Robert Boschgmbh

Andy Tiefenbach

Eberhard Schnaibel

Bernd Schumann

Joerg Heyse

Martin Kessler

Klaus Winkler

Henrik Schittenhelm

Enno Baars

Uwe Glanz

Volker Doege

Mathias Klenk

Michael Bessen

Alexander Schmidt

Benjamin Gaertner

Berndt Cramer

Markus Becker

Thorsten Ochs

Helge Schichlein

Ariel Di Miro

Thomas Proepper

Christopher Holzknecht

Radoslav Rusanov

Andreas Gleiter

Karola Herweg

Frank Freikamp

Thomas Schniedertoens

Simon Genter

Sebastian Fuchs

Daniel Manka

A sensor for detecting particles, in particular, soot particles, is described. The sensor includes a sensor element having at least two measuring electrodes, which are situated on a carrier substrate, and a protective tube assembly having at least one outer protective tube and one inner protective tube. The sensor element is situated in the inner protective tube in a longitudinal extension direction. The outer protective tube and the inner protective tube are designed to permit the particles to access the sensor element in a direction deviating from the longitudinal extension direction.

Sensor for detecting particles

A device for determining a concentration of particles in a gas flow, e.g., soot particles in exhaust gas of an internal combustion engine, includes a carrier and a sensor, which is situated on a surface of the carrier and can be exposed to the gas flow, the sensor including an electrode structure including at least two measuring electrodes that are of different polarity and that are formed as an interdigital comb structure including finger electrodes. In first areas of the interdigital comb structure, the finger electrodes have a first mutual distance in relation to each other, and in second areas of the interdigital comb structure, the finger electrodes have a second smaller mutual distance in relation to each other, the first areas and the second areas in the interdigital comb structure each at least partially adjoining each other alternately, occupying respective surface areas on the sensor.

Sensor for determining a concentration of particles in a gas flow

A method for determining soot in exhaust gases of burners or internal combustion engines with the aid of a sensor element which includes at least two measuring electrodes exposed to the exhaust gas and one heating element, a voltage being applied to the at least two measuring electrodes during a measuring phase and the current flow or electrical resistance occurring between the measuring electrodes being determined and output as a measure for the particle concentration or the particle mass flow, characterized in that during the measuring phase, the temperature of the sensor element is monitored and the sensor element is heated by the heating element, if the temperature of the sensor element falls below a limiting temperature.

Method for operating a particle sensor

A method is provided for controlling the function of a sensor for detecting particles, in particular soot particles, the sensor including at least two measuring electrodes and a substrate on which the measuring electrodes are situated. The method includes the following: carrying out a first current-voltage measurement for ascertaining a first measured variable; carrying out a second current-voltage measurement for ascertaining a second measured variable, one measuring electrode of the measuring electrodes being applied to another electrical potential; carrying out a third current-voltage measurement for ascertaining a third measured variable; an configured forming a correction value for correcting the second measured variable with the aid of the first measured variable and the third measured variable.

Method for controlling the function of a sensor for detecting particles

The invention relates to a particle sensor () for determining a particle content in a gas flow, wherein the particle sensor () has, on the surface thereof, at least two interlocking interdigital IDE electrodes () and a heating element (), separated from the IDE electrodes () by an insulating layer (), by means of which heating element the particle sensor () can be heated in a regeneration phase and a soot load on the particle sensor can thus be removed, and by means of which particle sensor, in a diagnostic phase during the regeneration phase, a current is measured by intermittently applying a measurement voltage to the IDE electrodes () and, based on the chronological progression and size thereof, a functional inspection of the particle sensor () is carried out. During the regeneration phase, additional operating phases are introduced, in which, outside of the diagnostic phase (), ions are specifically moved by intermittently applying specific voltage potentials different from zero volts to the IDE electrodes ().

