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US 6,205,838 B1Granted
Device for determining the rotational speed
AssigneeRobert Bosch GmbH
InventorsEberhard Schmid, Siegbert Steinlechner, Johannes Artznei, Reinhard Neul
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AssigneeRobert Bosch GmbH
InventorsEberhard Schmid, Siegbert Steinlechner, Johannes Artznei, Reinhard Neul
Estimating the term…
A device for determining a rotation rate is described, in which by means of digital evaluation circuits the output signals of a rotation rate sensor are evaluated. By identification of the transfer function from the electronically generated oscillation voltage that excites the oscillating body carrying the acceleration elements, to the output of the acceleration elements, or by identification of the transfer function from the electrically generated test voltage at the input of the acceleration elements to their output, the systematic errors of the rotation rate sensor are determined and taken into account in the digital sensor signal processing, with the aid of which the rotation rate is unequivocally determined.
A device for determining a rotation rate, having an oscillatable body, which is set into constant oscillation by means of an oscillation voltage (U1) generated in an electrical circuit, having at least one sensor element which is disposed on the oscillatable body and outputs an output voltage (U2), which is a measure for a acceleration and thus also for the rotation rate, characterized in that the oscillation voltage (U1), which is proportional to an instantaneous speed v(t) of the oscillatable body, is picked up and digitized;
A device for determining a rotation rate, having an oscillatable body, which is set into constant oscillation by means of an oscillation voltage (U1) generated in an electrical circuit, having at least one sensor element which is disposed on the oscillatable body and outputs an output voltage (U2), which is a measure for an acceleration and thus also for the rotation rate, characterized in that the oscillation voltage (U1), which is proportional to an instantaneous speed v(t) of the oscillatable body, is picked up and digitized;
Dependencies are inferred from the claim text.