Gyroscope attitude automatic identification method and system

Abstract

The invention relates to a gyroscope attitude automatic identification method and system. The method comprises steps that accelerations of a gyroscope in three axial directions are detected, the axialdirection with the maximum acceleration value is determined as a Z axis by comparing acceleration values of the gyroscope in the three axial directions, the Z axis is recorded as a first axial direction, and the other two axial directions are recorded as a second axial direction and a third axial direction; when a vehicle runs under the set working condition, the acceleration of the vehicle is detected, moreover, the acceleration in the second axial direction and the acceleration in the third axial direction of the gyroscope are obtained, matching operation of the acceleration of the vehicleand the acceleration in the second axial direction and the acceleration in the third axial direction is conducted, and the axial direction with the maximum matching degree is determined as the X axis;the Y axis of the gyroscope is determined according to the Z axis and the X axis. The method is advantaged in that a variable gyroscope coordinate system is used as an adjustment object, a fixed whole vehicle coordinate system is used as an adjustment target, so all mounting postures can be adjusted to target postures of the adjustment target, and a problem that measurement data do not correspondto the coordinate direction of the vehicle when the installation posture of an existing gyroscope is wrong is solved.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a method and system for automatic recognition of gyroscope posture. Background technique [0002] The development of existing gyroscopes is becoming more and more miniaturized and modularized, so more and more gyroscopes are integrated on the circuit board in the controller. The axes of the gyroscope are fixed relative to the controller. Under the premise that the installation posture of the vehicle is fixed, the relevant algorithm can obtain accurate calculation results. [0003] However, with the diversification of vehicle layout structure, the installation posture of the controller relative to the whole vehicle is also diversified. At the same time, because the gyroscope is integrated in the controller, the installation posture will also change due to human factors when installing the controller, resulting in The data detected by each axis of the gyroscope is different from ...

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