Patent ID: 11906307
Assignee: AICHI STEEL CORPORATION
Field: Control (Instruments)
Classification: CPC G  B | IPC B  G

Claim 11:
12. A correction method for a gyro sensor which measures angular velocity of a vehicle about an axis in a vertical direction and outputs a sensor output indicating the angular velocity, the method comprising:
a generation process of obtaining correction information based on a difference between a measured azimuth obtained by using the angular velocity indicated by the sensor output and a vehicle azimuth estimated by using markers arranged along a traveling road of the vehicle; and
a correction process of correcting the angular velocity indicated by the sensor output by using the correction information, wherein:
the correction information is information including at least a temporal change amount of the difference, and
the correction process is a process of correcting the angular velocity indicated by the sensor output by shifting the output from the gyro sensor by a correction amount corresponding to the temporal change amount.