Eads Deutschland Gmbh

Airbus Defence and Space Gmbh

Konrad Lentner

Josef Schalk

Stefan Sassen

Karin Bauer

Ralf Voss

Wilhelm Ficker

Tanjo Gleissner

A method for optimized energy management of an electrical system is provided for protecting a component to be protected of the electrical system. The power dissipation of at least one component to be protected is determined, the expected temperature increase is calculated using a thermal model. An estimated end temperature is determined using the expected temperature increase and an ambient temperature. The estimated end temperature is compared with a predefined temperature threshold value. Consumer loads are switched on or off depending on their priority. A device for carrying out the method is provided. The device includes a power meter, calculation unit storage unit, and switching unit for switching consumer loads The electrical system to which the device is assigned includes at least one consumer load and at least one component to be protected.

Method and device for optimized energy management

A micromechanical inertial sensor that includes three component planes, namely a bottom part, a center part and a cover part. The center part is a silicon wafer in which a cardan-type (i.e. gimbal) structure with two oscillating elements is formed. A plate is formed in the silicon wafer which can be pivoted about a rotational axis lying in the wafer plane. Metallized portions or conductive layers form an exciter unit and set the gimbal structure oscillating. The inventive sensor further comprises a device for detecting the displacement of the plate. In addition, a method for manufacturing a micromechanical inertial sensor.

Micromechanical inertial sensor

A micromechanical rotation speed sensor with a gimbals-mounted structure capable of vibration includes two vibration elements () which are swivelled about two axes (A, B) oriented perpendicular toward each other. An excitation unit in the form of an electrode () sets the first vibration element () into a vibration about the first axis of rotation (A). A read out unit in the form of a read out electrode () records a tipping or vibration of the second vibration element () about the second axis of rotation (B) as a measure for the rotation speed of the sensor. Additional mass elements () which are symmetrically aligned are situated on the upper side () and the underside () of the first vibration element () which form a rocker. The sensor is manufactured of at least three individually processed wafers which are finally joined together and form a top part (), a midsection () and a bottom part ().

Micromechanical speed sensor

A device for determining the frequency and/or the amplitude of a vibrating structure includes a vibrating element ( ) and a pair of position sensors ( ) for the determination of the deflection of the vibrating element ( ). The position sensors ( ) are arranged such that their measurements during a half-wave of vibration exceed and/or are less than one another. A comparator compares the measurements of the two position sensors ( ) to determine a threshold value U for the half-wave of the vibration at which their measurements are equal. A device is used for determining the duration during which the measurement of one of the two position sensors ( ) exceeds or is less than the threshold value U . The position sensors ( ) can be capacitors whose electrodes are arranged in a step-like manner. The determination of the amplitude of the vibration is, carried out independent of a potential parallel shift of the movable element ( ), such that there is no distortion of the measurement result.

Growing community of inventors

Mintraching, Germany

Konrad Lentner