Verfahren und Vorrichtung zum Filtern eines Winkelsignals

• Main Authors: Zirkel, Daniel, Lechner, Benjamin, Ungermann, Michael, Raichle, Daniel
• Format: Patent
• Language: German
• Published: 22.12.2016
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION,OR SHOCK; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; PHYSICS; TARIFF METERING APPARATUS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TESTING; TRANSPORTING; VEHICLES IN GENERAL

Die vorliegende Erfindung betrifft eine Filterung eines Winkelsignals. Hierzu wird das Winkelsignal mittels eines Zustandsvariablenfilters gefiltert. Die Übertragungsfunktion des Filters weist dabei in Zähler- und Nennerpolynom gleiche Koeffizienten auf. Hierdurch ist es möglich, in einigen Betriebsmodi einen Phasenverzug durch die Filterung tzu vermeiden.