Granted Patent B2

US 12,449,817 · App. 18/064,999 · Granted Oct 21, 2025

Inventors: Yung-Tai Hsu (Taoyuan, TW); Chun-Heng Chao (Taoyuan, TW); Yen-Wei Wang (Taoyuan, TW); Bo-Yu Zhu (Taoyuan, TW)

Assignee: AUDEN TECHNO CORP.

G05D1/0891G06F17/18

Abstract

Claims (21)

1. A heading and attitude correction method, which is applicable to a heading and attitude correction system, for a vehicle, the method comprising:

obtaining a plurality of attitude data in any one of axial directions in a period of time from an axial sensor;

executing a linear regression analysis on the attitude data and a plurality of time points in the time period to generate a regression line and a standard deviation by a calibration circuit;

processing the attitude data and the regression line using the calibration circuit to determine a deviation value at each of the time points;

excluding the attitude data for which the deviation value is greater than or equal to at least twice the standard deviation by the calibration circuit;

grouping the attitude data according to a grouping value to form a plurality of clusters by the calibration circuit;

digitally matching the clusters based on a total quantity of the attitude data in each of the clusters using the calibration circuit, and selecting one of the clusters with a largest total quantity as an ideal cluster;

generating, via a pre-programmed logic in the calibration circuit, a reasonable attitude data based on averaging the attitude data in the ideal cluster, and outputting the reasonable attitude data as a control parameter; and

transmitting the control parameter to a vehicle navigation system to effect a physical adjustment of the vehicle's steering.

2. The heading and attitude correction method according to claim 1 , wherein the grouping value is a minimum accuracy of the axial sensor of the heading and attitude correction system.

3. A heading and attitude correction system for a vehicle, comprising:

an axial sensor configured to sense an attitude of a vehicle to generate a plurality of attitude data in any one of axial directions; and

a calibration module electrically coupled to the axial sensor, wherein the calibration module executes a heading and attitude correction method including:

executing a linear regression analysis on the attitude data and a plurality of time points in the time period to generate a regression line and a standard deviation by a calibration circuit;

processing computing the attitude data and the regression line using the calibration circuit to determine a deviation value at each of the time points;

excluding the attitude data for which the deviation value is greater than or equal to at least twice the standard deviation by the calibration circuit;

grouping the attitude data according to a grouping value to form a plurality of clusters by the calibration circuit;

digitally matching the clusters based on a total quantity of the attitude data in each of the clusters using the calibration circuit, and selecting one of the clusters with a largest total quantity as an ideal cluster;

generating, via a pre-programmed logic in the calibration circuit, attitude a reasonable attitude data based on averaging the attitude data in the ideal cluster, and outputting the reasonable attitude data as a control parameter; and

transmitting the control parameter to a vehicle navigation system to effect a physical adjustment of the vehicle's steering.

4. The heading and attitude correction system according to claim 3 , wherein the grouping value is a minimum accuracy of the axial sensor of the heading and attitude correction system.

Assignments (1)

Continuity (1)

References Cited (18)