Method and device for operating a particle sensor

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

The invention provides an electrical energy storage module (), comprising: at least one storage cell stack (), comprising: a plurality of energy storage cells (), which each have a cell housing () each having two pole connections (), wherein the energy storage cells () are arranged in series in the storage cell stack () in such a way that in each case a first pole connection () and a second pole connection () having different polarities of two adjacent energy storage cells () are galvanically connected to one another by means of flat cell connecting elements (), wherein the cell housings () of all of the energy storage cells () are galvanically connected to one another, wherein the first pole connection () of an energy storage cell () arranged at a first end of the storage cell stack () is galvanically connected to the cell housing (), and wherein the second pole connection () of an energy storage cell () arranged at a second end of the storage cell stack () and the cell housings () each have a flat return conductor ().

Electrical energy storage module and method for producing an electrical energy storage module

The invention relates to an electrical energy storage module, comprising at least one storage cell stack () that has a plurality of groups of first planar parallel energy storage cells (), each having first electrode elements (), and a plurality of groups of second planar parallel energy storage cells () arranged planar parallel to the group of first energy storage cells (), said second groups each having second electrode elements (). The groups of first and second energy storage cells () are arranged alternately along a first direction of extension of the storage cell stack () and the first electrode elements () have a polarity on a side face of the storage cell stack () that is different from the second electrode elements () on the side face of the storage cell stack (). The energy storage module further comprises a plurality of flat contact elements () that are arranged on the side faces of the storage cell stack (), galvanically connect adjacent groups of first and second energy storage cells (), and contact substantially all first or second electrode elements () of the adjacent groups of first and second energy storage cells () across the width of the storage cell stack () in each case.

A battery cell (), having a low-inductance, capacitive parallel path interconnected between the poles of the battery cell (), wherein the parallel path is embodied as a discrete capacitor ().

Battery cell

The invention relates to a battery system (), comprising a battery module (), which comprises a first high-voltage connection (), a second high-voltage connection () and a multiplicity of battery cell modules () which are connected in series between the first and second high-voltage connections, and a switching matrix (). The switching matrix comprises a large number of switching rails (), which are each connected to one of the nodes between in each case two of the battery cell modules which are connected in series, a multiplicity of first switching devices (), which are designed to connect in each case one of the switching rails () to a first low-voltage connection () of the switching matrix (), and a multiplicity of second switching devices (), which are designed to connect in each case one of the switching rails () to a second low-voltage connection () of the switching matrix. In this case, a first total voltage (HV) of all of the battery cell modules () which are connected in series is present between the first high-voltage connection () and the second high-voltage connection (), and a second total voltage (LV) of some of the battery cell modules () which are connected in series is present between the first low-voltage connection () and the second low-voltage connection (), depending on the switching state of the first switching devices () and the second switching devices ().

Battery system and method for providing an intermediate voltage

An energy storage device. An energy supply branch, with a plurality of energy storage modules is connected in series via first module connections along a first energy supply line and via second module connections along a second energy supply line. The energy storage modules include an energy storage cell module having an energy storage cell, a first coupling device having first coupling elements, configured to switch or bypass the energy storage cell module selectively between the first module connections, and a second coupling device having second coupling elements, which are designed to switch or bypass the energy storage cell module selectively between the second module connections. The energy storage device also includes an output connection coupled to an output of the first energy supply line; and two additional connections coupled to the outputs of the second energy supply line.

Energy storage device, system with energy storage device and method for driving an energy storage device

A device for operating a gas sensor having both at least one pump cell and a measuring cell is provided. A constant current source is provided that makes available a pump current which acts upon an outer electrode of the pump cell. The constant current source provides at least two different amounts of the pump current and/or allows for an alternating operation having ON phases and OFF phases, the duration of the ON phases/OFF phases being specifiable. The device may be largely implemented in digital circuitry and adapted to different requirements.

Growing community of inventors

Vaihingen-Horrheim, Germany

Andy Tiefenbach