Robert Boschgmbh

Bernd Maihoefer

Botho Ziegenbein

Lothar Gademann

Gerald Hopf

Franz Schmich

Bernhard Mattes

Werner Nitschke

Erich Zabler

Uwe Kassner

Ralf Henne

Ulrich Goebel

Dietrich Bergfried

Thomas Walker

Peter Schaedler

Andreas Meier

Albert-Andreas Hoebel

Ulrich Kippelt

Klaus Meder

Reinhold Danner

Ulrich Speh

Frank Kursawe

Roland Feucht

Herbert Boehm

Gunther Lieb

Alexandra Leonhard

Mark Leverkoehne

An electronic device includes a resonant circuit and an evaluation circuit. The resonant circuit includes an acceleration-sensitive sensor which is excited to vibrate during a testing phase of the acceleration-sensitive sensor. The evaluation circuit is coupled to the resonant circuit to determine a performance reliability of the acceleration-sensitive sensor.

Electronic device having an acceleration-sensitive sensor

A metal support element having electronic components or circuit supports, in particular hybrid circuits, the connections of which are guided through from the component side, via a plurality of connector pins melted into glass passthroughs, to the opposite side of the support element. The connector pins are glass-mounted into pin blocks produced independently of the support element. The pin blocks are inserted into associated cutouts of the support element and fastened therein. The arrangement and number of the connector pins in the pin blocks can thereby be flexibly adapted to particular requirements with no need for modifications to the design of the support element. The material and the geometrical properties of the pin blocks can be optimally adapted to the glass-mounting process of the connector pins, while the material of the support element can be matched to the coefficient of thermal expansion of the attached circuit support.

Metal support element for electronic components or circuit supports

Acceleration sensor

A system for influencing the travel dynamics of an automobile includes at least two sensor units (S1, S2, S3) for capturing the movements of the vehicle. First evaluation units (A1) evaluate the signals of the sensor units, these first evaluation units being spatially combined with the aforementioned sensor units to a sensor module (10). Connected with the first evaluation units by linkage mans (11), second evaluation units (A21, A22, A23, A24) process the signals processed in the first evaluation units, dependent on a regulation and/or control objective, to activation signals for actuators which influence the vehicle movements.

System for influencing the travel dynamics of an automobile

A piezoelectric force sensor includes a piezoelectric plate, with one electrode on each of the top and bottom sides of the plate. One of the electrodes is electrically connected via a conductor to a contact pad. In the case that the piezoelectric plate experiences breakage, the conductor is broken, and the remaining residual capacitance of the conductor and contact pad becomes so comparatively small that the breakage can be reliably detected.

Piezoelectric force sensor

An acceleration sensor, which is particularly adapted for use in motor vehicles, is improved by structuring it to be readily testable, to assure reliability before installation. The acceleration sensor has a piezo element (1), which consists of at least two piezo-electric plates (2) placed on top of each other, the piezo-electrical polarization of which is oriented in opposite directions. At least two electrodes (9) are placed on each of the topside (7) and the underside (8) of the piezo element (1). For testing the sensor, the piezo element is deformed by the application of an electrical voltage to electrodes (9) of a first lateral portion (11a) of the piezo element. This deformation is detected by means of a deformation-generated voltage at the electrodes (9) of a second lateral portion (11b) of the piezo element.

Acceleration sensor with oppositely-polarized piezoelectric plates

Growing community of inventors

Reutlingen, Germany

Bernd Maihoefer