Patent ID: 11953515
Assignee: STMICROELECTRONICS (CHINA) INVESTMENT CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of processing information of a rotating wheel, the method comprising:
measuring angular velocity of a rotating wheel with a gyroscopic sensor, the gyroscopic sensor being mounted on the rotating wheel;
determining an instantaneous position of the rotating wheel with an accelerometer using a zero-crossing, the accelerometer being mounted on the rotating wheel, wherein determining the instantaneous position of the rotating wheel comprises:
measuring, at the accelerometer, instantaneous values of acceleration along a first direction and a second direction perpendicular to the first direction;
determining, from the measured instantaneous values, a value of acceleration resolved on a rotating plane of the rotating wheel, the rotating plane comprising the first and the second directions; and
determining the instantaneous position of the rotating wheel when the value of acceleration resolved on the rotating plane passes through the zero-crossing; and
determining the angular positions of the rotating wheel based on the measured angular velocity and the instantaneous position of the rotating wheel.