A method for determining residual error compensation parameters for a magnetoresistive angle sensor and method for reducing a residual angle error in a magnetoresistive angle sensor

摘要

A method for determining residual error compensation parameters for a magnetoresistive angle sensor, wherein the angle sensor delivers a first measurement signal as a function of a rotation angle which describes an angle between a magnetic field direction of a measurement magnetic field and a preferred direction of the magnetoresistive angle sensor, comprising the following steps: Generating (2410) a first plurality of value pairs for a plurality of rotation angle values, each value pair of the first plurality of value pairs having a rotation angle value and an associated measurement signal value of the first measurement signal; Determining (2420) a first sinusoidal fit function whose history matches the first plurality of value pairs; and Generating (2430) the residual error compensation parameters from a difference between the determined first sinusoidal adjustment function and the associated measurement signal values of the first measurement signal for the plurality of rotation angle values.