The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 04, 2023
Filed:
Nov. 22, 2021
Robert Bosch Gmbh, Stuttgart, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
A method and device for compensating for an influence of a magnetic interference source on a measurement of a magnetic field sensor in a device. In the method, a magnetic flux density Mmeasured with the magnetic field sensor at a measured ambient temperature Tis compensated for with a compensation factor Mof the magnetic interference source according to,where()and Mis a magnetic reference flux density relative to a reference temperature T, a corresponding to a material parameter, which is defined for a used magnet material of the magnetic interference source, and the measured ambient temperature Tbeing corrected using a non-linear delay parameter to a temperature of the magnetic interference source T'. The method is used for the axis-based compensation of a temperature drift, the material parameter a being determined individually for each Cartesian axis.