmitter element and generating a signal output when the switching edges exceed or fall below a default threshold value. Individual threshold values are determined for each switching edge during the course of a measurement cycle to correct the default threshold value. This occurs by determining respective maximum and minimum values for each switching edge and then averaging them to obtain an average value for each switching edge. Then the average values are stored in a non-volatile memory as individual threshold values for subsequent correction.

Method and arrangement for correction of evaluation of a switching threshold of a magnetic sensor

A method for evaluating the combustion chamber pressure in an internal combustion engine is described, in which the output signal of at least one cylinder pressure sensor and one crankshaft angle sensor is performed by the control unit of the engine. By analysis of the course of combustion chamber pressure over the crankshaft angle, characteristic pressure courses are obtained for certain valve control times. From these characteristic pressure courses, a conclusion can be drawn as to the valve control times &ldquo;outlet opens&rdquo;, &ldquo;outlet closes&rdquo;, &ldquo;inlet opens&rdquo;, and &ldquo;inlet closes&rdquo;, referred to the crankshaft angle.

Method for evaluating the march of pressure in a combustion chamber

An engine control unit for a vehicle control unit arrangement is preconfigured to perform a plurality of functions and configures its own range of functions by activating selected preconfigured functions as well as a method for the manipulation-proof configuration of the engine control unit. To activate a preconfigured function, the engine control unit issues a signal for detecting the presence of component control units connected to it. It then requests an item of information for activating a function preconfigured in the control unit from a component control unit that was detected. After receiving an item of activation information, it activates the corresponding preconfigured function.

Method for the manipulation-proof configuration of a vehicle control unit, and a control unit

Drive-away blocking device

The apparatus for controlling an internal combustion engine, especially a V-motor with a camshaft for each cylinder bank, includes a signal transmitter with a transmitter wheel having an angle mark extending over 180.degree. for each camshaft. A signal transmitter including a transmitter wheel having a plurality of angle marks and at least one reference mark is attached to the crankshaft of the internal combustion engine. The control device determines the operating configuration of the engine and/or performs a cylinder analysis from the produced transmitted signals. Also an emergency operation can be performed and a reverse rotation detected and, if necessary, a camshaft displacement can be determined.

Apparatus for control of an internal combustion engine, especially for

For detecting a backward revolution of a revolving component of an internal combustion engine, with a sensor which senses a revolving component having at least one angular mark, the backward revolution is assumed when a prescribable value between two pulses of the signal of the sensor is exceeded, and stalling is detected after it is ensured that the backward revolution of the internal combustion engine has taken place, and outputting of further injections and/or ignitions is suppressed until a resynchronization of the system takes place after a prescribable time has passed.

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Bietigheim-Bissingen, Germany

Klaus Walter