High-precision agricultural vehicle platform pre-detection active leveling system and method

Abstract

The invention relates to a high-precision agricultural vehicle platform pre-detection active leveling system and a leveling method, which is within the technical field of vehicle platform leveling. The method comprises a platform, a bracket, a base, a vehicle body, a suspension, a wheel, a distance sensor, a body tilt sensor, a platform tilt sensor, a bracket tilt adjustment motor, a platform tiltadjustment motor, a central processor. During the walking operation of the agricultural vehicle, the body tilt sensor periodically reads the pitch angle and the roll angle of the vehicle body. At thesame time, the distance measuring sensor periodically measures the relative height information of the ground in front of the wheel, pre-acquiring the angle adjustment amount of the bracket inclination adjusting motor and the platform inclination adjusting motor under the condition of maintaining the platform level; during the adjustment period, the platform inclination sensor measures the pitch angle and the roll angle of the platform multiple times, and the two inclination adjustment motors perform n adjustment operations respectively, which can ensure high-precision active leveling of vehicle platforms when agricultural vehicles are operating in hills and basins.

Description

technical field [0001] The invention belongs to the technical field of vehicle platform leveling, and relates to a high-precision agricultural vehicle platform pre-detection active leveling system and a leveling method. Background technique [0002] In my country, hills and basins occupy a large area of ​​crop planting land. When agricultural vehicles travel on hills, basins and other terrains, there is a problem that complex terrain changes such as hills and basins will cause large changes in the pitch angle and roll angle of the vehicle body. , resulting in large fluctuations in the operating effect of the working parts on the vehicle platform or body; therefore, certain leveling technical measures need to be taken to keep the working parts on the vehicle platform or body level within a certain tolerance range, so as to ensure the work The working quality of components, common technical measures for dynamic leveling of agricultural vehicles mainly include vehicle platform le...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a high-precision agricultural vehicle platform pre-detection active leveling system and leveling method to solve the problem of large changes in the pitch angle and roll angle of the vehicle body caused by complex terrain changes such as hills and basins, and to realize the walking operation of agricultural vehicles During the process, the vehicle platform is pre-detected and actively leveled; by detecting the relative height information of the ground in front of each wheel, the change in the pitch angle and roll angle of the vehicle body at the next moment is calculated, and the pitch angle and roll angle of the platform are obtained in advance under the condition of keeping the vehicle platform level. The amount of adjustment of the roll angle, so that the pitch angle and roll angle of the platform can be adjusted a period of time in advance, so as to realize the high-precision active leveling of the vehicle platform when the agricultural vehicle is traveling on hills and basins

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