Robert Boschgmbh

Andreas Lassl

Burkhard Kuhlmann

Reinhard Neul

Peter Degenfeld-Schonburg

Nils Felix Kuhlmann

Niels Bode

Matthias Kuehnel

Odd-Axel Pruetz

Jan-Timo Liewald

Mirko Hattass

Thorsten Balslink

Benjamin Schmidt

Oliver Krannich

Christian Hoeppner

Jochen Reinmuth

Lutz Reuschenbach

Frank Schatz

Torsten Baumann

A micromechanical rate-of-rotation sensor set-up, including a first rate-of-rotation sensor device capable of being driven rotationally by a driving device via a drive frame device, so as to oscillate about a first axis, and is for measuring a first outer rate of rotation about a second axis and a second outer rate of rotation about a third axis; and a second rate-of-rotation sensor device capable of being driven by the driving device via the drive frame device, so as to oscillate linearly along the second axis, and is for measuring a third outer rate of rotation about the first axis. The first rate-of-rotation sensor device is connected to the second rate-of-rotation sensor device by the drive frame device. The drive frame device includes a first and second drive frame, which may be driven by the driving device in phase opposition, along the third axis, in an oscillatory manner.

Micromechanical rate-of-rotation sensor set-up, rate-of-rotation sensor array and corresponding manufacturing method

A rotation-rate sensor having a substrate, the substrate having a main-extension-plane, and the rotation-rate sensor includes at least one first and one second mass-element which are oscillate-able, and a first main-extension-direction of the substrate points from the first mass-element to the second mass-element, and a coupling-structure is situated in the first main-extension-direction between the first and second mass-element, in which a first coupling-region of the coupling-structure is situated in a first function-layer, and a first mass-region of the first mass-element is situated in the first function-layer and a second mass-region of the first mass-element is situated in a second function-layer, the first function-layer being situated in an extension-direction perpendicular to the main-extension-plane between the substrate and the second function-layer, a second main-extension-direction being situated perpendicular to the first main-extension-direction, and the first coupling-region having a greater extension in the first main-extension-direction than in the second main-extension-direction.

Rotation-rate sensor, method for producing a rotation-rate sensor

A yaw-rate sensor with a substrate having a main extension plane. The yaw-rate sensor includes a rotation-element assembly, the rotation-element assembly being designed for detecting yaw rates prevailing in a first main extension axis of the substrate and yaw rates prevailing in a second main extension axis of the substrate perpendicular to the first main extension axis. The yaw-rate sensor has a sensor assembly, the sensor assembly being designed for detecting a yaw rate prevailing perpendicular to the main extension plane of the substrate, both the sensor assembly and the rotation-element assembly being drivable with the aid of a drive assembly, the drive assembly being designed for driving movement along the first main extension axis.

Yaw-rate sensor with a substrate having a main extension plane, method for manufacturing a yaw-rate sensor

A MEMS device and a corresponding operating method. The MEMS device is equipped with an oscillatory micromechanical system, which is excitable in a plurality of useful modes, the oscillatory micromechanical system including at least one system component, which is excitable in at least one parasitic spurious mode by a superposition of the useful modes. An adjusting device is provided, which is configured in such a way that it counteracts the parasitic spurious mode by application of an electromagnetic interaction to the system component.

MEMS device including spurious mode suppression and corresponding operating method

A sensor includes a substrate having a first electrode arrangement; a first mass oscillator having (a) a first mass, (b) a first mass centroid, and (c) a second electrode arrangement including a first area centroid coinciding with the first mass centroid; and a second mass oscillator having (a) a second mass equal to the first mass, (b) a second mass centroid coinciding with the first mass centroid, and (c) a third electrode arrangement including a second area centroid coinciding with the first area centroid. Areas of the second and third electrode arrangements are equal. The sensor detects respective rotation rates around axes parallel to and perpendicular to a substrate extension. The oscillators are oscillatorily connected to each other and to the substrate, are deflectable, and experience respective forces in the directions of extension of the axes upon respective rotations around the other of the axes.

One-axis and two-axis rotation rate sensor

A rotation rate sensor having a first structure movable with respect to the substrate, a second structure movable with respect to the substrate and with respect to the first structure, a first drive structure for deflecting the first structure with a motion component parallel to a first axis, and a second drive structure for deflecting the second structure with a motion component parallel to the first axis. The first and second structures are excitable to oscillate in counter-phase, with motion components parallel to the first axis, the first drive structure having a first spring mounted on the substrate to counteract a pivoting of the first structure around an axis parallel to a second axis extending perpendicularly to a principal extension plane, the second drive structure having a second spring mounted on the substrate to counteracts a pivoting of the second structure around a further axis parallel to the second axis.

Rotational speed sensor with minimized interference movements in the driving mode

A rotation rate sensor including a substrate having a main plane of extension, a first rotation rate sensor structure for detecting a first rotation rate about an axis that is in parallel to a first axis extending in parallel to the main plane of extension, and a second rotation rate sensor structure for detecting a second rotation rate about an axis that is parallel to a second axis extending perpendicularly with respect to the main plane of extension. Also included is drive device for deflecting a first structure of the first rotation rate sensor structure, and a second structure of the first rotation rate sensor structure, and also for deflecting a third structure of the second rotation rate sensor structure, and a fourth structure of the second rotation rate sensor structure, in such a way that the first, second, third, and fourth structures are excitable into a mechanically coupled oscillation.

Dual-axis ultra-robust rotation rate sensor for automotive applications

A rotation rate sensor which includes a substrate, a first structure which is movable relative to the substrate and a second structure which is movable relative to the substrate and relative to the first structure. The first structure includes at least one first drive device and the second structure includes at least one second drive device. The first and second drive devices are situated for the joint deflection of the first structure from a neutral position of the first structure in parallel to a drive direction and of the second structure from a neutral position of the second structure in parallel to the drive direction, due to an interaction between the first and second drive devices in such a way that the first and second structures are excitable into an oscillation in phase opposition, in each case with a motion component in parallel to the drive direction.

OMM rotation rate sensor including a drive, without stationary electrodes

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 is described for monitoring a camshaft adjustment of an internal combustion engine in a first operating mode, in which, depending on a time characteristic of an actual value of the angular position of the camshaft adjustment and a time characteristic of a first setpoint value of the angular position of the camshaft adjustment, a decision is made that there are errors in the camshaft adjustment, the decision also depending on a time characteristic of a second setpoint value of the angular position of the camshaft adjustment, the first setpoint value and the second setpoint value each being ascertained at the same operating point of the internal combustion engine, and the first setpoint value for operating the internal combustion engine being ascertained in the first operating mode and the second setpoint value for operating the internal combustion engine being ascertained in a second operating mode.

Growing community of inventors

Korntal-Muenchingen, Germany

Andreas Lassl