The invention relates to a method for ascertaining a speed of a vehicle and to a vehicle, in particular a single-track vehicle such as a pedelec, the vehicle having an electric drive unit, a magnetic field sensor and a magnet arranged on a wheel of the vehicle, comprising: – a control device, configured for operating the electric drive unit of the vehicle at a plurality of load points by varying at least one operating variable such as current intensity and/or rotational speed, – a first determining device, configured for determining a functional relationship between a specific interfering magnetic field and the at least one operating variable, – a measuring device, comprising the magnetic field sensor and configured for measurement of a temporal profile of a magnetic field by means of the magnetic field sensor and also of the at least one operating variable of the drive unit such as a current intensity of the drive unit and/or a rotational speed of the drive unit, – a compensating device, configured for compensation of the measured temporal profile of the magnetic field on the basis of the functional relationship and also of the at least one measured operating variable of the drive unit, – a second determining device, configured for determining the speed of the vehicle on the basis of the compensated temporal profile of the magnetic field.
VERFAHREN ZUM ERMITTELN EINES FUNKTIONALEN ZUSAMMENHANGS EINER BETRIEBSGRÖSSE EINER ANTRIEBSEINHEIT EINES FAHRZEUG UND EINES STÖRMAGNETFELDES
METHOD FOR DETERMINING A FUNCTIONAL RELATIONSHIP BETWEEN AN OPERATING VARIABLE OF A DRIVE UNIT OF A VEHICLE AND AN INTERFERING MAGNETIC FIELD
PROCÉDÉ DE DÉTERMINATION D'UNE RELATION FONCTIONNELLE ENTRE UN PARAMÈTRE DE FONCTIONNEMENT D'UNE UNITÉ D'ENTRAÎNEMENT D'UN VÉHICULE ET UN CHAMP MAGNÉTIQUE PARASITE
2024-06-26
Patent
Electronic Resource
German
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